March 8, 2012 A Penton Media Publication Tune in to EngineeringTV.com RECYCLING THERMOFORMED PACKAGES, page 20 LOOKING GOOD WITH STRUCTURAL THERMOSETS, page 42 SETTING STANDARDS FOR BEING GREEN, page 48 MORE FOR LESS WITH OSCILLOSCOPES, page 58 Supplying reliable quality components for the automation and control industries www.altechcorp.com 4ALK ABOUT A BUNDLE OF ADVANTAGES
s%# TECHNOLOGY FROM EBM PAPST GIVES YOU MORE CONTROL OPTIONS FOR ADVANCED APPLICATIONS THAN !# TECHNOLOGY AND ITS HIGH EFlCIENCY ALSO SAVES A WHOLE LOT OF ENERGY s&URTHERMORE IT PROLONGS THE SERVICE LIFE OF AIR CONDITIONING AND REFRIGERATION SYSTEMS AND MAKES THEIR OPERATION MUCH QUIETER s4HE ELECTRONICS ARE COMPLETELY INTEGRATED INTO THE MOTOR MAKING THESE TRULY hPLUG AND BLOWv FANS s/NE MORE THING OUR %# TECHNOLOGY ENABLES YOU TO CREATE AN ENERGY SAVING BUNDLE OF SEVERAL HUNDRED FANS AND CONTROL THEM FROM A SINGLE WORKSTATION &OR A WHOLE BUNDLE OF INFORMATION VISIT www.ebmpapst.us/hyblade The engineer’s choice RS# 101 Industrial Pressure Gages Very High Accuracy Digital Pressure Gage DPG409 Starts at • NEW RANGES! $695 Sealed Gage Optional Wireless Compound Gage Transmitter Available Vacuum and Barometric Ranges • 5-Point NIST Traceable Calibration Included • High 0.08% Accuracy on Most Ranges • Selectable to 20 mA, to 5V or to 10V Analog Output • Large Backlit Display with 25 mm (1") Digits • 11 Selectable Pressure Units Visit omega.com/dpg409 © Damlanpalus / Dreamstime.com General Purpose Digital Pressure Gage DPG8000 Series $360 Visit omega.com/dpg8000 Industrial Digital Pressure Gages DC-, Loop-, or Battery-Powered Models DPG9000 Series Starts at $425 DPG 2001B Series Starts at $349 Visit omega.com/dpg2001b Visit omega.com/dpg9000 omega.com ® Because of transmission frequency regulations, these wireless products may only be used in the United States and Canada (915 mHz models) or Europe (868 mHz models) Digital Pressure Gages No ® RS# 102 © COPYRIGHT 2012 OMEGA ENGINEERING, INC ALL RIGHTS RESERVED VOLUME 84 ISSUE MARCH 8, 2012 MATERIALS The advantages of STRUCTURAL THERMOSETS FEATURES Structural thermosets are an attractive alternative to metals and thermoplastics, thanks to excellent physical properties and surface appearance From car-body panels and helicopter parts to electrical enclosures and sporting goods, manufacturers increasingly rely on structural thermoset sheet-molding compound (SMC) and bulk-molding compound (BMC) to address demands for strong, light, and durable materials Due to intrinsic limitations with metals and thermoplastics, many engineers are turning to structural thermoset compounds to bolster strength and corrosion resistance The strong molecular bonds inherent in thermosets impart a tight web of inner connectivity that lets these materials maintain excellent structural properties despite prolonged exposure to chemical and temperature extremes The materials also increase design flexibility for engineers and production efficiency for manufacturers Here’s a closer look Authored by: Larry Landis Director of Technology and Quality IDI Composites International Noblesville, Ind advantages of structural 42 The thermosets Structural thermosets are an attractive alternative to metals and thermoplastics, thanks to high strength, light weight, corrosion resistance, and excellent surface appearance Edited by Kenneth J Korane ken.korane@penton.com Key points: • Structural thermoset compounds have higher tensile and flexural strength per unit weight than most metals • Cross-linked molecules keep structural thermosets dimensionally stable at high temperatures • Unlike common metals, structural thermosets won’t rust or corrode outdoors or in harsh environments Components often last for decades with little maintenance Structural thermoset basics Structural thermosets are distinguished from standard thermosets by their use of more specialized resins and higher levels of reinforcement — glass, carbon, and aramid fibers, for example The added reinforcement increases strength and stiffness, while resins protect the fibers and improve the compound’s overall physical properties Moreover, manufacturers can tailor these properties by varying ingredients For example, changing fiber type, length, and mix proportion alters its flow, strength, and Resources: IDI Composites International, www idicomposites.com 42 MACHINE DESIGN.com Structural thermoset SMC and BMC materials offer a number of advantages over metals and thermoplastics, including higher strength per unit weight, better dimensional stability and corrosion resistance and, often, lower cost MARCH 8, 2012 rigidity; varying resin concentration and type affects overall strength, along with the compound’s heat or corrosion resistance Heating the material as it is molded forms three-dimensional covalent bonds between polymer molecules This process, known as cross-linking, is irreversible Therefore, cross-linked materials cannot be melted and reshaped The term “thermoset” accurately describes this chemistry Cross-linking creates a rigid 3D molecular structure that lets thermosets maintain the desired physical and electrical properties during prolonged exposure to adverse conditions such as excessive heat This distinguishes thermosets from thermoplastics, which are generally unsuitable for high-temperature environments because they can be remelted after solidification Thermosets tolerate heat-distortion temperatures (HDT) and glass-transition temperatures (Tg) that would literally melt most thermoplastics Three of the most common thermoset resins are polyester, vinyl ester, and epoxy Each has its own price and performance characteristics, so base selection on an application’s functional and cost requirements For example, engineers might choose vinyl-ester resin for corrosionresistant products, epoxy for high-strength applications, and polyester when good overall performance and cost are the driving factors As for reinforcement, many types of fibers can be used depending on the molding process and strength requirements Glass-reinforcement options include choppedstrand, mat with random-fiber orientation, light textile fabrics, heavy woven materials, knitted materials, and unidirectional fabrics Carbon-fiber reinforcement is used for applications that require exceptional strength coupled with severe weight restrictions Structural thermoset SMC Most structural thermosets are in the form of sheetmolding compound SMC is a cost-effective, lower-weight alternative to many metals Standard SMC contains 10 to 30% reinforcement, while structural grades are typically in the 40 to 65% range Reinforcement is normally choppedstrand glass fibers 0.5 to 2.0-in (12.7 to 50.8-mm) long Structural-thermoset SMC is manufactured in a continuous process that combines a viscous paste and glass fiber on specialized equipment with a continuous web Paste containing the resin and additives is poured onto a carrier film, then cut glass fibers are added, along with a second layer of film The paste and glass between top and bottom carrier films creates a thin “sandwich” that is run through a series of serpentine rollers The serpentine action and resulting pressure causes the paste to coat MARCH 8, 2012 42 880: Sustainability for 48 ULE Manufacturing Organizations Just because a company states they operate in a sustainable fashion doesn’t make it so New procedures from UL E help confirm their claims 49 MACHINE DESIGN’s LITERATURE EXPRESS your father’s 58 Not oscilloscope Oscilloscope readings on a Web page? Even low-end oscilloscopes can provide output in a variety of formats that make measurements more useful 62 Synchronous technology can move between What’s hot in CAD history-based and direct modeling The next step in realistic CAD — stereoscopic design? And more ELECTRICAL & ELECTRONIC Not your father’s Even less-expensive oscilloscopes provide data in a variety of formats once available only from top-ofthe-line instruments OSCILLOSCOPE Like most technologies, oscilloscopes have evolved over time Digital-storage oscilloscopes, or DSOs, are now the preferred type for most industrial applications And features that once were available only on expensive, premium DSOs are now becoming commonplace on even “nonWindows” scopes that start in the $2,000 range Upgradable bandwidth, deep memory, large displays, and fast update rates are just a few examples In the past, only higher-end oscilloscopes have offered Oscilloscope display via iPad: Today VNC clients can be used to control features such as Ethernet Windows-based oscilloscopes via mobile platforms such as the iPad and USB connections Less-expensive offerings have gone beyond floppyenable this connection, you connect a USB cable between drive storage and GPIB programming a USB Host port on a PC and the USB Device port on the New connectivity options have started to trickle down oscilloscope to less-expensive oscilloscopes In almost all cases, USB A USB Device connection typically involves some sort has replaced floppy drives as the de facto connection of driver library Scopes from Agilent Technologies Inc., on oscilloscopes Now to save a screen or data file, usSanta Clara, Calif., for example, use an IO Library, which ers simply insert a USB thumb drive into a connection includes a connection expert program to assist with setting typically referred to as a “USB Host.” Some oscilloscopes up the link to the scope With the connection established, today can support USB thumb drives up to 128 Gbytes remote commands can control the oscilloscope of storage In addition to USB Host connections, many oscilloscopes now have USB Device connections Instead Ethernet connectivity of being used to connect thumb drives, these connections permit remote control of oscilloscopes via USB To While USB connectivity has been relatively common 58 MACHINE DESIGN.com MARCH 8, 2012 58 Access our Reader Service Web site to quickly find and request information on the products and services found in the pages of MACHINE DESIGN www.machinedesign.com/rsc MACHINE DESIGN.com MARCH 8, 2012 MACHINE DESIGN.com 43 Parts you use every day, at everyday great prices We’ve got the pneumatic parts you need, and they ship the same day* New are quick-disconnect hose couplings, which allow easy changing of tools or hose connections Brass fittings work with water, oil and many compressed gases Aluminum manifolds give you flexibility in designing a system And everyone needs a blow gun in their tool kit! See everything at: www.automationdirect.com/pneumatic-parts Also Available Start at: Aluminum Manifolds • • $6.75 Round manifolds with 3/8 inch NPT input, and two or three 1/4 inch NPT outputs Rectangular models with 1/2 inch NPT inputs on either end, and three or five 1/4 inch NPT outputs Start at: Brass Threaded Fittings • • • • $4-p.0ac0k) (5 10 different styles, including Tee and elbow Male and female connectors in 1/8 to 1/2 inch sizes Work with water, oil, air and other gases Maximum pressure 800 psi Quick-disconnect Air Couplings Pneumatic Air Cylinders Tubing and Hose • • • Start at: $5.00 Plugs and couplers for 1/4 and 3/8 inch hose sizes Male and female NPT threaded Compatible with three of the most popular connection styles Start at: Pneumatic Blow Guns • $4.25 Palm type with safety tip, pistol grips, pocket style, and plastic grip with flexible nozzles in various lenghs Fittings and Air Couplings www.automationdirect.com Go online or call to get complete information, request your free catalog, or place an order Pneumatic Solenoid Valves and Manifolds 1-800-633-0405 Air Preparation RS# 103 ON THE COVER DEPARTMENTS A geometry being created in a PolyPlane.com video tutorial EDITORIAL Old codgers always gripe about “the kids” 10 EDITORIAL STAFF 12 LETTERS 16 SCANNING FOR IDEAS Rack-and-pinion lubricator ensures smooth operation and a long life Enclosure protects electronics and controls from harsh environments 20 28 33 34 REPORTER’S NOTEBOOK LOOKING BACK SENSOR SENSE COMMENTARY Problems with pre-engineering education? 36 BERKE ON SAFETY GFCIs — What they are and are not 38 VANTAGE POINT Don’t wait for government to address skills gaps — Mark C Tomlinson 40 INVENTOR’S CORNER Spiral-chambered turbine engine packs a one-two punch 68 FE UPDATE The role of parametric CFD analysis in design 71 PRODUCT SPOTLIGHT Cylinders & valves 74 76 77 78 78 79 PRODUCTS AD INDEX BUSINESS INDEX CLASSIFIEDS BUSINESS STAFF BACKTALK MACHINE DESIGN.com For customized article reprints and permissions please contact: Penton Reprints, 1-888-858-8851, e-mail at reprints@pentonreprints.com or visit pentonreprints.com Editorial content is indexed in the Applied Science Technology Index, the Engineering Index, SciSearch and Research Alert Microfilm copies available from National Archive Publishing Company (NAPC), 300 N Zeeb Rd., P.O Box 998, Ann Arbor, MI 48106-0998, Ph: 734-302-6500 or 800-420-NAPC (6272), extension 6578 Permission to photocopy is granted for users registered with the Copyright Clearance Center (CCC) Inc to photocopy any article, with the exception of those for which separate ownership is indicated on the first page of the article, provided that the base fee of $1.25 per copy of the article, plus $.60 per page is paid to CCC, 222 Rosewood Dr., Danvers, MA 01923 (Code No 0024-9114/12 $1.25 + 60) Subscription Policy: MACHINE DESIGN is circulated to research, development, and design engineers primarily engaged in the design and manufacture of machinery, electrical/electronic equipment, and mechanical equipment To obtain a complimentary subscription see our Web page at submag.com/sub/ mn For change of address fill out a new qualification form at submag.com/sub/mn Printed in U.S.A., Copyright © 2012 Penton Media, Inc All rights reserved MACHINE DESIGN (ISSN 0024-9114) is published semimonthly except for a single issue in January, February, June, July, and December by Penton Media, Inc., 9800 Metcalf Ave., Overland Park, KS 66212 Paid subscriptions include issues 1-18 Issue No 19 (OEM Handbook and Supplier Directory) is available at additional cost Rates: U.S.: one year, $139; two years, $199; Canada/Mexico: one year, $159; two years, $239; All other countries: one year, $199; two years, $299 Cost for back issues are U.S $10.00 per copy plus tax, Canada $15.00 per issue plus tax, and Int’l $20.00 per issue Product Locator, $50.00 plus tax Prepaid subscription: Penton Media (MACHINE DESIGN), P.O Box 2100, Skokie IL 60076-7800 Periodicals Postage Paid at Shawnee Mission, Kans., and at additional mailing offices Can GST #R126431964 Canadian Post Publications Mail Agreement No.40612608 Canada return address: Pitney Bowes, P.O Box 25542, London, Ont., N6C 6B2 Digital subscription rates: U.S.: one year, $69; two years, $99; Canada/Mexico: one year, $79; two years, $119; All other countries: one year, $99; two years, $149 MARCH 8, 2012 POSTMASTER: Send change of address notice to Customer Service, MACHINE DESIGN, P.O Box 2100, Skokie, IL 60076-7800 SolidWorks is a registered trademark of Dassault Systèmes ©2012 Dassault Systèmes All rights reserved THE HOT ROD BABY BUGGY IS ROAD READY PRO J E CT � O F LE T’S GO DE SIG N In this interactive web series, SolidWorks brings together CAD fanatics from around the world to collaborate on innovative design projects With their help, our host Jeremy Luchini successfully designed the first hardcore baby buggy for dads Watch its development from design to build - and how SolidWorks was used to bring ideas, comments and your votes to life at LetsGoDesign.tv RS# 135 CAD TECHNOLOGY GUIDE Simulation software helps build amphibious vehicle for Arctic-oil facilities Arktos Developments Ltd (ADL), Surrey, B C., Canada, the designer and manufacturer of an amphibious vehicle known as the Arktos Craft, uses simulation software to prepare its vehicles to operate in some of the world’s most environmentally demanding locations Originally designed as an amphibious evacuation craft for Arctic offshore oil facilities, the Arktos Craft can move from frigid –50°C (–122°F) temperatures through burning flames, and back again, as in the case of evacuating a burning oil rig Additionally, the Arktos Craft can easily navigate ice-rubble fields, ice ridges and open water — and can even climb up or down vertical steps — making the Arktos a highly capable exploration craft Autodesk Simulation from Autodesk Inc., San Rafael, Calif., provided the mechanical simulation software Valmont West Coast Resources: Engineering (Valmont), Arktos Developments Ltd., D elt a, B C., C anada, which provides finite-ele- www.arktoscraft.com Autodesk Inc., http://usa ment-analysis (FEA) serautodesk.com vices to ADL, was responby temperature extremes would RS# 624 sible for predicting vehicle combine with mechanical stress Valmont West Coast performance in severe enin the articulated arm AddiEngineering, www.wceng.com vironments “We used Autionally, the arm would see retodesk Simulation to prepeated compressive and tensile dict critical stresses for the loading so Valmont also anaArktos at extreme temperatures and loading lyzed fatigue life using the Autodesk Simulaconditions,” says engineer Ioan Giosan at tion multiphysics tools Valmont “After finding an optimal design “We continue to modify the original using FEA methods, we relied on physical Arktos design for each of our new customer’s testing and field use to validate the accuracy special needs,” says ADL President Bruce Seof our results.” ligman “Autodesk software makes it easy for The key to the Arktos Craft’s mobility is us to design new attachments for the craft, an articulated arm between the vessel’s two and then simulate how those modifications main compartments As the craft climbs up will affect performance Sharing early cononto an ice shelf from the water, the hydraucepts and results with stakeholders digitally lics in the arm help push the front unit of is a critical part of our development workthe craft out of the water so the special track flow today and it is all powered by Autodesk spikes can grab the ice software.” Using the multiphysics capabilities of Arktos Craft units are currently operatAutodesk Simulation, Valmont could show ing in Alaska, China, and the Caspian Sea in ADL engineers how thermal stress caused Kazakhstan MD 66 MACHINE DESIGN.com MARCH 8, 2012 The design of the Arktos Craft amphibious vehicle was analyzed in Autodesk Simulation software Modeler for organic shapes Freeform Version 12 adds over 50 new features and enhancements It lets users efficiently and cost effectively create complex models, with organic and manually sculpted looks that can’t be modeled in Nurbs Highlights include faster and more-flexible deformation and roughing-out tools and a bigger toolset for developing engineered production-ready organic models across representational types For example, uses can break up polygon models for articulation, interactively optimize mold pull direction, fix moldability problems, and develop complex parting surfaces In addition, Version 12 lets users interoperate between polygon models, Nurbs, and voxels Resources: Sensable, 181 Ballardvale St., Wilmington, MA 01887, (781) 937-8315, www.sensable.com RS# 625 MARCH 8, 2012 MACHINE DESIGN.com 67 FE UPDATE The role of parametric CFD analysis in design Fluid dynamics is one of the primary engineering sciences used to design a wide variety of vehicles, machines, and other devices In the past, fluid-dynamic analysis was fairly simple, using empirical formulas from engineering handbooks or other simplified analysis techniques However, as computer power becomes less expensive, fluid-dynamic analysis is shifting toward more-complex, powerful computational-fluid-dynamics (CFD) techniques A low-cost, rapid way to analyze performance and optimize designs comes from what is called “parametric CFD analysis.” It includes five steps: problem definition, dimensional reduction, experimental design, management of CFD simulations, and metadata analysis The metadata analysis stage may also include surrogate modeling, visualization, optimization, and sensitivity analysis Consider an aerodynamic design that entails placing vortex generators (VG) on the wing of a commercial airliner VGs are typically added to correct undesirable flight attributes such as low-speed instability or too-little control Even minor changes to an aerodynamic configuration such as this can significantly harm the aircraft’s handling and, thus, necessitate complex analysis Engineers mastering the five stages of parametric CFD analysis better understand how the device behaves and, therefore, produce better designs Here is an example of using the five steps of parametric CFD analysis Problem definition For all designs, engineers must define requirements for the system, component, or process For machines, requirements include the operating envelope of the equipment, which defines the range of conditions over which the device must operate safely In the case of commercial airliners, the operating envelope is the range of all parameters at which the aircraft may safely fly Among the requirements for an airliner are that it be efficient and safe Aircraft designers extensively test designs to meet these requirements using CFD simulations, wind-tunnel tests, and flight tests Undesirable flight attributes often arise because of a boundarylayer separation on the wing surfaces This occurs when the boundary layer, a thin layer of slow-moving air caused by friction near the surface, separates from the surface of the wing Due to the wing sweep, boundary-layer separation on the outer portion of the wing is a common problem on commercial jets VGs circulate high-energy flow into the boundary layer, suppressing boundarylayer separation and mitigating the problems While common, vortex generators are actually an aerodynamic compromise They delay the onset of boundary-layer separation, but Authored by: Scott Imlay Chief Technology Officer Tecplot Inc Bellevue, Wash Resources: Tecplot Inc., www.tecplot.com Edited by Leslie Gordon, leslie.gordon@ penton.com, Twitter @LeslieGordon Scan this code for another feature on computational fluid dynamics (CFD), or go to: http://machinedesign com/article/cfd-revealsless-work-1122 VGs are placed along part of the wing of a commercial aircraft Photo by Fred Hall Photos 68 MACHINE DESIGN.com MARCH 8, 2012 also increase parasitic wing drag Increasing drag reduces fuel efficiency, so aerodynamicists are careful about when and where they use VGs So where to place them? Obviously, aerodynamicists must test a wide variety of locations Tests will likely focus on the landing configurations and high angle-of-attack regions where boundarylayer separation happens However, other flight conditions and configurations can’t be ignored For example, certain VG distributions may work to eliminate boundary-layer separation at landing configurations, but cause more drag at cruise configuration Because the location of VGs alters flight attributes and aircraft performance, engineers must evaluate it throughout the flight envelope The problem is a constrained-optimization problem, which in this case is best solved with a parametric analysis The placement of each VG is defined by three parameters: spanwise (wing root to wing tip) location, chordwise (leading edge to trailing edge) location, and angle relative to the aircraft plane of symmetry In the example, the wing has 21 VGs; therefore, because each VG has three degreesof-freedom (DOF), including all the DOF would add 63 parameters to the parametric analysis When added to the five flight parameters and six (minimum) configuration parameters, the design space has 74 dimensions — quite large Dimensional reduction Like most engineering-design problems, the full problem definition results in too many dimensions for a reasonable parametric analysis Fortunately, it’s possible to reduce the number of dimensions by taking advantage of previous studies on similar devices For example, VGs have been used since the The Tecplot screenshot shows CFD data management and metadata analysis for a high-lift configuration 1940s and guidelines for their use are available in literature These include suggested size, spacing, and angle of the vortex generators The chordwise position is more problem-dependent and thus allowed to vary in the parametric study This brings the number of dimensions down to 21 VGs, and 32 overall, still a large design space To further reduce the number of DOF, use analytical distributions for the chordwise position of the VGs The outer five VGs are in a straight line at a constant chordwise position — one DOF instead of five The chordwise positions of the inner 16 VGs could be approximated by a quadratic equation resulting in three DOF instead of 16 The upshot is a total of four DOF, which, when added to the 11 flight and configuration parameters, results in a total of 15 dimensions Experimental design In this context, “experimental design” refers to the set of cases that the CFD code will run The cases are selected to efficiently span the design space, with the goal of minimizing drag at cruise while retaining stability and control throughout the operating envelope High-resolution CFD solutions of full aircraft configurations — espeMARCH 8, 2012 cially landing configurations — are expensive, so the number of cases is limited A space-filling design such as Latin hypercube (a statistical method), or one of its optimal variants, would probably be used to ensure coverage of the full range of each parameter For 15 dimensions, even a small parametric study would likely include hundreds of runs Each run generates a large amount of 3D field data in addition to metadata results Ideally, the 3D data is kept to verify solution quality and investigate the underlying cause of anomalies in the metadata Management of CFD simulations A key requirement for high-quality CFD solutions is that the grid-spacing be fine enough to resolve the dominant flow features Ideally, a sufficiently fine grid would be used to resolve all of these flow features to a high degree, but there are seldom enough computing resources to this Also, certain subgrid quantities, such as turbulence, are modeled, so no model is ideal for all flows For this reason, CFD experts must evaluate the results to ensure assumptions aren’t violated The analysis of VG placements strain the current capabilities of MACHINE DESIGN.com 69 FE UPDATE CFD simulations When the simulaHow vortex generators affect boundary-layer separation tion calculates the vertical flows, a fine Before VGs grid is needed in the spanwise direction Normally, the boundary layer is resolved using a fine Boundary layer Wing Smooth wall-normal grid and begins to separate stalls airflow the grid spacing in After VGs the spanwise direction The streamwise directions are left coarse, reducing the number of grid Boundary Vortex points Near the VG, Boundary layer layer remains airflow the grid must also be energized by vortices attached refined in all three directions When the velocity field in 21 streamwise vortices must be resolved, the number of point in parametric space and rethe parametric space, or create an grid points gets large, making the turns a set of dependent variables iso-surface plot of any variable in CFD simulations time consuming The surrogate model is an apany 3D subspace of the parametric A CFD expert must verify that proximation of the values that are space Using these visualizations, the fine grid is properly placed obtained by running the CFD code users can recognize relationships to compute the vortices Finally, at that point in parametric space between variables and identify there have been efforts to reduce and runs much faster local minima and maxima in the the number of grid points by modSurrogate models take a wide subspaces eling the vortex-generator geomevariety of forms This aircraft wing A common concern in engitry as a step-function in secondary example is a polynomial in 15 neering design is how sensitive velocities — a subgrid effect This dimensions If it were a quadratic the device is to changes in the allows a comparatively coarse grid response surface, a second-order independent parameters More in the streamwise direction and polynomial with cross terms, it specifically, it would be helpful to reduces the computer resources would have 136 terms To use this know the leverage of each inderequired for the CFD simulations model, the experimental design pendent variable on the changes Ideally, the tools used to manmust contain at least 136 cases in each dependent variable Using age the parametric data make it Higher-order response-surface a surrogate model, it is relatively easy to verify the quality of the models, like fourth-order modstraightforward to estimate the CFD solutions The metadata and els, are also common but have sensitivity or perform an analysis links to 3D field data files get far more terms and require more of variance (ANOVA) stored in a database A graphical cases Mastering CFD for engineerfront-end to the database simpliSurrogate models allow the ing design Parametric CFD analyfies the access to the data, perhaps visualization of metadata even sis has been shown to play a cruthrough clicking on scatter symwhen the experimental design has cial role in the engineering design bols representing individual cases cases widely dispersed throughof fluid-dynamic devices Without or data in tables This practice out the highly dimensional space it, engineering methods can be allows rapid evaluation of a flow The surrogate model effectively costly and time consuming By the field and grid to look for potential fills the empty space between time a project is complete, there quality issues cases with an approximation of could already by a more-efficient Metadata analysis The efthe true data The surrogate model way to utilize the device An unfectiveness of the VGs is evalulets users create XY plots of the derstanding of the five stages of relationship between metadata parametric CFD analysis gives usated through metadata analysis variables along any line through ers a better understanding of how The first step in analyzing the parametric space Likewise, it’s a device behaves over its entire metadata is to create a surrogate possible to create contour plots operating envelope and quickly model Like the CFD code itself, of any variable along any plane in produces better designs MD the surrogate model inputs the 70 MACHINE DESIGN.com MARCH 8, 2012 SPOTLIGHT CYLINDERS & VALVES SafetyMixing/diverting shutoff valve ball valve The E828 hazardous-location safety-shutdown valve is designed specifically for broad temperature ranges The automatic safety-shutoff solenoid valves are suited for heating equipment, furnaces, ovens, kilns, boilers, gas generators, incinerators, flare stacks, oil batteries, tank heaters, and line heaters Features include a wide operating temperature range of –40 to 65°C; low power draw of 1.8 W, three voltages — 12 and 24 Vdc and 120 V/60 Hz ac; operating pressure differential of to 30 psi; and tough 316 stainlesssteel construction Three high-flow-capacity sizes are available: ¾-in NPT – 5.8 Cv (3,375,000 Btu/hr capacity); 1-in NPT – 13 Cv (7,575,000 Btu/hr capacity); and 1½-in NPT – 29 Cv (16,875,000 Btu/hr capacity Peter Paul Electronics Co Inc., 480 John Downey Dr., Box 1180, New Britain, CT 06050, (860) 229-4884, www.peterpaul.com RS# 446 Allstainless cylinders The All Stainless Original Line Series of cylinders has been expanded to offer 12 bore sizes — 5/16 through 3-in bore The nonrepairable actuators feature stainless-steel end caps, urethane wipers, PTFE-based rod and pivot bushings, and food-grade synthetic grease Bimba Manufacturing, 25150 S Governors Highway, University Park, IL 60484, (708) 5348544, www.bimba.com RS# 447 r formation via ou Request free in Web site at ice Reader Serv c design.com/rs ww w.machine A three-way mixing/diverting ball valve has a common inlet port that can be open to flow with the outlet ports either individually, for diverting service, or simultaneously, for mixing applications The miniature ball valve is made in 303 or 316 stainless steels, with a variety of available seal materials It has excellent corrosion resistance and fluid/temperatures compatibility Beswick Engineering Co Inc., 284 Ocean Rd., Greenland, NH 03840, (800) 354.5014, www.beswick.com RS# 448 Steam valves A new range of steam valves with interchangeable coils consists of two valves: the EV215B and EV225B The valves are constructed of dezincification-resistant brass, with a floating polymer disc and a stainless-steel seat, making the valve bodies extremely resilient Users can attach one of three different coils, designed to cope with temperatures to 140, 160, or 185°C The coils are clip-on for quick and easy mounting With an IP65 rating, the coils resist to aggressive steam and impurities The dirt-resistant EV225B is for heating water in laundry machines and dishwashers The EV215B’s highpressure resistance makes it suitable for steam-injection applications, such as flat irons and dryers Both valves are suitable for autoclaves and steam sterilizers Danfoss Industrial Automation, 11655 Crossroads Circle, Baltimore, MD 21220, (410) 933-6009, www.danfoss.us/ia RS# 449 MARCH 8, 2012 MACHINE DESIGN.com 71 SPOTLIGHT CYLINDERS & VALVES Valve terminal The VTUB-12 lightweight valve terminal is designed for localized machinemounted applications The Series is capable of flowing up to 400 lpm or 14 scfm with a maximum pressure of bar or 120 psi Constructed with a lightweight, high-performance engineered polymer, the valves are mounted on a durable aluminum profile that is also lightweight The valve terminal is available as a multipin electrical connection; as many as 35 valves can be installed on one terminal with its single screw and hook method Available connection cables allow up to a 10-m separation between the controller and the valve Festo, 395 Moreland Rd., Hauppauge, NY 11788, (800) 993-3786, www.festo.com/us RS# 450 Stepper-controlled proportional valve The high-flow stepper-controlled two-way proportional valve features a bonded elastomeric seat that provides above-average sealing and fine control at low flow for millions of cycles Additional features include 2% hysteresis, 2.5% of full scale linearity, 2-msec reaction time, and a to 300-slpm flow range Clippard Instrument Laboratory Inc., 7390 Colerain Ave., Cincinnati, OH 45239, (513) 521-4261, www.clippard.com/scpv-m RS# 451 GRAPHALLOY BEARINGS CAN TAKE THE HEAT ® HANDLE HIGH TEMPERATURE AND HARSH OPERATING CONDITIONS WITH EASE GRAPHALLOY® bushings, bearings and components: • Survive when others fail • Run hot, cold, wet or dry • Excel at -450°F to 1000°F • Corrosion resistant • Self-lubricating • Non-galling • Low maintenance • Ovens, dryers, pumps, valves, turbines, mixers, conveyors GRAPHITE METALLIZING CORPORATION Yonkers, NY 10703 U.S.A ISO 9001:2008 H06a TEL 914.968.8400 • WWW.GRAPHALLOY.COM/MD 72 RS# 136 MACHINE DESIGN.com RS# 137 MARCH 8, 2012 High-flow-capacity solenoid valve General-purpose and specialty solenoid valves A high-density interface (HDI) solenoid valve offers increased flow capacity without sacrificing size and weight The Lo-Lohm HDI uses a spike and hold voltage drive to extend flow and pressure ranges (19 to 39 slpm @ 50 psid) Available in plug-in and face-mount configurations, the valve measures 1.25-in long and weighs only 4.5 gm The Lee Co., Pettipaug Rd., Box 424, Westbrook, CT 06498, (800) 533-7584, www.theleeco.com/EFSWEB2.NSF/51afc74e7 f2112c9852563a9005db170/ec7bb21ff1dee0 868525790400604197!OpenDocument RS# 452 A 300-page catalog covers the Skinner and Gold Ring lines of solenoid valves The company’s two, three, and four-way general-purpose and specialty valves are engineered for a wide range of applications, including hot water and steam for industrial dishwashing, industrial laundry and cooking equipment; NSF certified beverage dispensing; compressors and compressed-air systems, including condensate drain valves; fuel dispensing; traditional and alternative-fuel delivery systems; and medical and instrumentation Also included is information on the Valve Actuation product line, coils and enclosures reference guide, technical information, and a safety guide Download a free copy from the company’s Web site Parker Hannifin, Fluid Control Div., 95 Edgewood Ave., New Britain, CT 06051, (860) 827-2300, www.parker com/fcd RS# 453 ● ● ● ● ● ● No swell Replaces bronze Self-lube No greasing Enviro friendly No heavy metals Extended MTBR Toll free: 1866 635 7596 vesconite@vesconite.com vesconite.com RS# 138 MARCH 8, 2012 RS# 139 MACHINE DESIGN.com 73 PRODUCTS & LIT r formation via ou Request free in Web site at ice Reader Serv c design.com/rs ww w.machine Rotary positioning The ServoBelt Rotary 200 (SBR 200) stage can move up to 100-kg loads The unit’s huge through-hole makes it easy to bring utility connections, sensors, and other components to the top of the stage The SBR 200 offers a stiff symmetrical drive mechanism that enhances stiffness and eliminates backlash, contributing to the unit’s positioning accuracy The rotary stage features a 200-mm through hole; 38-N-m Continuous-movement cable Chainflex CF Thermo cable is for use in temperature-sensing equipment where it acts as a thermocouple extension link The cable is available in types J, K and T for a variety of different industries CF Thermo features an abrasion-resistant PUR outer jacket It can be used in applications with high mechanical loads, travels up to 164 ft, and is flame-retardant, as well as oil and coolant resistant igus Inc., Box 14349, East Providence, RI 02914, (800) 521-2747, www.igus.com RS# 467 Wi-Fi transmitters torque; 25 (axial) and 21 kN (radial) load capacities; 1,050-N-m maximum moment; ±100 arc-sec bidirectional repeatability; ±15 arc-sec unidirectional repeatability; ±60 arc-sec accuracy, and 100-kg maximum payload Bell-Everman Inc., 82 Aero Camino Rd., Goleta, CA 93117, (805) 685-1029, www.bell-everman.com RS# 465 The wSeries Wi-Fi transmitters, which communicate on standard Wi-Fi networks, are ac or battery powered The battery version comes with two alkaline C-cell batteries that last for two years, depending on the frequency of readings The ac version comes with a universal adapter that operates on any voltage (110 to 240 Vac) and also includes an alkaline AA backup battery Styles include analog voltage and current (0 to 10 V, to 20 mA), temperature from digital sensors and dual thermocouples, humidity, and barometric pressure Users can view charts and graphs, as well as monitor and record readings from virtually any type of transducer, over an Ethernet network or the Internet from any computer, tablet, or smart phone with a Web browser Alarms can be set to notify users by e-mail The alarm can be sent to a single user or a group, and include text messages to cell phones The wSeries Wi-Fi sensors are protected in a rugged weatherproof, polycarbonate NEMA-4/IP65-rated housing Newport Electronics Inc., 2229 South Yale St., Santa Ana, CA 92704, (714) 540-4914, www.newportus.com/ppt/wseries.html RS# 468 Power supplies Power supplies are available for variable-torque electromagnetic brakes and clutches, such as magnetic particle and hysteresis brakes and clutches Output current is manually controlled using a potentiometer or a to 10-V control signal Output is also scaled by a separate Span Max adjustment, so fine control, even for low current loads, is easy The supplies offer outputs of 12-Vdc @ 1.25 A or 24 Vdc @ 0.75 A and come in enclosed or open versions, with or without an LCD ammeter Placid Industries Inc., 139 Mill Pond Dr., Lake Placid, NY 12946, (518) 523-2422, www.placidindustries.com R# 466 74 MACHINE DESIGN.com MARCH 8, 2012 Diaphragm pump The new Type NF1.25 diaphragm pump handles dosing or transferring liquids or liquid-gas mixtures at flow rates up to 300 ml/min The pump is engineered to operate either intermittently or continuously against pressure up to 87 psig Versions can be developed to handle pressures up to 145 psig The pump’s have a patented valve and sophisticated diaphragm technology Users can choose from a wide selection of motors, including iron-core dc, ironless-core dc, or brushless-dc (BLDC) versions The BLDC models can be supplied with simple two-wire operation or with four wires for advanced tachometer output and speed control input, and a highly linear control curve (flow rate versus control voltage) for use in closed-loop systems These self-priming pumps can run dry, require virtually no maintenance, and offer chemical resistance by using PP, PTFE, EPDM, and FFMP for components that contact the pumped medium Specialized accessories are available, including an antivibration mounting plate that can reduce vibration levels and audible noise Pumps can be mounted in any position KNF Neuberger Inc., Black Forest Rd., Trenton, NJ 08691, (609) 890-8600, www.knfoem.com RS# 469 Stampings catalog Dc servomotors The 2012 Metal Stamping Brochure is an in-depth, eight-page booklet that details the company’s vast, high-quality stamping capabilities With its innovative technology and engineering concepts, the company accommodates diverse, complex applications, offering such services as flat blanking and piercings in sizes up to 12 × 12-in., metal forming in thicknesses from 0.005 to 0.134 in., and draws up to 3-in deep and in in diameter Also covered is the company’s secondary operations, including deburring, tapping, reaming, counterboring, spotfacing and more Included in the brochure is a quickreference guide complete with several useful resources, such as a Base Elements chart, a Decimal Equivalents chart, and an extensive glossary of more than 100 industry terms Boker’s Inc., 3104 Snelling Ave., Minneapolis, MN 55406, (800) 927-4377, www.bokers.com RS# 470 The 8540 Series dc servomotors feature improved power density through the use of bonded neodymium magnets The units have approximately twice the continuous torque rating of previous motors The motors measure 1.18 in (30 mm) in diameter and come in three lengths — 2.114 in (53.69 mm), 2.585 in (65.66 mm), and 3.057 in (77.65 mm) Depending on the model, continuous torque ratings range from 2.5 to 8.3 oz-in (0.018 to 0.059 Nm) without the use of a heat sink The motors are available with eight standard windings ranging from 9.55 to 48 V and have standard preloaded ball bearings that allow for high speeds, radial and axial-shaft loading, and higher temperatures Pittman, 343 Godshall Dr., Harleysville, PA 19438, (330) 673-3452, RS# 471 www.ametektip.com Mechanical hardware catalog The new D810 Inch Catalog is an easy-to-use book that includes new products, detailed indexes, and comprehensive technical data Over 87,000 components are featured, including an entirely new section of industrial quality leveling foot mounts The D810 contains 1,520 pages of newly organized layouts making it easier to read and locate parts Stock Drive Products/Sterling Instrument, 2101 Jericho Turnpike, Box 5416, New Hyde Park, NY 11042, www.sdp-si.com/eStore RS# 472 MARCH 8, 2012 MACHINE DESIGN.com 75 ADVERTISER INDEX RS# .COMPANY PAGE 116 .Minnesota Rubber .19 133 .Absopulse Electronics Ltd .47 112 .National Instruments 118 .Airpot Corp/Airpel 24 Corporation .13 119 .Airpot Corp/Airpel 25 102 .Omega Engineering Inc 103 .Automationdirect.com Ondrives.us 28 105 .Automationdirect.com 126 .Pepperl+Fuchs .32 125 .Avago Technologies U.S Inc 31 127 .Pepperl+Fuchs .33 Reduce costs 131 .Avago Technologies U.S Inc 39 110 .Precision Paper Tube .10 and ensure quality 123 .Avnet 29 114 .Proto Labs, Inc 15 132 .Avnet 41 115 .Sapa Industrial 40 years Advancing Automation Extrusions, Inc .17 145 .Baldor Electric Co IBC 134 .Seal Master Corporation 47 138 .Beswick Engineering Company, Inc 73 146 .Bimba Manufacturing Company BC 108 .Clippard Instrument Laboratory, Inc Simply added value 10 times more added value for your automation For more information: Call: 1-800-Go-Festo 1-800-463-3786 www.festo.com/us/addedvalue 124 .Smalley Steel Ring Company 30 135 .SolidWorks Corporation 65 107 .Spirol International 101 .EBM-Papst IFC Corporation 104 .Exair Corporation 113 .Trim-Lok Company 14 117 .Fabco Air, Inc .23 139 .Vesco Plastics Sales 73 140 .Festo Corporation 76 120 .W.L Gore & Associates Inc 26 129 .Goodfellow Corp .36 121 .W.L Gore & Associates Inc 27 136 .Graphite Metallizing Corp 72 106 .Wirestone/Nvidia 130 .Helical Products Company, Inc 37 141 .Intech Corporation 77 Global manufacturer of process control 137 .Kepner Products .72 and factory automation solutions 109 .Lee Company .10 111 .Lubriplate Lubricants Co .11 142 .Magnetic Brakes System .79 144 .Magnetic Component Engineering, Inc .80 143 .Master Bond, Inc .79 RS# 140 128 .Simrit Group 35 While every effort has been made to ensure the accuracy of this index, the publisher cannot be held responsible for any errors or omissions ader Service Access our Re ickly find and Website to qu ation on the rm fo in request rvices found se products and ACHINE DESIGN M in the pages of c design.com/rs w w w.machine BUSINESS INDEX 3D Systems Corp 30 Agilent Technologies Inc 26 Agilent Technologies Inc 58 Arktos Developments Ltd 66 Autodesk Inc 66 AutomationDirect 6, 30 B&R Industrial Automation Balluff Barron Lighting Group Beswick Engineering Co Inc Bimba Manufacturing 30 30 25 71 71 Central Piedmont Community College 38 Clippard Instrument Laboratory Inc 72 DoE’s Pacific Northwest National Laboratory 26, 27 Danfoss Industrial Automation 71 Dept of Energy 27 Dept of Labor 38 Dordan Manufacturing 20 Eastern Michigan University .8 Energist Group 62 Entrepreneur 30 Fabrico 25 Festo 72 FIRST Robotics Competition 34 GreenBiz Group 48 Groschopp IDI Composites International 42 IDI Composites International ITW Formex 25 Industrial Equipment Div., Baldwin-Lima-Hamilton Corp 28 Infinite Z Inc 63 Packaging Machinery Manufacturers Institute 30 Parker Hannifin, Fluid Control Div 73 Pepperl+Fuchs 33 Peter Paul Electronics Peter Paul Electronics Co Inc 71 PolyPlane.com 64 Princeton University Plasma Physics Laboratory 28 Rittal Corp 18 Sandia National Laboratory 24 Sensable 67 Service Machine Co Inc 27 Siemens 38 Siemens PLM Software 62 Simrit 27 Social Science Research Council Society of Manufacturing Engineers 38 Steinmeyer .6 Sterling Instruments 30 Stock Drive Products/ Sterling Instrument Sustainable Packaging Coalition 22 Tecplot Inc 68 TerraCycle Inc 20 TÜV SÜD America Inc 26 U S Green Building Council 48 Underwriters Laboratories 48 Valmont West Coast Engineering 66 Walmart Web Industries Westinghouse Electric Corp Whole Foods Market Day 20 Wittenstein 20 30 28 16 York University LXI Consortium 59 Lee Co., The 73 MTI Systems Inc 27 Manufacturing Institute 38 MICROMO .6 Millennium Jet Inc 28 NASA 111 National Association for PET Container Resources 20 Ohio University Z Corp 30 This index includes all significant references to parent companies mentioned in feature editorial material within this issue of MACHINE DESIGN It doesn’t cite companies listed solely in the Products and Lit Section Page numbers listed refer to the pages where the articles begin MARCH 8, 2012 RS# 141 MACHINE DESIGN.com 77 CLASSIFIEDS BUSINESS STAFF PRODUCTS/SERVICES THE ORIGINAL INSTANT THUMBSCREW In most cases, advertisements contained in MACHINE DESIGN employment section indicate that the companies are equal opportunity employers The Federal Civil Rights Act of 1964, and other laws, prohibit discrimination in employment based on race, color, religion, national origin, sex, or for any reason other than lack of professional qualification for the position being offered It should be noted that employment advertisements in MACHINE DESIGN are published for the readers convenience and, in no way, to the best of our knowledge, promote unlawful discrimination To Advertise in MACHINE DESIGN’S Classifieds Section, Bill Baumann, Vice-President/Market Leader Dennis Jensen, Associate Publisher Larry Berardinis, Business Development Director Virginia Goulding, Online Sales & Marketing Manager Julie Ritchie, Research Manager Jane Maloney Cooper, Marketing Manager Debbie Brady, Audience Development Manager Carey Sweeten, Group Production Manager, 913-967-1823 Courtney Denison, Production Coordinator, 913-967-1738 Denise Donaldson, Administrative Manager/Sales Support 216-931-9403 Corporate Officers Bob MacArthur, Senior Vice President Nicola Allais, CFO Advertising Sales Mike Hancock International Sales Director, mike.hancock@penton.com Ph: 011-44-1372-824284, Fax: 011-44-1372-824322 AZ, CA, ID, OR, NV, UT, WA, British Columbia: Jim Theriault, jim.theriault@penton.com, Ph: 408-857-0322, Fax: 925-736-8705 AL, AR, FL, GA, KS, LA, NM, MS, MO, OK, TX: Franny Singleton, franny.singleton@penton.com, Ph: 678-947-8563, Fax: 913-514-6884 CO, IA, S IN, KY, MN, MT, NE, ND, S OH, SD, TN, WI, WV, WY: Dennis Jensen, dennis.jensen@penton.com, Ph: 952-368-0018, Fax: 913-514-6627 IL: Melinda Hurley, melinda.hurley@penton.com, Ph: 847-784-9825, Fax: 847-784-9826 N IN, N OH, MI, NY, PA, Ontario: Bill Rodman, bill.rodman@penton.com, Ph: 216-931-9636, Fax: 216-621-8469 DE, DC, MD, NJ, NC, SC, VA: Brandy Bissell, brandy.bissell@penton.com, Ph: 919-773-1875, Fax: 913-514-6357 contact Larry Berardinis at (216) 931-9393, CT, ME, NH, MA, RI, VT, Quebec: Liz Stott, liz.stott@penton.com, Ph: 857-636-9737, Fax: 913-514-6914 larry.berardinis@penton.com 78 MACHINE DESIGN.com United Kingdom, Scandinavia, France, Spain, Portugal : Stuart Payne, stuart.payne@husonmedia.com Ph: +44 (0)1932 564999 Fax: +44 (0)1932 564998 Belgium, Netherlands, Luxemburg: Rodric Leerling, rodric.leerling@husonmedia com, Ph:011-31-229-841882 , Mobile 31683-232625, Germany, Austria, and Switzerland: Christian Hoelscher, christian.hoelscher@husonmedia.com Ph: 011-49-89-95002778, Fax: 011-49-89-95002779 Italy: Cesare Casiraghi, Casiraghi Pubblicitá Estera, Ph: 011-390-31-261407, Fax: 011-390-31-261380 Tokyo, Japan: Yoshinori Ikeda, Pacific Business, Inc., Ph: 011-81-03-3661-6138, Fax: 011-81-03-3661-6139 1300 E 9th St., Cleveland, OH 44114-1503, Ph: 216-696-7000 — Fax: 216-696-0177 MARCH 8, 2012 BACKTALK NASA teaches kids math “Sector 33” is a free app from NASA that helps kids understand math by solving simulated air-traffic-control problems The app’s developers also hope it will inspire students to pursue careers in aeronautics “Using an interactive game to spark their interest, while at the same time teaching them fundamental math concepts, is a perfect way to help cultivate the next generation of engineers and technologists,” said Leland Melvin, NASA’s associate administrator for education Players work a sector of airspace spanning Nevada and California, adjusting each airplane’s path and speed to move as fast as possible while maintaining separation and avoiding thunderstorms Every minute a plane a plane is delayed, that delay is passed on to all the planes flying behind it Although time is of the essence, to assure safety, the planes must never violate minimum spacing requirements Go to Apple’s app store to download the app: at http://itunes.apple.com/us/app/sector-33/ id486953105?ls=1&mt=8 MD CT NEW DU PRO Flexibilized Epoxy Adhesive One Part Supreme 10HTFL • Serviceable from 4K to 350ºF • High shear and peel strength • Resistant to impact, thermal and mechanical shock 154 Hobart Street, Hackensack, NJ 07601 USA +1.201.343.8983 • main@masterbond.com www.masterbond.com RS# 142 MARCH 8, 2012 RS# 143 MACHINE DESIGN.com 79 [...]... gears, MACHINE DESIGN.com couplings, and vibration mounts The 1,520-page catalog includes an 87-page technical reference section Request or download a copy at www sdp-si.com/D810/D810cat.htm Ball-screw blog Steinmeyer has added a new blog to its Web site, www.steinmeyer.com Content includes product design, engineering calculations, and commercial issues Industry experts are available to offer advice on machine- tool,... learn how to weld or run a CNC machine I’d hire them Jon Rogers I had a couple of other letters from liberal arts degree holders who took what I said the wrong way Regardless of what your degree happens to be in, I’d say learning a skill at a community college, if necessary, is a good way to get a foot in the door — Leland Teschler ® RS# 113 14 MACHINE DESIGN.com MARCH 8, 2012 Real parts Really fast A... design.com/rs gun stroke equals a cubic ww w .machine centimeter), a value that can range from 0.3 to 4 That setting can then be used for anywhere from 14 days to 18 months A chemical reaction in the grease builds up pressure, which moves the grease through the various pipes and hoses The unit operates in temperatures from 10 to 50°C RS# 401 16 MACHINE DESIGN.com MARCH 8, 2012 For information on another case-hardened... available in configurations that meet NEMA-4X specifications RS# 402 18 MACHINE DESIGN.com MARCH 8, 2012 Door chamfered all around edge, which simplifies cleaning Continuous silicone seal and gaskets fit without adhesives They can be replaced without using special tools For more information on enclosures, scan this code or go to: http://machinedesign.com/article/ nanotechnology-keeps-enclosuresclean-0524... gore.com/electronics Service Machine Co Inc., Loves Park, Ill., has selected Costimator cost-estimating software from MTI Systems Inc., West Springfield, Mass., to speed up cost estimating and enhance the accuracy of their quotations Service Machine Co, Inc manufactures a variety of production parts ranging from small lot and high-volume parts to prototyping MTI Systems is a software provider MD MARCH 8, 2012 RS# 121... EDITORIAL PRODUCTION Denise Greco, Editorial Production Manager Randall L Rubenking, Art Director More Than 75 Years - The Original Paper Tube Company 1033 S Noel Ave., Wheeling, IL 60090 10 MACHINE DESIGN.com MARCH 8, 2012 RS# 110 1300 E 9th St Cleveland, OH 44114-1503 Lubriplate ® The Essential OEM Lubricant Range WHEN IT COMES TO SPECIFYING LUBRICANTS FOR ORIGINAL EQUIPMENT Lubriplate ® CAN MEET YOUR... University with a Liberal Arts degree in music and Spanish linguistics My first job out of school was cutting steel and drilling holes in a machine shop owned by my friend’s dad Thanks to that experience, I now work for an engineering firm in Tennessee I also own a machine shop that supplies prototypes to our company It’s a whirlwind, but it’s allowed me to provide for a growing family and let my wife... available for reprocessing Moreover, lots of postconsumer plastics collected for recycling get sold Continued on page 22 The assortment shows examples of blister packs that Dordan manufactures MARCH 8, 2012 The machines are converting PC PET film via thermoforming into clamshells or blister packs RESOURCES: Dordan Manufacturing Co Inc., www.dordan.com, www.recyclablepackaging.org TerraCycle Inc., www.terracycle.net... sells the materials to an intermediate plastics or paper reprocessor It is often privately owned and employs more-sophisticated sorting techniques based on the requirements of the end market MARCH 8, 2012 MACHINE DESIGN.com 21 REPORTER’S NOTEBOOK The film has been formed into clamshells Continued from page 20 to China where the cost to manually sort it is less than the cost of manually sorting it in... Airpot demonstrator Or call us at 800- 848-7681 Airpot Corp ® Motion Controlled Problem Solved ®Airpot is a registered trademark of Airpot Corporation, 35 Lois St., Norwalk, CT 06851 24 MACHINE DESIGN.com MARCH 8, 2012 RS# 118 Airpot.com Emergency lighting relies on durable insulation Resources: By its very nature, emergency and exit lighting Barron Lighting Group, Formex material for lighting insulation