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Composites Manufacturing - Materials, Product, and Process Engineering Part 4 ppt

Composites Manufacturing - Materials, Product, and Process Engineering Part 1 pptx

Composites Manufacturing - Materials, Product, and Process Engineering Part 1 pptx

... Metals 1. 1.2 Plastics 1. 1.3 Ceramics 1. 1.4 Composites 1. 2 What Are Composites? 1. 3 Functions of Fibers and Matrix 1. 4 Special Features of Composites 1. 5 Drawbacks of Composites 1. 6 Composites Processing 1. 7 ... Manufacturing Processes 11 .6 .1 Hand Lay-up Technique for Aerospace Parts 11 .6.2 Filament Winding for Consumer Goods 11 .6.3 Compression Molded SMC Parts for Automotive Applications 11 .7 Learning Curve 11 .8 ... Estimation 11 .1 Introduction 11 .2 The Need for Cost Estimating 11 .3 Cost Estimating Requirements 11 .4 Types of Cost 11 .4 .1 Nonrecurring (Fixed) Costs 11 .4.2 Recurring (Variable) Costs 11 .5 Cost...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 2 pps

Composites Manufacturing - Materials, Product, and Process Engineering Part 2 pps

... dimen-sional stability.8. Net-shape or near-net-shape parts can be produced with compositematerials. This feature eliminates several machining operations and thus reduces process cycle time and ... dimen-sional stability.8. Net-shape or near-net-shape parts can be produced with compositematerials. This feature eliminates several machining operations and thus reduces process cycle time and ... resistance. Iron and alu-minum corrode in the presence of water and air and require specialcoatings and alloying. Because the outer surface of composites isformed by plastics, corrosion and chemical...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 3 pps

Composites Manufacturing - Materials, Product, and Process Engineering Part 3 pps

... application, design and manufacturing consider-ations begin. 3. 2 The Need for Material Selection With the technological advancements, new material systems and processesare being developed and are growing ... thermoset composites is a complicated process, requiring adhesives and careful surface preparation. Thermoplastic compos-ites typically require higher forming temperatures and pressures than com-parable ... select-ing various types of polyisocyanate and polyhydroxyl ingredients. Polyure-thane offers excellent wear, tear, and chemical resistance, good toughness, and high resilience. 2 .3. 2 Thermoplastic...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 4 ppt

Composites Manufacturing - Materials, Product, and Process Engineering Part 4 ppt

... choice. Similarly,for a manufacturing process, one specific type of material system may bemore appropriate than the other. For a manufacturing process, if the engineerselects a particular raw material, ... literature,suppliers’ brochures, and handbooks. In the published literature, single-valuedata is given on the property without any standard deviation. During the finaldesign process, more detailed information ... Preform manufacturers are coming up with new braiding technol-ogies and preform materials for increased manufacturing feasibility. Honey-comb and core suppliers are introducing new core materials...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 5 docx

Composites Manufacturing - Materials, Product, and Process Engineering Part 5 docx

... braiding would impart distinct stiffness,damping, and mass characteristics due to different fiber and resin distribu-tions and fiber volume fractions. Composites manufacturing processes createdistinct ... metals, standard sizes of blanks, rods, and sheets are machined and thenwelded or fastened to obtain the final part. In composites, machining ofstandard-sized sheets or blanks is not common and is ... facilitates obtaining near-net-shape parts. Composites do not have high pressure and temperature requirements for part processing as compared to the processing of metal parts using extrusion,roll...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 6 pot

Composites Manufacturing - Materials, Product, and Process Engineering Part 6 pot

... â 2002 by CRC Press LLC FIGURE 6. 6 Tooling for carbon fiber tennis racquet. (Courtesy of Radius Engineering, Inc.) ...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 7 potx

Composites Manufacturing - Materials, Product, and Process Engineering Part 7 potx

... Making of the Part The processing steps used in the spray-up process are very similar to thosein the wet lay-up process. In this process, the release agent is first appliedto the mold and then ... in this process is identical to that used in the wet lay-up process. Male and female molds are used, depending on the application.Tubs and showers utilize male molds, whereas boat hulls and decks ... by hand whenever required.The weight fraction of reinforcement in this process is typically 20 to 40%of the total weight of the part. The most common resin system used for the spray-up process...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 8 doc

Composites Manufacturing - Materials, Product, and Process Engineering Part 8 doc

... and then forming it under heat and pressure. Once a shape is formed,the preform maintains its shape. In conformal mats, fabrics or choppedstrand mats are placed on the outer layer and spun-bonded ... tothe desired size and formed under heat and pressure to the shape of themold. In this process, scraps are produced to get the final shape preformbecause complicated three-dimensional shapes ... rapid heat-up to prevent temperatureovershoot. Water cooling is used to obtain rapid cool-down at the end of thehigh-temperature hold. The molds operate in a shuttle press with an integralprocess...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 10 pps

Composites Manufacturing - Materials, Product, and Process Engineering Part 10 pps

... pre-cut,pre-weighed pieces of sheet composite materials, called blanks, for processing.TABLE 6.6 Part Cycle Time for Various Manufacturing Processes Manufacturing Process Part Cycle Time(s)Compression molding ... manufacturing processes. 7.2 The Importance of Models in Composites Manufacturing A process model is very helpful in analyzing a manufacturing process, providing a tool for the production of high-quality ... high-quality parts at low cost. It caneliminate several processing problems before a manufacturing process begins or before part design is finalized. It estimates optimum process parameters for a manufacturing...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 11 pps

Composites Manufacturing - Materials, Product, and Process Engineering Part 11 pps

... the part. Similarly, for thermoplastic composites, uniform cool-ing should take place to avoid residual stress build-up.ã The nished part should have minimum residual stress to mini-mize part ... debonding 6,7 ã Release of volatiles and void growth 8 7.4 Process Models for Selected Thermosets and Thermoplastics Processing For composites processing, various analytical models have ... applying heat and pressure are different in each manufacturing process. In the autoclave process, heat is supplied with the help of hot airor hot nitrogen gas inside the autoclave, and pressure...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 12 doc

Composites Manufacturing - Materials, Product, and Process Engineering Part 12 doc

... figures that the calculated and measured temperaturesFIGURE 7.25Theoretical and experimental plots of temperature as a function of time at three positions insidea 64-ply composite. The temperature ... cycle is shown in Figure 7.29. The cure and bleederpressures were constant at 586 kPa (85 psi) and 101 kPa (14.7 psi), respectively. (Reprinted fromLoos, A.C. and Springer, G.S., J. Composite Mater., ... © 2002 by CRC Press LLCThe temperature distributions and resin flows were determined by modelsusing the same cure temperature and pressures as employed during the test.The results of the...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 13 ppt

Composites Manufacturing - Materials, Product, and Process Engineering Part 13 ppt

... McGraw-Hill, New York, 1974, 336–337.26. Dara, P.H. and Loos, A.C., Thermoplastic Matrix Composite Processing Model,Center for Composite Materials and Structures, Report CCMS-8 5-1 0, VPI-E-8 5- 21, ... labor-intensive process; a special proce-dure is followed to make the joint.3. Joints add manufacturing time and cost to the structure.In an ideal product, there is only one part. Fiber-reinforced ... 100 parts. Heloval 43-meter luxuryyacht from CMN Shipyards is comprised of about 9000 metallic parts forhull and superstructure, and over 5000 different types of parts for outfitting.These parts...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 14 ppsx

Composites Manufacturing - Materials, Product, and Process Engineering Part 14 ppsx

... 2 are the stiffnesses and thicknesses of the adherend materials 1 and 2, respectively).Mazumdar and Mallick 1 conducted a series of tests on SMC-SMC and SRIM-SRIM joints to determine ... 2 are the stiffnesses and thicknesses of the adherend materials 1 and 2, respectively).Mazumdar and Mallick 1 conducted a series of tests on SMC-SMC and SRIM-SRIM joints to determine ... adhesive fora sandwich structure. In honeycomb-cored sandwich structures, the bondedsurface area between the core and skin material is much less than the surfacearea of the skin and therefore...
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Composites Manufacturing - Materials, Product, and Process Engineering Part 15 doc

Composites Manufacturing - Materials, Product, and Process Engineering Part 15 doc

... boron/epoxy, and hybrids of graphite/epoxy and FIGURE 10.5 Schematic of waterjet cutting equipment. (Adapted from Hurlburt, G.H. and Cheung, J.B.,Waterjet Cutting of Advanced Composite Materials, ... Advanced Composite Materials, SME Technical Paper No. MR7 7-2 25, So-ciety of Manufacturing Engineers, 1997.)Water inWater in30 GPM pump4-way valveLarge pistonSmall pistonIntensifierAccumulatorNozzleWater ... Taiwan, Korea,India, China, and Mexico, where the labor cost is low, are competing withwell-established nations by acquiring technologies. Today, tooling and com-posite products such as golf...
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Materials Selection and Design (2010) Part 4 ppt

Materials Selection and Design (2010) Part 4 ppt

... ASME 24. T.A. Hunter, Design Errors and Their Consequences, Paper 89-WA/DE- 14, ASME 25. C.O. Smith and T.F. Talbot, Product Design and Warnings, Paper 91-WA/DE-7, ASME 26. C.O. Smith and J.F. ... quickly and refined later on. The vast majority of objects designed in practice are assemblies of interacting parts. A major area of design errors occurs in the interfaces and fit of these parts. ... striker, and other parts including the door frame and door. One of the most critical sets of data is the contact surface shapes. Several parts have intermittent contact and slide against other parts...
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