229 Index A G accumulator system 84 air assist 94 air only 94 alignment of the mold halves 25 annular ring gate 127 artwork 33 automatic product removal 92 automotive products 133 available operating time 95 guaranteed cycle time 186 guaranteed delivery 186 guaranteed quality 185 guaranteed shrinkage 185 B back pressure 74 beryllium copper 61 Bills of Materials 178 bluing 14 H haze 43 heat expansion 28 heat sensitive 126 hobbing 35, 83 hooks 43 hot runner edge gates 139 hot runners 125 hot sprue 131 hubs 86 hydraulic pumps 84 C I D J deflection temperature 210, 211 delivery time 181 density 208, 209 draw stoning 30 dry cycle 67 jetting 43 job file 160 edge and fan gates 124 elongation at yield 212, 214 end product engravings 31 estimating 176 F family molds 114 fillers 45 filling volume 21 flexural modulus 213, 215 flexural strength 213, 215 flow leaders 38 flow marks 43 N negative engraving 33 number of cavities 102 O open gates 127 open nozzles 77 overhead 97, 170 P circular pinpoint 127 collapsible cores 15 compression molding confirmation of order 199, 204 core shift 121 corrosion prevention 50 crystallinity 60 E mold project timeline 162 mold set-up 194 molder molding properties 208 moving cavity 16 multi-level molds 142 multiple ejection strokes 91 injection mold injection speed 60, 74 insert molding 155 inside center gated parts 120 inventory 126 Izod 213, 215 L L/t ratio 119 labels 31 light-weighting 75, 197 locational clearance fits 41 lost-core molding parting line 13, 83 patents 187 path of least resistance 43 PET bottles 11, 63 Petri dish system 116 plant-wide machine hour cost 97 plasticizing capacity 73 positive engraving 33 post-mold-cooling 63 post-molding operations 17 potato chipping 38 prior art 187 product product designer production planning 165 pull ring 14 Q quotation 181, 199 M machine hour cost 97 mechanical properties 212 methods of alignment 25 mismatch 23 modular molds 136 mold cost per unit molded 99 mold designer mold maker mold manual 170, 193 mold open time 68 R record grooves 43 required clamp size 100 retainer plate 135 ribs 86 rim shapes 87 ripples 43 risk 173 robots 92 Rockwell hardness 213, 215 230 Index S safety considerations 141 screw design 74 self-degating 125 self-tapping screws 47 shot size 70 shut-off nozzles 78 side cores 15 sinks 39 spare parts 160 special fits 21 specific volume 208, 209 splay 43 splits 15 stack molds 142 stacking of products 22 stadium cups 11 Standard Geometrical Tolerancing standardization 54 submarine gating 125 surface finish 29 T tack height 22 temperature and time graph 126 tensile modulus 212, 214 tensile strength 212, 214 texturing 30 thermal conductivity 60, 210, 211 thermal expansion 210, 211 thermal properties 216 threads 15 41 tunnel gating 124 two-stage ejection 16 U undercuts 15 universal mold shoes 59, 113 unscrewing 15 V venting 66 voids 39 W water absorption 208, 209 witness lines 40