Transcription of Chapter 5 Product and Mold Design
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Chapter 5 Product and Mold Design
55 Product andMold DesignProduct DesignMold DesignChapter 55 Product and mold Design56 Although component Design in thermoplas-tics is complex, following a few fundamentalprinciples will help you minimize problemsduring molding and in part performance. Ofcourse, the guidelines given here are on the particular requirements ofthe part, it may not always be possible tofollow all of our suggestions. But theseguidelines, in furthering your understand-ing of the behavior of thermoplastics, canhelp you effectively resolve some of themore common Design Wall ThicknessFor parts made from most thermoplastics,nominal wall thickness should not mm. Walls thicker than mm willresult in increased cycle times (due to thelonger time required for cooling), willincrease the likelihood of voids and signifi-cantly decrease the physical properties ofthe part.
Release Draft 0 .2 .4 .6 .8 1.0 1.2 1.4 R/T Stress-Concentration Factor 3.02.5 2.0 1.5 1.0 P R T. 5 Product and Mold Design 58 Ribs and Gussets Figure 29 – Example of Rib Design When designing ribs and gussets, it is important to follow the proportional thick- ... 5 …
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