Transcription of THERMOFORMING DESIGN GUIDELINES - Multifab …
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THERMOFORMING DESIGN GUIDELINES Multifab Manufacturing 509-924-6631 2 Multifab Corporation 3808 North Sullivan Road, Building 6 Spokane, Washington, 99216 1-509-924-6631 THERMOFORMING DESIGN GUIDELINES (Revision 3-12-18) Multifab Inc. is an industry leader in the field of vacuum and pressure formed plastics for the Aerospace, Medical and other commercial industrial markets. We have created this DESIGN Guide as an engineering aid for our many good clients as well as our potential new partners in the effort to best DESIGN for process manufacturability. Please note that these are suggestions based upon our 25+ years in the plastics industry and are meant to direct as a baseline.
Generally speaking amorphous materials like polystyrene, ABS, polycarbonate, PVC, and PVC/Acrylic blends are easier to vacuum form as they do not have such a critical forming temperature. When heat is applied amorphous materials become soft and plia-ble so when it reaches this state it is known as it Glass Transition Temperature (Tg). If
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