Thermoforming - Improving Process Performance

This book describes the roll-fed thermoforming process, plastic materials, design of thermoformed products, thermoforming machines, trim presses, mold design, components of a complete mold system, mold layout and machine base design, mold cost estimating, knife-like trim dies, thermoforming offline punch and die trimming. Content: Front Matter • Abbreviations • Preface • Table of Contents 1. The Roll-Fed Thermoforming Process 2. Properties of Plastic Materials 3. Design of Thermoformed Products 4. Thermoforming Machines 5. Trim Presses 6. Mold Design 7. Mold System Components 8. Mold Layout and Mold Base Design 9. Mold Cost Estimating 10. Knife-Like Trim Dies 11. Off-Line Punch-and-Die Trimming Index Thermoforming is a processing technique involving air pressure applied to heated plastic, and combines the earlier terminology of vacuum-formed and pressure-formed operations. A specialist in thermoforming, mechanical engineer Rosen describes the roll-fed process, properties of plastic materials, designing products, thermoforming machines, trim presses, knife-like trim dies, and off-line punch-and-die trimming. Chapters on molds cover mold design, system components, layout and base design, and cost estimating. Annotation copyrighted by Book News, Inc., Portland, OR A must read for practitioners in the plastics industry, including upper management, who strive to achieve a sound working knowledge of the fundamentals. The second book in the injection molding series, this one-of-a-kind resource addresses the basics and the fine points of plastics materials and product design phases of the thermoplastic injection molding process. The second book in the injection molding series addresses the basics and the fine points of plastic materials and product design phases of the thermoplastic injection molding process. Complex technical matter is presented in clear, sequential narrative bites. In 1868, John Wesley Hyatt developed the plastic material called celluloid and entered it in a contest created by a billiard ball manufacturer (celluloid was actually invented in 1851 by Alexander Parkes, but Hyatt perfected it). Thermoforming is a term of recent origin, perhaps coming into common use in the early 1980s.