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Practical Applications of C. A. D. to Design and Manufacture of Automobile Bodies at PSA Peugeot - Citroen

1979; Linguagem: Inglês

10.4271/790720

2688-3627

Jean Hamon, G. Perroud, S. Parizot,

Advanced Numerical Analysis Techniques

This paper discusses the advantages and practical applications of computer aided design, applied to the design and manufacturing of the latest Peugeot-Citroen models, such as 305, CX, 604, VISA. Numerical definition of complex surfaces has helped the stylists considerably. Some internal structure elements can be automatically designed from the numerical external shape. This allows check of possible interference between mechanical elements and the internal structure. High feed rate numerical milling machines for soft materials allow easy machining of prototype dies, master models, and scale models for aerodynamic studies. Numerical design of parts is also used for the direct milling of stamping tools and the manufacturing of injection molds for plastic elements that take account automatically of the shrinkage.