CAD/CAM in the French automobile industry

Pierre E. Bezier

doi:10.1117/12.19725

1 August 1990 CAD/CAM in the French automobile industry

Pierre E. Bezier

Proceedings Volume 1251, Curves and Surfaces in Computer Vision and Graphics; (1990) https://doi.org/10.1117/12.19725
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

The French aircraft industry began paying attention to CAD/CAM before 1960, and the car builders soon followed suit, but their problem was somewhat different It can be said that, from the start, the aim was to obtain a complete description of the shape of the heet-metal parts , i.e. car body elements, and to use it to carry information throughout the entire process, fromstyling to inspection of stamped and assembled parts One of the first and foremost conditions was to adopt a mathemtical solution that could be easily understood and operated by designers, draughtsmen and machine-tool operators Consequently, the system should not be used to translate an already existing set of' drawings, but to directly express with figures and numbers the shape previously defined, be it scantly, by small or large scale sketches and 3D mockups Now, numerical data are carried from R.& D. division to those of Production Engineering and tool shops; it is compulsory, too, that the system be compatible with those of subcontractors and suppliers To get full advanta9e of CAD/CAM, it is often necessary to bring important and radical change in the functioning of R..& D. and Production of' the company , and sometimes to other divisions

Citation Download Citation

Pierre E. Bezier "CAD/CAM in the French automobile industry", Proc. SPIE 1251, Curves and Surfaces in Computer Vision and Graphics, (1 August 1990); https://doi.org/10.1117/12.19725

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