Analytical computer-aided machining system and method

Details Analytical computer-aided machining system and method Analytical computer-aided machining system and method

1990-01-19

1991-07-16

Smith, Jerry

Boots, shoes, and leggings

36447418, G06F 1546

Patent

active

050330055

ABSTRACT:
A computer-aided machining system is described which implements a method of geometrically-intersecting offset surfaces and drive surface to automatically generate tool control paths. Preferably, the machine tool is controlled by characterizing the shape of the part to be milled using the mathematical representation, and from that mathematical representation calculating an approximate offset surface for the surface to be milled. The approximate offset surface is compared with the drive surface for the machine tool to define an approximate tool control point curve. The actual tool control point curve is then calculated by comparing the approximate tool control point curve with the mathematical representation of the surface of the part. The actual tool control point curve can then be supplied to a machine tool to enable it to mill the part surface.

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Foley, James D., et al., Fundamentals of Interactive Computer Graphics, Addison-Wesley Publishing Co., Reading, Mass., Chap. 13, "Representation of 3D Shapes," pp. 505-537.
Childs, James J., Numerical Control Part Programming, 3d Printing, Industrial Press Inc., New York, Chaps. 8 & 9, "Computer-Assisted Part Programming, the APT System" and "Geometry, Auxiliary, and Post Process Statements as Used in APT," pp. 188-244.

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