Method for generating offset surface data

Details Method for generating offset surface data Method for generating offset surface data

1987-10-19

1989-09-12

Pellinen, A. D.

Boots, shoes, and leggings

36447431, 364720, G06F 738

Patent

active

048666319

ABSTRACT:
A method for generating offset surface data representing a tool path of a tool traversing patches which are mutually adjoining at boundary lines where there is no continuity of the osculating planes. The offset surface data is interpolated for the parts of the surface at which the offset surface data become mutually discontinuous at the boundary lines or for a patch having a sharp corner. The present invention is applicable to a NC (Numerical Control) machining center which can control a machine tool so as to prevent excessive milling by the tool at the discontinuous parts of the offset surface.

REFERENCES:
patent: 3524049 (1970-08-01), Gotz et al.
patent: 3634667 (1972-01-01), Okamato et al.
patent: 3809868 (1974-05-01), Villalobos et al.
patent: 3882304 (1975-05-01), Walters
patent: 3917932 (1975-11-01), Saita et al.
patent: 4031369 (1977-06-01), Heaman et al.
patent: 4355223 (1982-10-01), Inoue et al.
patent: 4423481 (1983-12-01), Reid-Green et al.
patent: 4445182 (1984-04-01), Morita et al.

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