Numerically controlled milling with parabolic profile tools for

Details Numerically controlled milling with parabolic profile tools for Numerically controlled milling with parabolic profile tools for

1978-07-21

1979-12-18

Bilinsky, Z. R.

Cutters, for shaping

Rotary cutting tool

Having peripherally spaced teeth

B23C 504

Patent

active

041792289

ABSTRACT:
An arrangement for machining surfaces with a numerically controlled tool in which the tool is provided with a parabolic profile to obtain a substantially smooth surface finish. The workpiece to be machined is moved relative to the cutting tool in substantially a plane of the workpiece. After milling a contour along that plane, the workpiece or the tool is incremented to an adjacent parallel plane for the purpose of milling another contour on the workpiece. The slope of the surface element on the workpiece between the adjacent planes is computed, and the cutting tool is oriented so that the portion of the tool in contact with the workpiece along that surface element, possesses the computed slope. The cutting tool may be formed with cutting edges having straight-line segments interconnected and directed substantially along a parabolic surface. The slopes on the cutting edges of the tool vary in magnitude from substantially zero to infinity.

REFERENCES:
patent: 938434 (1909-10-01), Pierpont
patent: 3042994 (1962-07-01), Ruggeberg

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