Cutting tool for plastic materials

Details Cutting tool for plastic materials Cutting tool for plastic materials

1989-08-22

1992-08-25

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

407 54, B23B 5102

Patent

active

051413698

ABSTRACT:
A cutting tool such as a body drill has a cylindrical shank portion and a body section connected to the shank portion. The twist section terminates at a cutting end. A pair of flutes are formed in the body section, defining a land therebetween. The land includes a narrow margin having a width between 0.015 and 0.025 inches. The land also has a body clearance of a diameter less than that of the margins. The flutes terminate at flute faces at the cutting end. The flute faces are disposed parallel to each other at a zero degree rake angle. The narrow margin aspect of the invention could also be applied to a counterbore or spotface.

REFERENCES:
patent: 2009168 (1935-07-01), Dettmer
Drilling Technology, Krar and Oswald, 1977, pp. 32,33 and 45.
Machine Tool Operation, Burghardt, Axelrod and Anderson, 1959, p. 181.
Morse Catalog No. 75, Set No. 30, p. 76, 1943.

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