Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1976-07-26
1978-02-07
Vlachos, Leonidas
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
408199, 408211, 408239R, 407 11, 407 42, 407103, 407115, B23B 2903, B26D 100, B26D 112
Patent
active
040724387
ABSTRACT:
A single flute drill having a single, replaceable cutting insert which can drill from the solid, as well as being used for other single point machining operatings such as turning, internal and external diameter boring, contouring and facing. The insert is configured and related to the drill body so as to provide a single, radially extending cutting edge which has an effective neutral rake and negative lead. A specific insert structure is also provided for use in the drill. The disclosed insert comprises a solid body having parallel upper and lower faces each generally in the shape of an equilateral parallelogram and joined along their peripheral edges by side walls. One cutting edge is formed along the juncture of one side wall and the upper face and is inclined along its length toward the lower face. A second cutting edge is formed along the juncture of the lower face and a second side wall which intersects the first side wall at a corner. The second cutting edge is inclined along its length from the corner of the intersection toward the upper face.
REFERENCES:
patent: 3027786 (1962-04-01), Severson
patent: 3138043 (1964-06-01), Greuner
patent: 3158922 (1964-12-01), Reese
patent: 3422706 (1969-01-01), Lunsford
patent: 3791660 (1974-02-01), Bostley
patent: 3816018 (1974-06-01), Hlocky
Blackhurst Daniel G.
TRW Inc.
Vlachos Leonidas
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