Cutters – for shaping – Including holder having seat for inserted tool – With separate means to fasten tool to holder
Patent
1980-06-23
1985-11-12
Vlachos, Leonidas
Cutters, for shaping
Including holder having seat for inserted tool
With separate means to fasten tool to holder
407113, 407119, B26D 100
Patent
active
045524912
ABSTRACT:
A ceramic insert for a tool holder is in the shape of a tapered cylinder wherein the diameter increases outwardly along the insert length, from a first end to a second end. The second or upper end of the insert has a bevel around its circumference; the intersection of the bevel and tapered sidewall of the cylinder provide a cutting edge which has a negative rake and relief angle which are desirably constant around the insert. Thus the insert may be mounted on a neutral plane in a tool holder and a tool will cut equally well in any direction along a 180.degree. arc. Various engagement and clamping means are used to hold the insert in place in the tool holder.
REFERENCES:
patent: 1838520 (1931-12-01), Archer
patent: 2289344 (1942-07-01), Cedarleaf
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patent: 2630725 (1953-03-01), Black
patent: 3464098 (1969-09-01), Moore et al.
patent: 3731356 (1973-05-01), Gowanlock
patent: 3871092 (1975-03-01), Anschutz et al.
patent: 4181049 (1980-01-01), Borisenko et al.
"Ceramic Materials for Single-Point Turning Tools"; King et al., Metals Handbook Vol. III, 3rd ed. A.S.M (1963), pp. 322-324.
Greenleaf Corp. Catalog #579th; May 1979.
Nessler C. G.
United Technologies Corporation
Vlachos Leonidas
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