Method of blasting cutting tool inserts

Details Method of blasting cutting tool inserts Method of blasting cutting tool inserts

1993-06-16

2000-10-17

Echols, P. W.

Abrading

Abrading process

Utilizing fluent abradant

451 40, 428409, 428547, B24C 100

Patent

active

061322938

ABSTRACT:
A method of removing the binder phase from the surface of a hard material body consisting of hard constituents in a binder phase based on cobalt and/or nickel and with a binder phase enriched surface zone is disclosed. By carrying out a blasting process using particles with a size of 400-1500 mesh, a favorable combination of even removal of the cobalt layer, essentially no damage to the carbide grains and reasonable blasting time is obtained.

REFERENCES:
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patent: 3382159 (1968-05-01), Reed
patent: 3528861 (1970-09-01), Elam et al.
patent: 4272612 (1981-06-01), Oliver
patent: 4282289 (1981-08-01), Kullander et al.
patent: 4610931 (1986-09-01), Nemeth et al.
patent: 4911989 (1990-03-01), Minoru et al.
Patent Abstracts of Japan, vol. 14, No. 582, C-792, abstract of JP, A, 2-254144 (Nippon Steel Corp), Oct. 12, 1990.
Patent Abstracts of Japan, vol. 13, NR. 399, C 632, abstract of JP 1-142074, published Jun. 06, 1989.
Patent Abstracts of Japan, vol. 16, NR. 194, C 938, abstract of JP 4-28854, published Jan. 31, 1992.

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