Process for the manufacture of a drill head provided with hard,

Details Process for the manufacture of a drill head provided with hard, Process for the manufacture of a drill head provided with hard,

1978-03-17

1981-07-07

Simpson, Othell M.

Metal tools and implements, making

Blank or process

Drill

B21K 502

Patent

active

042767881

ABSTRACT:
The method of manufacturing such drill head by embedding the shank portions of hard, wear-resistant cutting elements in a mold containing metal powder, cold isostatically compacting the powder and shank portions to form the core part of the drill head, and hot isostatically compressing this core part to completely densify same.

REFERENCES:
patent: T970002 (1977-09-01), Kidder et al.
patent: 1045954 (1912-12-01), Decker
patent: 2152738 (1939-04-01), Jeffery
patent: 2299207 (1942-10-01), Bevillard
patent: 2578351 (1951-12-01), Griffiths
patent: 2582231 (1952-01-01), Catallo
patent: 2743495 (1956-05-01), Eklund
patent: 3563325 (1971-02-01), Miller
patent: 3885637 (1975-05-01), Veprintsev et al.
patent: 3997011 (1976-12-01), Staroba

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