Metal tools and implements – making – Blank or process – Drill
Patent
1990-05-24
1991-07-16
Parker, Roscoe V.
Metal tools and implements, making
Blank or process
Drill
76DIG11, 76DIG12, 407118, 407119, B21K 504
Patent
active
050314840
ABSTRACT:
An end mill forms at least a pair of spiral grooves or flutes in the mill side walls. Each groove includes polycrystalline diamond formed along a leading edge of each flute. A process for forming the diamond edged on the PCD material bonded within the flute.
REFERENCES:
patent: 1887373 (1932-11-01), Emmons et al.
patent: 1887374 (1932-11-01), Emmons et al.
patent: 1977845 (1934-10-01), Emmons
patent: 4527643 (1985-07-01), Horton et al.
patent: 4627503 (1986-12-01), Horton
patent: 4762445 (1988-08-01), Bunting et al.
Parker Roscoe V.
Smith International Inc.
Upton Robert G.
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