Polycrystalline diamond tool and method for producing the polycr

Details Polycrystalline diamond tool and method for producing the polycr Polycrystalline diamond tool and method for producing the polycr

1991-04-01

1992-08-18

Bishop, Steven C.

Cutters, for shaping

Comprising cutting edge bonded to tool shank

51295, 1754202, 407119, 408145, B23B 2720, B23B 2718

Patent

active

051393727

ABSTRACT:
Polycrystalline diamond has non-uniform quality along the direction of thickness. The diamond near the rake surface is of better quality. The diamond near the fixation surface is of worse quality. The worse diamond near the fixation surface alleviates a strong stress or absorbs an external shock. Owing to the worse diamond near the fixation surface, the diamond tool excels in chip resistance or toughness. The better diamond near the rake surface heightens abrasion resistance, adhesion resistance and strength.

REFERENCES:
patent: 4311490 (1982-01-01), Bovenkerk et al.
patent: 4604106 (1986-08-01), Hall et al.

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