METHOD FOR MANUFACTURE OF DEFORMING MEMBER OF BROACH Russian patent published in 1996 - IPC

Abstract SU 1651444 A1

FIELD: mechanical engineering; particular, metal broaching. SUBSTANCE: applied to working surfaces of broach - roll-threading lip, reverse cone and cylindrical strips is regular microrelief under conditions that it is crossed by grooves of connection lines of roll-threading lip and reverse cone with cylindrical strip. Then, wear-resistant coating is applied to them. Wear-resistant coating thickness is less than the depth of grooves formed by microrelief. This allows lubricant to be preserved on the tool surface that provides for friction of complete lubrication. EFFECT: cut down costs of broach manufacture due to use of tool steels free of tungsten for manufacturing broaches operating with lubricant. 4 dwg

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SU 1 651 444 A1

Authors

Kuznetsov A.M.

Kuznetsov V.A.

Lobanov A.S.

Gavrilov A.G.

Dates

1996-08-27—Published

1987-02-05—Filed