TANGENTIAL TURNING CUTTING TOOL Russian patent published in 2003 - IPC

Abstract RU 2212535 C2

FIELD: mining, more specifically, cutting tools applicable in tunneling machines. SUBSTANCE: turning cutting tool has body, hard-alloy insert, supporting-turning part and shank. Hard-alloy insert is of two-stage type. One of stages, particularly, working stage, has smooth surface in form of extended spheroid with ratio of semiaxes equaling 1.8-2.2, and the other stage-landing stage, presents truncated cone with taper angle of 0<α≤3 deg. EFFECT: higher operate reliability of cutting tool. 1 dwg

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RU 2 212 535 C2

Authors

Dvornikov L.T.

Prokushenko S.I.

Krestovozdvizhenskij P.D.

Polyntsev N.A.

Dates

2003-09-20—Published

2001-12-17—Filed