TOOL FOR MACHINING HOLES Russian patent published in 1994 - IPC

Abstract RU 2013188 C1

FIELD: metal working. SUBSTANCE: tool has boring bar shaft carrying tapered mandrel fixed by conical pin. Tapered mandrel has in its middle part two conical surfaces and threaded sector positioned between them and carrying two retaining nuts engageable with rough and finishing sections being fixed by set nuts. EFFECT: enhanced accuracy of hole machining. 1 dwg

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RU 2 013 188 C1

Authors

Opalat P.G.

Timoshenko A.E.

Rumjantsev A.K.

Dates

1994-05-30—Published

1991-06-03—Filed