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US 4,012,829 AGranted
Shaping-and-cutting broach
OwnerJury Ivanovich Dvorov, Vladislav Evgenievich Orlovinventors
Life of this patent
Estimating the term…
Abstract
A shaping-and-cutting broach comprising cutting and gauging teeth and a shaping element located before the cutting teeth, said shaping element provided with projections on its surface which contacts the machined surface. Owing to said projections each cutting tooth has a continuous cutting edge and this, in turn, increases the strength of the tool as a whole and reduces the cost of its manufacture and operation.
Claims6
A shaping-and-cutting broach comprising:
- cutting teeth, each having a continuous cutting edge;
- gauging teeth;
- a shaping element located before said cutting teeth and provided with projections on the external surface which interacts with the machined surface in the course of broaching;
- said projections whose height is essentially greater than the total feed of said cutting teeth.
1 more element
Dependencies are inferred from the claim text.