FIELD: process engineering.
SUBSTANCE: hob is intended for gear wheel tooth hobbing and comprises case with its lengthwise grooves accommodating cutting and thrusting racks clamped therein. Thrust rack needle-type teeth composed of frieze bundles are made up of bard of metal wire interconnected by elastic body. Note here that needle-type tooth thickness exceeds that of cutting tooth by double interference. Note here that said bars feature L-like shape with radial arrangement of bar root and bent part extending outward to form needle-type tooth lateral working part and act on tooth lateral surface to harden it and cut micro irregularities.
EFFECT: expanded performances.
11 dwg
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RU2467839C2 |
