Title:
【発明の名称】ホブ及びホブ素材の研削方法
Document Type and Number:
Japanese Patent JP3001290
Kind Code:
B2
Abstract:
A hob for cutting gear teeth includes a plurality of generally axially extending and generally circumferentially spaced rows of teeth. The hob is adapted to be thrown away instead of being re-sharpened when the cutting edges of the teeth become worn. Consistent with this, the teeth-rather than being formed with a conventional re-sharpenable profile-are ground so that the tip, the side flanks and the root of each tooth are of a circumferentially concave shape. The grinding is effected by a unique positional mode in which the hob blank is held stationary and in which the grinding wheel is located relative to the blank in such a manner as to enable the use of a wheel of the largest possible diameter for the design criteria of the particular hob being formed.
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Inventors:
Robert P. Phillips
Application Number:
JP14351791A
Publication Date:
January 24, 2000
Filing Date:
June 14, 1991
Export Citation:
Assignee:
Fauter-MAG Cutting Tools Limited Partnership
International Classes:
B23F21/16; B24B3/12; B24B53/085; (IPC1-7): B23F21/16; B24B3/12
Domestic Patent References:
| JP5558916A |
Attorney, Agent or Firm:
Kazuo Shamoto (4 outside)