Title:
歯車及び歯車の製造方法
Document Type and Number:
Japanese Patent JP3975040
Kind Code:
B2
Abstract:
The invention discloses a gear having a high strength and a high dimension precision, and a method of making same. A cut material (1) is heated in an anti-oxidation atmosphere. Then, a form (4) including gear teeth (5) and having nearly completed shape is formed from the upset material (2) at one time by hot forging. The form (4) undergoes gear grinding (6), whereby a finished product (7) is obtained. The form (4) has a curved surface (R) previously formed at a corner along a tooth trace of a tooth flank.
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| JPH06126353 | METHOD FOR ATTACHING FLANGE IN DRIVING SHAFT OR BEARING |
| JP3813404 | GEAR FORMING METHOD |
Inventors:
Mitsuhiko Shimomura
Application Number:
JP36536199A
Publication Date:
September 12, 2007
Filing Date:
December 22, 1999
Export Citation:
Assignee:
Ooka Giken Co., Ltd.
International Classes:
B21K1/30; B23F19/12; B23P15/14; F16H55/06
Domestic Patent References:
| JP11179478A | ||||
| JP5318234A | ||||
| JP11300446A | ||||
| JP5195960A | ||||
| JP3288052A |
Attorney, Agent or Firm:
▲高▼橋 克彦
Yoshiki Ishida
Yoshiki Ishida