Title:
SINTERED GEAR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/085380
Kind Code:
A1
Abstract:
A sintered gear manufacturing method comprising a step for preparing a green compact having gear-shaped end faces on both sides in an axial direction and multiple teeth on an outer peripheral surface formed between the two end faces, a step for chamfering, by using a brush, edges of the teeth constituted by the end faces and the outer peripheral surface, and a step for sintering the chamfered green compact, wherein: the brush is a wheel-type brush having a disc-like wheel and bristles radially projecting from the outer periphery of the wheel; and the chamfering step is a step in which the brush is arranged with respect to the green compact such that the axial direction of the green compact and the axial direction of the wheel intersect with each other, the tip of the bristles is brought into contact with tooth-bottom edges constituted by the end faces of the green compact and the tooth-bottom surfaces of the teeth on the outer peripheral surface, and the brush is relatively moved, while being rotated, along a circumferential direction of the green compact.
Inventors:
SHIMAUCHI KAZUNARI (JP)
UENO TOMOYUKI (JP)
ISHIMINE TOMOYUKI (JP)
UENO TOMOYUKI (JP)
ISHIMINE TOMOYUKI (JP)
Application Number:
PCT/JP2021/035750
Publication Date:
April 28, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
International Classes:
B22F3/10; B22F5/08; B23F19/10; B23P15/14; C22C38/00; F16H55/17
Foreign References:
| JP2020082203A | 2020-06-04 | |||
| JP2019188592A | 2019-10-31 | |||
| JPS53125914A | 1978-11-02 |
Attorney, Agent or Firm:
MORITA Takeshi et al. (JP)
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