Method of manufacturing a double-structure synchronizer ring

Details Method of manufacturing a double-structure synchronizer ring Method of manufacturing a double-structure synchronizer ring

1997-06-18

2000-01-18

Echols, P. W.

Metal working

Method of mechanical manufacture

Gear making

192107M, B21D 5328

Patent

active

060148071

ABSTRACT:
This invention relates to a double-synchronizer ring and its manufacturing method. More particularly, this invention relates further to a novel type of the double-structure synchronizer ring and its manufacturing method using raw material powder which is press molded and sintered for the embodiment of the synchronizer ring thereof. The synchronizer ring according to this invention is constructed in such a manner to separate an inter-diameter indentation portion comprising copper powder sintering agent and an external ring body portion comprising sintering metal and then, to indent the inter-diameter indentation portion into an inter-diameter of the external ring body portion, so as to embody an integrated form of the synchronizer ring. Thus, the synchronizer ring according to this invention has a better friction force and cost-saving benefits than the conventional one.

REFERENCES:
patent: 4917743 (1990-04-01), Gramberger et al.
patent: 4931117 (1990-06-01), Muller
patent: 5370725 (1994-12-01), Kawamura et al.
patent: 5433774 (1995-07-01), Kapl et al.

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