Method of making a ring gear

Details Method of making a ring gear Method of making a ring gear

1994-01-07

1995-02-28

Echols, P. W.

Metal working

Method of mechanical manufacture

Gear making

B21D 5328

Patent

active

053925173

ABSTRACT:
A ring gear is formed from a blank taken from a hot extruded tube stock. The tube stock is extruded to predetermined dimensions substantially smaller than the finished ring gear blank. A toroidal blank is cut from the tube stock and measured to determine the mass thereof. The blank is expanded by rolling it to new inner and outer diameters and width after which a set of gear teeth are formed on the periphery of the expanded blank.

REFERENCES:
patent: 1632818 (1927-06-01), Black
patent: 3839892 (1974-10-01), Andreissen

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