Method of and apparatus for strengthening gear tooth

Details Method of and apparatus for strengthening gear tooth Method of and apparatus for strengthening gear tooth

1991-02-14

1992-07-07

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 84, B21H 500

Patent

active

051272466

ABSTRACT:
For strengthening teeth of a toothed wheel, the bottom lands of the toothed wheel are pushed by a stamping tool against a backup gear for thereby causing residual compressive stress at locations extending from the bottom lands to roots of the teeth. The stamping tool has stamping projections which are angled at the tips thereof to have tapering ends and brought into contact at the tapering ends with the bottom lands of the toothed wheel. The stamping tool is axially movable relative to the work such that the tapering ends are brought into contact with the bottom lands of the toothed wheel at locations which are different axially of the toothed wheel.

REFERENCES:
patent: 1558086 (1925-10-01), Gustavsen
patent: 1642179 (1927-09-01), Schurr
patent: 3292405 (1966-12-01), Tremblay
patent: 3563076 (1971-02-01), Daniel
patent: 4798077 (1989-01-01), Douglas

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