Method and apparatus for forging bevel gears

Details Method and apparatus for forging bevel gears Method and apparatus for forging bevel gears

1975-06-12

1977-09-27

Combs, E. M.

Metal deforming

By use of closed-die and coacting work-forcer

With stripping or ejecting from tool

29DIG18, 291592, 294205, 72354, 72360, B21D 2202, B21D 4500, B21K 130

Patent

active

040502830

ABSTRACT:
Helical or spiral bevel gears are forged from powdered material in a mold ving a stationary die in which a cavity is provided with an interior gear configuration conforming to the desired gear blank to be forged. An ejector rod is movably mounted within the stationary die along its central axis and is provided with means which cause its stroke to have an axial and rotary movement corresponding to the pitch of the teeth on the gear. The front edge of the ejector rod is provided with means forming a key-lock arrangement with the gear blank, thereby simultaneously rotating the gear out of the die on its ejection stroke.

REFERENCES:
patent: 2964838 (1960-12-01), Schober
patent: 3247534 (1966-04-01), McClellan
patent: 3429172 (1969-02-01), Lierse et al.
patent: 3677672 (1972-07-01), Harrington
patent: 3813909 (1974-06-01), Roger
patent: 3832763 (1974-09-01), Schober
patent: 3887978 (1975-06-01), Dohmann
patent: 3910091 (1975-10-01), Samanta

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