Metal deforming – By use of closed-die and coacting work-forcer – With stripping or ejecting from tool
Patent
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
Bayerisches Leichtmetallwerk Graf Blucher von Wahlstatt KG
Combs E. M.
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