Process for finish-machining crank shafts for motor car engines

Details Process for finish-machining crank shafts for motor car engines Process for finish-machining crank shafts for motor car engines

2003-08-02

2010-11-09

Chang, Rick K (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888010, C072S010100, C072S031070, C072S083000, C072S110000

Reexamination Certificate

active

07827684

ABSTRACT:
The invention relates to a process for finish-machining of bearing positions on main bearing journals and connecting rod bearing journals of crankshafts for motor car engines, whereby the crankshafts have roundings between the bearing positions and transitions adjacent in each case to the bearing positions. The roundings are deep rolled with a deep rolling tool and then, while maintaining a distance interval to an individual transition in each case the bearing position concerned is machined with removal of material with a small cutting depth.

REFERENCES:
patent: 4494280 (1985-01-01), Blaimschein
patent: 5009001 (1991-04-01), Deschler
patent: 5408745 (1995-04-01), Tomiyama et al.
patent: 6393885 (2002-05-01), Cadena
patent: 39 39 935 (1991-06-01), None
patent: 199 19 893 (2000-11-01), None
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patent: 1 052 049 (2000-11-01), None
patent: 1 211 026 (2002-06-01), None
patent: 63 068325 (1988-08-01), None
International Search Report for PCT/EP03/008575 (in English and German).
International Preliminary Examination Report for PCT/EP03/008575 (in German).

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