EP 2108711 A1 20091014 - Process for manufacturing engine starting motor shafts
Title (en)
Process for manufacturing engine starting motor shafts
Title (de)
Herstellungsverfahren für Anlassermotor Zahnstange
Title (fr)
Procédé de fabrication d'axes de démarrage de moteur
Publication
Application
Priority
EP 08425239 A 20080410
Abstract (en)
The present invention refers to a process for manufacturing engine starting motor shafts, comprising the steps of: - providing a raw workpiece made of a C45EC-grade steel made of a material having a chemical composition comprising the following elements as percentages referred to the total weight of the raw workpiece: from 0.32 to 0.45 weight-percent of C; from 0.73 to 0.80 weight-percent of Mn; from 0 to 0.013 weight-percent of Si; from 0 to 0.10 weight-percent of P; from 0 to 0.10 weight-percent of S; - submitting said raw steel workpiece to a single cold-forming cycle to produce an intermediate workpiece adapted to undergo subsequent surface machining or chemical-physical finishing treatments.
IPC 8 full level
C22C 38/04 (2006.01); B21K 1/06 (2006.01); B21K 1/30 (2006.01); C22C 30/00 (2006.01); F16H 55/06 (2006.01)
CPC (source: EP)
B21K 1/066 (2013.01); B21K 1/12 (2013.01); C22C 38/00 (2013.01); C22C 38/04 (2013.01)
Citation (search report)
- [Y] JP 2000202564 A 20000725 - MITSUBA CORP, et al
- [Y] EP 1041166 A1 20001004 - FUJI KIKO KK [JP]
- [A] US 4896551 A 19900130 - MINAMI HIDEYUKI [JP], et al
- [A] JP H02303648 A 19901217 - MITSUBA ELECTRIC MFG CO
- [A] US 5211048 A 19930518 - TAKAHARA KATSUO [JP], et al
- [Y] "Material Card Index -Material number 1.1192 - C45EC", WWW.METALLOGRAF.DE/WERKSTOFFKARTEI-ENG/1192/1192.HTM, 2006 - 2006, DE, XP002498407
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08425239 A 20080410