METHOD FOR OBTAINING ENHANCED FATIGUE STRENGTH IN WELDED METAL JOINTS AND HAMMER HEAD FOR USE AT COLD WORKING - Patent 1937852

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EP 1 937 852 A1

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(43)	Date of publication:
	02.07.2008 Bulletin 2008/27

(21)	Application number: 06744520.5

(22)	Date of filing: 19.04.2006

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International Patent Classification (IPC):

C21D 7/04^(2006.01)

B23K 31/00^(2006.01)

(86)	International application number:
	PCT/IB2006/000928

(87)	International publication number:
	WO 2006/111829 (26.10.2006 Gazette 2006/43)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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Priority:

19.04.2005 NO 20051913

(71)	Applicant: Aibel AS
	1375 Billingstad (NO)

(72)	Inventor:
	FREDBORG, Andreas 1384 Asker (NO)

(74)	Representative: Fröderberg, Anders Oskar
	BRANN AB Västgötagatan 2 P.O. Box 17192 104 62 Stockholm 104 62 Stockholm (SE)

(54)	METHOD FOR OBTAINING ENHANCED FATIGUE STRENGTH IN WELDED METAL JOINTS AND HAMMER HEAD FOR USE AT COLD WORKING