Title:
METHOD AND SYSTEM FOR LASER WELDING
Document Type and Number:
WIPO Patent Application WO2008052551
Kind Code:
A8
Abstract:
The invention relates to laser welding of at least two adjacent, abutting or overlapping work pieces in a welding direction using multiple laser beams guided to a welding region, wherein at least two of the multiple laser beams are coupled into the welding region so as to form a melt and at least one keyhole, each of said at least two laser beams having high intensity, such as provided by a disc laser or a fibre laser, and each having a beam parameter product (BPP) less than 10 mm*mrad, alternative less than 5 mm*mrad, alternative less than 1 mm*mrad, alternative less than 0,5 mm*mrad. A particularly improved melt formation and melt flow control is achieved.
Inventors:
OLSEN FLEMMING OVE ELHOLM (DK)
Application Number:
PCT/DK2007/000466
Publication Date:
October 02, 2008
Filing Date:
October 30, 2007
Export Citation:
Assignee:
UNIV DANMARKS TEKNISKE (DK)
OLSEN FLEMMING OVE ELHOLM (DK)
OLSEN FLEMMING OVE ELHOLM (DK)
International Classes:
B23K26/06; B23K26/24
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