B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
113/69
B23K 26/00 (2006.01) B23K 26/24 (2006.01) B23K 26/32 (2006.01)
Patent
CA 1276506
ABSTRACT OF THE INVENTION The invention relates to a process for making a shaped part from sheet metal pieces (37,38) of different thicknesses. In the process flat sheet metal pieces (37,38) are butt welded at their cut edges by laser beam welding. Then the unit, welded together from a number of sheet metal pieces (37,38) of different thick- ness, are converted into a shaped part by pressing or deep draw- ing. Since the material of sheet metal pieces (37,38) is not much affected by laser beam welding and the laser-beam-welded joint (39) does not expand much, the joint (39) has no adverse effect on shaping, nor is any anti-corrosion protection, for ex- ample, of zinc lost during laser beam welding.
554946
Frings Adam
Prange Wilfried
Fetherstonhaugh & Co.
Thyssen Stahl Aktiengesellschaft
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