Process for the production of a shaped parts from pieces of sheet metal of different thicknesses
First Claim
1. A process for producing shaped parts shaped by pressing from welded sheet metal pieces of different thicknesses, characterized in that flat pieces of sheet metal of different thicknesses are butt welded with a laser beam without adding filler material and then shaped as a unit by pressing.
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Accused Products
Abstract
A process for making a shaped member 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 thickness, are converted into a shaped member by pressing or deep drawing. 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 example, of zinc lost during laser beam welding.
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Citations
10 Claims
- 1. A process for producing shaped parts shaped by pressing from welded sheet metal pieces of different thicknesses, characterized in that flat pieces of sheet metal of different thicknesses are butt welded with a laser beam without adding filler material and then shaped as a unit by pressing.
Specification