Apparatus for joining two workpiece parts along a weld by means of transmission welding
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United States of America Patent
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Mar 17, 2015
Grant Date -
May 8, 2014
app pub date -
Nov 8, 2012
filing date -
Nov 10, 2011
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Abstract
Apparatus has a receptacle (1) for two workpiece parts (21, 22) which extend two-dimensionally in X and Y directions and which are to be joined along a weld. The apparatus includes a laser beam source (30) comprising a plurality of individually controllable laser beam emitters (31) which collectively form a line array which is oriented in X direction, a transporting device (6) for transporting the laser beam source (30) relative to the receptacle (1) in Y direction, and a homogenizer (50) arranged downstream of the laser beam source (30) in the radiating direction. The homogenizer (50) has a carrier (52) in which is provided at least one reflection channel (51) with a channel cross section (QS) which is adapted to the course of the weld and a channel width (b) which is adapted to the width of the weld.
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