B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/20 (2006.01) B23K 26/14 (2006.01) B23K 26/24 (2006.01) B23K 26/32 (2006.01) B23K 26/38 (2006.01) B23K 28/02 (2006.01)
Patent
CA 2459415
A method of welding at least two metal sheets protected by a zinc coating that has a low vaporizing temperature. The metal sheets are placed on top of each other and a head of a welding machine is passed over the sheets. The head of the welding machine is configured such that a laser is positioned in front of a GMAW welding or MIG brazing device. The laser cuts a channel into the metal sheets in order to allow the protective zinc coating to vaporize and escape. The GMAW welder or MIG brazing device then follows the laser and deposits a material that fills the channel to weld the two pieces together.
Dana Corporation
Ridout & Maybee Llp
LandOfFree
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