B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
117/231, 117/73
B23K 26/00 (2006.01) B22F 3/105 (2006.01) B23K 26/32 (2006.01) B23K 26/34 (2006.01) B23K 35/30 (2006.01) B29C 67/00 (2006.01) C23C 26/00 (2006.01)
Patent
CA 1248413
ABSTRACT OF THE DISCLOSURE In this method for padding, a layer of a copper type alloy material in powdered form is laid upon a portion of a base of aluminum type metal which is to be padded. Then a laser beam, concentrated to a spot from about 0.5 mm to about 2.0 mm in diameter with an output density of from about 80 watt/mm2 to about 20,000 watt/mm2, is irradiated upon this layer of powdered copper type alloy material upon the base of aluminum type metal. The laser beam and the base of aluminum type metal are relatively moved in a relative longitudinal direction at a longitudinal speed of from about 100 mm per minute to about 3000 mm per minute; and they are also reciprocatingly moved in a relative direction substantially transverse to the longitudinal direction at an transverse oscillating frequency of above about 80 Hz. Thereby, good padding efficiency is obtained. The copper type alloy material may initially be applied as a powder including a binder and then be dried, before the laser irradiation; or it may be applied automatically substantially during the laser irradiation.
513961
Kawasaki Minoru
Mori Kazuhiko
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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