| 摘要 |
PURPOSE:To eliminate the need for a notcher and to reduce working time by welding front and rear steel plates by a laser beam then notching both sides in the joint part of the steel plates to an optional size and shape by working heads using the laser beam. CONSTITUTION:The joint part of preceding and succeeding steel plates 1, 2 is stopped in a prescribed position and is welded and connected by a heat 10 in common use for welding and cutting of a laser beam welding machine. The plates 1, 2 are retreated to the prescribed position and are stopped then a head 9 for cutting and the head 10 are moved to both side faces of the preceding plate 1 and are stopped. The plates 1, 2 are thereafter moved in the direction (f); at the same time, the head 9 and the head 10 are moved toward the central directions (g), (h), by which the point port is notched. Both sides of the joint part (a) are notched to an optional size and shape by controlling the feed rates and speeds of the plates 1, 2 and the heads 9, 10 with each other. |
