公开(公告)号：US5665255A

公开(公告)日：1997-09-09

申请号：US509903

申请日：1995-08-01

Applicant: Peter L. Busuttil

Inventor： Peter L. Busuttil

IPC: B23K26/06 ,  B23K26/24 ,  B23K26/32 ,  B23K26/08

CPC classification number: B23K26/06 ,  B23K26/064 ,  B23K26/0665 ,  B23K26/244 ,  B23K26/32 ,  B23K2201/185 ,  B23K2203/10 ,  B23K2203/50

Abstract: Metal alloy workpieces are laser welded to one another with a laser head emitting a laser beam. The laser head and workpieces are moved relative to one another at a predetermined velocity along a weld path. The laser beam power is selectively modulated to have an output with a desired frequency andr amplitude. An oscillating motion of the laser beam is superimposed on top of the relative velocity of movement between the laser head and the workpieces along the weld path, such that a rate of cooling of molten metal is controlled to a predetermined rate. A stroke rate of the oscillating motion is synchronized with the frequency of the modulated power output so that as the laser head moves along the weld path at a constant velocity, the laser beam is oscillated to thereby cause the laser beam to at least slow down relative to the velocity of travel between the laser head with respect to the workpieces along the weld path during backward oscillatory movement of the laser beam.

Abstract translation: 用激光头激光焊接金属合金工件。 激光头和工件沿着焊接路径以预定的速度相对于彼此移动。 激光束功率被选择性地调制以具有期望的频率和/或幅度的输出。 激光束的振荡运动叠加在激光头和工件沿着焊接路径的相对运动速度之上，使得熔融金属的冷却速度被控制到预定的速率。 振荡运动的行程速率与调制功率输出的频率同步，使得随着激光头以恒定的速度沿着焊接路径移动，激光束被振荡，从而使激光束至少相对减慢 相对于在激光束的反向振荡运动期间激光头相对于工件沿着焊接路径的行进速度。

公开(公告)号：US06344626B1

公开(公告)日：2002-02-05

申请号：US09499823

申请日：2000-02-08

Applicant: Peter L. Busuttil

Inventor： Peter L. Busuttil

IPC: B23K2620

CPC classification number: B23K26/244 ,  B23K26/22 ,  B23K26/242 ,  B23K33/004 ,  B23K2101/34 ,  B23K2103/04

Abstract: A hemmer apparatus has at least one welding laser attached to the moveable crown for controlled welding of the hemmed panels to hold the panels with respect to one another, at least temporarily, and/or to maintain geometry between the panels until permanently fixed, such as when the adhesive cures or when additional welding is performed. Laser welding in the hemmer apparatus can be performed by providing relief in the steel used to form the hem, or by providing a tab in the hem material extending beyond the steel forming the hem, or a combination of the two, in order to allow access of the laser beam to the location where the geometry stabilizing tack weld is desired to be placed. Multiple welds are placed in spaced locations about the periphery of the hemmed panels as required for the specific application.

Abstract translation: 一种半湿式装置具有至少一个焊接激光器，其连接到可移动的冠上，用于受控焊接的边缘板，以相对于彼此保持面板，至少暂时地和/或维持面板之间的几何形状，直到永久固定，例如 当粘合剂固化时或当进行额外的焊接时。 可以通过在用于形成下摆的钢中提供浮雕，或者通过在形成下摆的钢板中提供延伸超过钢板的凸片或两者的组合来实现冲压装置中的激光焊接，以便允许进入 的激光束到需要放置几何稳定定位焊缝的位置。 根据具体应用的需要，多个焊缝被放置在围绕边缘板的周边的间隔位置。