公开(公告)号：US4456811A

公开(公告)日：1984-06-26

申请号：US390176

申请日：1982-06-21

Applicant: Richard A. Hella ,  John V. Staal

Inventor： Richard A. Hella ,  John V. Staal

IPC: B23K26/073 ,  B23K27/00

CPC classification number: B23K26/0738 ,  B23K26/0643 ,  B23K26/0734 ,  B23K26/0823 ,  Y10S148/903

Abstract: This invention is directed to a method of and apparatus for heat treating axisymmetric surfaces such as inner and outer surfaces on pipes, shafts, gears, valve seats and the like with a laser beam. An annular laser beam is provided and caused to impinge on a segmented generally conical mirror which focuses and/or directs the laser beam onto the desired surface of a work piece as an annular or ring-shaped beam with a predetermined width and energy profile. Relative movement about the axis of the laser beam may be provided between the work piece and the laser beam to average any intensity distributions around the laser beam. Additionally, relative movement along the axis of the laser beam may also be provided between the work piece and the laser beam in the case of shafts, pipes and the like to provide uniform and non-overlapping coverage of the surface to be treated.

Abstract translation: 本发明涉及一种利用激光束对诸如管，轴，齿轮，阀座等的轴对称表面进行热处理的方法和装置。 提供环形激光束并使其撞击在分段的大致圆锥形的镜上，其将激光束聚焦和/或将激光束引导到作为具有预定宽度和能量分布的环形或环形光束的工件的期望表面上。 可以在工件和激光束之间提供围绕激光束的轴的相对运动，以平均激光束周围的任何强度分布。 另外，在轴，管等的情况下，沿着激光束的轴线的相对运动也可以设置在工件和激光束之间，以提供待处理表面的均匀且不重叠的覆盖。