公开(公告)号：US5468932A

公开(公告)日：1995-11-21

申请号：US168701

申请日：1993-12-16

Applicant: Heinz J. Jacob

Inventor： Heinz J. Jacob

IPC: B23K26/00 ,  B23K26/14 ,  B23K26/142 ,  B23K26/362 ,  B23K26/364 ,  B23K26/40 ,  H01J9/14 ,  H01J35/10

CPC classification number: B23K26/0084 ,  B23K26/0006 ,  B23K26/0066 ,  B23K26/142 ,  B23K26/1437 ,  B23K26/1476 ,  B23K26/362 ,  B23K26/364 ,  B23K26/40 ,  H01J35/10 ,  H01J9/14 ,  B23K2203/08 ,  B23K2203/50 ,  H01J2235/106

Abstract: The invention relates to a method of generating a pattern of depressions in the surface of a workpiece, in particular one made of molybdenum or a molybdenum alloy for rotary-anode X-ray tubes. Such a method can be arranged in a more inexpensive and/or more environmentally friendly manner in that the workpiece is heated spotwise by a laser beam, the heating spot being directed over the surface in accordance with the pattern of depressions, in that a jet of oxygen is directed at the heating spot, and in that the energy supply to the heating spot is so controlled that the melting temperature of the workpiece material is not reached, while nevertheless the sublimation temperature of the oxide formed by the heating is exceeded.

Abstract translation: 本发明涉及一种在工件表面产生凹陷图形的方法，特别是用于旋转阳极X射线管的由钼或钼合金制成的凹凸图案。 这种方法可以以更便宜和/或更环保的方式布置为：通过激光束对工件进行点阵加热，加热点根据凹陷的图案被引导到表面上， 氧被引导到加热点，并且由于控制加热点的能量供应不能达到工件材料的熔化温度，而是超过由加热形成的氧化物的升华温度。