公开(公告)号：US5665134A

公开(公告)日：1997-09-09

申请号：US487366

申请日：1995-06-07

申请人： Kevin Kirby ,  Doruk Engin ,  Tony Jankiewicz ,  Joe W. Barber

发明人： Kevin Kirby ,  Doruk Engin ,  Tony Jankiewicz ,  Joe W. Barber

IPC分类号： B23K26/00 ,  B23K26/40 ,  B28D1/22 ,  C03B29/02 ,  C03C10/00 ,  C03C23/00 ,  H01Q1/42 ,  C03B33/00 ,  C03B32/00 ,  C03B31/00 ,  C03C19/00

CPC分类号： H01Q1/42 ,  B23K26/40 ,  B28D1/221 ,  C03B29/02 ,  C03C23/0025 ,  B23K2203/52

摘要： Rough machining of a glass-ceramic material article such as a radome is accomplished using a high-power Nd:YAG laser. The radome is rotated about its longitudinal axis, and the point of application of the laser beam is translated generally parallel to the longitudinal axis over either the inside or outside surface of the radome. The Nd:YAG laser preferably operates in a pulsed wave mode with a pulse duration of from about 0.3 to about 3 milliseconds, a pulse frequency of from about 50 to about 500 pulses per second, and a pulse intensity of at least about 3.times.10.sup.4 Watts per square centimeter. After laser rough machining, at least about 0.002 inches of material is removed from the rough-machined surface by a finish machining, preferably mechanical grinding.

摘要翻译： 使用高功率Nd：YAG激光器实现诸如雷达罩的玻璃陶瓷材料制品的粗加工。 雷达罩围绕其纵向轴线旋转，并且激光束的施加点在天线罩的内表面或外表面上大致平行于纵向轴线平移。 Nd：YAG激光器优选以脉冲持续时间为约0.3至约3毫秒的脉冲波模式操作，脉冲频率为约50至约500脉冲/秒，脉冲强度为至少约3×10 4瓦/秒 平方厘米。 在激光粗加工后，通过精加工，优选机械研磨，从粗加工表面去除至少约0.002英寸的材料。