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在ＩＣＡＬＥＯ’９８会议上，美国Ｆｒａｕｎｈｏｆｅｒ资源中心提出了一个简单的用双光束的ＣＯ２激光进行焊接的方法．该器件的光学结构是采用一个有两个面的镜子，两面倾斜成０．０５°使光束分开．分开的光束被一个２００ｍｍ焦距的抛物面镜聚焦，并把这两条孪生光束传送
At the ICALEO’98 conference, the Fraunhofer Resource Center in the United States presented a simple method of welding with a two-beam CO2 laser. The optical structure of the device is the use of a mirror with two faces, with both sides inclined at 0.05 ° to separate the light beam. The split beam is focused by a 200 mm focal length parabolic mirror and the two twin beams are transmitted