公开(公告)号：US20090166395A1

公开(公告)日：2009-07-02

申请号：US12282509

申请日：2007-03-07

申请人： Kazuhiro Nakata ,  Hidetoshi Fujii ,  Takeshi Ishikawa ,  Walter Veldsman ,  Andrew Johnson

发明人： Kazuhiro Nakata ,  Hidetoshi Fujii ,  Takeshi Ishikawa ,  Walter Veldsman ,  Andrew Johnson

IPC分类号： B23K20/12

CPC分类号： B23K20/1235 ,  B23K20/1265 ,  B23K37/003

摘要： Metal materials made of iron (Fe) or the like are butted together at a joint, and a probe of a rotary tool is inserted into the joint. The rotary tool is rotated while being moved in the lengthwise direction of the joint, whereby the metallographic structure of the joint is stirred, and the metal materials are joined. While the rotary tool is being rotated and moved, liquid CO2 is supplied to the joint and the rotary tool. Electromagnetic valves are suitably opened and closed so that nozzles discharge the liquid CO2 from the rear in the movement direction of the rotary tool. Supplying the liquid CO2 to the joint and the rotary tool reduces wear of the rotary tool, and also increases the joining strength of the joint.

摘要翻译： 由铁（Fe）等制成的金属材料在接头处对接在一起，旋转工具的探头插入接头中。 旋转工具在沿接头的长度方向移动的同时旋转，从而搅拌接头的金相结构，并且金属材料接合。 当旋转工具被旋转和移动时，液体CO 2被供应到接头和旋转工具。 电磁阀适当地打开和关闭，使得喷嘴在旋转工具的移动方向上从后部排出液体CO 2。 向接头和旋转工具供应液体CO2减少了旋转工具的磨损，并且还增加了接头的接合强度。