FRICTION STIR WELDING DEVICE AND METHOD OF MANUFACTURING DIFFERENT THICKNESS TAILORED BLANK MATERIAL OF DIFFERENT KINDS OF METALS UTILIZING FRICTION STIR WELDING DEVICE

摘要

PROBLEM TO BE SOLVED: To make the surface of a joined part into a smooth slope where the thickness is continuously varied in the manufacture of a tailored blank material by friction stir welding.;SOLUTION: In a friction stir welding device 1, friction stirring is performed by inserting a probe 12 along the butted surface 14 after holding the joining base materials 13, 13' by tilting upper and lower shoulders 2, 7 in accordance with the thickness of the joining base materials 13, 13' having different thicknesses. Since overflowed matter of the joining base material 13 which is generated during the friction stir welding is introduced to the side of the joining base material 13 having a thin-plate shape with the probe 12 and tilting upper and lower shoulders 2, 7 and solidified, the surface of the joined part 15 becomes the smooth slope in which the thickness is continuously varied.;COPYRIGHT: (C)2009,JPO&INPIT