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发明授权
CN107042359B 摩擦搅拌接合方法及接合体 失效 - 权利终止

摩擦搅拌接合方法及接合体
摘要：
本发明的实施方式涉及的摩擦搅拌接合方法中，相对于由第1金属部件、主元素与所述第1金属部件所含的主元素相同的第2金属部件、和夹在所述第1金属部件的至少一部分与所述第2金属部件的至少一部分之间且主元素与所述第1金属部件及所述第2金属部件所含的主元素相同、粒径为20μm以下的第3金属部件构成的被接合部件，一边使前端具有突起的工具旋转一边向所述被接合部件按压，从而将所述第1金属部件、所述第2金属部件和所述第3金属部件接合。
摘要（英）：

A friction stir welding method includes joining a first metal member, a second metal member, and a third metal member by pressing a tool onto a joining member while rotating the tool. The tool has a protrusion at a tip of the tool. The joining member includes the first metal member, the second metal member, and the third metal member. A major element of the second metal member is the same as a major element included in the first metal member. The third metal member is sandwiched between at least a portion of the first metal member and at least a portion of the second metal member. A major element of the third metal member is the same as the major element included in the first metal member and the second metal member. A crystal grain size of the third metal member is 20 μm or less.

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