公开(公告)号：US20070228102A1

公开(公告)日：2007-10-04

申请号：US11751829

申请日：2007-05-22

申请人： Timothy Trapp ,  James Fisher ,  Jeffrey Bemath

发明人： Timothy Trapp ,  James Fisher ,  Jeffrey Bemath

IPC分类号： B23K20/12

CPC分类号： B23K20/1225 ,  B23K20/1255

摘要： A method of friction stir welding and a non-consumable retractable shoulderless variable penetration friction stir welding tool. The tool includes a substantially cylindrical body portion, a head portion, and a tip section, each integral to the tool. The body portion has a longitudinal axis about which it is rotable, a diameter, a sidewall substantially parallel to the longitudinal axis, a proximal end, and a distal end. The head portion is located at the distal end of the body portion. The head portion has a base with a diameter substantially equal to the diameter of the body portion thereby forming a smooth transition between the body portion and the head portion, thus the tool has no shoulder. The head portion includes a face that converges to the tip section. The tool is retractable, reduces overheating, improves weld quality by reducing internal voids and lack of fusion, and facilitates variable penetration welds.

摘要翻译： 一种摩擦搅拌焊接方法和一种不消耗可伸缩无肩可变穿透摩擦搅拌焊接工具。 工具包括基本上圆柱形的主体部分，头部部分和尖端部分，每个部分与工具成一体。 主体部分具有纵向轴线，可绕其旋转直径，基本上平行于纵向轴线的侧壁，近端和远端。 头部位于主体部分的远端。 头部具有直径基本上等于主体部分的直径的基部，从而在主体部分和头部之间形成平滑的过渡部分，因此工具没有肩部。 头部包括会聚到尖端部分的面。 该工具可伸缩，减少过热，通过减少内部空隙和缺乏熔合来改善焊缝质量，并促进可变的穿透焊缝。