1.The present invention provideS a friction stir welding method for preventing an unwelded portion at the center of a welding interface.
本发明提供一种在搭接接缝的摩擦搅拌接合中可防止接合部中心的未接合的方法。
2.One hardness test shall be performed on each wetted surface cut with oxy-fuel or arc-air which is left unwelded on the finished part.
用含氧燃料或电弧气切削加工表面上的未焊接的湿表面，应作硬度试验。
3.Pinhole. A short unwelded area in the weld line extending through the entire pipe so that fluid will leak out through the area very slowly.
针孔。指焊缝线上位焊接的、贯穿管子整个壁厚的细孔，可导致流体从该孔缓慢漏出。
4.SelNakedMeshEdgePt Select unwelded polygon mesh edges
选择未焊接多边形mesh网格边线