undercut weld

基本解釋

Use alternating transverse magnetic-field to control dragged arc, overcome weld undercut, and improve the appearance of weld.
所以控制電弧后拖是高速焊改善焊縫成形的關(guān)鍵。
In GMAW welding process, when the welding speed reaches a certain threshold, there will be onset of weld bead undercut defects.
在GMAW焊接過程中，當焊接速度達到某一臨界值時會出現(xiàn)咬邊缺陷，進一步提高焊接速度就會產(chǎn)生駝峰焊道。
In horizontal position welding, the gravity makes molten metal flow downward and sometimes causes weld defects such as undercut and overlap.
橫向焊接時由于熔化金屬重力的作用，會引起熔池金屬下淌，從而產(chǎn)生咬邊以及焊瘤等焊接缺陷。