Figure U type workpiece, rings and the straight rod are made of cold drawn wire diameter 5.3! U ring and straight link is manual arc welding, now I have modified a pair of welding machine, the welding jig is two cylinder clamping! The welding power with the power of DN-10 type electric welding machine, the problems encountered are: butt straight rod contact type U ring almost melted, can contact U ring without signs of heating, fixture and release it, just fake welding, no nugget, touch off! Before the professional steel butt welder also tried the same problem, at first thought it was wrong to fixture, but after the good fixture, or the same problem, please master pointing, in the end is what causes the U ring is not heated, thank you!
Because the straight rod is only one end of heat dissipation, U type has two ends of heat dissipation, so it will lead to straight rod melting, and U type rod is not melting, try lap mode.
Try to change the U type steel bar
