... high efficiency usage:weld, harden,forge,anneal and melt High Frequency Electric Welder for Brazing Saw BladesFirst, the high-frequency ... alloy turning, milling, planer, saw, reamer, boring and so on.Advantages for welding alloy cutting tools:1, induction heating speed, ... 1-5 seconds;2, reproducible and have good reproducibility for each tooth;3, heating quickly and evenly, can effectively prevent ...