抄録
There was spoken that steel bars welding joint need to three removal axis of horizontal position welding method, be used to play four removal axis of horizontal position welding process to deliberate about weight and cost. To embody this welding method, there was how to play stick, how to play arc starting, how to choose backing. This welding process in quality control is as well as arm welding. There show that arm-welding having excludes from unstable element.
