To weld well, the control of the molten pool is something you must learn!
Molten pool temperature, directly affect the welding quality, molten pool temperature is high, molten pool is larger, hot iron flow is good, easy to fuse, but too high, hot iron easy to drip, single-sided welding double-sided formation of the back easy to burn through, forming welding tumor, forming is difficult to control, and joint plastic…
