when welding mild steel when i come to the end of the weld stop power and leave torch over weld till gas stops .but in doing this it blows the weld making a crusty hole what am i doing wrong
thanks
Does your welder have dials, led display or knobs with numbers? There will be ST and PG or similar on there somewhere. Set your slope time and final current to suit and run the post gas for a few seconds after the current has ended.