Arc blow in #welding

in welding any type of joint and in whatever position it may be magnetic disturbance of the Ark more commonly known as Arc blow is present to some extent when the disturbance is excessive it becomes very difficult to control the molten pool to produce good uniform Wells the operator is forced to fight Arc blow and the work usually suffers in quality when direct current is used for welding Arc blow is likely to become excessive on work in corners and is particularly Troublesome at the beginning and end of joints