autogenous welding meaning in Hindi

Autogenous welding processes only require part of the existing base metal to be melted and this is sufficient, provided that the joint is already mechanically close-fitting before welding.
The pieces are then welded together usually with one of two processes . autogenous welding-that is welding without filler rod, this is useful when finally smoothing the welding joints as it reduces the amount filing / grinding / linishing needed or almost eliminates it altogether.