Neutral flame
Carburising flame
Oxidising flame
Oxy-hydrogen flame
AC welding
DC Reverse polarity
DC straight polarity
Welding with long arc
Peening
Arc blow
Distortion
Metal force
Skip welding
Back step welding
Right hand welding
Intermittent welding
Use large size electrode
Use small size electrode
Use few passes with large dia electrode
Use more passes with small electrode