The TIG welding process; Advantages and applications; Basic TIG welding requirements; TIG welding power sources; Unpulsed/pulsed TIG welding; Hand welding with TIG; Machine TIG welding; Computer and microprocessor control of TIG welding; Exotic and difficult to weld metals; Aluminium welding; Design of weld joints for TIG; Jigs, fixtures and heatsinks for automated TIG welding; Ancillary equipment; Safety; Further developments for TIG welding.