1220.0 - Australian Standard Classification of Occupations (ASCO) Second Edition, 1997  
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 31/07/1997   
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4122-13 Pressure Welder

Assembles, welds and repairs pressure vessels and pipes to pressure test standards.

Skill Level:
The entry requirement for this occupation is an AQF Certificate III or higher qualification. Registration or licensing may be required.

Tasks Include:

  • studies drawings or specifications to determine job requirements
  • cleans and prepares metal surfaces by gouging, bevelling, grinding or filing
  • cuts metal shapes using thermal cutting equipment
  • aligns surfaces to be joined and secures by tack-welding or jigging
  • selects welding techniques appropriate to type and thickness of metal
  • connects electrode holders to power sources and adjusts controls on electrode holders or welding equipment to regulate currents
  • forms arcs which generate heat to melt metal from electrodes, and deposits metal on workpieces to fuse joints
  • guides electrodes along weld lines
  • cleans and smooths welds by filing, chiselling or grinding, and examines welds for width of bead, penetration and precision
  • cuts metal shapes using thermal cutting equipment
  • may weld mild steel, alloy steel, stainless steel, aluminium and copper

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