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4122-15 Welder (First Class)
Fabricates and repairs metal products by welding metals.
Skill Level :
The entry requirement for this occupation is an AQF Certificate III or higher qualification
Registration or licensing may required.
Tasks Include :
l Studies blueprints, drawings or specifications to determine appropriate welding processes and other job requirements
l Cleans and prepares metal surfaces for welding by flame-cutting, thermal cutting, gouging, beveling, grinding or filing
l Preheats thick materials to required temperatures
l Fits attachments, connects hoses to gas tanks, or wires to power sources of equipment used in welding operations
l Adjusts controls to regulate gas pressure, voltage or amperage
l Opens valves or switches and lights torches, strikes arcs or starts machines
l Guides torches or electrodes along lines of weld manually or by operating machine controls
l Cleans and smoothes welds by filing, chiseling or grinding
l Cuts metal shapes using flame and thermal cutting torches
l May set up welding machines for other operators
Specializations:
Special Class Welder
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 required.
Tasks Include :
l Studies drawings or specifications to determine job requirements
l Cleans and prepares metal surfaces by gouging, beveling, grinding or filing
l Cuts metal shapes using thermal cutting equipment
l Aligns surfaces to be joined and secures by tack-welding or jigging
l Selects welding techniques appropriate to type and thickness of metal
l Connects electrode holders to power sources and adjusts controls on electrode holders or welding equipment to regulate currents
l Forms arcs which generate heat to melt metal from electrodes, and deposits metal on work pieces to fuse joints
l Guides electrodes along weld lines
l Cleans and smoothes welds by filing, chiseling or grinding, and examines welds for width of bead, penetration and precision
l Cuts metal shapes using thermal cutting equipment
l May weld mild steel, stainless steel, aluminum and copper
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