Application
This unit of competency defines the skills and knowledge required to perform flame powder spraying, on a range of heavy or light materials and applies to welding of materials using powder spraying equipment where powders are fed through the flame and are deposited onto the surface to be built up or joined.
Weld quality could include welding that conforms to Australian Standard 1554 General Purpose and American Bureau of Shipping (ABS) or equivalent.
For remedial action using machining processes other than grinding with grinding wheels (ceramic or other) appropriate machining units should also be selected.
No licensing, legislative or certification requirements apply to this unit at the time of publication.
Band: A
Unit Weight: 4
Elements and Performance Criteria
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. | ||
1 | Determine job requirements | 1.1 | Follow standard operating procedures (SOPs) |
1.2 | Comply with work health and safety (WHS) requirements at all times | ||
1.3 | Use appropriate personal protective equipment (PPE) in accordance with SOPs | ||
1.4 | Identify job requirements from specifications, sketches, job sheets or work instructions | ||
2 | Prepare work for spray welding | 2.1 | Prepare materials to achieve the required weld requirements |
2.2 | Assemble/align work to specifications, as required | ||
3 | Select, assemble and set up spray welding equipment and powders | 3.1 | Select appropriate spray welding equipment and consumables for materials and work requirements |
3.2 | Ensure powder flame spray welding equipment is in safe working condition | ||
3.3 | Assemble welding equipment and set up in accordance with SOPs | ||
3.4 | Adjust gas setting on spray welding equipment to task requirements | ||
4 | Minimise and rectify distortion | 4.1 | Identify distortion prevention/control measures |
4.2 | Apply appropriate distortion prevention/control measures to minimise and rectify distortion | ||
4.3 | Deposit spray weld to specification | ||
5 | Inspect spray weld | 5.1 | Inspect weld area/joints visually against specification |
5.2 | Rectify any weld defects with minimum loss of sound metal using correct techniques and tools | ||
Foundation Skills
This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.
Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.
Range Statement
This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. | |
Welds include the following: | fillet butt |
Weld positions include the following: | horizontal vertical overhead |
Materials include one (1) or more of the following: | steels carbon steels cast iron non-metallic materials (plastic/nylon) |
Equipment includes the following: | gas cylinders hoses blowpipes tips and nozzles regulators flashback arrestors |
Preparation and distortion prevention include one (1) or more of the following: | pre-heating setting up: jigs fixtures clamps joint preparation |
Rectify includes the use of one (1) or more of the following: | oxy acetylene air arc equipment grinding devices |
Defects include one (1) or more of the following: | porosity slag inclusions discontinuities lack of penetration undercut |
Competency Field
Fabrication