MEM05073 Perform advanced welding using gas metal arc welding process

Release: 1

MEM05073 Perform advanced welding using gas metal arc welding process

Modification History

Release 1. Unit code changed. Changes to prerequisites, performance evidence and knowledge evidence. Supersedes and is not equivalent to MEM05018 Perform advanced welding using gas metal arc welding process.

Application

This unit of competency has been developed for engineering fabrication trade training and the recognition of trade skills in advanced welding using gas metal arc welding.

It defines the skills and knowledge required to plan, prepare for, and carry out advanced welding using gas metal arc welding (GMAW) where the weld would be required to conform to AS 1554 Structural Purpose (SP) or equivalent national or international standards or codes as defined in the unit in combination with its prerequisites.

Where the welding associated with this unit also requires advanced manual thermal cutting, gouging and shaping, the unit MEM05071 Perform advanced manual thermal cutting, gouging and shaping must also be selected. Where the welding associated with this unit also requires the application of welding to codes and standards, the unit MEM05062 Apply welding and welding related codes and standards must be selected. Where the welding associated with this unit also requires the welding to be undertaken according to a formal welding procedure specification, the unit MEM05068 Apply weld procedure specifications must also be selected. Where formal weld records associated with the application of this unit are required to be maintained, the unit MEM05065 Maintain weld records must also be selected.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Band: A

Unit Weight: 4

Pre-requisite Unit

MEM05007 Perform manual heating and thermal cutting

MEM05050 Perform routine gas metal arc welding

MEM05052 Apply safe welding practices

MEM05085 Select welding processes

MEM05091 Weld using gas metal arc welding process

MEM09002 Interpret technical drawing

MEM11011 Undertake manual handling

MEM12023 Perform engineering measurements

MEM12024 Perform computations

MEM13015 Work safely and effectively in manufacturing and engineering

MEM14006 Plan work activities

MEM16006 Organise and communicate information

MEM18001 Use hand tools

MEM18002 Use power tools/hand held operations

Competency Field

Fabrication

Elements and Performance Criteria

Elements	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 including relevant standards and codes from specifications, drawings, job sheets or work instructions
2. Prepare materials for welding	2.1 Prepare materials to achieve required weld requirements 2.2 Assemble and/or align materials to specification in accordance with SOPs
3. Select, assemble and set up welding equipment and consumables	3.1 Identify and select welding equipment and electrodes, accessories and consumables appropriate to material 3.2 Assemble and set up alternating current (AC) or direct Current (DC) welding equipment
4. Weld joints to specifications using GMAW	4.1 Apply appropriate distortion prevention measures 4.2 Ensure weld deposit is to specifications 4.3 Clean joints to specifications 4.4 Rectify any distortion using appropriate techniques
5. Ensure weld conformance	5.1 Inspect weld joints visually for conformance to specifications 5.2 Rectify any weld crack or defect with minimum loss of sound metal using correct techniques and tools 5.3 Complete weld records in accordance with SOPs

Foundation Skills

This section describes those language, literacy, numeracy and employment skills that are essential to performance but not explicit in the performance criteria.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range of Conditions

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:	fillet and butt weld carried out in all positions.
Materials include one or more of the following:	low carbon cast iron stainless and low alloy steel aluminium and aluminium alloys.
Welding equipment includes:	gases, settings, wire electrodes and related equipment selected in accordance with welding procedure.
Preparation includes one or more of the following:	pre-heating setting up of jigs, fixtures, clamps joint preparation.
Distortion prevention measures include one or more of the following:	pre-heating setting up of jigs fixtures, clamps.
Rectify includes the use of one or more of the following:	oxy acetylene air arc equipment grinding devices.
Weld cracks or defects include one or more of the following:	porosity slag inclusions discontinuities lack of penetration undercut.

Unit Mapping Information

No equivalent unit.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b7050d37-5fd0-4740-8f7d-3b7a49c10bb2