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Unit of competency details

MEM05093 - Weld using submerged arc welding process (Release 1)

Summary

Usage recommendation:
Current
Mapping:
MappingNotesDate
Supersedes and is equivalent to MEM05023 - Weld using submerged arc welding process 18/Dec/2022

Release Status:
Current
Releases:
ReleaseRelease date
1 1 (this release) 19/Dec/2022

Companion volumes:
Unit of competency Assessment requirements

Delivery:
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Classifications

SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030711 Boilermaking And Welding  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 030711 Boilermaking And Welding  19/Dec/2022 
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Unit of competency

Modification History

Release 1. Supersedes and is equivalent to MEM05023 Weld using submerged arc welding process.

Application

This unit of competency defines the skills and knowledge required to carry out submerged arc welding (SAW) where the welds are more likely to be associated with heavy rather than with light fabrication.

Weld quality must conform to AS 1554 General Purpose (GP) or equivalent.

Where the interpretation of technical drawings is required unit MEM09002 Interpret technical drawing should also be selected.

Where the selection and use of tools is required, the unit MEM18001 Use hand tools and the unit MEM18002 Use power tools/hand held operations, must also be selected as appropriate.

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

Band: A 

Unit Weight: 4 

Pre-requisite Unit

MEM05052 Apply safe welding practices

MEM05057 Perform routine submerged arc welding

MEM05085 Select welding processes

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 from specifications, sketches, 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 specifications in accordance with SOPs

3. Select, assemble and set up welding equipment and consumables

3.1 Identify and select welding machine settings and consumables from job requirements, welding procedures and specifications and/or technical drawings

3.2 Assemble and set up direct current (DC) welding equipment

3.3 Undertake test runs and verify in accordance with specifications

4. Minimise and rectify distortion

4.1 Apply appropriate distortion prevention measures

4.2 Rectify any distortion using appropriate techniques

5. Weld joints using submerged arc by correct process

5.1 Deposit pad, butt and fillet welds in flat, and fillet welds in horizontal position, to specification

5.2 Clean joints to specifications using techniques and tools appropriate to defect, material and process

6. Ensure weld conformance

6.1 Inspect weld joints visually for conformance to specifications

6.2 Rectify any weld defects with minimum loss of sound metal using correct techniques and tools

6.3 Maintain weld records in accordance with SOPs

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 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 in flat and horizontal positions.

Materials include:

carbon and stainless steel.

Preparation includes one or more of the following:
  • pre-heating
  • setting up of jigs, fixtures and clamps
  • joint preparation.

Distortion prevention measures include one or more of the following:
  • pre-heating
  • setting up of jigs
  • fixtures and clamps.

Rectify includes the use of one or more of the following:
  • oxy acetylene
  • air arc equipment
  • grinding devices.

Defects include one or more of the following:
  • porosity
  • slag inclusions
  • discontinuities
  • lack of penetration
  • undercut.

Unit Mapping Information

Release 1. Supersedes and is equivalent to MEM05023 Weld using submerged arc welding process.

Links

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

 

Assessment requirements

Modification History

Release 1. Supersedes and is equivalent to MEM05023 Weld using submerged arc welding process.

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two occasions and include:

  • following work instructions, standard operating procedures (SOPs) and safe work practices
  • identifying and interpreting specifications from drawings, sketches and verbal or written job instructions for welding using submerged arc welding (SAW) process to AS 1554 General Purpose (GP) or equivalent
  • selecting appropriate weld and joint preparation methods
  • consistently weld materials to the specified standard or equivalent using direct current (DC) welding machines and electrodes while preventing distortion
  • rectifying any defects
  • completing and maintaining weld records related to SAW welding onto standard workplace forms.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

  • safe welding practices and procedures and use of personal protective equipment (PPE)
  • main types of fluxes and flux/wire combinations
  • typical applications of SAW and common materials
  • application of weld metal transfer (short arc and spray)
  • material preparation
  • joint preparations
  • electrode classification
  • causes of distortion for materials
  • causes of defects and methods of rectification
  • requirements of AS 1554 GP or equivalent.

Assessment Conditions

  • Assessors must:
  • have vocational competency in welding using SAW process at least to the level being assessed with relevant industry knowledge and experience
  • satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacementand comply with the National Vocational Education and Training Regulator Act 2011, its replacementor equivalent legislation covering VET regulation in a non-referring state/territory as the case requires.
  • Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.
  • Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications.
  • Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Links

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

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