Unit of competency details

AURV281308A - Carry out gas metal arc (MIG) welding procedures (Release 1)


Usage recommendation:
Is superseded by and equivalent to AURVTW2003 - Carry out gas metal arc welding procedures 16/Jan/2013

Release Status:
ReleaseRelease date
1 1 (this release) 21/Jun/2011

Training packages that include this unit

Qualifications that include this unit

AUR31311 - Certificate III in Automotive Engine ReconditioningCertificate III in Automotive Engine Reconditioning
AUR31205 - Certificate III in Automotive Retail, Service and RepairCertificate III in Automotive Retail, Service and Repair1-2 
AUR30911 - Certificate III in MotorsportCertificate III in Motorsport1-2 
AUR30805 - Certificate III in Automotive Vehicle BodyCertificate III in Automotive Vehicle Body1-2 
AUR30711 - Certificate III in Outdoor Power EquipmentCertificate III in Outdoor Power Equipment1-2 
AUR30611 - Certificate III in Automotive SpecialistCertificate III in Automotive Specialist
AUR30605 - Certificate III in Automotive SpecialistCertificate III in Automotive Specialist
AUR30511 - Certificate III in MarineCertificate III in Marine
AUR30405 - Certificate III in Automotive Mechanical TechnologyCertificate III in Automotive Mechanical Technology1-2 
AUR30308 - Certificate III in Automotive Electrical TechnologyCertificate III in Automotive Electrical Technology1-2 
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SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030509 Automotive Body Construction  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 030509 Automotive Body Construction  25/Mar/2009 
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Modification History

Not Applicable

Unit Descriptor

Unit descriptor 

This unit of competency covers the skills and knowledge required to carry out gas metal arc (MIG) welding procedures appropriate to the repairs conducted in the retail, service and repair streams.

Application of the Unit

Application of the unit 

Work requires individuals to demonstrate some discretion, judgement and problem solving skills in lifting, safety equipment, MIG welding procedures, environmental issues, repair procedures and vehicle operational requirements.

Licensing/Regulatory Information

Not Applicable


Prerequisite units 

Employability Skills Information

Employability skills 

This unit contains employability skills.

Elements and Performance Criteria Pre-Content

Elements describe the essential outcomes of a unit of competency.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide.

Elements and Performance Criteria



1. Prepare for work

1.1. Work instructions are used to determine job requirements including job sheets, quality and quantity of materials.

1.2. Job specifications are read and interpreted.

1.3. Workplace health and safety requirements, including personal protection needs, are observed throughout the work.

1.4. Materials for repairs and replacements are selected and inspected for quality.

1.5. Correct hand, power tools and safety equipment for safe use.

1.6. Products are determined to minimise waste materials.

1.7. Procedures are identified for maximising energy efficiency whilst completing the job.

2. Carry out gas metal arc (MIG) welding procedures

2.1. Gas metal arc (MIG) welding procedures are completed without causing damage to any component or system.

2.2. Information is accessed from appropriate sources to enable welding to be performed in accordance with vehicle and equipment manufacturer procedures.

2.3. MIG welding is carried out according to a standard that meets industry regulations/guidelines, OHS legislation, statutory legislation and enterprise policy/procedures.

3. Clean up work area and maintain equipment

3.1. Material that can be reused is collected and stored.

3.2. Waste and scrap is removed following workplace procedures.

3.3. Equipment and work area are cleaned and inspected for serviceable conditions in accordance with workplace procedures.

3.4. Unserviceable equipment is tagged and faults identified in accordance with workplace.

3.5. Operator maintenance is completed in accordance with manufacturer's specifications and site procedures.

3.6. Tooling is maintained in accordance with workplace procedures.

Required Skills and Knowledge


This section describes the skills and knowledge required for this unit.

Required skills 

Required skills include:

  • apply research and interpretive skills sufficient to locate, interpret and apply manufacturer/component supplier procedures, workplace policies and procedures
  • apply analytical skills required for the identification and analysis of technical information
  • apply plain English literacy and communication skills in relation to dealing with customers and team members
  • apply questioning and active listening skills for example when obtaining information from customers
  • apply oral communication skills sufficient to convey information and concepts to customers
  • apply planning and organising skills to own work activities, including making good use of time and resources, sorting out priorities and monitoring one's own performance
  • interact effectively with other persons both on a one-to-one basis and in groups, including understanding and responding to the needs of a customer and working effectively as a member of a team to achieve a shared goal
  • establish safe and effective work processes which anticipate and/or resolve problems and downtime, to systematically develop solutions to avoid or minimise reworking and wastage
  • use mathematical ideas and techniques to calculate time, assess tolerances, apply accurate measurements, calculate material requirements and establish quality checks
  • use workplace technology related to welding systems, including the use of measuring equipment and communication devices and the reporting/documenting of results

Required knowledge 

Required knowledge includes:

  • OHS regulations/requirements
  • equipment safety requirements
  • personal safety requirements (e.g. toxic fumes/lead poisoning)
  • types of materials to be welded
  • types of MIG welding wire and their application
  • types of gases and their application
  • MIG welding processes, techniques and faults
  • equipment set up and maintenance procedures
  • workplace safety policies and procedures
  • workplace guidelines regarding acceptable tolerance levels to be considered as per job sheet and manufacturer specification
  • procedures for reporting faults and material defects

Evidence Guide


The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment 

Critical aspects for assessment and evidence required to demonstrate competency in this unit 

  • Interpret work order and locate and apply relevant information.
  • Apply safe handling requirements for equipment, products and materials, including use of personal protective equipment.
  • Read and interpret communication procedural information from job sheets to prepare for work.
  • Identify materials used in the work process.
  • Follow work instructions, operating procedures and inspection processes to:
  • minimise the risk of injury to self or others
  • prevent damage and wastage of goods, equipment and products
  • maintain required production output and product quality
  • Identify, set up, operate and maintain MIG welding, lifting and measuring equipment.

Context of , and specific resources for assessment 

  • Assessment may occur on the job or in a workplace simulated facility with relevant process equipment, materials, work instructions and deadlines.
  • Access to vehicle and manufacturer specifications as identified in the Range Statement and standard operating procedures.

Method of assessment 

  • Assessment methods must confirm consistency of performance over time and in a range of workplace relevant contexts.
  • Assessment should be by direct observation of tasks and questioning on underpinning knowledge.
  • Assessment should be conducted over time and may be in conjunction with assessment of other units of competency.
  • Competence in this unit may be assessed in conjunction with other functional units which together form part of the holistic work role.

Guidance information for assessment 

Range Statement


The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

MIG welding 

MIG equipment to include

  • MIG welders


Materials include:

  • MIG welding wire and gas


Methods include:

  • MIG welding methods and preparation.

Methods should be applied under normal operating conditions

Work practices 

Work practices must abide by:

  • workplace health and safety requirements include OHS legislation, material safety management systems, hazardous substances and dangerous goods code, local safe operating procedures and Australian Design Rules regulations
  • work is carried out in accordance with legislative obligations, environmental legislation, relevant health regulations, manual handling and lifting equipment procedures and organisation insurance requirements


Resources may include:

  • hand tools, MIG welding machines and safety equipment
  • measuring equipment, marking out equipment and lifting equipment
  • MIG welding wire and appropriate gases

Personal protective equipment 

Personal protective equipment is to include that prescribed under legislation, regulations and enterprise policies and practices

Information /documents 

Sources of information/documentation may include:

  • workplace procedures relating to the use of tools and equipment
  • work instructions, including:
  • job sheets
  • vehicle manufacturer specifications
  • enterprise operating procedures
  • component manufacture specifications
  • customer requirements
  • industry/workplace codes of practice
  • statutory legislation for vehicle road worthiness, including Australian Design Rules
  • material safety data sheets
  • workplace procedures relating to reporting and communication
  • manufacturer specifications and operational procedures

Unit Sector(s)

Unit sector 

Vehicle body

Co-requisite units

Co-requisite units 

Competency field

Competency field