This unit describes the performance outcomes required to prepare and weld components using the gas metal arc welding (GMAW) process. It involves preparing for the task, selecting and using GMAW equipment and personal protective equipment (PPE), setting gas flow pressures and welder settings, inspecting and testing weld quality, and completing workplace processes and documentation.
It applies to those working in the automotive service and repair industry.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
Elements
Elements describe the essential outcomes.
Performance Criteria
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.
1. Prepare to carry out basic GMAW welding
1.1 Job requirements are determined from workplace instructions
1.2 PPE is chosen and prepared according to workplace procedures and safety and environmental requirements
1.3 Component and materials to be welded are cleaned and prepared according to workplace and safety requirements
1.4 Hazards associated with the work are identified and risks are managed
1.5 Welding tools and equipment are selected and checked for serviceability
1.6 Work is planned to minimise waste and use time efficiently
2. Weld component using GMAW
2.1 Welding equipment is set up according to workplace procedures
2.2 Welding is carried out using appropriate techniques according to workplace procedures and safety and environmental requirements, and without causing damage to components, systems or equipment
2.3 Welded component is checked to ensure conformity with job requirements
3. Complete work processes
3.1 Final inspection is made to ensure work meets workplace expectations and component is presented ready for use
3.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected and stored
3.3 Tools and equipment are checked, reported if faulty, and stored according to workplace procedures
3.4 Workplace documentation is processed according to workplace procedures
Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:
carry out gas metal arc welding (GMAW) on the following steel sections:
three butt welds, 150 mm long
three fillet welds, 150 mm long
three steel exhaust pipe butt welds.
Individuals must be able to demonstrate knowledge of:
work health and safety (WHS), and occupational health and safety (OHS) requirements relating to carrying out basic GMAW, including procedures for:
selecting and using personal protective equipment (PPE) when working with GMAW equipment, including approved welding helmet
using specialist welding tools and equipment
using protective screens and fume extraction system
manually handling components and GMAW equipment
identifying and controlling hazards
environmental requirements, including procedures for trapping, storing and disposing of waste materials
hazards associated with GMAW, including:
arc eye and exposure to ultraviolet light
molten metal spatter and fire danger
GMAW principles, including:
process of using an electric arc to melt and join metal
basic construction and operation of welding gun and wire feed unit
types and application of welding wire and shielding gases
properties and characteristics of metals to be welded
types of welds, including:
butt welds
fillet welds
tee joints
corner joints
procedures for protecting vehicle electronics during welding
GMAW procedures, including:
component cleaning and preparation
welder current and voltage settings, gas flow rates, wire diameters and wire feed speed
wire stick out distance, gun angle between the work pieces and travel angle
weld testing procedures, including non-destructive testing
Assessors must satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment must include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the basic GMAW they have carried out on components, e.g. work orders.
Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources must be made available:
automotive repair workplace or simulated workplace
workplace instructions
PPE required for GMAW, including approved welding helmet
GMAW welder
steel sections requiring GMAW as specified in the performance evidence
tools, equipment and materials appropriate for carrying out basic GMAW.
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Elements
Elements describe the essential outcomes.
Performance Criteria
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.
1. Prepare to carry out basic GMAW welding
1.1 Job requirements are determined from workplace instructions
1.2 PPE is chosen and prepared according to workplace procedures and safety and environmental requirements
1.3 Component and materials to be welded are cleaned and prepared according to workplace and safety requirements
1.4 Hazards associated with the work are identified and risks are managed
1.5 Welding tools and equipment are selected and checked for serviceability
1.6 Work is planned to minimise waste and use time efficiently
2. Weld component using GMAW
2.1 Welding equipment is set up according to workplace procedures
2.2 Welding is carried out using appropriate techniques according to workplace procedures and safety and environmental requirements, and without causing damage to components, systems or equipment
2.3 Welded component is checked to ensure conformity with job requirements
3. Complete work processes
3.1 Final inspection is made to ensure work meets workplace expectations and component is presented ready for use
3.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected and stored
3.3 Tools and equipment are checked, reported if faulty, and stored according to workplace procedures
3.4 Workplace documentation is processed according to workplace procedures
This section specifies 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. Bold italicised wording, if used in the performance criteria, is detailed below.
Safety and environmental requirements must include:
work health and safety (WHS), and occupational health and safety (OHS) requirements, including procedures for:
selecting and using PPE when working with GMAW equipment, including approved welding helmet
using specialist welding tools and equipment
using protective screens and fume extraction system
manually handling components and GMAW equipment
identifying and controlling hazards
environmental requirements, including procedures for trapping, storing and disposing of waste materials.
Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:
carry out gas metal arc welding (GMAW) on the following steel sections:
three butt welds, 150 mm long
three fillet welds, 150 mm long
three steel exhaust pipe butt welds.
Individuals must be able to demonstrate knowledge of:
work health and safety (WHS), and occupational health and safety (OHS) requirements relating to carrying out basic GMAW, including procedures for:
selecting and using personal protective equipment (PPE) when working with GMAW equipment, including approved welding helmet
using specialist welding tools and equipment
using protective screens and fume extraction system
manually handling components and GMAW equipment
identifying and controlling hazards
environmental requirements, including procedures for trapping, storing and disposing of waste materials
hazards associated with GMAW, including:
arc eye and exposure to ultraviolet light
molten metal spatter and fire danger
GMAW principles, including:
process of using an electric arc to melt and join metal
basic construction and operation of welding gun and wire feed unit
types and application of welding wire and shielding gases
properties and characteristics of metals to be welded
types of welds, including:
butt welds
fillet welds
tee joints
corner joints
procedures for protecting vehicle electronics during welding
GMAW procedures, including:
component cleaning and preparation
welder current and voltage settings, gas flow rates, wire diameters and wire feed speed
wire stick out distance, gun angle between the work pieces and travel angle
weld testing procedures, including non-destructive testing
Assessors must satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment must include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the basic GMAW they have carried out on components, e.g. work orders.
Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources must be made available:
automotive repair workplace or simulated workplace
workplace instructions
PPE required for GMAW, including approved welding helmet
GMAW welder
steel sections requiring GMAW as specified in the performance evidence
tools, equipment and materials appropriate for carrying out basic GMAW.
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice
Yes
No
Comments/feedback
Job requirements are determined from workplace instructions
PPE is chosen and prepared according to workplace procedures and safety and environmental requirements
Component and materials to be welded are cleaned and prepared according to workplace and safety requirements
Hazards associated with the work are identified and risks are managed
Welding tools and equipment are selected and checked for serviceability
Work is planned to minimise waste and use time efficiently
Welding equipment is set up according to workplace procedures
Welding is carried out using appropriate techniques according to workplace procedures and safety and environmental requirements, and without causing damage to components, systems or equipment
Welded component is checked to ensure conformity with job requirements
Final inspection is made to ensure work meets workplace expectations and component is presented ready for use
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected and stored
Tools and equipment are checked, reported if faulty, and stored according to workplace procedures
Workplace documentation is processed according to workplace procedures
Job requirements are determined from workplace instructions
PPE is chosen and prepared according to workplace procedures and safety and environmental requirements
Component and materials to be welded are cleaned and prepared according to workplace and safety requirements
Hazards associated with the work are identified and risks are managed
Welding tools and equipment are selected and checked for serviceability
Work is planned to minimise waste and use time efficiently
Welding equipment is set up according to workplace procedures
Welding is carried out using appropriate techniques according to workplace procedures and safety and environmental requirements, and without causing damage to components, systems or equipment
Welded component is checked to ensure conformity with job requirements
Final inspection is made to ensure work meets workplace expectations and component is presented ready for use
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected and stored
Tools and equipment are checked, reported if faulty, and stored according to workplace procedures
Workplace documentation is processed according to workplace procedures
Forms
Assessment Cover Sheet
AURVTW009 - Carry out basic gas metal arc welding
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
AURVTW009 - Carry out basic gas metal arc welding
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent