Elements

Performance Criteria

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section

1. Plan and prepare

1.1 Work order, job specification and resources are identified and inspected for compliance

1.2 Welding standards are identified

1.3 Weld specifications are identified from job sheets and work instructions

1.4 Weld size, type, sequence and quantity of materials are identified

1.5 Welding plan is prepared

1.6 Work area is prepared, and potential hazards identified according to workplace procedures

2. Weld materials

2.1 Workplace procedures are identified and followed

2.2 Welding equipment is set and used according to operating procedures

2.3 Distortion prevention measures are identified and adjusted if required

2.4 Welding equipment is set and used according to operating procedures

2.5 Test runs are conducted according to work instructions and quality requirements

2.5 Materials are welded using GTAW process to required specifications

3. Check welds

3.1 Weld specifications and quality requirements are confirmed by non-destructive visual inspection

3.2 Weld defects are identified and prepared for re-welding, and appropriate personnel are notified

4. Complete job

4.1 Welds are cleaned using appropriate techniques according to work instruction

4.2 Work area is cleaned and cleared of waste according to workplace procedures

4.3 GTAW equipment is cleaned, maintained and stored according to workplace procedures

4.4 Faulty equipment is identified, tagged and reported

4.5 Work sheets are completed according to workplace procedures

Skills

Description

Reading skills to:

interpret work health and safety (WHS) requirements, workplace procedures and work instructions

interpret weld plans and weld inspection reports

interpret GTAW operating instructions

interpret welding standards

understand weld specifications

recognise safe operating procedures.

Writing skills to:

complete welding plan

legibly complete work sheets and inspection reports

prepare weld repair plan

complete faulty equipment tags.

Oral communication skills to:

inform team members of suitable welding methods

confirm GTAW and production requirements

present rectification options.

Numeracy skills to:

identify and set GTAW machine settings

measure material from job specifications

calculate material requirements

calculate welding time.

Digital literacy skills to:

set electronic welding equipment.

Planning and organising skills to:

prepare work area, welding equipment, materials and job specifications

manage job outcomes and production time.

Problem-solving skills to:

identify weld defects.

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.

Resources must include:

argon shielding gas

filler rods

gas nozzles

stainless steel, mild steel and aluminium materials

standard and inverter GTAW

materials and equipment for preventing distortion during welding, including braces, clamps, jigs and fixtures

tungsten electrodes

welding shields

materials and equipment for non-destructive testing of welds

workplace welding standards and WHS requirements relevant to the work being performed.

Workplace procedures must include:

operating procedures of GTAW equipment

procedures for recording and reporting GTAW processes

WHS and environmental requirements relating to GTAW procedures.