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Elements and Performance Criteria

1. Prepare welding materials and equipment
   • Welding equipment is prepared.
   • Welding equipment is assembled and adjusted correctly and safely.
   • Materials are prepared to achieve required weld specification.
2. Weld joints to code requirements using advanced GMAW
   • Weld requirements are interpreted correctly.
   • Welds are deposited correctly to specifications.
   • Appropriate distortion prevention measures are selected and distortions are rectified as required.
3. Assess weld quality and rectify faults
   • Weld joints are visually inspected against specifications.
   • Defects are removed using appropriate methods for the given task..
   • Weld records are correctly completed and maintained.

Required Skills

Required skills

Look for evidence that confirms skills in welding to conform to Australian Standard Structural Purpose Bureau Det Norse Verticas or equivalent performing safe welding practices using and applying personal protective equipment for GMAW interpreting weld requirements and specifications entering information onto proformas and standard workplace forms interpreting technical drawings and weld specifications relating to advanced GMAW using hand and power tools to prepare and weld material using GMAW using measurement and numeracy skills relating to advanced GMAW and preparation selecting equipment and consumables appropriate to the task using visual identification of faultsdefects

Required knowledge

Look for evidence that confirms knowledge of indepth knowledge of the properties and characteristics of a wide range of materials requirements to conform to Australian Standard Structural Purpose Bureau Det Norse Verticas or equivalent weld procedures and requirements different welder identification systems such as numbering bar coding paint coding letter stamps safe welding practices use and application of personal protective equipment for GMAW

Evidence Required

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	A person who demonstrates competency in this unit must be able to prepare materials select and set up the welding equipment carry out advanced GMAW inspect for and correct defects and maintain the weld records Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Context of and specific resources for assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with performing advanced welding using gas metal arc welding process or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Guidance information for assessment

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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.
Welding equipment	AC or DC welding machines, settings, electrodes and related equipment
Preparing materials	Preheating, setting up of jigs, fixtures, clamps, etc., joint preparation e.g. bevelling
Materials	Low carbon, cast iron, stainless and low alloy steel, aluminium and aluminium alloys
Welds	Fillet and butt in all positions
Distortion prevention measures	Preheating, setting up of jigs, fixtures, clamps, etc.
Defects	Porosity, slag inclusions, discontinuities, lack of penetration, undercut
Appropriate methods	Oxy acetylene arc equipment, grinding devices
Weld records	Proformas and other standard workplace forms

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