Application

This unit of competency was developed for post trade engineering fabrication training and the recognition of post trade engineering fabrication skills in developing welding procedure specifications (WPS) to support welding operations undertaken to meet Australian and international welding standards and codes or where welding to a WPS is mandated as part of the work requirement.

The unit scope includes the required underpinning welding and metallurgical skills and knowledge of relevant welding standards, welding terminology and welder qualification requirements as defined in the unit in conjunction with its prerequisites.

The unit is intended to apply in occupations such as welding supervisors, welding engineers, welding inspectors and professional and technical employees that require a detailed knowledge of how WPSs are developed and maintained.

Where the conduct of non-destructive testing (NDT) is required, relevant NDT units must also be selected.

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

What You'll Learn

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include the ability to:

interpret technical drawings

apply requirements of relevant standards and codes to designs incorporating welding and associated processes

produce sketches showing joint configuration including weld dimensions, weld preparation, weld position or number, material type and grade for inclusion in welding procedure specification (WPS)

assess pre-approved procedure qualification records (PQRs) and WPSs and consumables for suitability to a current design

supervise the welding of test pieces including:

determining the number and type of test piece required for at least two ferrous and two non-ferrous designs and their nominated standards or codes

measuring and recording of welding parameters used during welding of test pieces

arrange for any required witnessing of welding of test pieces

produce PQRs and WPSs covering:

ferrous and non-ferrous welding

manual metal arc welding (MMAW), gas metal arc welding (GMAW), tungsten inert gas (TIG), submerged arc, flux cored and oxy welding processes

welds to AS1554 Structural Purpose

at least one international welding standard

file PQRs and WPSs to a welding library.

Note: Where a volume and/or frequency is not specified, demonstration must be provided at least once

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:

factors that influence the quality of fusion welds in steels

the characteristics of commonly-used welding processes

technical drawings and welding symbols

set up for the inspection of welds, macrosections and other mechanical tests

the effects that material departure from specification has on weld quality

procedures for production of test pieces for welding related non-destructive tests (NDTs)

types of welding related to NDT and their application

arithmetic operations, formulae and calculations for testing welding and/or fabrications

procedures for:

organising weld tests and obtaining previous weld tests

verifying/amending previously established weld test procedures

documenting welding procedures and preparing a weld test piece

information to be covered in a WPS including:

procedure number

process type

consumable size, type and full codification

consumable baking requirement if applicable

parent material grade and specification

plate or pipe thickness range

pipe diameter range

welding position

joint fit up, preparation, cleaning, dimensions etc.

backing strip, back gouging information

pre-heat (including minimum temperature and method)

interpass if required and recording of maximum temperature recorded

post weld heat treatment if required including time and temperature

welding technique (weaving, max run width etc.)

arc energy limits and their correct application

welding current and polarity

arc voltage

pulse parameters

wire feed speed

wire configuration

welding electrode types and their use

welding gases for shielding, fuel and purging

fluxes

torch and nozzle types and applications.

Assessment Conditions

Assessors must:

have vocational competency in developing and maintaining welding procedures 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 replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires.

Assessment must occur in a functioning workplace. Where assessment in the workplace would be unsafe, impractical or threatens the environment, assessment must occur in a sufficiently rigorous simulated environment that reflects the circumstances that would be experienced in a functioning workplace. Assessment must cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.

Knowledge assessment may be either verbal or written but must adequately reflect the knowledge requirements of the unit in a functioning workplace.

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.

Foundation Skills

• text: This section describes those language, literacy, numeracy and employment skills that are essential to performance. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

• {'code': 'MEM05061', 'title': 'Apply basic metallurgy principles to welding applications'}
• {'code': 'MEM05078', 'title': 'Apply welding principles'}
• {'code': 'MEM05085', 'title': 'Select welding processes'}
• {'code': 'MEM11011', 'title': 'Undertake manual handling'}
• {'code': 'MEM12023', 'title': 'Perform engineering measurements'}
• {'code': 'MEM12024', 'title': 'Perform computations'}
• {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
• {'code': 'MEM14006', 'title': 'Plan work activities'}
• {'code': 'MEM16006', 'title': 'Organise and communicate information'}
• {'code': 'MEM05060', 'title': 'Perform welds to code standards using submerged arc welding process'}
• {'code': 'MEM05079', 'title': 'Perform welds to code standards using flux core arc welding process'}
• {'code': 'MEM05080', 'title': 'Perform welds to code standards using gas metal arc welding process'}
• {'code': 'MEM05081', 'title': 'Perform welds to code standards using gas tungsten arc welding process'}
• {'code': 'MEM05082', 'title': 'Perform pipe welds to code standards using manual metal arc welding process'}
• {'code': 'MEM05083', 'title': 'Perform welds to code standards using manual metal arc welding process'}
• {'code': 'MEM05088', 'title': 'Perform welds to code standards using oxy fuel gas welding process'}

Parent Qualifications

• MEM40119 — Certificate IV in Engineering
  MEM

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