Modification History
Release 1 - New unit of competency
Unit Descriptor
This unit involves the skills and knowledge required to weld rail on tram/light rail systems using a submerged arc welding process.
It covers preparing materials, selecting and setting up welding equipment, carrying out submerged arc welding, inspecting for and correcting defects, and maintaining weld records.
Licensing or certification requirements are not applicable to this unit.
Application of the Unit
Welds would mainly involve building up or pad welding on longer lengths of rail on tram/light rail systems. It covers welding both the rail head and the check rail. The weld quality is not measured against any Australian Standards.
Licensing/Regulatory Information
Not applicable.
Pre-Requisites
Not applicable.
Employability Skills Information
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 required performance needed to demonstrate achievement of the element. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 Prepare materials for welding |
1.1 Weld requirements are identified from specifications and/or technical drawings 1.2 Material is correctly prepared using tools and techniques appropriate to the material and process 1.3 Materials are assembled/aligned to specifications, where required 1.4 Track is measured prior to commencement of welding |
2 Select welding machine settings and consumables |
2.1 Welding machine settings and consumables are identified from job requirements, welding procedures, specifications and/or technical drawings |
3 Assemble and set up welding equipment |
3.1 Welding equipment is assembled and set up safely and correctly to standard operating procedures 3.2 Any defective equipment is tagged and replaced in accordance with organisational and/or manufacturer specifications |
4 Weld rail using submerged arc process |
4.1 Pad, butt and fillet welds are deposited correctly in flat, and fillet welds in horizontal position, to specification 4.2 Joints are cleaned to specifications using techniques and tools appropriate to the defect, material and process |
5 Inspect welds and correct faults |
5.1 Weld joints are visually inspected against specifications 5.2 Track is measured to ensure welded track is within accepted tolerances 5.3 Weld defects are identified and remedial action is taken, where required 5.4 Defects are removed with minimum loss of sound metal using techniques and tools appropriate to the defect, material and process |
6 Maintain weld records as required |
6.1 Weld records are maintained in accordance with organisational procedures |
Required Skills and Knowledge
This section describes the knowledge and skills required for this unit. |
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Required skills: |
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Evidence Guide
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required knowledge and skills, the range statement and the assessment guidelines for this Training Package. |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
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Context of and specific resources for assessment |
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Method of 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. |
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Work may involve exposure to: |
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Basic track measurements may include: |
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Measuring equipment may include: |
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Materials may include: |
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Track layout may include: |
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Communication equipment may include: |
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Depending on work context, safety and personal protective equipment may include: |
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Information/documents may include: |
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Applicable regulations and legislation may include: |
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Unit Sector(s)
Not applicable.
Competency Field
W – Equipment and Systems Operations