- MEM05015D - Weld using manual metal arc welding process
Assessor Resource
MEM05015D
Weld using manual metal arc welding process
Assessment tool
Version 1.0
Issue Date: June 2024
This unit of competency applies to welds associated with heavy or light metal fabrications. Welds are fillet and butt welds in all positions on a range of ferrous and non-ferrous materials that may include carbon steel or stainless steel. Weld quality would conform to Australian Standard 1554 General Purpose, American Bureau of Shipping (ABS) or equivalent.
This unit has been primarily developed for Engineering Tradesperson - Fabrication apprenticeship training and the recognition of trade level skills in MMAW. It may also apply to other trade occupations requiring higher level MMAW welding skills.
Where manual thermal processes associated with preparation, pre-heat and/or post-heat are required, MEM05007C Perform manual heating and thermal cutting and/or MEM05008C Perform advanced manual thermal cutting, gouging and shaping should be considered for selection.
Band: A
Unit Weight: 4
This unit of competency covers the preparation, positioning, fixing, and manual welding techniques associated with general trade level welding using manual metal arc welding (MMAW) equipment including the selection and set up of the equipment appropriate to both the material and the weld to be performed, carrying out the MMAW to prescribed standards, and examining for and correcting defects, in a range of welded fabrications.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Path 1
MEM05012C
Perform routine manual metal arc welding
MEM05051A
Select welding processes
MEM05052A
Apply safe welding practices
MEM12023A
Perform engineering measurements
MEM18001C
Use hand tools
MEM18002B
Use power tools/hand held operations
Employability Skills
This unit contains employability skills.
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.
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 MMAW and examine for and correct defects, in a range of welding activities associated with MMAW. Competency in this unit cannot be awarded 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 apply the skills covered in this unit of competency in new and different workplace situations and contexts. Critical aspects of assessment and evidence include: following all safety procedures to protect self, other workers and members of the public identifying and interpreting specifications for MMA welding including Australian Standard 1554 General Purpose interpreting welding specifications including standard welding symbols used to show weld procedure selecting appropriate weld preparation methods for material and position of welds. preparing materials, setting up of jigs, fixtures, clamps,etc. and joint preparation including bevelling consistently welding different ferrous and non-ferrous materials to AS 1554 General Purpose or equivalent identifying defects as described in the range statement across a range of welded materials rectifying defects. |
Context of and specific resources for assessment | Welding to AS 1554 General Purpose or equivalent requires both theoretical knowledge and high level practical skills. The assessment process must be designed to identify consistent performance to the standard and the specifications across a range of materials and positions. The assessment must also identify a level of workplace performance in terms of defect rates and weld failure rates. It is recommended that assessment involve demonstrations of competency under both workshop and site conditions. This means that the ideal assessment environment is either on the job or a combination of both on and off the job. The competencies covered by this unit may be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate. |
Method of assessment | Typically an Engineering Tradesperson - Fabrication and other tradespersons engaged in welding are required to exercise MMAW skills and techniques across a range of jobs and specifications. A single assessment event is not appropriate. On the job assessment should be included as part of the assessment process wherever possible. Where assessment occurs off the job, judgement must consider evidence of the candidate's performance in a productive work environment that includes a sufficient range of appropriate tasks and materials to cover the scope of application for this unit. 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, supervisor's 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 | This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with welding using MMAW process or other units requiring the exercise of the skills and knowledge covered by 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. |
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.
Required skills |
Required skills include: identifying and interpreting welding specifications including appropriate standards e.g. Australian Standard 1554 General Purpose, American Bureau of Shipping (ABS) or equivalent selecting and using appropriate tools and equipment using a variety of welding machines and electrodes identifying and rectifying weld defects applying techniques for distortion prevention and rectification cleaning welds reading and interpreting information on sketches, written job instructions, specifications, standard operating procedures and engineering drawings recording routine information including routine weld records related to MMAW onto proformas and standard workplace forms following oral instructions measurement skills relating to joint preparation and MMAW |
Required knowledge |
Required knowledge includes: material preparation joint preparations electrode classification causes of distortion for materials within the scope of this unit causes of defects and methods of rectification the relationships between amperage, electrode and material safe welding practices use and application of personal protective equipment for MMAW |
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. | |
Welds | Welds include fillet and butt welds carried out in all positions |
Materials | Materials may include ferrous materials including carbon or stainless steel, as well as non-ferrous metals and alloys suitable for MMA welding |
Prepared | Preparation of materials may include: pre-heating setting up of jigs, fixtures and clamps joint preparation (e.g. bevelling) |
Equipment | Equipment may include AC or DC welding machines |
Distortion prevention measures | Distortion prevention measures may include: pre heating setting up of jigs, fixtures and clamps |
Rectified | Rectified refers to oxy acetylene, air arc equipment and grinding devices |
Defects | Defects may include: porosity slag inclusions discontinuities lack of penetration undercut |
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 |
---|---|---|---|
Weld requirements are identified from specifications and/or drawings | |||
Materials are correctly prepared | |||
Materials are assembled/aligned to specification, where required | |||
Welding equipment and electrodes appropriate to the material and the weld are identified and selected | |||
Welding equipment is assembled and set up | |||
Appropriate distortion prevention measures are selected and applied | |||
Distortion is rectified | |||
Weld deposit is to specification | |||
Joints are cleaned to specifications | |||
Defects are rectified with minimum loss of sound metal using correct techniques and tools | |||
Weld joints are visually inspected for conformance to specifications | |||
Where required, weld records are completed correctly |
Forms
Assessment Cover Sheet
MEM05015D - Weld using manual metal arc welding process
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
MEM05015D - Weld using manual metal arc welding process
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
Assessor name:
Signature:
Date:
Student signature:
Date: