- MEM04011B - Produce polymer patterns
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners
MEM04011B Mapping and Delivery Guide
Produce polymer patterns
Version 1.0
Issue Date: May 2024
| Qualification | - |
Unit of Competency | MEM04011B - Produce polymer patterns |
|---|---|---|---|
| Description | This unit covers designing, manufacturing and finishing polymer patterns. | ||
| Employability Skills | This unit contains employability skills. | ||
| Learning Outcomes and Application | This unit applies to the manufacture of investment casting dies and polymer patterns for medium production castings, core boxes, tooling aids, jigs and checking fixtures etc. Construction includes, but is not limited to, solid polymer, filled, laminated fibreglass or metal inserts.Band: AUnit Weight: 8 | ||
| Duration and Setting | X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting. |
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| Prerequisites/co-requisites | Path 1MEM07005C Perform general machining MEM09002B Interpret technical drawing MEM12023A Perform engineering measurements MEM13003B Work safely with industrial chemicals and materials MEM18001C Use hand tools | ||
| Competency Field | Casting and moulding | ||
| Development and validation strategy and guide for assessors and learners | Student Learning Resources | Handouts Activities |
Slides PPT |
Assessment 1 | Assessment 2 | Assessment 3 | Assessment 4 | |
|---|---|---|---|---|---|---|---|---|
| Elements of Competency | Performance Criteria | |||||||
| Element: Inspect and prepare patterns and cores |
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| Element: Manufacture moulds, patterns, tooling aids etc. |
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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 produce polymer patterns. 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 | 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. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with producing polymer patterns 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, 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 | |
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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 |
Look for evidence that confirms skills in: reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable reference documents undertaking numerical operations, geometry and calculations/formulae within the scope of this unit, including determination of contraction rates measuring polymer materials interpreting written instructions, sketches and drawings making master patterns machining patterns/core boxes and tooling aids sealing the patterns or cores with appropriate surface finish alignment of pattern to core box setting up with necessary locations applying the parting agents selecting polymers preparing polymer and hardener applying polymer coating releasing patterns and moulds cleaning patterns and moulds |
Required knowledge |
Look for evidence that confirms knowledge of: machining for pattern making parting agents safe working procedures methods of locating patterns and core boxes the range of surface finishes range of polymers and their applications mixing ratios and calculations characteristics of polymer under exothermic reaction exothermic control procedures methods of stripping pattern checking techniques use and application of personal protective equipment safe work practices and procedures hazards and control measures associated with producing polymer patterns |
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. | |
Surface finish | Texture, gel coat, aluminium fill |
Parting agent | Wax, PVA |
Polymer materials | Epoxy resins, urethane |
Method of location | Male and female joint, pin and bush |
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 |
|---|---|---|---|
| Patterns or cores are inspected for appropriate surface finish and set up on jointline or flat board to specification. | |||
| Appropriate parting agent is selected and applied to polymer specifications. | |||
| Appropriate polymer materials are selected to specification. | |||
| Polymer and hardener are mixed to correct ratios and specifications using standard safety and operating procedures. | |||
| Polymer is applied to specification and using predetermined methods, ensuring that air is not entrapped in application, excessive heat is not generated and delamination does not occur in final use. | |||
| Pattern/core box is stripped, inspected, cleaned and repaired as required. | |||
| Faces of polymer pattern are machined and finished to specifications. | |||
| Appropriate method of location is applied to patterns and core boxes. | |||
| Polymer tooling is checked for conformance to specifications as required. |
Forms
Assessment Cover Sheet
MEM04011B - Produce polymer patterns
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
MEM04011B - Produce polymer patterns
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: