• MEM04013B - Develop and manufacture polystyrene patterns

Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM04013B Mapping and Delivery Guide
Develop and manufacture polystyrene patterns

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM04013B - Develop and manufacture polystyrene patterns
Description
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit covers all patterns using polystyrene, including patterns for the lost foam process and for those areas on a wood pattern and core box where polystyrene is required.Where precision measurement is required, Unit MEM12003B (Perform precision mechanical measurement) should also be considered.Band: AUnit Weight: 2
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Path 1MEM04010B Develop and manufacture wood patterns MEM04018B Perform general woodworking machine operations MEM09002B Interpret technical drawing MEM12006C Mark off/out (general engineering) MEM12023A Perform engineering measurements MEM12024A Perform computations MEM18001C Use hand tools MEM18002B Use power tools/hand held operations MEM30012A Apply mathematical techniques in a manufacturing engineering or related environment
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: Determine job requirements
  • Drawings, instructions and specifications are interpreted and understood.
  • The appropriate grade/type of polystyrene is selected to meet specifications.
       
Element: Mark out pattern
  • Calculations are performed to determine contraction allowance etc.
  • Pattern/pattern components are marked out to specifications.
       
Element: Manufacture pattern
  • Pattern components are correctly jointed and secured using adhesives appropriate to the task.
  • Appropriate tools are selected and techniques are used to manufacture polystyrene patterns to specification.
  • Pattern is checked for conformance to specifications and correctly marked for identification.
       
Element: Protect pattern from damage
  • Patterns are handled and stored in a safe manner least likely to cause damage using standard operating procedures.
       


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 develop and manufacture polystyrene 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

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 pattern making in polystyrene 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:

determining job requirements from written instructions, sketches and drawings

planning and sequencing tasks/operations

checking and clarifying task-related information

selecting polystyrene appropriate for pattern or foundry process

marking out in relation to polystyrene patterns

selecting and applying adhesives

manufacturing polystyrene patterns

checking patterns for compliance

handling finished polystyrene products

using calculations to determine contraction allowances

Required knowledge

Look for evidence that confirms knowledge of:

types and applications of polystyrene for pattern making

the formulae and mathematical techniques required for manufacturing patterns/core boxes i.e. contraction, taper, clearances, machining allowances etc.

marking out techniques for polystyrene patterns

undercuts and holes

types and applications of adhesives

tools and their uses in the manufacture of polystyrene patterns

pattern checking techniques

handling and storage techniques

use and application of personal protective equipment

safe work practices and procedures

hazards and control measures associated with developing and manufacturing polystyrene 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.

Grade/type

Size and density of bead

Adhesives

PVA, 'hot glue'

Tools

Hot wire, knives, saws

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
Drawings, instructions and specifications are interpreted and understood. 
The appropriate grade/type of polystyrene is selected to meet specifications. 
Calculations are performed to determine contraction allowance etc. 
Pattern/pattern components are marked out to specifications. 
Pattern components are correctly jointed and secured using adhesives appropriate to the task. 
Appropriate tools are selected and techniques are used to manufacture polystyrene patterns to specification. 
Pattern is checked for conformance to specifications and correctly marked for identification. 
Patterns are handled and stored in a safe manner least likely to cause damage using standard operating procedures. 

Forms

Assessment Cover Sheet

MEM04013B - Develop and manufacture polystyrene 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

MEM04013B - Develop and manufacture polystyrene 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: