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

MEM19035A Mapping and Delivery Guide
Plan and apply casting techniques for jewellery and object designs

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM19035A - Plan and apply casting techniques for jewellery and object designs
Description This unit of competency covers the skills and knowledge required to plan and apply casting techniques for constructing jewellery and object designs. It includes use of wax models and moulds and application of metal casting skills.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit applies to jewellery and object designers who make items according to design specifications, where casting and associated techniques are required for the production of jewellery and 3D objects.Band AUnit Weight 4
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Not applicable.
Competency Field
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: Examine design brief and prepare for work
  • Review design brief and all documentation to confirm specifications
  • Determine type of casting techniques and resources appropriate for design
  • Develop work plan for production
  • Identify and implement occupational health and safety (OHS) and environmental requirements for carrying out the tasks and for the work area
       
Element: Produce wax models
  • Determine process requirements for production of wax model
  • Identify required equipment and prepare for use
  • Cut materials to required dimensions using appropriate tools
  • Sculpt wax model to specifications and minimise imperfections
  • Apply surface finishes as required
       
Element: Produce moulds
  • Select appropriate moulding material for style of master, and prepare, pack, dry and burn out correctly
  • Carry out wax injection of moulds using appropriate tools, materials and processes, if required
  • Vulcanise/cure rubber correctly, if appropriate
  • Release master pattern correctly using appropriate tools
       
Element: Cast metals for jewellery and object designs
  • Establish casting requirements from source documentation and/or appropriate personnel, as required
  • Select metals and alloys in appropriate proportions and weigh correctly and in correct wax-to-metal ratios
  • Prepare casting equipment according to established enterprise procedures
  • Carry out pre-heating/glazing, if applicable
  • Cast jewellery item or object using correct procedures with respect to maintaining temperature, applying protective coating, if required, and handling of hot molten metal
  • Allow for adequate solidification time
  • Clean up work area and equipment and dispose of waste according to environmental requirements
       


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.

Overview of assessment

A person who demonstrates competency in this unit must be able to apply casting techniques required in the production of jewellery and object designs.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently:

implement OHS workplace procedures and practices, including the use of risk control measures

demonstrate the application of jewellery casting techniques on more than one occasion and in different contexts. This includes:

producing wax models

performing investment procedures

producing moulds for lost wax, cuttlefish or sand casting

casting jewellery objects.

Context of and specific resources for assessment

Assessment may occur on the job or in an appropriately simulated environment. Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and to information on workplace practices and OHS practices.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

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 knowledge includes:

design casting process

properties of metals and alloys

making the master model

moulding

making the wax pattern

investment

burn out

melting

casting

removing investment

cutting

finishing

workshop procedures

casting defects

minimising casting defects

Required skills include:

selecting appropriate quality materials for the production of wax model

producing wax models to given specifications and minimising imperfections

performing wax injection of mould, where applicable

correctly vulcanising and curing rubber moulds where applicable

using molten metal safely

casting jewellery and objects using different techniques and materials

applying appropriate finishing techniques to cast object

OHS requirements

OHS requirements may include:

legislation

protective equipment

material safety management systems

hazardous substances and dangerous goods code

local safe operation procedures

awards provisions

Environmental requirements

Environmental requirements may relate to:

liquid waste

solid waste

gas, fumes, vapour, smoke emissions, including fugitive emissions, and dust

excessive energy and water use

excessive noise

Appropriate personnel

Appropriate personnel may include:

supervisor

foreman

manager

trainer

mentor

teacher

team member

client

Enterprise procedures

Enterprise procedures may include:

the use of tools and equipment

instructions, including job sheets, cutting lists, plans, drawings and designs

reporting and communication

manufacturer specifications

operational procedures

Surface finishes

Surface finishes may include:

fine emery

shellite

Casting methods

Casting methods may include:

cuttlefish

centrifugal

vacuum casting

delft clay

Wax injection

Wax injection may include:

primarily to organic/synthetic wax injection, but may include resin and plastic materials injected under pressure for investment and burn out aspects within ‘lost wax’ casting procedures

Casting

Casting may include:

primarily by the ‘lost wax’ method of investment casting, but may include cuttlebone and sand processes as extensions

Metals and alloys

Metals and alloys may include:

gold

platinum

palladium

silver

copper

pewter and their alloys

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
Review design brief and all documentation to confirm specifications 
Determine type of casting techniques and resources appropriate for design 
Develop work plan for production 
Identify and implement occupational health and safety (OHS) and environmental requirements for carrying out the tasks and for the work area 
Determine process requirements for production of wax model 
Identify required equipment and prepare for use 
Cut materials to required dimensions using appropriate tools 
Sculpt wax model to specifications and minimise imperfections 
Apply surface finishes as required 
Select appropriate moulding material for style of master, and prepare, pack, dry and burn out correctly 
Carry out wax injection of moulds using appropriate tools, materials and processes, if required 
Vulcanise/cure rubber correctly, if appropriate 
Release master pattern correctly using appropriate tools 
Establish casting requirements from source documentation and/or appropriate personnel, as required 
Select metals and alloys in appropriate proportions and weigh correctly and in correct wax-to-metal ratios 
Prepare casting equipment according to established enterprise procedures 
Carry out pre-heating/glazing, if applicable 
Cast jewellery item or object using correct procedures with respect to maintaining temperature, applying protective coating, if required, and handling of hot molten metal 
Allow for adequate solidification time 
Clean up work area and equipment and dispose of waste according to environmental requirements 

Forms

Assessment Cover Sheet

MEM19035A - Plan and apply casting techniques for jewellery and object designs
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

MEM19035A - Plan and apply casting techniques for jewellery and object designs

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: