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Evidence Guide: MEM19035A - Plan and apply casting techniques for jewellery and object designs

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

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

What evidence can you provide to prove your understanding of each of the following citeria?

Examine design brief and prepare for work

  1. Review design brief and all documentation to confirm specifications
  2. Determine type of casting techniques and resources appropriate for design
  3. Develop work plan for production
  4. Identify and implement occupational health and safety (OHS) and environmental requirements for carrying out the tasks and for the work area
Review design brief and all documentation to confirm specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine type of casting techniques and resources appropriate for design

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop work plan for production

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and implement occupational health and safety (OHS) and environmental requirements for carrying out the tasks and for the work area

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Produce wax models

  1. Determine process requirements for production of wax model
  2. Identify required equipment and prepare for use
  3. Cut materials to required dimensions using appropriate tools
  4. Sculpt wax model to specifications and minimise imperfections
  5. Apply surface finishes as required
Determine process requirements for production of wax model

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify required equipment and prepare for use

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cut materials to required dimensions using appropriate tools

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Sculpt wax model to specifications and minimise imperfections

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply surface finishes as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Produce moulds

  1. Select appropriate moulding material for style of master, and prepare, pack, dry and burn out correctly
  2. Carry out wax injection of moulds using appropriate tools, materials and processes, if required
  3. Vulcanise/cure rubber correctly, if appropriate
  4. Release master pattern correctly using appropriate tools
Select appropriate moulding material for style of master, and prepare, pack, dry and burn out correctly

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out wax injection of moulds using appropriate tools, materials and processes, if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Vulcanise/cure rubber correctly, if appropriate

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Release master pattern correctly using appropriate tools

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cast metals for jewellery and object designs

  1. Establish casting requirements from source documentation and/or appropriate personnel, as required
  2. Select metals and alloys in appropriate proportions and weigh correctly and in correct wax-to-metal ratios
  3. Prepare casting equipment according to established enterprise procedures
  4. Carry out pre-heating/glazing, if applicable
  5. Cast jewellery item or object using correct procedures with respect to maintaining temperature, applying protective coating, if required, and handling of hot molten metal
  6. Allow for adequate solidification time
  7. Clean up work area and equipment and dispose of waste according to environmental requirements
Establish casting requirements from source documentation and/or appropriate personnel, as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select metals and alloys in appropriate proportions and weigh correctly and in correct wax-to-metal ratios

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare casting equipment according to established enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out pre-heating/glazing, if applicable

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cast jewellery item or object using correct procedures with respect to maintaining temperature, applying protective coating, if required, and handling of hot molten metal

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Allow for adequate solidification time

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean up work area and equipment and dispose of waste according to environmental requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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.

Required Skills and Knowledge

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

Range Statement

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