This describes the essential skills and knowledge and their level required for this unit

Required skills

analyse

select and set up appropriate tests

problemsolve

perform tests

interpret results

report results

Required knowledge

standards

needs for standards

standards organisations

structure and operations of SAA

Standards Association of Australia

role of NATA National Association of Testing Australia

tensile testing

methods for tensile testing eg AS or equivalent international standard

determination of tensile properties

general impact testing

factors affecting impact properties of materials

impact testing AS or equivalent international standard

dropweight Tear Test AS or equivalent international standard

hardness testing

Vickers Hardness Testing AS Part or equivalent international standard

Brinell Hardness Testing AS Part or equivalent international standard

Rockwell Hardness Testing AS Part or equivalent international standard

other Hardness Testing Methods eg Equotip and other rebound methods

fatigueflex testing

factors affecting the fatigueflex properties materials

fatigue testing procedures

presentation of Fatigue properties

creep testing

factors affecting creep behaviour of materials

creep testing procedures

stressrupture testing

presentation of Creep properties

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge the 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 test the mechanical properties of materials

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

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

It is essential that competence is demonstrated in the ability to

Conduct tests and interpret results Evidence should be provided from a number of each type of mechanical test

Relationship with other units

This unit may be assessed concurrently with other relevant units

Assessment method and context

Assessors must be satisfied that the person can consistently perform the unit as a whole as defined by the elements performance criteria skills and knowledge A holistic approach should be taken to the assessment

Assessors should gather sufficient fair valid reliable authentic and current evidence from a range of sources Sources of evidence may include direct observation reports from supervisors peers and colleagues project work samples organisation records and questioning Assessment should not require language literacy or numeracy skills beyond those required for the unit

The assessee will have access to all techniques procedures information resources and aids which would normally be available in the workplace

The method of assessment should be discussed and agreed with the assessee prior to the commencement of assessment Assessment will need to occur in a situation where mechanical testing is undertaken

Resource implications

This section should be read in conjunction with the range of variables for this unit of competency Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation A bank of case studiesscenarios and questions will also be required to the extent that they form part of the assessment method Questioning may take place either in the workplace or in an adjacent quiet facility such as an office or lunchroom No other special resources are required

Codes of practice/standards

Mechanical tests

Materials

Testing standard

Certified

Tensile/compressive properties

Impact test

Impact properties

Hardness test

Strain measurements