Elements and Performance Criteria

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.
Production machining
Production machining refers to use of workshop machines for volume production of parts or components made of metal or other machinable materials where the machine operator has responsibility for the setting up of the machine, including tooling, grinding wheels, and other accessories within defined parameters. It does not include one-off jobbing on workshop machines or complex calculations. Tolerances and tool paths will normally have been set in advance

Operations
Operations may include:
parallel cutting
slotting
drilling
knurling
cutting flats
centred and centreless grinding operations

Materials
Materials may include ferrous and non-ferrous metals as well as other machinable materials

Tooling
Tooling may include:
carbide, ceramic and high speed steel machine tooling cutting tool accessories and holding devices

Measuring devices
Measuring devices may be:
rulers
gauges
verniers and micrometers (digital or analog)

Marking out techniques
Marking out techniques may include:
basic marking out techniques using calipers, steel rules, dividers and scribers

Machining parameters
Machining parameters may include:
speeds
feeds
stops
coolant and cutting lubricants

Machines
Machines may include:
lathes
mills
planers
shapers
radial and pedestal drills
slotters
grinders

Maintenance and adjustments
Maintenance and adjustments may include:
slide and collar adjustment
cleaning and lubrication

Types and features of industrial grinding wheels
Types and features of industrial grinding wheels refers to:
wheel make-up
wheel hubs
wheel classification
types of grits and bonds

Dressing tools
Dressing tools for this unit are limited to:
industrial diamond
dressing wheels
dressing sticks

Balancing of grinding wheels
Balancing for this unit is limited to checks and identification for balance. Correction of out of balance wheels is not covered by this unit

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 perform production machining, including responsibility for selecting and mounting tooling, and setting of machine within defined parameters.

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently apply the skills covered in this unit of competency in new and different situations and contexts. Critical aspects of assessment and evidence include:
correct job planning, including identifying job requirements from drawings, instructions or specifications, and sequence of operations
selecting appropriate tooling, measuring equipment, material and accessories from a predetermined range
selecting and mounting required tooling or grinding wheels
setting machining parameters
checking machined components for conformance to specifications.
Context of and specific resources for assessment
Assessment should emphasise a workplace context and procedures found in the candidate’s workplace.
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.

Method of assessment
Assessment should occur on a variety of machines and across a range of machining tasks. Assessment must include consideration of performance evidence as demonstrated in a volume production environment. The candidate must be able to demonstrate performance across a sufficient range of appropriate tasks and materials to cover the scope of application for this unit.

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, manuals and reference materials.

Guidance information for assessment
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with performing general machining or other units requiring the exercise of the skills and knowledge covered by 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.