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 prepare, grind, check and reassemble production tooling. 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 perform routine sharpening/maintenance of production tools and cutters 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 specifi-cations, codes, standards, manuals and reference materials.

Guidance information for assessment

Required skills

Look for evidence that confirms skills in:

reading and interpreting drawings and instructions

planning a sequence of operations

selecting and using appropriate tools

entering routine and familiar information on to proforma and standard workplace forms

Required knowledge

Look for evidence that confirms knowledge of:

sequence of operations to be performed

function of coolant and dust extraction devices

hazards associated with tool and cutter grinding operations

the standard grinding wheel shapes

range of abrasive materials used in grinding wheels

the effect of the following grinding wheel features on wheel selection and application:

grain size of abrasive particles

grade or strength of bond material

structure of grain spacing and dressing processes

function and application of the full range of tool and cutter grinding accessories

preparation requirements for tool maintenance

requirements for checking:

dimensions and tolerances

geometry and tolerances

surface finish

use and application of personal protective equipment

safe work practices and procedures

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 tooling

Inserted boring bars, face cutters, gear cutters, grinding machines and accessories etc.

Grinding wheels

Cup, dish, diamond

Grain size of abrasive particles

Grade or strength of bond

Structure of grain spacing

Grain size of abrasive particles

Fixtures/equipment

Dedicated holding devices e.g. clamps, vices, magnetic chucks, indicator pawls