This unit applies to a range of one or more of precision shaping, planing or slotting operations where achievement of the specified tolerance and finish is mandatory.

Work is performed to drawings or sketches, specifications and instructions as appropriate.

Precision measuring instruments, standard engineering materials and cutting tools are used.

Band: A

Unit Weight: 4

Path 1

MEM07005C

Perform general machining

MEM09002B

Interpret technical drawing

MEM12003B

Perform precision mechanical measurement

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools

ELEMENT

PERFORMANCE CRITERIA

1. Observe safety precautions

1.1. Correct safety procedures are observed and protective clothing and safety glasses worn.

2. Determine job requirements

2.1. Drawings are interpreted, sequence of operations determined and tools selected to produce component to specification.

2.2. Cutting parameters are determined.

3. Perform precision shaping operations

3.1. Precision shaping operations are carried out including precision flat surfaces, shoulders, slots, keyways, angles and dovetails.

4. Perform precision planing operations

4.1. Precision planing operations are carried out including horizontal and vertical surfaces and angles.

5. Perform precision slotting operations

5.1. Precision slotting operations are carried out including feathered and tapered keyways, slotting internal cavities, dovetails, slotting circular surfaces and internal splines.

6. Check component for conformance to specification

6.1. Component is checked for conformance to specification using appropriate techniques, tools and equipment.

Required skills

Look for evidence that confirms skills in:

preparing an operational work plan

performing precision shaping operations:

flat surfaces

shoulders

slots

keyways

angles

dovetails

performing precision planing operations on:

horizontal and vertical surfaces

performing precision slotting operations:

feathered keyways

tapered keyways

slotting internal cavities

dovetails

slotting circular surfaces

slotting internal splines

checking for conformance to specifications

using precision measurement equipment

planning and sequencing operations

reading and interpreting information on written job instructions, specifications, charts, lists, drawings and other applicable reference documents

checking and clarifying task related information

measuring components to specified tolerances

performing calculations for determining cutting parameters and checking tolerances

undertaking numerical operations within the scope of this unit

Required knowledge

Look for evidence that confirms knowledge of:

reasons for selecting the chosen sequence of operations

procedures for setting up the work piece

tool type and geometry to achieve the required specifications on different materials

techniques and procedures for machining the following:

flat surfaces

shoulders

slots

keyways

angles

dovetails

planing techniques and procedures for machining:

horizontal and vertical surfaces

slotting techniques and procedures for machining:

feathered keyways

tapered keyways

slotting internal cavities

dovetails

slotting circular surfaces

slotting internal splines

appropriate techniques, tools and equipment to measure machined components

hazards, control measures and housekeeping associated with precision shaping/planing/slotting operations

use and application of personal protective equipment

safe work practices and procedures

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 precision shaping/planing/slotting operations. 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 performing precision shaping/planing/slotting operations 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 should not require language, literacy and numeracy skills beyond those required in this unit. 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, codes, standards, manuals and reference materials.

Guidance information for assessment

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.

Tools

Cutting tools, tool holders

Cutting parameters

Feeds, speeds, depth of cut, length of cut etc.

Precision operations

The use of dedicated precision measuring instruments

Unit sector

Machine and process operations

This unit contains employability skills.