Assessor Resource

MEM07005C
Perform general machining

Assessment tool

Version 1.0
Issue Date: April 2024


The unit of competency applies to the use of machinery to shape metal including lathes, mills, planers, shapers, radial arm drills, slotters and surface grinders.

This unit has been developed to support Engineering Tradesperson - Mechanical apprenticeship training and the recognition of trade level skills in machining operations. Skills covered by this unit are generally applied in occupational and work situations associated with fitting and machining. It may also apply to other trade occupations requiring general machining skills. It may also apply in some circumstances to senior operators who have responsibility for machine set up, selection of materials and lubricants, establishment of datum points and basic marking out, and setting of speeds, feeds and other machining parameters.

This unit has application in the MEM30205 Certificate III in Engineering - Mechanical qualification and other qualifications requiring a basic trade level of machining skills. It may also apply to MEM20205 Certificate II in Engineering - Production Technology and MEM30105 Certificate III in Engineering - Production Systems and other qualifications requiring machining skills.

Machining is undertaken on one or more of a range of standard machine tools. Machines are not computer numerical controlled (CNC) machines.

Where machining is undertaken without undertaking any set up including mounting of tools, setting of speeds, feeds and other operational parameters then either MEM07024B Operate and monitor machine/process or MEM07025B Perform advanced machine/process operation should be selected.

Drilling operations in this unit exclude those covered by MEM18002B Use power tools/hand held operations.

Where substantial marking out is required, MEM12006C Mark off/out (general engineering) should be considered.

Where precision measurement is required, MEM12003B Perform precision mechanical measurement should also be considered.

For set-up and operation of electro-discharge (EDM) machines, refer to MEM07014B Perform electro-discharge (EDM) machining operations.

Band: A

Unit Weight: 8

This unit of competency covers determining the job requirements and sequence of operations, selecting and mounting tools, performing the machining, measuring the components, and adjusting and maintaining a range of standard machine tools.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Path 1

MEM09002B

Interpret technical drawing

MEM12023A

Perform engineering measurements

MEM18001C

Use hand tools


Employability Skills

This unit contains employability skills.




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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 general machining including responsibility for selecting and mounting tooling and setting machining parameters. 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 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

identifying any required tooling, measuring equipment and accessories

selecting and mounting required tooling

selecting material and marking out if required

setting machining parameters

checking machined components for conformance to specifications.

Context of and specific resources for assessment

This unit has been developed to support training in and recognition of trade level competency in general machining as applied to a trade level fitting and machining, other trade or senior operator work environment. 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

Typically Engineering Tradespersons - Mechanical and other persons engaged in general machining work are required to apply their machining skills and techniques across a range of jobs and specifications.

A single assessment event is not appropriate. On the job assessment should be included as part of the assessment process wherever possible. Where assessment occurs off the job, judgement must consider evidence of the candidate's performance in a productive work environment that includes 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, codes, standards, 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.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Required skills include:

reading and interpreting routine information on written job instructions, specifications and standard operating procedures which may include drawings

following oral instruction

planning and sequencing operations

preparing operational work plan

sharpening and shaping cutting tools

identifying worn or damaged cutting tools

correct mounting and positioning of cutting tools

basic marking out of materials

setting machining parameters to achieve the job requirements and maximise tool life

using appropriate and sufficient clamping/mounting of the work piece

using coolant/lubricant correctly

checking for conformance to specifications

measuring to specified tolerances and dimensions

Required knowledge

Required knowledge includes:

reasons for selecting the chosen sequence of operations

methods of work holding

basic marking out techniques including datum points/lines

geometry of cutting tools for a range of materials and applications

benefits of using correctly sharpened cutting tools

machine operation

selection of feeds and speeds to suit a range of materials and operations within the scope of this unit

correct methods of mounting a variety of cutting tools

safety issues with regard to correct clamping, guards and shields

tolerances and limits of size

situations indicating the need for machine adjustment, lubrication and cleaning

techniques, tools and equipment to measure materials and machined components

use and application of personal protective equipment

safe work practices and procedures

hazards and control measures associated with general machining

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.

Operations

Operations may include:

parallel cutting

slotting

planing

drilling

knurling

cutting flats

non-precision surface grinding operations

Materials

Materials may include ferrous and non-ferrous

Tools

Tools may include:

cutting tools and accessories

measuring devices

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 arm drills

slotters

surface grinder

Maintenance and adjustments

Maintenance and adjustments may include:

slide and collar adjustment

cleaning and lubrication

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Drawings, instructions and specifications are interpreted and understood 
Sequence of operations including job set-up is determined for maximum efficiency and to meet job specifications 
Appropriate material is selected and datum established as required 
Appropriate tools for job are selected, sharpened and shaped as required 
Tools are mounted and positioned correctly 
Basic marking out techniques are used where required 
Machining parameters are set for job requirements and maximum tool life 
Work is held or correctly clamped without damage to product, and all safety requirements are met 
Machining is performed in a safe manner utilising all guards, safety procedures and personal protective clothing and equipment 
Components are checked with instruments or gauges appropriate to the measurement requirements to ensure compliance with specifications 
Routine maintenance and adjustments are carried out as required which may include slide and collar adjustment, cleaning and lubrication 

Forms

Assessment Cover Sheet

MEM07005C - Perform general machining
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

MEM07005C - Perform general machining

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: