Assessor Resource

MEM07008C
Perform grinding operations

Assessment tool

Version 1.0
Issue Date: May 2024


This unit applies to grinding operations performed on surface, cylindrical and centreless grinding machines. It requires use of measuring equipment and standard engineering materials and tooling.

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

Work is carried out autonomously to predetermined standards of quality and safety.

This unit covers determining the job requirements, observing safety precautions, selecting appropriate wheels and accessories, performing the grinding operations and checking the components for conformance to specifications.

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

MEM07005B Perform general machining

MEM09002B Interpret technical drawing

MEM12023A Perform engineering measurements

MEM18001C Use hand tools



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 specifies the evidence required to demonstrate achievement in the unit of competency as a whole. It must be read in conjunction with the unit descriptor, performance criteria, range statement and the assessment guidelines for the Metal and Engineering Training Package

Overview of assessment requirements

A person who demonstrates competency in this unit must be able to perform grinding operations on a range of machines. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Context of 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.

Interdependent 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 grinding 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 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.

Consistency of performance

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.

Required skills

Look for evidence that confirms skills in:

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

checking and clarifying task related information

preparing an operational work plan

planning and sequencing operations

using precision measurement equipment within the scope of this unit

setting up work using tools, techniques and equipment

using coolant and dust extraction devices

selecting and preparing grinding wheels and accessories appropriate to the grinding task(s)

performing and monitoring internal/external cylindrical grinding process

clamping/mounting work pieces

checking for conformance to specifications

performing numerical operations and calculations within the scope of this unit

Required knowledge

Look for evidence that confirms knowledge of:

reasons for selecting the chosen sequence of operations

the application of a range of holding devices/accessories

reasons for selecting specific work holding devices, tools, techniques and equipment

coolant selection/function

standard grinding wheel shapes

the range of abrasive materials used in grinding wheels

factors impacting grinding wheel selection including grain size of abrasive particles; grade or strength of bond; and bond material

grinding wheel dressing tools and their application

internal/external cylindrical grinding process

principles of effective clamping

grinding operations/procedures

the function of any grinding accessories

tools, techniques and equipment for checking components for conformance to specifications

hazards and control measures associated with grinding operations, including housekeeping

use and application of personal protective equipment

safe work practices and procedures

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.

The range statement provides information about the context in which the unit of competency is carried out. The variables and scope cater for different work requirements, work practices and knowledge between States, Territories and the Commonwealth, and between organisations and workplaces. The range statement relates to the unit as a whole and provides a focus for assessment. Text in italics in the performance criteria is explained here.

The following variables may be present and may include, but are not limited to, the examples listed under the scope. All work is undertaken to relevant legislative requirements, where applicable

Variable

Scope

Specifications

Dimensions and tolerances, geometry and tolerances, surface finish

Holding devices

Vices, clamps, magnetic chucks, face plates, collets, 3/4 jaw chuck, etc.

Wheels

Shape, grit/bond composition

Balanced

Static and dynamic balancing

Grinding machine

Surface, cylindrical and centreless machines

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
Job requirements are determined from specifications, and sequence of operations is determined. 
Correct and appropriate holding devices are selected and applied. 
Machine guards, coolant and dust extraction devices are checked. 
Correct safety procedures are observed and protective clothing and safety glasses are worn. 
Wheels are selected, balanced and dressed based on knowledge of grinding wheel structure and application. Accessories are selected to facilitate production to job specifications. 
Grinding machine is set up and adjusted in accordance with defined procedures. 
Work piece is held or clamped appropriately to avoid damage. 
Grinding operations are performed safely, utilising all guards, safety procedures and personal protective clothing and equipment. 
Components are checked for conformance to specification using appropriate techniques, tools and equipment. 

Forms

Assessment Cover Sheet

MEM07008C - Perform grinding operations
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

MEM07008C - Perform grinding operations

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: