• MEM05054A - Write basic NC/CNC programs for thermal cutting machines

Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM05054A Mapping and Delivery Guide
Write basic NC/CNC programs for thermal cutting machines

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM05054A - Write basic NC/CNC programs for thermal cutting machines
Description This unit applies to thermal cutting machines and covers identifying computer controlled machine program elements, writing a basic program and operation sheet, and trialling the program.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit extends to writing a program to describe simple thermal cutting machine operations including cutting paths using appropriate software for machines which may incorporate single or multiple nozzles and material loaders. The program may use common M and G codes but does not include the programming of advanced operations using canned cycles and sub-routines.Programs are trialled and edited as necessary to adjust operation of the machine. Technical difficulties are resolved in consultation with appropriate technical advisers. Work would be undertaken autonomously using predetermined standards of quality.For basic programming of other computer controlled machines, see Unit MEM07018C (Write basic NC/CNC programs).Band:This unit has dual status and is to be regarded as both a specialisation band A unit and Specialisation band B unit for progression to C7 (AQF level IV).Unit Weight: 4
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Path 1MEM05007C Perform manual heating and thermal cutting MEM05008C Perform advanced manual thermal cutting, gouging and shaping MEM05009C Perform automated thermal cutting MEM05053A Set and edit computer controlled thermal cutting machines MEM09002B Interpret technical drawing MEM12023A Perform engineering measurements MEM18001C Use hand tools
Competency Field Fabrication
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities
Slides
PPT
Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Identify basic NC/CNC machine program elements
  • Appropriate program elements are selected for machine controller.
       
Element: Write basic NC/CNC machine program
  • Engineering drawings are understood and interpreted to define basic machine function and cutting path geometry.
  • Coordinates are calculated for cutting path
  • Program is written in standard code format in accordance with standard operating procedures.
       
Element: Write NC/CNC operation sheet
  • Operation sheets are produced to specification in accordance with standard operating procedures.
       
Element: Trial program
  • Machine is operated in manual mode to test and prove program as required.
  • Program is edited if necessary to adjust operation as required.
  • Components are checked for conformance to specification as required.
       


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 basic NC/CNC programming. 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 basic NC/CNC programming 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.

Guidance information for assessment


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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

Look for evidence that confirms skills in:

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

planning and sequencing operations

checking and clarifying task related information

calculating coordinates of all relevant points on the part or product to be cut or welded

writing NC/CNC program in standard code format

producing NC/CNC operation sheet(s)

operating NC/CNC machine safely in manual mode

editing NC/CNC program

checking parts or products for conformance to specifications

Required knowledge

Look for evidence that confirms knowledge of:

the elements of a basic NC/CNC program

the function of elements in controlling the operation of an NC/ CNC machine

type(s) of NC/CNC thermal cutting and welding machine and their applications

thermal cutting operations controlled by program

the cutting path(s) to be followed when cutting a part or product

the reasons for selecting cutting path(s) and sequence of operations

the zero point of the NC/CNC machine

standard codes used in the writing of NC/CNC programs

applications of standard codes in NC/CNC programming

procedures for writing NC/CNC programs in standard code format

procedures for completing NC/CNC operation sheets

the information to be included in NC/CNC operation sheets

procedures for manual operation of the NC/CNC machine

reasons for testing and proving the NC/CNC program

procedures for editing the NC/CNC program via the machine controller

the effects of editing on the operation of the NC/CNC machine and the part or product to be cut

the measuring equipment/techniques used to check for conformance to specification

hazards and control measures associated with numerical and computer controlled machines, including housekeeping

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.

Basic

NC or CNC thermal cutting machines which do not require programming using canned cycles and sub-routines.

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
Appropriate program elements are selected for machine controller. 
Engineering drawings are understood and interpreted to define basic machine function and cutting path geometry. 
Coordinates are calculated for cutting path 
Program is written in standard code format in accordance with standard operating procedures. 
Operation sheets are produced to specification in accordance with standard operating procedures. 
Machine is operated in manual mode to test and prove program as required. 
Program is edited if necessary to adjust operation as required. 
Components are checked for conformance to specification as required. 

Forms

Assessment Cover Sheet

MEM05054A - Write basic NC/CNC programs for thermal cutting machines
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

MEM05054A - Write basic NC/CNC programs for thermal cutting machines

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: