MEM07019C - Program NC/CNC machining centre

Unit code: MEM07019C | Study level: TAFE

Credit points

N/A

Location

Sunshine

Prerequisites

Path 1 MEM07015B Set computer controlled machines/processes MEM07016C Set and edit computer controlled machines/processes MEM07018C Write basic NC/CNC programs MEM07024B Operate and monitor machine/process MEM07028B Operate computer controlled machines/processes MEM09002B Interpret technical drawing MEM12023A Perform engineering measurements MEM18001C Use hand tools Path 2 MEM07005C Perform general machining MEM07015B Set computer controlled machines/processes MEM07016C Set and edit computer controlled machines/processes MEM07018C Write basic NC/CNC programs MEM09002B Interpret technical drawing MEM12023A Perform engineering measurements MEM18001C Use hand tools

(Or equivalent to be determined by unit coordinator)

Overview

This unit covers writing and trialling programs for NC/CNC
machining centres.

Assessment

For Melbourne campuses

Assessment tasks will be designed to reinforce and extend knowledge and skill competence within set and controlled parameters in accordance with each unit’s learning outcomes and performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines.

Students will be expected to demonstrate the following required skills:

interpreting engineering drawings, specifications and instructions;
calculating coordinates of all relevant points on the part or product to be produced;
writing NC/CNC program in standard code format and incorporating, where appropriate, canned cycles and sub-routines;
producing NC/CNC operation sheet(s);
operating NC/CNC machine in manual mode;
editing NC/CNC program, and;
checking parts or products produced for conformance with specifications.

Students will also be expected to demonstrate the following knowledge:

elements of an NC/CNC program;
the function of elements in controlling the operation of an NC/ CNC machine;
machining operations to be performed in the manufacture of the given part or product;
the appropriate type(s) of NC/CNC machine to perform the required machining operations;
the machining operations to be controlled by the program to be written;
the tool path(s) to be followed when producing the part or product;
the sequence of machining operations to be programmed;
reasons for selecting the chosen tool path(s) and sequence of operations;
the zero point of the NC/CNC machine;
the canned cycles and sub-routines accessible in the particular NC/CNC machine;
the application of each canned cycle and sub-routine available;
the canned cycles and/or sub-routines to be used in the NC/CNC program;
reasons for selecting the chosen canned cycles and/or sub-routines;
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;
relevant Australian standards;
procedures for manual operation of the NC/CNC machine;
the reasons for testing and proving the NC/CNC program;
the 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 produced;
the specifications of the part or product, and;
the measuring equipment/techniques to be used to check for conformance with specifications.

Required reading

The qualified trainer and assessor will provide teaching and learning materials as required in the form of workbooks produced by the Polytechnic and/or via the Polytechnic e-learning system.