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Standards |
Posted:
10/09/07
|
R State Standard |
£ Institutionally
Developed |
College: n/a |
MCA 213 – CNC Mill Manual Programming
Provides instruction for the safe operation and manual
programming of computer numerical controlled (CNC) milling machines. Topics include:
safety, calculations for programming, program codes and structure, program run
and editing of programs.
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Competency Areas |
Hours |
|
|
Safety |
Class |
4 |
|
Programming
Calculations |
D.
Lab |
6 |
|
Program
Codes & Structure |
P.
Lab/O.B.I. |
0 |
|
Program
Run & Editing |
Credit |
7 |
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Prerequisite/Corequisite: |
MCA
211 |
|
Suggested Resources |
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Competency |
After completing
this section, the student will: |
Hours |
||
|
Class |
D.Lab
|
P.Lab/ O.B.I. |
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SAFETY |
1 |
1
|
0 |
|
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Explain
the safety measures and problems with automated movements of machine tables
with varying heights of workpieces and fixture
parts. |
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Demonstrate
programming procedures for safe part run. |
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Identify
safety problems with tool changes or part
load/unload positions. |
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14 |
0
|
0 |
||
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Calculate
proper feeds, speeds, and depth of cuts for given cutters for given part
programs for the CNC milling machine. |
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Calculate
proper cutter positions for rough and finish passes on given part shapes when
programming for a CNC milling machine. |
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Calculate
drilling depth for given drill diameters for thru holes in CNC mill programs. |
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Calculate
drill peck amounts for given drill diameter and part materials for CNC mill
programs. |
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Calculate
feeds and speeds for rigid tapping. |
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PROGRAM CODES & STRUCTURE
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25 |
30
|
0 |
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Define
the various G and M codes and their functions used in CNC Mill programming. |
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Discuss
the related machine tool movements resulting from the codes entered into the
programmable controller of a CNC Milling machine. |
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Determine
order of operations, part holding, and part referencing for given part
programs to be ran on a CNC Mill. |
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Determine
proper tooling for given part programs to be ran on
a CNC Mill. |
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Program
linear and circular interpolation moves on a CNC Mill. |
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Program
required hole operations on a CNC milling machine for
a given part shape. |
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Demonstrate
proper use of canned cycles in CNC Mill part programming. |
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Demonstrate
proper use of cutter diameter compensation in CNC Mill part programming. |
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Discuss
use of program looping and sub-programs in CNC Mill part programming. |
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PROGRAM RUN & EDITING
|
0 |
29
|
0 |
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Setup
and load part programs in a CNC milling machine for part run. |
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Dry
run part programs for checking purposes on a CNC milling machine. |
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Troubleshoot
part program for programming errors and part dimensional accuracy. |
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Edit
part program for optimal program run time and tool life. |
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Suggested Resources |
Smid, P. CNC
Programming Handbook. Industrial Press
Valentino, J. Introduction to Computer Numerical Control (CNC). Prentice Hall.
Nanfara, F. The CNC Workbook. Addison Wesley.
Stenerson, J & Curran, K Computer
Numerical Control – Operation & Programming.
Pearson/Prentice Hall