Standard |
MCA 217 – CNC Practical Applications
Provides instruction in specialty tooling and multi-axis machining. Students will also gain experience in process control. Topics include: EDM/ECM, specialty tooling, multi-axis machining, process control, safety and laboratory practice.
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Competency Areas |
Hours
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EDM/ECM |
Class |
4 |
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Multi-Axis Machining |
D. Lab |
0 |
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Process Control |
P. Lab/O.B.I. |
6 |
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Specialty Tooling |
Credit |
6 |
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Safety |
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Prerequisite/Corequisite: |
MCA 213, MCA 215 |
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Course Guide |
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Competency |
After completing this
section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/
O.B.I. |
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EDM/ECM |
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MULTI-AXIS MACHINING
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Servo motors |
Explain what servo motors are and how they are used to measure table movement in CNC machining. |
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Define two and three axis machine tools and list examples of each. |
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Axis definitions |
Define the Z-axis and how it is determined on any machine tool. |
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Define the following axis: X, Y, A, B, C, R, S, T. |
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Explain the relationship that the A, B, and C axis have to the X, Y, and Z axis. |
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List the machine accessories needed to be able to machine in the A, B, and C-axis. |
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Applications |
Set up a CNC end mill to machine the A, B, and C axis. |
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PROCESS CONTROL
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Definitions |
Define quality control, statistical quality control, sampling, adaptive control, and self correcting machines. |
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Data collection |
Explain in-process sensing, tool lift predictions, feed back from workpiece, cutting process and tool, and how this information is used by self correcting machines. |
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Describe the systems that collect feedback information during CNC processes. |
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Tool wear |
List the problem areas that are caused by tool wear in automated production machines. |
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SPECIALTY TOOLING |
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Tool materials |
List the types of cutting tool materials, the advantages
of each and the types of materials they were developed for. |
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Define hardmetal tooling, hard
metal insert tooling, sintered carbides, coated carbides, cemented carbides,
cermets, ceramic cutting tools, and diamond cutting tools. |
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Shaped tools |
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Jigs and fixtures |
Explain the difference between jigs and fixtures and how
each are used in machining processes. |
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Automation |
Discuss automation and robots and explain how robotic arms
are used in automated machine centers or cells. |
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Describe automatic feed methods for various CNC machines. |
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SAFETY |
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Suggested Resources |
Baril, R. (1987). Modern machining technology. Albany, NY: Delmar.
Luggen, W. W. (1986). Introduction to NC-CNC operation. Englewood Cliffs, NJ: Prentice
Hall.
Machining metals handbook. (1989). Materials Park, OH: ASM International.
McMcGeough, J. A. (1988). Advanced methods of machining. New York: Routledge
Chapman & Hall.
Smith, G. T. (1989). Advanced machining. New York: Springer-Verlag.
Walker, J. R. (1989). Machining fundamentals. South Holland, IL: Goodheart.