Standard |
MCA 208 – Advanced Grinding I
Provides instruction in advanced grinding operations and procedures. Emphasis is placed on skill development through laboratory experiences. Topics include: surface grinding, cylindrical grinding, tool and cutter grinding, grinding theory, and safety.
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Competency Areas |
Hours
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Surface Grinding |
Class |
3 |
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Cylindrical Grinding |
D. Lab |
2 |
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Tool and Cutter Grinding |
P. Lab/O.B.I. |
0 |
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Grinding Theory |
Credit |
4 |
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Safety |
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Prerequisite: |
MCH 112 |
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Corequisite: |
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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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SURFACE GRINDERS |
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General information |
Define the terms used in grinding operations. |
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Explain how surface grinding machines work. |
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List the types of workholding devices used in surface grinding. |
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Application |
Demonstrate dressing and turning grinding wheels. |
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Set up a surface grinder to grind a straight flat surface to very small tolerances. |
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Set feeds and speeds, stops and reversing dogs, and power longitudinal power feeds on both horizontal and vertical spindle surface grinders. |
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Select and set up the equipment needed to grind internal surfaces. |
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CYLINDRICAL GRINDING
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General information |
Describe the machine accessories for cylindrical work. |
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Determine work surface speeds for specified workpieces and wheel speed rpm. |
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Setup |
Set up the surface grinder with a turn wheel, head and foot stock, and workpiece. |
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Application |
Grind workpieces to specified size and finish. Grind a tapered workpiece to a specified size and finish. |
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TOOL AND CUTTER GRINDING
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General information |
Explain the use of a clearance table for sharpening milling cutters with a disk wheel. |
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Demonstrate the use of a cylindrical grinder to sharpen milling cutters with straight teeth. |
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Determine cutting speeds and depth of cut for high speed steel, cast nonferrous, and sintered carbide milling cutters. |
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Explain the cutting procedures for sharpening end mill cutters. |
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Setup and application |
Set up a surface grinder to sharpen horizontal milling cutters and end mill cutters. |
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GRINDING THEORY |
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Explain each of the speed and feed formulas needed to perform safe surface grinding operations. |
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Explain the marking for identifying grinding wheels and other bonded abrasives. |
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Show how grinding wheel charts are used for grinding specified materials, types, shapes, or size of grinding wheels. |
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Explain how bonds affect the speed limitation of grinding wheels. |
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SAFETY |
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Suggested Resources |
ASM International.
(1987). Tool materials for high-speed
machining. Materials Park, OH: Author.
ASM International.
(1988). Machining source book.
Materials Park, OH: Author.
ASM International.
(1989). Machining metals handbook
(Vol. 16). Materials Park, OH: Author.
Baril, R. (1987). Modern machining technology. Albany, NY: Delmar.
Business
Communications Staff. (1986). Advanced
high technology machining systems. Norwalk, CT: Author.
Malkin, S. (1989). Grinding technology: Theory and applications of machining with
abrasives. New York: Halsted Press.
McGeough, J. A. (1988). Advanced methods of machining. New York: Chapman & Hall.
Smith, G. T. (1989). Advanced machining. New York: Springer-Verlag.