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Standard |
Updated: 12/07/04
Updated: 10/13/05
MCH 109
- Lathe Operations I
Provides opportunities for students to develop skill in the use of bench grinders and lathes. Topics include: lathes, bench grinders, bench grinder operations, lathe calculations, lathe setup, lathe operations, and safety.
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Competency Areas |
Hours
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Bench Grinders |
Class |
2 |
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Bench Grinder Operations |
D. Lab |
8 |
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Lathes |
P. Lab/O.B.I. |
0 |
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Lathe Calculations |
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Lathe Operations |
Credit |
6 |
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Lathe Setup |
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Safety |
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Prerequisite: |
Provisional admission |
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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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BENCH
GRINDERS |
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Wheel selection |
Change and dress bench grinding wheels. |
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Test grinding wheels for soundness. |
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Perform basic bench grinder maintenance. |
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BENCH
GRINDER OPERATIONS |
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Sharpening |
Sharpen and recondition hand tools. |
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Grinding |
Grind lathe turning tools. |
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Grind lathe form tools. |
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Grind lathe threading tools. |
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Grind lathe cut-off tools. |
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Grind lathe boring tools. |
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Sharpen carbide tools. |
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Describe the procedure used to sharpen carbide tools with a diamond wheel. |
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LATHES |
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Lathe parts |
Explain the function of each part of the lathe. |
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Lathe controls |
Determine the use and setting of each lathe control for specific jobs (facing, drilling, cutting, and threading). |
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Lathe lubrication system |
Clean and lubricate the lathe to manufacturer's specifications. |
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Lathe maintenance |
Perform basic lathe maintenance. |
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Blueprint reading |
Interpret blueprints for material type and size, type of cutting tool required, and lathe control settings to complete the cutting operation specified. |
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LATHE
CALCULATIONS |
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Speeds and feeds |
Use charts to find appropriate feeds and speeds. |
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Calculate and set lathe speeds, feeds, and depth of cut. |
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Tooling requirements |
Determine the type of cutting tool, tool holder, and work holding device for each turning operation. |
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Other calculations (tapers, threads, drilling, etc.) |
Calculate tapers, thread pitch and geometry, and drill sizes for internal threads. |
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LATHE OPERATIONS
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Operations |
Shape and sharpen cutting tools. |
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Face and turn parts in a 3-jaw chuck. |
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Machine parts between centers. |
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Machine parts using collet chucks. |
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Perform knurling operations. |
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Center drill and drill parts. |
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Bore, face, and recess internal diameters. |
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Ream holes to specifications. |
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Undercut diameters and shoulders. |
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Cut off parts. |
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Turn tapers. |
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Machine internal tapers. |
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Thread external diameters. |
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LATHE
SETUP |
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Setup |
Plan sequence of lathe operations. |
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Set up engine lathe. |
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Set up high speed lathe for secondary operations. |
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Align lathe centers. |
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SAFETY |
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Suggested Resources |
Brown, W. C., et al. (1985). Modern general shop. South Holland, IL: Goodheart-Willcox.
Feirer, J. L. (1986). General metals. New York: McGraw-Hill.
Kibbe, R. A., et al. (1979). Machine
tool practices. New York: John Wiley & Sons.
Matt, S. R. (1985). Machine tool
operations: An introduction. Belmont, CA: Wadsworth.