MFG 340 - Basic Lathe Operation

1. Introduction
   1. Identify common shop hazards
   2. Shop Safety
2. Identify basic hand tools
   1. Determined the proper tool for a given job
   2. Determine the correct use of a selected tool
3. Demonstrate knowledge of how to prepare for machining
   1. Determine how metal cutting affects the surface structures of metals
   2. Calculate correct cutting speeds for various machine tools and grinders
   3. Determine correct feeds for various machining operations
4. Explain thread cutting practices
   1. Select the correct tap drill for a specific percentage of thread
   2. Determine the cutting speed for a given work material-tool combination
   3. Select the correct cutting fluid for tapping
   4. Identify common tapping problems
   5. Describe what a thread cutting die is
5. Demonstrate a knowledge of the parts of the Horizonal and Vertical Bandsawing machines
   1. Use saw blade terminology
   2. Describe the conditions that define blade selection
   3. Describe abrasive and cold saws
   4. Describe the blade end grinding procedure
   5. Explain how to weld a band blade
   6. Describe the weld grinding procedure
   7. Explain the purpose of the band blade guide
   8. Describe how to adjust blade guides
   9. Describe the annealing process
6. Explain how to use Drilling Machines
   1. Identify three basic drill press types and explain their differences and primary use
   2. Identify the various features of a twist drill
   3. Explain the procedure for sharpening a twist drill
   4. Determine the correct drilling speeds for five given drill diameters
   5. Describe how the surface finish of a hole affects its accuracy
   6. Explain how the cutting speed compare between drilling and reaming for the same size and material
7. Demonstrate a knowledge of the proper care and how to use Pedestal grinding machines
   1. Describe the use of pedestal grinder
   2. Explain the term “ring test” on grinding wheel
   3. Discuss the safety steps in using a pedestal grinder 
8. Explain the parts of the Turning Machines
   1. Identify the most important parts of a lathe and their functions
   2. Identify standard, quick-change and turret-type toolholders mounted on a lathe carriage
   3. Describe the type of tooling used on the tailstock
9. Demonstrate a knowledge of cutting tools
   1. Explain the purpose of rake and relief angles
   2. Describe the function of form tools
   3. Name the advantages of using high-speed steel for tools
   4. Explain when zero or negative rake should be used
   5. Describe what is the most important aspect of a lathe tool other than hardness or toughness
10. Demonstrate a understanding of work holding devises
    1. Explain the uses and care of independent and universal chucks
    2. Explain the limitation and advantages of a collet
    3. Describe a collet setup
    4. Explain the uses and differences of drive and face plates
11. Demonstrate a understanding of the carriage
    1. Describe the relationship between longitudinal feeds and cross feeds
    2. State the differences in types of cross feed screw micrometer collars
    3. Describe the use of various feed levers
    4. Explain how to set up to make facing cuts to a given depth and how to measure them
12. Demonstrate knowledge of center drilling in a lathe
    1. Determine proper speed and feed for a given material and size
    2. Name two reasons for center drilling a work piece in the lathe
    3. Explain two causes of center drill breakage
    4. Describe what happens when you drill too deeply with a center drill
13. Demonstrate knowledge of turning in a lathe
    1. Describe the correct setup procedure for turning between centers
    2. Select correct feeds and speeds for turning operation
    3. Detail the steps necessary for turning to size predictably
    4. Explain the procedures for drilling, boring, reaming, knurling
14. Demonstrate an understanding of thread cutting on a lathe recessing, parting and tapping in a lathe
    1. Describe the several 60-degree thread forms, noting their similarities and differences
    2. Calculate thread depth, in feeds, and minor diameters of threads
    3. Describe how the number of threads per inch can be checked
    4. How fast should a spindle be turning for threading
    5. Explain the procedure for cutting left hand threads
    6. If for some reason it becomes necessary to temporarily remove the tool or the entire threading setup before a thread is completed, describe what procedure is needed when you are ready to finish the thread
15. Demonstrate knowledge of work support devises
    1. Identify the parts of a steady rest
    2. Explain the correct use of the follower rest
    3. When should a steady rest be used