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Introduction to Machining Processes

Course NumberMS 113
Credits2
Lab Hours30
Lecture Hours30
Course DescriptionIntroduces the manufacturing facility. Utilizes safety, materials, hand tools, precision instruments, drill presses, lathes, mills, grinders, and saws. (30-30)


Outcomes and Objectives

Practice safe working habits.
Objectives:
  1. Identify proper work attire and personal protection items
  2. Demonstrate safe work habits when operating equipment.

Demonstrate knowledge of semi-precision and precision measuring tools.
Objectives:
  1. Demonstrate the proper use and care of measuring tools.
  2. Measure accurately to a tolerance of .0001" given a set of mic's.
  3. Select and stack Gage blocks to a given dimension.
  4. Select and use indicators for specific task.

Understand and perform basic layout and benchwork techniques.
Objectives:
  1. Select proper layout tool for a given task.
  2. Demonstrate proper care and handling of layout tools.
  3. Describe the purpose of layout and benchwork operations.
  4. List common benchwork operations.
  5. Describe the advantages of layout.
  6. Match the type of layout tools with their descriptions.
  7. Describe the procedures for the following bench operations for the sample part.
    1. Filing.
    2. Hand tap.
    3. Hand ream.

Identify various kinds and uses of sawing machines.
Objectives:
  1. Select the proper blade for a particular material to be cut.
  2. Cut various shapes using power band saws and hand hack saws.
  3. Describe the basic sawing process.
  4. Name the parts of a saw blade and a saw blade tooth.
  5. Describe the properties needed for saw blade materials.
  6. Understand the factors that determine tooth spacing.
  7. Explain the importance of blade break-in.

Identify various kinds of drilling machines.
Objectives:
  1. Match listed types of drilling machine with lettered illustration of each.
  2. Select the best machine for the job.
    1. Select best type of machine for a particular job.
    2. Select the proper blade for a particular material to be cut.
    3. Cut various shapes using power band saws and hand hack saws.

Identify and perform various drilling operations.
Objectives:
  1. Drill holes with a center line tolerance of 1/64”.
  2. Adjust the speed to the desired setting on belt drive, geared drive, and variable speed drive drill press.
  3. Select proper tools for various drilling applications.
  4. Describe hand tapping.
  5. Explain the purpose of the sequence of hand taps.
  6. Describe the steps necessary to perform the following operations on the sample workpiece.
    1. Drilling.
    2. Reaming.
    3. Counter boring.
    4. Counter sinking.
    5. Tapping.

Perform common operations on an engine lathe.
Objectives:
  1. List four of the basic operations done on an engine lathe.
  2. Identify, on a drawing or picture, three different types of lathe work holding devices.
  3. Calculate the correct rpm, given the fpm and the diameter, using the cutting speed formula.
  4. Demonstrate how to properly set a quick-change gear box for a particular feed or thread.
  5. Set up and turn diameters, shoulders, undercuts and threads.
  6. Describe the lathe using proper terminology.
  7. Identify the different types of lathes.
  8. Describe the dimensions that determine the size of the lathe.
  9. Describe the role of the various parts of the machine.
    1. Headstock.
    2. Spindle.
    3. Lathe bed.
    4. Carriage.
    5. Tailstock.
  10. Describe common types of toolholders.
  11. Describe common types of cutting tools.
  12. Describe common types of workholding devices.
  13. List common types of OD cutting operations.
  14. List common types of ID cutting operations.
  15. Describe the following common engine lathe operations.
    1. Facing.
    2. Center drilling.
    3. Drilling.
    4. Boring.
    5. Turning.
    6. Parting.
  16. Describe common factors to consider when setting up stock in the lathe.
  17. List the steps necessary to drill the sample part with a 3/4 inch drill.
  18. Describe how to establish tool location on the sample part during the boring operation.

Recognize a variety of milling machines.
Objectives:
  1. Identify correctly the type of milling machine with an accuracy of 85% given a series of pictures.
  2. Describe the mill.
  3. Identify the different types of mills.
  4. Identify the components of the vertical column and knee milling machine.

Identify various milling cutters.
Objectives:
  1. Name and give typical uses of milling cutters after being given illustrations.

Operate a milling machine correctly.
Objectives:
  1. Demonstrate a variety of different machining skills by completing assigned projects to specifications.
  2. Select proper speeds for specific machining operations.
  3. Select proper work holding devices.
  4. Use precision measuring instruments to measure to tolerances of .002”.
  5. Describe the various components of the mill and their roles.
    1. Column.
    2. Knee.
    3. Speed controls.
    4. Mill table.
  6. Identify different types of mills.
  7. Identify the components of the vertical column and knee milling machine.
  8. Describe the relationship of the speed controls on the mill head.
  9. Describe the relationship of the feed controls on the mill head.
  10. Describe the components used to adjust spindle depth.
  11. Describe the components of the mill table.
  12. Identify the different types of toolholders used on the mill.




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