9.21 Chapter Conclusion
Micky R. Jennings
Summary
Manual milling machines are capable of many different operations. With each part the operator creates, they will be able to gain experience and become familiar with the milling machine and its components. Starting small and on parts with looser tolerances is a good way to build confidence. Operations like facing and side milling are a basic first step before more technical operations like angle milling and indexing are attempted. An in-industry machinist will be able to efficiently perform all the operations indicated in this chapter. Knowing the milling operations, how they are performed, and how to troubleshoot the problems that arise are important steps toward upper-level positions in a machine shop, such as a CNC programmer.
Review Questionss
- List the necessary safety precautions required to run a milling machine.
- Explain the capacity of a milling machine and how it is indicated using examples.
- Discuss the purpose of the main parts of a milling machine.
- Describe the process of setting speeds and feeds on a milling machine.
- Describe, with examples, how to calculate spindle speed on a milling machine.
- Explain how feed on a milling machine is expressed.
- Describe the difference in feed for roughing and finishing cuts.
- Explain how to determine the depth of cut to be used on a job.
- Describe, in detail, the facing and block squaring processes.
- Describe the use of parallels and angle blocks.
- List and describe the use of various types of milling tools.
- Explain the process of hole making on a milling machine.
- Describe the process of boring on a milling machine.
- Explain the concept of a form-turning tool.
- Describe the difference between conventional and climb milling and when it might be appropriate to use each.
- List the steps involved in loading a tool into the spindle of a milling machine
- Discuss the process of tramming in the head of a milling machine.
- Describe an edge finder and how to use one.
- Discuss indexing and the difference between direct, simple, and angular indexing.
- Describe a slitting saw and how one is used on a milling machine.
- List the different ways to cut angles on a milling machine and the advantages of each.
- Discuss the similarities between cutting a slot and cutting a pocket.
- Describe the process of aligning a milling vise.