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10.22 Chapter Conclusion

Micky R. Jennings

Summary

Manual lathes are capable of many different operations. With each part the operator creates, they will be able to gain experience and become familiar with the lathe and its workings. Starting small and on parts with looser tolerances is a good way to build confidence. Operations like facing and turning are a basic first step before more technical operations like taper turning and threading are attempted. A machinist in industry will be able to efficiently perform all the operations indicated in this chapter. Knowing the turning operations, how they are performed, and how to troubleshoot the problems that arise are important steps to upper level positions in a machine shop, such as that of a CNC programmer.

Review Questions

  1. List the necessary safety precautions required to run a lathe.
  2. Explain the capacity of a lathe and how it is indicated using examples.
  3. Discuss the purpose of the main parts of an engine lathe.
  4. Describe the process of setting speeds and feeds on a lathe.
  5. Describe, with examples, how to calculate spindle speed on a lathe.
  6. Explain how feed on a lathe is expressed.
  7. Describe the difference in feed for roughing and finishing cuts.
  8. Explain how to determine the depth of cut to be used on a job.
  9. Describe the use of lathe centers.
  10. Describe the difference between a 3 jaw and 4 jaw chuck and their uses.
  11. List and describe the use of various types of lathe cutting tools.
  12. Explain quick change tooling.
  13. Discuss the process of removing and mounting a chuck on a manual lathe.
  14. Explain the process of removing jaws, cleaning the 3 and 4 jaw chucks, and replacing the jaws.
  15. Describe, in detail, the facing and turning process of work in a chuck.
  16. Explain the process of drilling a hole on a lathe.
  17. Describe the process of boring on a lathe.
  18. Describe reaming on a lathe.
  19. Discuss tapping on a lathe.
  20. Discuss various knurling forms.
  21. Describe the process of setting up a scissor knurling tool.
  22. Describe the process of cutting a square groove.
  23. Explain the concept of a form-turning tool.

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