Leaving Certificate Engineering

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Machining Examination Yippi!!
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Answer all of the following questions. Be short and concise.

1. Name the three main types of chip produced as swarf when machining?

2. What type of chip is produced when machining brittle materials?

3. What chip type is produced if some of the chip becomes welded to                            the face of the cutting tool?

4. List three safety precautions which should be observed when machining                      using a centre lathe.

5. List  the three main angles of a single point cutting tool.

6. How is friction reduced during a cutting operation?

7. What shape work is usually produced on a centre lathe?

8. What machining characteristics would be desirable when using a CNC                  lathe,   i.e. what chip type, and why?

9. Name the three  forces acting on a cutting tool during a turning process.

10. Which force is usually the largest in a turning operation?

11. Which force acts down on the top face of the cutting tool and what does                       it tend to do?

12. What is the name of the force which resists movement towards or away                  from the chuck?

13. What type of cutting takes place when three forces act on a cutting tool                  during a turning operation?

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Paddy Keays Engineering Teacher	Cresent College Comprehensive Limerick. Ireland
Last updated April 14th 2005..	Comments to:-   email   paddykeays@eircom.net