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RCISES 7.1. Name five factors that enter into the decision to manufacture a part by CNC operations. 7.2. a. What is methodizing? b. In a large shop the person is responsible for th is job, whereas in a small shop it is the person. 7.3. a. What is the purpose of the operations sheet? b. List three specifications that can be given in the operations sheet. 7.4. List three factors that must be considered when selecting a CNC machine for an operation. 7.5. Does the programmer or the setup person carry out each of the following CNC shop activities? a. Planning operations for part manufacture b. Fixture design c. Loading fixture and part into the CNC machine d. Specifying tooling required e. Entering the part program into the MCU f. Determining the part origin and tool change position g. Entering the location of the part origin and tool length offsets into the MCU h. Testing and prove-out of the part program 7.6. a. What are three important functions provided by the work-holding device? 7.7. a. What is the purpose of the setup sheet? 7.8. a. What is the purpose of the CNC tool and operations sheet? b. Name three types of work-holding devices used for milling operations. b. List four important specifications contained in the setup sheet. b. List four important specifications contained in the tool and operations sheet. 7.9. List all the items that must be delivered to the CNC machine in preparation for setting up a job. 7.10. Define the terms machine home, part origin, and tool change position. 7.11. Describe three methods by which the setup person can locate the part origin. 7.12. a. What is the tool length offset? b. How is the tool length offset measured? 7.13. Explain the purpose of each of the following tests: a. MCU run with the CNC machine locked b. Dry run c. Test part run 7.14. What three important criteria must a part program satisfy in order to qualify for use in production runs