COMPUTER AIDED MANUFACTURING LABORATORY(VI SEMESTER)

VIVA-VOCE QUESTIONS

CAD/CAM INTERFACE

1. How does IT facilitate Concurrent Engineering?2. Distinguish sequential Engineering and Concurrent Engineering. 3. Mention the various stages during the process of Product development.4. List the factors influencing the Product development.5. Define group technology.6. Define CAD/CAM Interface.7. State Rapid prototype.8. Distinguish CNC and DNC9. Define Part family.10. State any four applications of concurrent engineering.11. What is the basis for forming groups in group technology? 12. State the basic steps involved in the design procedure. 13. Differentiate between conventional and CAM type of manufacturing.14. Why rapid prototyping used? Name some rapid prototyping process you are familiar with. 15. State any four applications of concurrent engineering.

FUNDAMENTALS OF CNC MACHINES

1. Distinguish CNC and DNC2 Write the basic components in CNC system3. Mention the components in MCU.4. List the advantages and limitations of CNC machines.5. Distinguish CNC and DNC.6. Define Interpolation.7. Name the various types of CNC controllers.8. Mention the various types of motion control system in CNC.9. List the limitations of CNC.10. What are the types of Interpolator?11. Differentiate open loop and closed loop control system.12. State DNC.

CONSTRUCTION FEATURES OF CNC MACHINES

1. What are the design criteria to be used in designing CNC machine tools?2. Write the functions of slide ways.3. What is the feedback devices used in CNC systems?4. State tool change cycle.5. List out the classification of position feedback devices.6. What are the advantages of ball screw slide ways?7. List out the requirements of a CNC feed drive.8. What are the types of motors used in CNC system?9. Write the classifications of tool holding device.10. Define Feed drive and write the different types of feed drives

PART PROGRAMMING FOR CNC MACHINE

1. Name the different types of tape programming format.2. Write the structure of word address format.3. Differentiate between 2 1/2 axes and 3 axes machine.4. Explain the function of codes of G28 and M30 (FANUC).5. How tapes are standardized? List some of them.6. State the function of post processor in CAPP. 7. List out some of the important NC languages.8. What are the four statements used in APT language? 9. List the motion command words used in achieving path commands. 10. What are the modifiers used with motion command words? 11. What are the modifiers used with motion command words? 12. List any four post processor statements. 13. What is the role of computer aided part programming? 14. Sketch the APT geometry for the following

PL1= PLANE/P4, PARLEL, PL2 L1= LINE/P1, ATANGL, 20

COMPUTER AIDED PROCESS PLANNING AND DATA BASE FOR CAM

1. Define CAPP.2. Write the purpose of data operators ‘select’ and ‘join’.3. Distinguish underlying concepts of variant and generative CAPP system.4. List some important features of DBMS.5. Define CMPP.6. Classify data models. 7. List some commercial variant and generative CAPP software systems. 8. Define the terms database and data model. 9. What is the use of data definition language (DDL) and data manipulation language (DML)? 10. Classify data models. 11. What is a hierarchical data model? 12. What is an object - oriented database system? 13. What are data associations? 14. List various relational database operators. 15. Write the purpose of data operators “select” and “join”. 16. List some important features of DBMS.