SUBJECT UNCONVENTIONAL MACHINING PROCESSES FACULTY Mr. G. Bharath Reddy, Assistant Professor (Section-A & B)YEAR B.TECH IV I-SEM

ASSIGNMENT QUESTIONS

UNIT – I1 Explain the reasons that lead to the development of Unconventional machining processes.2 Explain the Classification of modern machining processes.

3Describe the characteristic features of modern machining process that distinguish them from conventional machining process?

4 Discuss the factors to be considered while selecting a modern machining process?UNIT-II

1Define “ultrasonic" and describe the elements of Ultrasonic machining Process with a neat sketch.

2Describe the Mechanism of material removal in Ultrasonic machining process with a neat sketch.

3Describe different types of tool feed force mechanisms in ultrasonic machining with neat sketches.

4 Describe the process parameters that affect the metal removal rate in Ultrasonic machining

5With the help of a line diagram explain the constructional features of the horn used in ultrasonic machining process?

6 Explain the different types of abrasive used and their characteristics in USM.UNIT-III

1 Explain Abrasive Jet machining with a neat sketch? 2 Explain the merits, demerits and applications of Abrasive Jet Machining process.

3Describe the variables/process parameters that affect the metal removal rate in Abrasive jet machining.

4 With the help of a neat diagram explain the process of water jet machining?5 Describe the advantages, limitations and practical applications of water jet machining.6 With the help of a neat diagram explain the process of Abrasive water jet machining?

UNIT- IV1 Discuss the basic principle of Electro chemical machining using a neat sketch.

2Explain the functions and desirable properties of the electrolyte used in Electro chemical machining?

3Discuss about surface finish and accuracy obtained in electro chemical machining? List out the applications and advantages of chemical machining?

4Derive a theoretical relationship for the determination of the metal removal rate in Electro chemical machining?

5 With the help of a line diagram explain the process of electro-chemical grinding?6 What is chemical machining? How the material removal takes place in this process?7 What are the various resists (maskants) used in practice and mention their properties?8 What are the various Etchants used in chemical machining. Mention their characteristics?