JNTU Kakinada B-Tech 4-1 DESIGN FOR MANUFACTURE R13 March 2018 Question Paper

IV B.Tech I Semester Supplementary Examinations, February/March – 2018
DESIGN FOR MANUFACTURE (Mechanical Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Differentiate between DFM, DFA and DFMS. [4]
b) Explain on centre design with sketch. [4]
c) What is the effect of blow hole in design for casting? [4]
d) What is forging operation? [3]
e) What is the difference between drawing and deep drawing operation? [3]
f) Give the applications of injection molding process. [4]

PART ?B (3×16 = 48 Marks)2. a) Discuss briefly the basic principles of designing for economical production. [8]
b) List out and explain the general design rules for manufacturability. [8]

3. a) Discuss the applications of design for machining rules. [8]
b) What are the general problems we come across while designing for machining
operations? Explain how one can overcome those problems.
[8]

4. a) Discuss the general design considerations for casting process. [8]
b) What is the importance of solidification in casting process? Explain. [8]

5. Briefly explain the design guidelines for brazed joints. [16]

6. a) Explain design considerations affecting drawability. [8]
b) Illustrate the Keeler Goodman forging line diagram. [8]

7. a) Explain the design guide lines for plastic components. [8]
b) Discuss about the visco elastic and creep behavior in plastics. [8]

Code No: RT41038
Set No. 1
R13
1 of 1