Resistance & Solid State Welding Processes Diploma Question Paper : annamalaiuniversity.ac.in
Name of the University : Annamalai University
Department : Welding Engineering And Technology
Degree : Diploma
Subject Name : Resistance And Solid State Welding Processes
Website : annamalaiuniversity.ac.in
Document Type : Old Question Paper
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Resistance & Solid State Welding Processes :
Diploma Examination December 2013. : (Welding Engineering And Technology)
Time : Three hours
Maximum : 100 marks
Related : Annamalai University Fusion Welding Processes Diploma Question Paper : www.pdfquestion.in/6108.html
Answer any FIVE questions. : (5 * 20 = 100)
All questions carry equal marks. :
1. (a) Explain the principle and process variables incurred in electric resistance welding.
(b) Explain the variants of resistance Spot welding and explain any one detail.
2. (a) Explain in detail about various types of wheel electrodes used in seam welding.
(b) Discuss cycle time for projection welding with a neat sketch.
3. (a) With a neat sketch, explain flash butt welding and their real time applications?
(b) What are the advantages, limitations and future scope of flash butt welding?
4. (a) Briefly discuss the various methods of achieving diffusion bonding.
(b) Explain the operating principle of ultrasonic welding and its applications in industries.
5. (a) Explain a process with a neat sketch to weld ductile metal.
(b) Write short notes for friction welding :
(i) Axial pressure
(ii) Heating time and
(iii) Rotational speed.
6. (a) Write short notes on :
(i) Heat Shrinkage in spot welding and
(ii) Heat balance in spot welding
(b) What is upset butt welding? What are the advantages, limitations and applications?
7. (a) Discuss the equipment details and principle involved in explosive welding.
(b) Briefly discuss the various applications of projection welding and its limitations.
8. (a) Explain the principle involved in friction welding. List the materials that can be mated by friction welding.
(b) Compare spot welding and seam welding processes.
Diploma Examination, 2013 :
Answer any FIVE questions : (5×20=100)
All question carry equal marks :
1. a) Explain the various types of spot welder power sources.
b) Explain the various types of spot welding electrodes and explain any one in detail.
2. a) Explain in detail about weldability in resistance welding.
b) Discuss the variants of resistance seam welding.
3. a) With a neat sketch, explain upset butt welding and their real time applications.
b) What are the advantages, limitations and future scope of percussion welding?
4. a) Briefly discuss the various process parameters and bond quality achieved by diffusion bonding.
b) Explain the operating principle of explosive welding and its mechanism.
5. a) Explain inertia welding with a neat sketch.
b) Write short notes on variants of friction welding.
6. a) List the advantages, application and limitations of resistance welding.
b) What is spot welding? What are its advantages, limitations and applications?
7. a) Discuss in detail about different stages in explosive welding.
b) Briefly discuss the various applications of inertia welding and its limitations.
8. a) Explain in detail about friction welding joint and its properties.
b) Compare ultrasonic welding and explosive welding processes.
Diploma Examination – 2012 :
All questions carry equal marks :
Answer any Five questions: (5 * 20 = 100) .
a) Explain the advantages and limitations of electric resistance welding. (10)
b) Write short notes on power sources for spot welding. (10)
2. a) Explain the equipment used and the principle and operation of projection welding. (10)
b) What are the limitations and applications of seam welding? (10)
3. a) Explain the process variables, advantages, limitations and applications of percussion welding? (10)
b) Compare Flash butt welding and Upset butt welding.
4. a) What is ultrasonic welding? Explain the principle of operation of ultrasonic welding?
b) Explain the advantages, limitations and applications of diffusion bonding. (10+10)
5. a) What are the operational steps in friction welding and inertia welding? (10)
b) What is cold pressure welding? Explain the mechanism and process variables. (10)
6. a) With neat sketch explain Heat shrinkage in spot welding. (10)
b) Compare spot welding and seam welding processes. (10)
7. a) Explain the process parameters and metals welded in Upset butt welding. (10)
b) What are the two common arrangements used to produce explosive welds. (10)
8. a) What are the advantages, limitations and applications of friction welding process. (10)
b) Explain heat balance in spot welding. (10)