Sheet Metal Fabrication — Summer 2018

Draw pattern development of object shown in Fig.-1.

Explain different metal used in sheet metal work.

List different press working Dies and Explain any three with neat sketch.

What is stock layout in press working? Explain different factor effecting stock layout.

Define the soldering process. Explain principles of good soldering process.

Write definition of brazing and Explain its principle of operation with neat sketch.

List different brazing process and Explain torch brazing process with neat sketch.

Define “Gas Welding Process” and Explain its principle of operation with neat sketch.

Explain chemistry of oxy-acetylene flame.

Write advantages, limitation and application of gas welding process.

Comparing soldering, brazing & gas welding process in table Form.

Q. 4 (a) Write definition of spot welding and Explain procedure of spot welding with neat sketch.

Write definition of seam welding and Explain principle of operation with neat sketch.

Explain resistance welding cycle with neat sketch

Explain different types of screw locking devices with neat sketch

Explain screwed thread terminology with neat sketch.

List different application of sheet metal work and Explain any two with neat sketch. 1/2 All Dimensions are in mm Fig – 1 Que 1-(A) 2/2