Metal Joining Technology — Summer 2022

Differentiate welding process in comparison with casting process and forming process.

Differentiate between welding with brazing process.

Define metal joining process. Classify welding process based on following criteria. (a) Type of joint (b) Types of energy (c) Power density (d) Types of principle

What is the function of filler material in welding process?

Differentiate straight and reverse polarity in the arc welding process.

Differentiate arc and gas welding process. Explain the various types of flame in gas welding with neat sketch.

Explain the welding techniques used in gas welding process with neat sketch.

Draw any six welding symbol.

Explain working principle of TIG welding process with neat sketch.

Explain the following welding defects with neat sketch.

porosity (b) lack of penetration (c) distortion

Draw the fundamental types of joints.

Explain the working principle of MIG welding with neat sketch.

Enlist various NDT used to detect defects in welding. Explain any one with neat sketch.

Differentiate spot and seam welding process.

Explain the concept of shunting effect in resistance welding process.

Explain electro slag welding process in detail with neat sketch.

Define the following term: (a) Resistance (b) Current (c) Time

Explain the working principle of resistance welding process.

Explain the working principle of SAW process with neat sketch. Also state the advantages and limitations of the process.1

What is the primary functions of following parameters in the solid state welding process? (a) Pressure (b) Heat

Discuss the use of electrode and its types in the welding process.

Explain Thermit welding process with neat sketch. Also enlist the advantages and applications of the process.

What is the function of Inert gas in arc welding process?

Differentiate between Transferred arc and Non-transferred arc plasma welding process.

Explain atomic hydrogen welding process with neat sketch.