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Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Laser spot welding using NdYAG laser system

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Performance of Laser spot welding process is affected by

a: Welding speed Explanation

Explanation

b: Focal length of the beam and focusing lens Explanation

Explanation

c: Work piece position Explanation

Explanation

d: All of the above Explanation

Explanation

Which of the following conditions need to be satisfied in laser spot-welding?

a: Highly accurate positioning of the components Explanation

Explanation

b: Accurate positioning of the components Explanation

Explanation

c: in the focus of the laser to prevent large variations in the irradiance Explanation

Explanation

d: All of the above Explanation

Explanation

Which welding technique includes spot welding modes: conduction and penetration?

a: Resistance Welding Explanation

Explanation

b: Laser Welding Explanation

Explanation

c: MIG welding Explanation

Explanation

d: TIG Welding Explanation

Explanation

Laser cannot effectively machine

a: Refractory materials. Explanation

Explanation

b: WC (Tungsten carbides). Explanation

Explanation

c: Copper and Aluminium Explanation

Explanation

d: Steels Explanation

Explanation

Can we consider Lazeranko’s thermal model for laser beam or electron beam heating?

a: Yes Explanation

Explanation

b: No Explanation

Explanation

c: Either of them Explanation

Explanation

d: Yes with Modifications Explanation

Explanation

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