GATE ME 2025 Set 1 — Question 21

MCQ+1 / -0.33EasyWelding ProcessesJoiningManufacturing Processes

Manufacturing Processes → Joining → Welding Processes

Last updated 5 September 2026

Question

The welding process commonly used for fabricating tailor-welded blanks of dissimilar thickness for automotive applications is

Correct answer (B) laser welding Solution Tailor-welded blanks (TWBs) consist of steel or aluminum sheets of different thicknesses, grades, or coatings welded together before stamping. Laser welding is the preferred process for this application because it provides a high power density, resulting in a very narrow heat-affected zone (HAZ), minimal thermal distortion, and high welding speeds, which are essential for maintaining the structural integrity and precision required in automotive body components. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (B) laser welding Solution Tailor-welded blanks (TWBs) consist of steel or aluminum sheets of different thicknesses, grades, or coatings welded together before stamping. Laser welding is the preferred process for this application because it provides a high power density, resulting in a very narrow heat-affected zone (HAZ), minimal thermal distortion, and high welding speeds, which are essential for maintaining the structural integrity and precision required in automotive body components.

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