Manufacturing Processes - Welding
GATE Mechanical Engineering · 5 questions across 5 years (2018-2025) · 13% recurrence rate
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All 5 questions on Manufacturing Processes - Welding
The welding process commonly used for fabricating tailor-welded blanks of dissimilar thickness for automotive applications is
In an arc welding process, the voltage and current are 30 V and 200 A, respectively. The cross-sectional area of the joint is 20 mm² and the welding speed is 5 mm/s. The heat required to melt the material is 20 J/s. The...
The resistance spot welding of two 1.55 mm thick metal sheets is performed using welding current of 10000 A for 0.25 s. The contact resistance at the interface of the metal sheets is 0.0001 Ω. The volume of weld nugget f...
Which one of the following welding methods provides the highest heat flux (W/mm²)?
In an arc welding process, welding speed is doubled. Assuming all other process parameters to be constant, the cross sectional area of the weld bead will