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Resistance spot welding is performed on two plates of 1.5 mm thickness with 6 mm diameter electrode, using 15000 A current for a time duration of 0.25 sec. Assuming the interface resistance to be 0.0001 ohms. The heat generated to form the weld is
[ME 2001]
  • a)
    5625 W-sec        
  • b)
    8437 W-sec
  • c)
    22500 W-sec      
  • d)
    33750 W-sec
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Resistance spot welding is performed on two plates of 1.5 mm thickness...
t = 1.5mm, d = 6mm,I = 15000A, t = 0.25 sec
R = 0.000 1 Ω
H = I2 Rt
= 15000 × 0.0001 × 0.25 = 5625 W-sec
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Most Upvoted Answer
Resistance spot welding is performed on two plates of 1.5 mm thickness...
t = 1.5mm, d = 6mm,I = 15000A, t = 0.25 sec
R = 0.000 1 Ω
H = I2 Rt
= 15000 × 0.0001 × 0.25 = 5625 W-sec
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