Manufacturing and Industrial Engineering - GATE practice papers - Mechanical for Q. 391

Q.  Which type of material is difficult to spot weld? (Marks: 02)
- Published on 19 Oct 15

a. highly resistive materials
b. highly conductive materials
c. both a. and b.
d. none of the above

ANSWER: highly conductive materials
 
Spot welding requires maximum resistance at the surface of two parts to be joined. Thus spot welding process is difficult for highly conductive materials

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