https://uadoc.uacdn.net/doubts/JB2NSEEW0V/1636589872XAGWRHIP.JPEG

Uncademy
The volume of a weld nugget produced by spot welding
process is 80 mm). Welding is performed using 10000 A
current. Energy required for melting of unit volume of metal
is 10 J/mm3. Assume that heat lost to the surrounding base
metal is 500 J and contact resistance is 0.0002 ohms.
Calculate the (i) time (in sec) for which the welding current is
supplied, and (ii) thermal efficiency of the spot welding
process if other heat losses are negligible.
31


English

Educator solution

Mechanical Engineering

GATE & ESE - ME, CH & XE

GATE, ESE and SSC JE

Ace the toughest competitive and government exams in India 

Doubt solution

Doubt details

Mechanical Engineering

AUTO-GENERATED

Solutions available

Educator solution