Define heat for electrical resistance welding, Mechanical Engineering

Assignment Help:

Q. Define Heat for electrical resistance welding?

The heat, H for electrical resistance welding is generated by passing a large electrical current ( of the order of 3000 to 100,000 Amps with a voltage between 1 and 25 volts) through two pieces of metal that are touching each other.

H=I2 RT

Where H is the heat generated indicated in joules,

I is the current in root-mean-square amperes, R is the resistance in ohms,.

T is the time (from fraction of a second Tc a few seconds) of current flow through the pieces to be welded.


Related Discussions:- Define heat for electrical resistance welding

Cad, nc & cnc machines

nc & cnc machines

Copper-lead alloys, Copper-Lead Alloys Copper-lead alloys, having a la...

Copper-Lead Alloys Copper-lead alloys, having a large percentage of lead have determined a considerable employ as bearing material lately. Straight, copper-lead alloys of such

Basic concept of general description of a motorcycle , Basic Concept: Like...

Basic Concept: Like any fine machine a motorcycle can be split into various systems like lubrication system, transmission system, electrical system, etc. It is important that a

Specific heat - thermodynamics, Specifi c Heat: The specific Heat of ...

Specifi c Heat: The specific Heat of a solid or liquid can be usually defined as heat required for raising unit mass through one degree temperature rise. That is,   dQ = m

Equilibrium diagram, what do understand by the term equilibrium diagram

what do understand by the term equilibrium diagram

State of motion of body change with force, State of motion of body change w...

State of motion of body change with force: A body on contact with the surface is being pulled along it with the increasing force from zero. How does the state of motion of bo

Quantum mechanics, A ball is dropped from a height .If it takes0.200 second...

A ball is dropped from a height .If it takes0.200 second to cross the last 6.00 m before hitting the ground ,find the height  from which it was dropped . Ans) We need to find H

Types of brake , Types of Brake The brakes used in motorcycles can be ...

Types of Brake The brakes used in motorcycles can be classified as follows: (a) Drum Brake (b) Disc Brake

Thermosetting plastics, Q. What do you mean by Thermosetting plastics? ...

Q. What do you mean by Thermosetting plastics? This plastic undergoes a number of chemical changes on heating and cure to infusible and practically insoluble articles. The chem

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd