Spot welding, Other Engineering

Assignment Help:

In spot welding, the parts to be joined are normally over lapped. The work piece are clamped between two water cooled copper electrodes. On the passage of a high transient current, the interface melts over a spot and form the weld. The cooling at the electrode limits the size of the spot. A very high current is needed for a very short duration to complete the welding. The interfaces to be joined are initially cleaned by various methods, including scratch brushing and vapour decreasing. A spot weld normally contains some porosity at the weld centre, which unless excessive is harmless.

The spot welding process is difficult to use for highly conductive materials such as aluminum and magnesium. 


Related Discussions:- Spot welding

Derive, derive the power in case of r-l circuit

derive the power in case of r-l circuit

PLC, True or False, In a PLC system, there is a physical connection between...

True or False, In a PLC system, there is a physical connection between field input devices and output devices.

Alternative escape routes - means of escape, Alternative escape routes: ...

Alternative escape routes: Does everyone have access to the alternative routes or do some people have no choice about which way they go? Are all the escape routes

Restoration of clipped speech signal, Restoration of clipped speech signal ...

Restoration of clipped speech signal using linear prediction

Turbo shaft engines - aircraft engine , Turbo shaft engines : Gas turbi...

Turbo shaft engines : Gas turbine engines that deliver power through a shaft to operate something other than a propeller are referred to as turboshaft engines. In most cases th

Finance choice, Question #1 Which of the following statements is false? ...

Question #1 Which of the following statements is false? A) For corporations, interest paid on its debt is a tax deductible expense. B) For corporations, dividend paid on its

.quantifying financial risk, What is the standard deviation of return if we...

What is the standard deviation of return if we have the following two possible outcomes: a rise of 8.00 per cent with 0.58 probability or a fall of -6.00 per cent?

Problem, the royal canadian hillies plan to locate a brandy carryout in the...

the royal canadian hillies plan to locate a brandy carryout in the Yukan.A number of saint Bernard dogs ,trained by sergeant preston ,will be used to rescue lost tourists looking f

Equivalent shaft horsepower - aircraft maintenance , Equivalent Shaft Horse...

Equivalent Shaft Horsepower (EHP) In practice there is always a certain amount of jet thrust in the total output of the turbo-propeller engine and this must be added to the s.h

Android, need help correcting an error on running the developed app it doe...

need help correcting an error on running the developed app it doesnt show the fetched output from internet ?

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