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

Laser beam welding, In laser beam welding coalescence is produced by the he...

In laser beam welding coalescence is produced by the heat obtained from the application of a concentrated coherent light beam impining upon the surface to be joined .   It con

Matlab codes for extended kalman filter, I would like to have simple matlab...

I would like to have simple matlab codes for measuring the changes in amplitude and frequency of pure sinusoidal signal in a disturbed environment and subsequently to show the resu

Medical Optics, what are wavefronts and how are they useful in the field o...

what are wavefronts and how are they useful in the field of optics and medicine?

Finance, Let C(K) denote a European vanilla Call option with strike price K...

Let C(K) denote a European vanilla Call option with strike price K. Assume that all options are identical except for strike price, and strike prices satisfy (K1) What are the no-

Econometrics of Financial Derivatives, I''d like to receive a recommended b...

I''d like to receive a recommended book to be able to price fixed income derivatives when there is not already a martet to to calibrate models. I need to use econometrics book to e

Propeller control in aircraft engine, Propeller control : CONSTANT SPE...

Propeller control : CONSTANT SPEED UNIT: In the normal flight range, the main control of the propeller is exercised by the propeller control unit (PCU). MANUAL AND AU

Gated pattern, Gated pattern is used to produce good casting. It is esse...

Gated pattern is used to produce good casting. It is essential to make sure that full supply of molten metal flow into every part of the mould. Provision for easy passage of the

Testing of propellers, Testing After Install After installation of a pro...

Testing After Install After installation of a propeller, the engine must be ground run in order to check the propeller for correct function and operation.  Aircraft propeller in

Aerodynamics-flow model diagram , We will need to use several different flo...

We will need to use several different flow models as we go along. It is crucial to understand the simplifications used to obtain these models because these limit the validity of th

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