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

What is crossover rate?, What is crossover rate? They are produced by tw...

What is crossover rate? They are produced by two different but identical tasks. The cross-over amount is the points at which the two tasks obtain the same net provide value. Wit

Risk Decomposition, Analyze two stocks from an industry of your choice in t...

Analyze two stocks from an industry of your choice in terms of risk decomposition, specifically portfolio variance eq. You should pick 2 firms that you have a certain degree of fam

Engineering physics(find wavelenth of light), Interference fringes are prod...

Interference fringes are produced by fresnel''s biprism in the focal plane of an eyepiece 200 cm away from the slit.Two images of the slit that formed each of the two positions of

Electronic , how to work ever moll models

how to work ever moll models

Identify people at risk - fire risk assessment, Identify people at risk: ...

Identify people at risk: It is often easy to forget that there may be people in a building who cannot move as quickly as the rest of us.  They may be in a wheel chair, they ma

Dc load line for a diode , dc load line for a diode & same for circuit con...

dc load line for a diode & same for circuit consisting of supply voltage in series with resistance & diodes

Sprag clutch - aircraft engine, Sprag Clutch : Sprag clutches are used ...

Sprag Clutch : Sprag clutches are used to provide the disconnect mechanism between the starter motor and the engine. The clutch will transmit drive from the starter motor, but

Composite materials - rotational stability equations, Rotational stability ...

Rotational stability equations  The torque T applied to any rigid vehicle with moving c.g. is in general determined by T = ∂HVE/∂t|E + uvE ×MugE where E is the inertial a

Process control, I have an assignment which I need help with

I have an assignment which I need help with

Damping coefficint of canatrd of aircraft, what will be the methodology to ...

what will be the methodology to calculate pitching moment damping coefficient of canrad of aircraft

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