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

Time value of money-inflation-interest rate-opportunity cost, Time Value of...

Time Value of Money Consider your cheese steak hoagie business. Assume that Phillies will win another World Series, and your business will be hired to serve a party that will

Npv of an mba, Create an excel spreadsheet estimating NPV of an MBA

Create an excel spreadsheet estimating NPV of an MBA

Circuit, I am looking for a circuit similar to a schmitt trigger which use ...

I am looking for a circuit similar to a schmitt trigger which use a varying capacitive input and provided a varying frequency output.

Re-heat system in aircraft engine, RE-HEAT (AFTER BURNING) Re-heat is a...

RE-HEAT (AFTER BURNING) Re-heat is a system fitted to a gas turbine engine as a means of increasing the total thrust. As much as twice the thrust can be obtained using reheat.

Fire risk assessment in usa - fire protection engineering, Fire risk assess...

Fire risk assessment in USA: The document NFPA 551:2010 is entitled Guide for the Evaluation of Fire Risk Assessments.   In this document is set out the American use of the

Technical drawing, career aspiration as a determinant to senior secondary ...

career aspiration as a determinant to senior secondary school students performance in Technical drawing.

Use of multicylinder engine, USE OF MULTICYLINDER ENGINE If, in a multi...

USE OF MULTICYLINDER ENGINE If, in a multi cylinder engine, power strokes are staggered, the limitation of flywheel can be overcome to a large extent. Torque diagram for 2 cyli

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