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

The pitch change mechanism , THE PITCH CHANGE MECHANISM : The cylinder...

THE PITCH CHANGE MECHANISM : The cylinder backplate . The disc shaped backplate provides a mounting for the pitch change cylinder. This backplate fits in front of the propel

Basic principles - propeller, BASIC PRINCIPLES : The purpose of a prope...

BASIC PRINCIPLES : The purpose of a propeller is to convert the power developed by the engine into a useful force called 'Thrust'. This force must be equal to and opposite in

Need help with a financial management quiz, Would you be able to assit me w...

Would you be able to assit me with a 40 question, multiple chioice quiz today ?

Risk management, discuss the value of risk analysis and how the process can...

discuss the value of risk analysis and how the process can be used t derive project management decisions under conditions of uncertainty

Damage limits and repair in cold section inspection , Damage Limits and Rep...

Damage Limits and Repair Minor damage to compressor and fan blades may be repaired provided the damage is within the allowable limits established by the manufacturer in the AMM

Switching, name the switching schemes used in a digital exchange. how call ...

name the switching schemes used in a digital exchange. how call processing takes place?

Propeller track, PROPELLER TRACK An out of track propeller will suffer ...

PROPELLER TRACK An out of track propeller will suffer an imbalance caused by the Dynamic and Aerodynamic being out of balance. Propeller track is the path followed by a blad

Security Analysis & Portfolio management, ABC Ltd. has an investment opport...

ABC Ltd. has an investment opportunity available which will involve a capital outlay in each of the next 2 years and which will produce benefits during the following 3 years. A sum

Chemistry, explain elecrochemical series and give its applications

explain elecrochemical series and give its applications

Engineering physics, when same music is played in veena and violin , we sha...

when same music is played in veena and violin , we shall hear the sound of

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