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

Piezoelectric accelerometer, Piezoelectric Accelerometer Piezoelectric ...

Piezoelectric Accelerometer Piezoelectric accelerometers are widely used for vibration measurements due to their low cost and very wide frequency range for which the sensitivit

Torsional divergence, Torsional Divergence Lets first try to explain a...

Torsional Divergence Lets first try to explain and interpret torsional divergence for the aerofoil structural model physically. An additional figure describing the mechanical s

Strain energy release rate , The energy release rate, often denoted by G, i...

The energy release rate, often denoted by G, is the amount of energy per unit area that is supplied by the elastic energy in the body and loading system in creating a new fracture

Thermodynamics, original temp. of plate is 25 degree c.when put in burnace ...

original temp. of plate is 25 degree c.when put in burnace its upper part is 250 c and lower is 100 and mass is 56kg.find out heat transfer

Types of patterns in manufacturing, Types of patterns : These  depends upo...

Types of patterns : These  depends upon many factors like the bulk of casting, type of moulding processes, number of castings required and the anticipated difficulty of moulding,

Homework, name the functions of the CIPM

name the functions of the CIPM

Bipolar ic construction, BIPOLAR IC CONSTRUCTION: As mentioned earlier,...

BIPOLAR IC CONSTRUCTION: As mentioned earlier, the components that are commonly used in IC's are diodes, Transistors, resistors and capacitors.  Diffusing impurities into se

Material science and engineeing, cite advantages of forming metal by extrus...

cite advantages of forming metal by extrusion as opposed to rolling

Function ismember - set operations, function ismember - set operations: ...

function ismember - set operations: The function ismember receives two vectors as input arguments, and returns a logical vector which is of similar length as the first argumen

Principles of suveying, the true length of a line is known to be 500m.the ...

the true length of a line is known to be 500m.the line was again measured with a 20m tape and found to be 502m,what is the correct length of the 20m tape.

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