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

How does plane diffraction grating forms a spectrum?, Q.  With necessary t...

Q.  With necessary theory explain the formation of spectrum by a plane transmission grating when composite light falls on it OR How does plane diffraction grating for

Creep, strain rate on creep

strain rate on creep

Fire prevention - fire risk assessment, Fire prevention - fire risk assessm...

Fire prevention - fire risk assessment: Fire prevention measures include: Reducing the combustible materials, Reducing the risk of ignition, Reducing

Explain the concept of error function, Question 1 Explain the concept of e...

Question 1 Explain the concept of error function Question 2 Obtain the Fourier transform for the following Single sided exponential signal Gate function Triangula

Public health eng, Design a sewer collection system incorporating flow rate...

Design a sewer collection system incorporating flow rates, pipe sizes and pipe slopes for the proposed residential development shown in the attached drawing. In your design, locat

Engineering economices, 2. A contractor has both a 3-cy and a 5-cy shovel i...

2. A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum size shovel that will excavate 400,000bcy of common earth in a minimum of 130 working d

Propeller terminology, PROPELLER TORQUE Propeller torque is produced by...

PROPELLER TORQUE Propeller torque is produced by the aerodynamic drag on the blades when in motion. Propeller torque acts in the plane of rotation and opposes engine torque.

Actuators , Actuators  The actuator consists of the control surfaces...

Actuators  The actuator consists of the control surfaces and associated servomechanisms, and is used to change the missile attitude and trajectory or flight path.

Structural Engineering, Hi, I need a help in structural engineering theis ...

Hi, I need a help in structural engineering theis work

Absolute return fund, What is Absolute Return Fund The absolute return stra...

What is Absolute Return Fund The absolute return strategies develop returns from active management with small or no underlying market exposure, seeking to achieve positive returns

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