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

Applications of De, What are the applications of de.moivres theorem in soft...

What are the applications of de.moivres theorem in software engineering,computer science,programming and computer engineering? if there are any applications,then,what are that?

Acoustic linings in aircraft engine, Acoustic linings in Aircraft engine: ...

Acoustic linings in Aircraft engine: One method of suppressing the noise from the fan stage of a high by-pass ratio engine is to incorporate a noise absorbent liner around the

Spot welding, In spot welding, the parts to be joined are normally over lap...

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,

Gas metal arc welding (gmaw), Gas metal arc welding (GMAW) is performed by ...

Gas metal arc welding (GMAW) is performed by using direct current reverse polarity as it gives both good cleaning action and fast filler metal deposition rates. A rather high weldi

Commercial buildings - fire protection engineering, Commercial buildings - ...

Commercial buildings - fire protection engineering: The term 'commercial buildings' refers to any buildings that are not residential buildings and that do not fall under the m

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

Propeller control in aircraft engine, Propeller control : CONSTANT SPE...

Propeller control : CONSTANT SPEED UNIT: In the normal flight range, the main control of the propeller is exercised by the propeller control unit (PCU). MANUAL AND AU

Polymers, what are the merits and demerits of free radical

what are the merits and demerits of free radical

Flight control -state estimators , State-estimators for continuous time lin...

State-estimators for continuous time linear systems The state space state and output equations of continuous time linear systems is of the form? x = Ax + Bu + v and y

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