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

Duct with flow control-aircraft maintenance, Duct With Flow Control-Aircraf...

Duct With Flow Control-Aircraft maintenance: BERNOULLI'S THEOREM This theorem can be related to the relationship between pressure and velocity existing in the air flowing

Problem, The following exchange rates are available to you. (You can buy or...

The following exchange rates are available to you. (You can buy or sell at the stated rates.) Mt. Fuji Bank ¥85.00/$ Mt. Rushmore Bank SF1.356/$ Mt. Blanc Bank ¥64.74/SF Assume t

State vectors , State Vectors  In engineering - particularly control...

State Vectors  In engineering - particularly control engineering - most systems are represented by a state vector.  - The state vector contains all of the relevant qua

Crystal structure, how can we determine the crystal structure of material b...

how can we determine the crystal structure of material by having interplanar spacing d?

Java, 2. Differentiate between stream oriented and data gram oriented socke...

2. Differentiate between stream oriented and data gram oriented socket in java?

Common faults - fire safety management, Common faults - Fire safety managem...

Common faults - Fire safety management: Common faults found are: Combustible items left in protected routes Locked exits Fire doors wedged open Exits obstru

Water treatment plant , i need to design a water treatment plant with raw w...

i need to design a water treatment plant with raw water entering ph of 10 and needs to have a ph of 7 when leaving the treatment process the rate of flow 260lt/sec

Designing a phone, hi um how do people design phones and stuff like da

hi um how do people design phones and stuff like da

Hot and cold working, the amount of cold working metal can withstand is dir...

the amount of cold working metal can withstand is directly related to which properties? name two and also discuss the effect that cold working has upon these properties?

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