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

What is the difference between journal entry & ledger?, What is the differe...

What is the difference between JOURNAL ENTRY & LEDGER?  Journal is a journal of unique entrance. It is a journal where all the dealings of organization have been registered rela

Production system, Garden Variety Flower Shop uses 750 clay pots a month. ...

Garden Variety Flower Shop uses 750 clay pots a month. The pots are purchased at $2 each. Annual carrying costs are estimated to be 25 percent of cost, and ordering costs are $30

Active clearance control system, Active clearance control system The sy...

Active clearance control system The system provides fan discharge air for cooling the core compartment and the low-pressure turbine case. At low altitudes the core engine requ

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

Dsp, relationship between z plane and s plane in bilinear transformation me...

relationship between z plane and s plane in bilinear transformation method

INTERNATIONAL TRADE, AS A CONSULTANT YOU ARE REQUIRED TO HIGHLIGHT THE BASI...

AS A CONSULTANT YOU ARE REQUIRED TO HIGHLIGHT THE BASIS OF INTERNATIONAL AND SHOW WHY YOU WOULD RECOMMEND INTERNATIONAL TRADE TO THE GOVERNMENT OF GHANA

Shelf list filing - library management, Shelf List Filing   Shelf list ...

Shelf List Filing   Shelf list reflects the arrangement of documents in the library. That is to say, the classificatory arrangement of the documents in a library can be seen th

Gating system design, A gating system is usually made up of :           ...

A gating system is usually made up of :                         (i) Pouring basin                                          (ii) Sprue well                         (iii) Ru

thermodynamics, Steam enters in the turbine at 6 MPa and 450 deg C and exp...

Steam enters in the turbine at 6 MPa and 450 deg C and expands at some intermediate pressure 60 % of steam is extracted and remainder expands to 10 kPa at this Investigate the effe

Dynamic balancing principles - aircraft maintenance , Dynamic balancing pri...

Dynamic balancing principles: We must all be familiar with the effects of unbalance in one form or another, but perhaps the most common effect is that arising from wheel unbala

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