Electro gas welding, Mechanical Engineering

Assignment Help:

ELECTRO GAS WELDING


This process is an extension of MIG  I MAG welding, designed for single pass vertical welding of steel plates in the thickness range of 10 to 38 mm. The two plates are held vertically with a gap of 12 mm regardless of plate thickness. The wire electrode is introduced downwards into the cavity formed by two plates to be joined and two movable water-cooled copper chill blocks. The cavity is kept free of air by the shielding gas usually a mixture of argon and CO2. Wire diameter may vary from 1.6 mm to 2.4 mm. The welding head is suspended from elevator mechanism, which provides automatic control of vertical travel speed during welding. The welding head is automatically raised as the molten metal is building up. The welding is completely automatic. This technique is used in shipyards and in fabrication of storage tanks and large diameter pipes.  Two such indigenous machine have been developed in WRI and they are used in BHEL, Bhopal & Haridwar for fabrication of structure by welding in the vertical direction.


Related Discussions:- Electro gas welding

Determine the properties of foundation, Determine the Properties of founda...

Determine the Properties of foundation Soil profile together with natural type and properties of each strata will have a bearing on the choice of foundation. The fact that loa

Calculate values of the yield strength, Your company received an order to m...

Your company received an order to machine a batch of 150 steel parts that are 73.0 mm in diameter and 250 mm in length. One of the processes is a finish turning operation. Where th

Semi-active suspension systems, With an open loop system, the only way to m...

With an open loop system, the only way to modify the behaviour of the system is to modify the values of physical parameters in the system. For instance we can modify the damping co

Mockup of tube to tubesheet, what are the tests to carried out after mockup...

what are the tests to carried out after mockup preparation

Difference between mill and mill-drill, What is difference between mill and...

What is difference between mill and mill-drill? Ans) Today many manufactures are combining machines; a mill/drill is one of these. It is a mixture of a drill and a mill, a mill

Alloy steels, Alloy Steels: Carbon steels in their commercial forms al...

Alloy Steels: Carbon steels in their commercial forms all times comprise specific amounts of other elements. A lot of of these elements enter the steel from the ores and it is

Simply supported beam - shear force diagram, Simply supported beam - Shear ...

Simply supported beam - Shear Force diagram: A simply supported beam of length 8 m is subjected to a consistently varying load from zero at centre to 3 t/m at both of ends. Dr

Steps of engine oil replacement and top-up, Engine Oil Replacement and top ...

Engine Oil Replacement and top up steps • The engine oil should be changed only when motorcycle has run through the prescribed kilometers. • Change the engine oil every 4000 k

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