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

Estimate the air flow velocity , A smooth glass plate is coated with a spec...

A smooth glass plate is coated with a special electrically conductive film that may be used to produce a constant heat flux on the plate. Estimate the air flow velocity which must

Explain about the eccentrically loaded footings, Explain about the eccentri...

Explain about the eccentrically loaded footings. ECCENTRICALLY LOADED FOOTINGS When footings have overturning moments and axial loads, the base pressure under the footing wi

What is two way punching shear, What is Two Way Punching Shear? Two Way...

What is Two Way Punching Shear? Two Way Punching Shear In columns, generally the tendency of the column is to punch through the footing.  This also is to be considered in de

Determine the thermal efficiency of cupola, With the help of neat diagrams ...

With the help of neat diagrams explain various parts of Cupola. Define its operation. How the thermal efficiency of Cupola calculated? What do you mean by Die casting process? G

Advantages and limitations of adhesive bonding, Advantages and Limitations ...

Advantages and Limitations of Adhesive Bonding The description so far might be concluded through listing main advantages of adhesive joints. (a) The adhesive joints assist

Define the analytical solid modeling, Analytical Solid Modeling (ASM) A...

Analytical Solid Modeling (ASM) ASM is closely related to finite element modeling. It is developed to aid designers in the arduous task of modeling complex geometry commonly fo

Stress plots, Problem:   The following machine component is loaded as s...

Problem:   The following machine component is loaded as shown.  It is fabricated from Al 6061-T6.   Determine the analytical solution to this problem and compare result

Flange facing and surface finish, Q. Flange Facing and Surface Finish? ...

Q. Flange Facing and Surface Finish? Raised face flange facings are preferred. Flat face flanges to be used only when mating with like equipment (fabricated from brittle mat

Compute the concentration of li, Aluminum-lithium alloys have been develope...

Aluminum-lithium alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. A commercial aircraft skin material having a

Determine change in length of the bar, Determine change in length of the ba...

Determine change in length of the bar: A steel bar is subjected to loads as shown the given figure. Determine change in length of the bar ABCD of 18 cm diameter. E = 180

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