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

Electrodes- hardfacing electrodes, Hardfacing Electrodes There are many...

Hardfacing Electrodes There are many types of hard facing electrodes. These electrodes are mainly useful in the maintenance and repair of machinery parts and equipments subject

Stroke -engine terminology , Stroke: The nominal distance through which a...

Stroke: The nominal distance through which a working piston moves between two successive reversals of its direction of motion is called the stroke and is designated by the letter

Wire feed system, Wire Feed System The submerged arc welding machine of t...

Wire Feed System The submerged arc welding machine of the wire feed control may be of the following types: 1. Voltage sensitive system 2. Constant wire feed The voltage sensiti

Metals, what effects do external factors have on engineering metals

what effects do external factors have on engineering metals

CENTRE OF GRAVITY OF WIRE, WHATIS CG OF A WIRE BENT IN THE FORM OF A QUARTE...

WHATIS CG OF A WIRE BENT IN THE FORM OF A QUARTER ELLIPSE

Draw a diagram of a simple carburettor, a) Draw a diagram of a simple carbu...

a) Draw a diagram of a simple carburettor and briefly explain its function. b) What are the basic characteristics of fuels for CI engines.

Setting and installations of insulation, Q. Setting and installations of in...

Q. Setting and installations of insulation? The setting and installations of insulation shall be to Specification No. later. The steam drum surfaces shall be insulated with

The linear dimension command, The Linear Dimension Command            ...

The Linear Dimension Command                                    You can use this command to generate horizontal and vertical dimensions.Creating a linear dimension is eas

Steady flow energy equation, (a) Derive the mathematical expression for Ste...

(a) Derive the mathematical expression for Steady Flow Energy Equation. State the assumption made before the derivation. (b) The internal energy of a certain substance is provid

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