Electro gas welding, Mechanical Engineering

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.

Posted Date: 9/13/2012 7:26:16 AM | Location : United States







Related Discussions:- Electro gas welding, Assignment Help, Ask Question on Electro gas welding, Get Answer, Expert's Help, Electro gas welding Discussions

Write discussion on Electro gas welding
Your posts are moderated
Related Questions
Battery Inspection :  A fully charged and properly maintained battery is essential for proper lighting and starting of the motorcycle. STEPS Remove the right side cov

Write the types and functions of column. a) Explain surveying. Brie?y describe about the chain and accessories

WHAT IS DAMP VIBRATION FACE ANGLE SIMPLE HARMONIC MOTION NATURAL CIRCULAR FREQUENCY FORCE VIBRATION

how to solve engineering mechanics statics problem?

Structural notches In t he case of solid solution strengthened alloys and age hardenabled steel, the variation in heat i/o during welding may cause localized grain coarsening o

Plot the root locus diagram for a system whose open loop transfer function is Evaluate the range of values for K for system to be stable.

If no leak found in the above listed area remove flywheel: Remove fly wheel and check weather oil leak is from the seal or "o" ring.


Determine the stress in the meridional direction: A doubly curved shell of thickness 8 mm is filled through a liquid under an internal pressure of 2.0 N/mm 2 . At a specific p

Concept and application of limiting friction: Sol.: The maximum value of frictional force that comes into play, when the body just begins to slide over the surface of the ot