Shielding gases, Mechanical Engineering

Assignment Help:

SHIELDING GASES


Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination. 


Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications. 


Related Discussions:- Shielding gases

Torque carried by the hollow shaft, Torque carried by the hollow shaft: ...

Torque carried by the hollow shaft: A hollow and a solid shaft of similar material have the same weight when the inner diameter of the hollow shaft is half its outer diameter.

Corrosion in boiler, Q. Corrosion in Boiler? With proper BFW treatment,...

Q. Corrosion in Boiler? With proper BFW treatment, and maintaining pH within a certain range (9.2 to 9.4) and removing oxygen from the system, a stable passive film will be for

Cone of friction, Con e of Friction: When the body is having impending...

Con e of Friction: When the body is having impending motion   in direction of P , the frictional force will be limiting friction and the resultant reaction R wil

Define advantage and disadvantage of electron beam machining, Define Advant...

Define Advantage and Disadvantage of Electron Beam Machining Advantage  1. Suitable for automatic machining. 2. Absence of mechanical contact between work piece and too

Project, project on solid work 2012 The Final Project is to design a mechan...

project on solid work 2012 The Final Project is to design a mechanical assembly in Solidworks. The design must consist of a minimum of 60 parts, 30 of which must be unique. A uniqu

Erosion-corrosion in steam service, Q.What is Erosion-Corrosion in Steam Se...

Q.What is Erosion-Corrosion in Steam Service? Depending on the steam quality, Let-down valves are subject to erosion-corrosion when pressure drop exceeds 1000kPa. Hard facing i

Calculate the weight of body and the coefficient of friction, Calculate the...

Calculate the weight of body and the coefficient of friction: Q: Bodies resting on rough horizontal plane required pull of 24N inclined at 30º to the plane just to move it. I

General reasons for defects, GENERAL REASONS FOR DEFECTS The imp...

GENERAL REASONS FOR DEFECTS The importance of weld quality is increasingly felt as we go ahead with the fabrication of sophisticated products using higher strength mater

Equation for principal stresses and principal planes, Equation for principa...

Equation for principal stresses and principal planes: Derive equation for principal stresses and principal planes for the element subjected to compound stresses. Sol.:

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