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

Laser surface treatment applications, LASER SURFACE TREATMENT APPLICATIONS ...

LASER SURFACE TREATMENT APPLICATIONS   The laser can be used to alter the surface structure of materials either with or without alloying additions as compared to alloying by

Gmaw power source, GMAW POWER SOURCE A power source wit h a flat charac...

GMAW POWER SOURCE A power source wit h a flat characteristics is almost universally used for GMAW process as it provides self adjustment and stabilisation of the arc. Also it m

Evaluation of specific volume of steam - thermodynamics , Evaluation of Spe...

Evaluation of Specific Volume of Steam: Specific volume of steam means the volume which is occupied by unit mass of steam. It is expressed in m3 /kg. Specific volume of steam

Group technology, comparing the different coding systems ?

comparing the different coding systems ?

Find the coefficient of friction between ladder and floor, Find the coeffic...

Find the coefficient of friction between ladder and floor: A ladder of 5m long rests on horizontal ground and leans against smooth vertical wall at an angle of 70° with the h

Define the advantages of abrasive jet cutting machines, Advantages of Abras...

Advantages of Abrasive Jet Cutting Machines 1. Ability to cut brittle or heat sensitive material without damage. 2. Capability to cut intricate holes in material of any hard

Expression for moment of inertia, Drive a mathematical expression for momen...

Drive a mathematical expression for moment of Inertia of a rectangular section. A body consists of a solid hemisphere of radius 4 cm and a right circular cone of height 12 cm. t

Evaluate the quantity of air passes, The cockpit of a jet plane flying at a...

The cockpit of a jet plane flying at a speed of 1200 km/hr is to be cooled by simple air cooling system. The cockpit is to be maintained at 25 0 C and pressure in the cockpit is 1

Mollier diagram - thermodynamics, Mollier diagram: Mollier diagram is ...

Mollier diagram: Mollier diagram is chart drawn between enthalpy H (on ordinate) and entropy or S (on abscissa). It is also called as H-diagram. It depicts properties of water

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