0
can use argon with almost any material
steel is sometimes CO2 or CO2 90% Ar 10%
Carbon doesnt ruin steel can actually strengthen it
Al and CO2 is a disaster
Al will burn in CO2
Ar is more expensive
Helium takes less heat from the weld and makes a better weld but is a LOT more expensive
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Can carbon monoxide be used in welding instead of Argon?
Carbon Dioxide iswidely used for MIG welding but I never heard of carbon monoxide and it is definitely not used in the industry as shielding gas. The purpose of the shielding gas is not just shielding the weld pool but offer arc stability with an adequate ionization potential. The heat and electrical conducctivity of the gas at the arc temperature are a huge factor as well.
How is oxygen used for gas welding?
Oxygen is used as active gas during MIG welding, spray transfer. It increases penetration and travel speeds. It is used only is small amounts though ususally 1%-5%. +++ The question mentioned "gas" welding, not any form of electric-arc process, and in oxy-acetylene and oxy-hydrogen welding the oxygen is necessary to raise the fuel-burning temperature to above the melting-point of steel.
Does water explode in a plasma arc?
Yes, water will explode in a plasma arc. Just spray water into a welding arc and you'll see it happen first hand (not recommended). Water arc explosions are used in metal forming and mining.
Why is acetylene rather than butane gas used for welding?
You can weld with acetylene, which burns very well; argon is inert and doesn't burn at all, so it is useless for welding.
What is the important uses for thallium?
Thallium is used to toughen welding arc points. Edit: Although I know from a strong manufacturing background in aerospace, including special processes such as welding tough to weld metals, that thallium was used in welding electrodes I find no reference to this during a post search. I withdraw the answer. Edit 2: Sometimes I can not help myself. Further research points out that it is thorium that is used in welding electrodes, not thallium.
What are the types of welding?
Gas, arc, mig and tig.
What is gmac in welding?
Gas Metal Arc Welding Most folks call it MIG
What does mig stand for in mig welding?
MIG stands for metal inert gas. It is a non-standard term for gas metal arc welding (GMAW) and flux cored arc welding (FCAW) according to the American Welding Society (AWS). It is simply Metal Inert Gas.
The shade of the filter plate used in a welding shield depends on what?
The Type of welding you are doing, the brightness of the arc.
What is MIG welding?
It is arc welding process using a spool of wire that is fed to the material by an electric motor. Different from shielded metal arc welding which uses consumable welding electrodes with a covering of flux to assist and protect the weld. The MIG uses an inert gas (IG) to keep impurities from the welding point. The technical term for MIG is GMAW (gas metal arc welding), this is because most of the time an inert gas is not used, a mixed gas is more likely. Ex. 90-10 Ar-CO2
Is arc welding stronger than mig welding?
Using the correct procedures and filler material they can both have the same strength. P.S. both are considered "arc welding"
In which process is the electrode used in welding?
Manual Metal Arc Welding(MMAW) Also GTAW (TIG) and GMAW (MIG) The MIG wire carries electric current so it is considered the electrode. TIG the Tungsten is considered an electrode.
What is MMA welding?
MMA stands for manual Metal Arc welding. In short "arc welding" and can be used in either AC or DC mode. Usually incorperated with Mig, Tig and plasma cutters for arc welding machines as an optional extra. submitted by Ken.Benson - Clarke. sales@edacomputers.co.uk from saffon walden, essex, uk.
In MIG welding what are the polarities of the torch and the work-piece and what is the fundamental reason for this?
MIG welding works only with reversed polarity, DC+, + at the torch. The reason is mostly the stability of the arc. Using DC- will result in a very unstable arc with lots of spatter.
Name the welding processes covered in this chapter which may use a shielding gas to shield the weld area?
Gas Tungsten Arc Welding Gas Metal Arc Welding Flux Cored Arc Welding
How much thickness of plates weld by using gas metal arc welding?
See preceding question re: Mig welding.
What are the three types of machines used in manual metal arc welding?
I am not sure your question is clear enough but here I go... Stick Arc Welding (AC or DC), MIG (Metal Inert Gas) and TIG (Tunsten Inter Gas). All three of these are the basic metal welding machines.
