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for mig welding spatter can be reduced by amp, voltage and wire speed adjustment. check shielding gas. stick welding check the recommended voltage, amps and application for the rod you are using keep your arc short. tig welding, be sure you are using the proper tungsten, and shielding gas and filler rod for the metal you are welding, don't dip the tungsten. make sure the metal you are welding is clean .
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What is submerged arc welding?
Sub arc welding is a process in which the welding actually occurs while submerged under a layer of flux. Not only does this prevent oxygen from entering the weld and thus porosity, but it also keeps the dangerous arc from sputtering and spattering from the weld.
Can plasma arc welding weld non magnetic materials?
Plasma arc welding can weld almost any commonly used metal. It is not limited to magnetic metals, they only need to conduct electricity.
What is the saw welding?
saw stands for suberged arc welding, where the weld is submerged underneath the flux
Three condition of electrode that could affect weld bead shape in sheilded metal arc welding?
The angle of the electrode, the speed of the electrode used to weld and the size of the electrode.
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
What is submerged arc welding?
Sub arc welding is a process in which the welding actually occurs while submerged under a layer of flux. Not only does this prevent oxygen from entering the weld and thus porosity, but it also keeps the dangerous arc from sputtering and spattering from the weld.
Why is it important to strike the arc only on the weld joint?
why is it important only to strike the arc in the weld joint
How does arc length affect a weld?
Too long an arc length allows the arc to wander creating a poorly shaped weld. The slag is usually too thin and can allow Oxygen in the air to attack the molten puddle which causes Porosity in the weld. Too short an arc length buries the slag and creates less heat which traps the slag and impurities. Keep in mind that electrode coatings help determine the correct arc length.
Can weld without flux is possible?
You can arc weld & then the flux will be in the rod.
How is the liquid weld metal proctected when welding?
Partially by the smoke that is produced. This helps to keep the surrounding air away from the puddle. Mostly by the slag that covers the weld almost immediately as the arc moves on.
Is flux cored arc a high precision weld?
yes
Why is it necessary to provide a shield of gases to protect the weld during the arc welding process?
Providing a shield of gases during arc welding is essential to protect the weld from atmospheric contamination such as oxygen and nitrogen. These gases can react with the molten metal, leading to defects in the weld like porosity, cracking, and reduced strength. Shielding gases help to create a stable arc, protect the molten weld pool, and improve the overall quality and integrity of the weld.
Why is it important to strike the arc only in weld joint?
con cac
How can arc blow be controlled?
It can be controlled by connecting the work lead to tha end of tha weld joint and than welding away from the work leadThe ARC blow can be controlled by connecting the work lead to the end of the weld join. Then you will have to weld away from the work lead.
Can plasma arc welding weld non magnetic materials?
Plasma arc welding can weld almost any commonly used metal. It is not limited to magnetic metals, they only need to conduct electricity.
Can you arc weld from 12V batteries?
Barely, 24v or36v in series is better
Can you weld in outer space?
Yes, you could. When we weld, we use several different techniques. They will work out there in space. For instance, if you have an electric welder, it will still pour out a bunch of electric current when an arc is struck. The arc and the following current will create the molten metal "pool" at the site of the electrode and the work just like on earth, and you can create a bead. But you won't have to worry about the effects of air on your weld. No flux will be required to prepare or keep your material clean. Certainly if we wanted to trouble ourselves to haul up welding gas to weld, we could do that, too.
