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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.
How can you keep the arc from spattering as you weld?
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 .
WHAT DO the letters MTR's mean in welding terms?
MTR in welding?
Why is welding in the downward position an advantage when welding on sheet metal?
Verticle down welding will always have lower penetration and less heat applied to the weld joint. As sheet metal is thinner and can not take excessive heat, verticle down reduces burn-through.
When performing overhead welding what additional safety equipment should be worn in order to protect the legs and feet from falling molten metal?
When welding one should always wear certain clothing. Leather boots (steel toe desirable), work pants (such as jeans) that cover the top of the boots, heavy cotton long sleeve shirt, welding beanie, gloves, and safety glasses. In most instances these items will protect you from sparks and weld spatter whether you are welding on a flat, vertical or overhead surface. A leather jacket can be worn to protect your shoulders and arms. Molten metal should not be falling if you are welding correctly. If you are sitting, while welding, a leather apron should be used.
How do you stop spatter in mag welding?
Change to a different process. MIG welding ALWAYS, always, always creates spatter. How you stop excessive spatter is by adjusting the voltage and wire speed. Lower voltage and faster wire speed = more spatter. Higher voltage and lower wire speed = less spatter. How you find the magic combination for the weld you are making is to test in an inconspicuous place - run a bead, check for spatter, adjust the two settings, run another bead...eventually you will get to the point where you're getting a nice weld with an acceptable amount of spatter, and then you weld your project with it.
What are welding sparks called?
The 'welding sparks' that come off during welding are metal particles from the filler metal, electrode, or base metal that are lost during welding. The standard term is spatter.
What are welding defects?
1. crack 2. spatter 3.distortion 4. haz 5 blow holes
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.
What was the second case in the US to use blood spatter?
What do you mean exactly? do you mean assault like?
How can you keep the arc from spattering as you weld?
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 .
WHAT DO the letters MTR's mean in welding terms?
MTR in welding?
Why spatters come in welding?
Spatter can be caused by #1 Amperage setting too high, #2 too long an arc length, #3 thin coated electrodes, #4 Using AC current.
What is a spatter dash coat?
spatter dash is one of the dry mix mortar.
Why is welding in the downward position an advantage when welding on sheet metal?
Verticle down welding will always have lower penetration and less heat applied to the weld joint. As sheet metal is thinner and can not take excessive heat, verticle down reduces burn-through.
How is Venus blood spatter different from arterial blood spatter?
velosity . colour,pressur.
What is mean by cswip 3.1 welding inspector where is it?
it means welding inspector exam details
