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Wire gauges are defined in such a way that the lower the gauge, the thicker the wire. So, 8 gauge wire is thicker than 10 gauge wire.
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What is butt joint in stainless steel?
there are 3 types of welded joint 1-butt weld butt weld is the type which need usually 4 mm clearance between the 2 edge of pipe or plate you want to weld it. 2-socket weld 3-seal weld
How does calcium carbonate influence weld quality?
Calcium carbonate is decomposed and the products CO/CO2 form a gas shielding for the weld.
Why is aluminium hard to weld when exposed to air?
Aluminum is not only hard to weld when exposed to atmospheric air, it is impossible. All aluminum arc welding processes must be shielded from the air. Gmaw (mig) and gtaw (tig) used sheilding gasses such as pure argon or argon mixed with co2 or helium depending on the application. Smaw (stick) process uses a flux to shield the weld. Aluminum is very reactive making it one of the hardest materials to weld. The cleaner the aluminum is the better it will weld. Aluminum must be free of anything that produces hydrocarbons when heated, such as paint, oil and lubricants. Aluminum must be clean and well shielded from the air to achieve a quality weld.
How easily is a hole in the transmission pan fixed and how can you do it?
have someone weld a patch panel on it, or if it is small enough use a product called JB Weld which can be picked up at any autoparts store.
What is the difference between shielded and unshielded welding?
Shielded welding needs a gas to shield the weld from the atmoshere air. Unshielded uses a flux the burns when welding to shield the weld from the atmoshere air.
Is number 8 gauge weld wire fencing stronger than number 10 gauge wire?
Due to the fact that a #8 wire is of a larger diameter than a #10 wire, I would say that logically it should be stronger to break.
Which one is stronger field weld or shop weld?
When done correctly it doesn't matter where a weld is made.
Whats the best socket or butt weld?
Socket weld, because it's stronger; butt weld, because it uses less metal. The "best" weld depends on what you're building.
Why do they use argon gas to tig weld?
Argon gas is an inert gas and it shields the weld from any contamination from the out side air. It shields the weld and makes it cleaner and stronger.
How do you weld MS pipe to GI pipe?
Grind the surface of GI pipe lightly to remove the skin which is about 0.1 to 0.2 mm, than weld the MS pipe as per the wall thickness and use accordingly the welding rod at the required gauge / Dia of the welding rod. this works fine.
How do you check the welding penetration and welding strength?
Basic test is to cut across the weld and polish the metal. Most times the weld can be seen as a different shade. Inclusions and incomplete fusion are visible You can cut strips across the weld joint and bend them to look for fracturing. Ultimate test is to x-ray the weld. Defects and incomplete fusion can be seen. Same process as an x-ray of your body. Also a section can be cut from the joint and subjected to a tensile test where the piece is literally pulled apart. A good weldor knows when he has produced a perfect weld just by observing the weld bead as it is deposited. Using the correct electrode produces a weld slightly stronger than the base metal.
Why it is eassy to weld hard material than ductile?
it is not easy to weld hard materials....it always difficult to hard materials.....
Why weld a rust spot why not glue it?
Because welds, if done correctly, can be stronger than the metal itself, and rust is caused by oxidation, a chemical reaction between oxygen and the metal, therefore the glue may not bond well. So, a weld would be the way to go due to its overall ability to hold the metal together for long periods of time with amazing strength.
Is plug weld's depth of filling to the right or left of the welding symbol?
When the depth of filling is less than the thickness (less than complete), it is specified inside the plug weld symbol!!!
What are homogenous heterogenous and autogenous welding processe s?
A heterogeneous weld corresponds to a weld that is realized with a different filler alloy than the base metal. At the opposite, a homogeneous weld is realized with same filler alloy than the base metal. Finally, an autogenous weld is done without filler alloy. The joining is realized by melting only the base metal. A.B.
What is porosity in welding applicaton?
Porosity is nothing more than bubbles in the weld. Surprisingly a weld can contain quite a bit of porosity without affecting the strength.
Why can acetylene torch be used to weld metals together?
Acetylene torches can be used to weld metals together because they have a higher temperature than the metal's melting point.
