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What is partial penetration joint?
A partial penetration joint is a type of weld joint where the weld does not fully penetrate through the thickness of the materials being joined. This results in the weld metal being only partially through the joint rather than completely through. It is often used when full penetration is not required for the application.
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
What does c p on a weld symbol mean?
The "c p" on a weld symbol indicates "continuous weld." This notation specifies that the weld should be applied continuously along the joint, as opposed to being intermittent or spot-welded. It ensures a consistent and uniform application of the weld material for structural integrity.
What is the difference between shielded and unshielded welding?
Shielded welding uses a shielding gas to protect the weld pool from contamination and oxidation, while unshielded welding does not use such gas and is typically done in a protected atmosphere like underwater or in a vacuum. Shielded welding produces cleaner and stronger welds due to the protection from atmospheric elements.
Can you use slip on flanges in caustic systems?
It is not recommended to use slip-on flanges in caustic systems due to the possibility of leakage. Caustic solutions can degrade the gasket material used in slip-on flanges, increasing the risk of leakage and potential system failure. Weld neck or socket weld flanges are more suitable for caustic systems as they provide a stronger and more secure connection.
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 measure weld throat thickness?
Weld throat thickness is measured from the root of the weld to the face of the weld, specifically the shortest distance in a cross-section of the weld. This measurement is crucial for ensuring the weld meets design specifications and can be done using calipers or a weld gauge. For fillet welds, the throat thickness can also be calculated using the formula: throat thickness = 0.707 times the leg length of the weld. Accurate measurement is essential for assessing the strength and quality of the weld.
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.....
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!!!
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.
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.
