0
A small "pool" of molten metal that is manipulated to crate a weld bead.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the difference between butt weld and socket weld?
A butt weld is a weld made between two straight cut profiles , a socket , or plug weld is made between a surface and a hole.
Which one is stronger field weld or shop weld?
When done correctly it doesn't matter where a weld is made.
How do you calculate weld deposit metal weight?
At first, the area of cross section of the weld, length of the weld, volume of the weld in cubic inches, weight of weld in cubic inches. To express in formula: Weight of Weld Metal = _ Êx ÊBase Êx ÊHeight Êx ÊLength Êx ÊWeight of Material.
Is it ok to weld gi pipe?
Gi weld not recommended . Because of gi coationg will be spoiled out . Puncture will be occur on the pipe weld .
What does it mean by the crown of the weld?
The crown of the weld is the material of the filler metal that projects above the surface of the parts being joined by the weld.
What fluxing agents act as scavengers in the molten weld pool?
Fluxing agents such as manganese and silicon act as scavengers in the molten weld pool, removing impurities like sulfur and oxygen to improve the quality of the weld. These elements help prevent porosity, cracking, and other defects that can weaken the weld.
Why the slag come in welding?
Slag in welding is formed when the flux coating on the welding electrode melts and lays over the weld pool. It helps protect the weld from atmospheric contamination, acts as a coolant, and facilitates the removal of impurities from the weld. After the weld cools, the slag can be easily removed.
What is the function of slag for welding?
Slag in welding acts as a protective layer on the molten weld pool. It helps to prevent contamination from the atmosphere, improve the weld's appearance, and facilitate the solidification process of the weld metal.
What is the affect of argon in welding?
Argon is commonly used in welding as a shielding gas to protect the weld pool from atmospheric contamination. It helps prevent oxidation of the weld and promotes a clean, strong weld bead. Additionally, argon can improve overall weld quality by providing better arc stability and penetration.
Do you know weld angle?
in weldi ng the angle is pretty important, too much of an angle will lead to lost filler. a smaller angle (where you are pushing the electrode) causes a wider weld bc. of it relation to the pool. pulling it (larger angle) creates a thinner, taller weld. you would need to practice to see
What are the functions of a slag in welding?
Slag in welding acts as a protective layer on the weld pool, shielding it from atmospheric contamination. It also helps to facilitate the removal of impurities and solidification of the weld by providing a controlled cooling rate. Additionally, slag improves the appearance and quality of the final weld by reducing defects such as porosity and cracking.
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.
What is the purpose of shielding gas in gtaw?
The purpose of shielding gas in GTAW (Gas Tungsten Arc Welding) is to protect the weld pool from contaminants in the atmosphere, such as oxygen and nitrogen, that can negatively impact the quality of the weld. The gas creates a protective barrier around the molten metal, preventing oxidation and ensuring a clean, strong weld.
What is high wind velocity can cause porosity in weld?
High wind velocity can cause porosity in a weld by disrupting the shielding gas flow around the weld pool. This can lead to oxidation of the molten metal, resulting in the formation of gas pockets or voids in the weld, which is known as porosity. It is important to ensure proper shielding gas coverage and protection when welding in windy conditions to prevent porosity.
What is dual shield welding?
Welding process that uses both flux core, within the wire, and gas to protect the molten weld pool from contamination.
What are the actions and purposes of the electrode flux coating in welding?
The electrode flux coating in welding serves multiple purposes: it provides protection against contaminants, helps produce a stable arc, controls the weld pool shape, and forms a slag to protect the weld as it solidifies. The flux coating also contributes to the overall quality of the weld, improving its mechanical properties and appearance.
How does high wind velocity can cause porosities in weld?
High wind velocity can cause rapid cooling of the weld pool, leading to the formation of porosities due to entrapment of gases as the molten metal solidifies. The turbulent air flow can also disrupt the shielding gas protection around the weld, allowing atmospheric gases to come in contact with the molten metal, resulting in porosity formation.
