IN SAW WHY SLAG OCCURS?
The main difference between Flux-Cored Arc Welding (FCAW) and Gas Metal Arc Welding (GMAW) is the type of consumable electrode used. FCAW uses a tubular electrode filled with flux to protect the weld pool, while GMAW uses a solid wire electrode with an external shielding gas. FCAW is often preferred for outdoor welding due to its self-shielding capabilities, while GMAW generally produces cleaner welds.
FCAW (Flux-Cored Arc Welding) wire contains a flux that generates shielding gas and slag during the welding process, which can be used in both indoor and outdoor environments. In contrast, GMAW (Gas Metal Arc Welding) wire is solid and relies on an external shielding gas to protect the weld from contamination, making it best suited for clean environments. Additionally, FCAW can be used on thicker materials and is often preferred for heavy-duty applications, while GMAW provides a cleaner weld and is typically used for thinner materials.
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.
The amount of weldable meters from a 15kg spool of FCAW 71T wire depends on several factors, including the wire diameter and the type of joint being welded. Generally, a rough estimate is that 1 kg of wire can weld approximately 1 to 1.5 meters, depending on the application. Therefore, a 15kg spool could yield around 15 to 22.5 meters of weld. For precise calculations, it's best to refer to specific welding parameters and joint designs.
To gas weld, you'll need a gas welding torch that mixes fuel gas with oxygen to create a flame. The workpiece is heated with the flame until it reaches the melting point, and a filler rod is added to create a bond between the two pieces. Practice and proper safety equipment are essential for successful gas welding.
There are, yes, and tubular electrodes are very common (Flux-Cored Arc Welding (FCAW)). The electrode in this process is a tubular wire which is filled with fluxing and alloying element. Such electrodes have increased penetration depth, deposition, and quality enhancement of the weld and robustness over solid wires. Tubular electrodes are particularly prone to heavy fabrication, structural welding tasks and also effective in outdoor set ups where lack of shielding gas may occur. Beelines Automotive We not only deal in automotive engines/transmission but we can also sub-branched in providing valuable technical expertise in engagement in welding/repair solutions. Are you searching used engines, transmission or OEM auto parts? You can find your trusted vendor at our platform at a fair cost.
circumfrencial weld is sometimes referred to as Girth weld. its just another term.
Yes you will not get a "good" weld and it will not be strong The filler electrode used by TIG welder is usually bare and need a shield gas to shield off the atmosphere. Without shield gas, air gets into the molten weld usually produce defects called porosity (air pocket). Your finished weld is defective may not meet the strength. Without a shielding gas you will need more power to establish an arc and the weld puddle will be extremely contaminated (oxidized). The electrode (tungsten) will also be contaminated. You will find the arc wandering all over the place. Use a stick welder instead!
1837.
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.
I have fixed a couple over time and what I do is fill it with water and detergent empty it out Then do it again, then Weld it.