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.
Yes, tubular electrodes are used in Flux-Cored Arc Welding (FCAW). These electrodes contain a flux core that provides shielding and enhances the weld quality by producing a protective gas and slag during the welding process. This allows FCAW to be performed in various positions and on different materials, making it a versatile welding technique.
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.
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.
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.
yes