Welding guru ji

Oxyacetylene welding uses the concept of generating heat from the combustion of oxygen and fuel gas. Gas supply stored in high-pressure cylinders flows through the flexible hoses (an oxygen hose and a fuel gas hose) by adjusting the gas regulators. The gases are combined in the mixing chamber of the hand-held oxy-fuel torch and exit through the orifice in the tip. Welding tip orifice size is an important factor and thus, it should be chosen in accordance with the application. As heat is applied to the base metal, it reaches a melting point (around 3200°C), wherein fusion welding occurs. Other welding techniques that use electricity can reach higher temperatures (above 5000°C), making oxyacetylene welding most suitable for thin metals. Using filler rods is optional and depends on the scope of the project. Since gas welding operates with combustible materials, it is vital to practice proper safety measures. Types of Flames The type of welding flame plays an important role in determining ...

TIG Filler Rods Explained A TIG filler rod is a special metal alloy that withstands high heat and does not lose its characteristics after melting and solidifying. The primary role of TIG rods is to add the additional metal to the weld joint and help fuse the two pieces, creating high-quality welds with a desirable strength. A TIG welding rod is similar to a MIG wire, and they share the composition. However, there are various types of TIG filler metals, and they differ on the: Composition (Type) Diameter Length Choosing the suitable TIG filler metal will depend on the type and thickness of the metal you are welding. As a rule of thumb, you want the rod to have the same composition as the base metal and one size smaller than the metal thickness, but let's explore this further. TIG Filler Rod Types For Various Metals To help welders make an informed choice when choosing the right tig filler metal, AWS (American Welding Society) created a classification. The system for identifying the ...