Articles & Podcast Episodes

Arc welding provides various career opportunities in fields like engineering and inspection. Practical experience is key for mastering welding techniques. Safety is vital. Beginners can start with easy projects, such as welding yard art. Engaging activities improve learning. Share personal experiences to inspire others in their welding journey. Beginners should focus on fundamental skills, such … Read more

Arc welding is a method that uses a welding power supply to create an electric arc between an electrode and the base material. This process generates heat to melt the materials together. In gas metal arc welding (GMAW), the technique employs a continuous wire and an inert gas to shield the weld. Safety measures are … Read more

Arc welding is a welding process that uses an electric arc to produce heat. This heat melts metals for joining. A power supply forms the electric arc between a consumable electrode or a non-consumable electrode and the base material. Arc welding operates on either direct current (DC) or alternating current (AC). The benefits of arc … Read more

Filler material in electric arc welding consists of metals like silver, tin, nickel, copper, aluminum, and gold. These metals improve the strength of the weld joint. Filler materials come in paste and solid forms, including slugs, powder, washers, wire, and rings. Lead-free and cadmium-free options are also available. The primary function of filler material is … Read more

Gas metal arc welding (GMAW) involves transferring molten metal from a wire electrode to a workpiece. This transfer process shapes weld characteristics. GMAW uses three modes: short-circuiting transfer, globular transfer, and spray transfer. Each mode impacts the weld quality in distinct ways. Each transfer mode offers unique advantages and challenges. Selecting the right mode improves … Read more

Arc welding features electrical current that creates an arc between an electrode and a base material. The electrode carries a positive charge, while the base material is negatively charged. This arc generates an output current of 5 to 1,000 amperes and an output voltage of 8 to 40 volts, melting the materials together to form … Read more

Filler metals and allied materials are key consumables in metal arc welding. CSA W48 provides specifications for choosing the right electrodes and rods. This standard helps classify and evaluate filler materials. Proper selection leads to strong, durable joints in welding methods like gas-shielded metal arc welding (GMAW) and gas tungsten arc welding (GTAW). Filler metals … Read more

Filler rods for arc welding use materials like steel, stainless steel, aluminum, and copper. Common electrodes, such as E6010, assist in processes like SMAW and GMAW. These rods supply crucial filler for joining metals and often contain a flux coating for better performance. The choice of filler rod material directly affects weld characteristics, such as … Read more

Flux consumption in submerged arc welding usually equals wire consumption. The weight ratio of wire to flux changes depending on the flux type and welding parameters. The arc control unit regulates these parameters. This relationship is essential for achieving effective welding results. There are different types of fluxes used in Submerged Arc Welding. These include … Read more

Basic fluxes in submerged arc welding act like coatings in manual metal arc welding. They have low silica content and include calcium carbonate, fluoride, alumina, calcium oxide, manganese oxide, magnesium oxide, and rutile. These components improve welding performance and mechanical properties for better welds. The effects of flux composition on welding include changes in penetration … Read more