Tariqul

MEM05047B outlines the skills for flux core arc welding (FCAW). It focuses on preparing materials, setting up welding equipment, and applying various welding techniques. The unit also covers safety protocols and quality inspections to ensure welds meet industry standards for both heavy and light fabrications. Additionally, the guide walks learners through essential safety protocols. Understanding … Read more

Manual plasma arc welding (PAW) is a precise welding method that melts metal using a focused plasma arc. It uses a tungsten electrode to create a high-temperature plasma jet. The system includes a plasma torch, a control console, a DC power supply, and shielding gas supplies. This process ensures high-quality welds with accurate control. The … Read more

The welding electrode is mainly a metal rod made of steel or wrought iron. It has a coating of flux material, which includes cellulose, silica, and metal oxides like iron (Fe), manganese (Mn), aluminum (Al), titanium (Ti), and calcium (Ca). During electric arc welding, the electrode melts and forms oxide residues. The choice of electrode … Read more

Manual submerged arc welding (SAW) is a welding method that uses heat from an electric arc between a bare metal electrode and the workpiece. This process ensures deep penetration and high weld quality. It needs careful joint preparation and is effective for thick materials in large-scale applications. Its advantages include efficiency and strength. The operator … Read more

Gas Metal Arc Welding (GMAW), or MIG welding, uses a continuous wire electrode from a welding gun. It requires shielding gas and a consistent power source. While it is less portable, GMAW is widely used in manufacturing, construction, automotive, plumbing, maritime repairs, and fabrication due to its high weld quality. The primary benefit lies in … Read more

MIG and arc welding produce strong welds. MIG uses E70S-6 wire. Arc welding uses a 7018 electrode. Both can achieve a tensile strength of 70,000 psi, which is strong enough for most steel types. The quality of the welds also relies on proper surface preparation in each method. In contrast, Arc welding utilizes a consumable … Read more

Gas metal arc welding (GMAW) is a metal joining process. It uses a continuously fed consumable wire electrode to create an electrical arc. This arc forms between the electrode and the workpiece. GMAW is essential for efficient manufacturing and delivers strong welds for a variety of applications. When starting with Metal Gas Arc Welding, safety … Read more

Shielded Metal Arc Welding (SMAW), or stick welding, is a manual welding process. It uses a consumable electrode coated in flux. The flux shields the weld from contamination. SMAW is widely used in metalworking and fabrication due to its versatility and effectiveness. For beginners, mastering the techniques of Metal Arc Welding with Covered Electrode involves … Read more

The best aluminum alloys for arc welding are 3003, 5052, 5083, 5454, 6061, and 6063. These alloys have excellent weldability, moderate-to-high strength, and high weld efficiency. They create strong joints, making them suitable for a wide range of welding applications. When selecting metal alloys for arc welding, consider the required properties of the finished product. … Read more

Plasma Arc Welding (PAW) is a modern welding process that uses a plasma gas to generate high temperatures for precise welding. It shares similarities with Gas Tungsten Arc Welding (TIG). PAW is efficient for thin materials. For clear visual explanations, check out animation videos that illustrate its principles and applications. The plasma gas, typically an … Read more