Tariqul

Arc blow in DC arc welding is the deflection of the arc stream away from the direct path between the electrode and the workpiece. This deflection can happen in various directions, leading to inconsistent heat and welding issues. Recognizing arc blow helps to enhance welding techniques and ensure better results. The effects of arc blow … Read more

Drawn arc stud welding is a process where the operator uses a gun to place the stud on the base metal. An electric solenoid raises the stud to a preset height. The process creates a drawn arc that melts the stud base and the base metal, forming a molten pool. This molten pool helps establish … Read more

The arc in welding means the electrical current that produces heat to join two metals. It appears between the base material and the electrode, forming a high-temperature plasma. This melted metal enables strong connections. The arc is essential in various welding processes to ensure effective metal joining. The welding arc operates through three key components: … Read more

Arc stability in welding means keeping a constant arc length and a steady contact tip-to-workpiece distance (CTWD). This stability reduces variations during welding. It results in better weld quality and consistent weld penetration. Stable arcs also ensure effective heat transfer, which is crucial for successful welding. Several performance factors contribute to arc stability in welding. … Read more

Shielded metal arc welding (SMAW) is a welding process that joins metals using heat generated by an electric arc. This arc forms between the tip of a consumable electrode and the surface of the base material. SMAW ensures strong coalescence of metals, making it a popular choice for various welding applications. A key advantage of … Read more

Arc initiation in welding means starting the electric arc needed for the process. Hold the electrode at a 10 to 15-degree angle to the surface. Touch the electrode to the surface, then quickly pull it away. This quick movement creates the electric arc, crucial for effectively joining metal pieces. Beginners should focus on maintaining a … Read more

The 6G arc welding test measures a welder’s skills in a simulated environment. It requires welding a 2-inch Schedule 80 pipe in multiple positions. Welders typically use E6010 for the root pass and E7018 for fill and cap. Passing this test shows proficiency in AWS B2.1 standards and meets welding certification requirements. The 7018 electrode, … Read more

Electric arc welding has advantages like efficient welding of various metals and thicknesses. It is portable, making it ideal for outdoor work and many applications. However, it also has disadvantages, such as slower welding speeds and higher electrode consumption, which can affect production rates. However, Electric Arc Welding has disadvantages. One key drawback is the … Read more

Arc welding has various applications. It is used to weld sheet metals and thin ferrous and non-ferrous metals. It also helps in designing pressure vessels and piping. Moreover, arc welding is important in the automotive industry, home furnishings, and the shipbuilding industry. The advantages of arc welding applications include high-speed processes, strong joint integrity, and … Read more

Submerged arc welding (SAW) provides many advantages. It creates strong welds with deep penetration. SAW produces minimal fumes and arc light. It is suitable for indoor and outdoor use. The process results in reduced distortion, requires little edge preparation, and achieves high deposition rates. Second, SAW is highly efficient. It allows for deep weld penetration … Read more