Articles & Podcast Episodes

An arc column in welding is the pathway of electric current between two electrodes in ionized gas. The negatively charged cathode and positively charged anode create intense heat. This heat speeds up the movement of negative ions and positive ions within the plasma column, making the welding process effective. Physics governs the arc column, as … Read more

Arc control in TIG welding adjusts the volt/amp curve. This setting affects the response to changes in arc length. Proper adjustments improve arc stability, especially for materials like stainless steel and aluminum. Control methods include knobs and foot pedals to adjust amperage, ensuring effective welds through precise machine settings. Gas flow rate protects the weld … Read more

Arc eye, also known as photokeratitis, is a corneal injury caused by exposure to ultraviolet (UV) rays from welding. It creates symptoms similar to sunburn, including pain and sensitivity in the eyes. To prevent arc eye, always wear protective eyewear. Treatment involves cold compresses and artificial tears for relief. Symptoms of arc eye include redness, … Read more

The arc length in arc welding should equal the diameter of the welding rod (L = D) for optimal weld bead quality. This equal length ensures proper heat distribution and penetration. Keeping the right arc length improves weld consistency and reduces defects, resulting in stronger joints. Adjust welding parameters like voltage and current to maintain … Read more

The arc length in arc welding should be nearly equal to the core wire diameter of the electrode. This normal arc length ensures optimal welding performance. Properly maintaining this distance improves heat control and enhances weld consistency during the welding process. Maintaining an optimal arc length promotes efficient melting of the electrode and workpiece. This … Read more

In stick welding, the ideal arc length is between 1/8 and 1/4 inch. A shorter arc length is best for thin metal, as it offers better control and penetration. For thicker metal, a longer arc length improves the welding quality and minimizes burn-through risks. Adjust the arc length according to the thickness of the metal. … Read more

Arc welding is a welding process that joins metal to metal. It uses electricity to create an electrical arc. The arc produces a plasma column that generates intense heat, melting the metal for a secure connection. This technique is vital for many applications in construction, manufacturing, and repair industries. The principles of arc welding rely … Read more

The welding symbol for stud welding features a crossed circle. This symbol is placed directly below the reference line. In stud welding, the welds happen on the arrow side of the joint. This clear indication helps prevent confusion during the fabrication process, ensuring precise execution of the weld. Stud welding involves attaching a metal stud … Read more

Arc welding produces electrical signals that can disrupt the function of implantable cardioverter-defibrillators (ICDs), such as S-ICDs and CRT devices. This electrical interference may be misinterpreted by the device as heart activity or electrical noise, which can compromise its performance and jeopardize patient safety. Safety tips include maintaining a safe distance from welding equipment. Users … Read more

Arc welding methods, including flux-cored and TIG welding, release harmful fumes that harm the environment. In contrast, laser welding and electron beam welding offer more sustainable options. They emit fewer pollutants and enhance air quality, making them safer for both people and the planet. The process releases fumes and harmful gases, which can affect air … Read more