Articles & Podcast Episodes

Plasma arc welding (PAW) is a precise welding process that uses a plasma torch to join metals. It creates a high-temperature electric arc between an electrode and the workpiece. PAW provides advantages in accuracy and speed. It is suitable for various applications across many industries, making it a valuable welding method. Plasma Arc Welding has … Read more

Submerged arc welding (SAW) is a welding process that forms an electric arc between a continuously fed electrode and the workpiece. It uses powdered flux to create a protective gas shield and forms slag, which safeguards the weld pool. SAW is effective for welding thick materials and produces high-quality results. The benefits of Submerged Arc … Read more

Air Liquide specializes in arc welding processes like Gas Tungsten Arc Welding (GTAW) and Gas Metal Arc Welding (GMAW). Jean-Pierre Planckaert oversees project management. The company emphasizes cleaner production. They provide advanced welding gases, equipment, and support through a network of international experts. Gas solutions play a critical role in enhancing the efficacy of these … Read more

In arc welding, the coated electrode melts first due to its thinner structure. The welding process uses an electric arc to create heat. This heat raises the electrode’s temperature to its melting point faster than other parts. This allows for effective metal fusion and helps maintain a stable arc during the process. Conversely, the base … Read more

Robotic arc welding boosts productivity and weld quality in industry. It automates processes for better accuracy and safety. Robots can handle payloads from 7 to 25 kg and have a reach of 911 to 3123 mm. These welding robots enhance efficiency, reduce cycle times, and improve manufacturing flexibility with integrated software and expert support. Welding … Read more

AC current effectively reduces arc blow in electric welding. Frequent current reversal generates eddy currents in the base metal. These eddy currents create magnetic fields that counteract the forces causing arc blow. This process stabilizes the arc and enhances the effectiveness of various welding techniques during the welding process. Moreover, maintaining a consistent travel speed … Read more

In GMAW welding, arc length is determined by arc voltage. A constant current power source keeps the current steady. Changes in wire feed speed (WFS) affect the arc voltage. This adjustment controls the wire feed motor and influences the arc length during the welding process. Key factors that determine arc length include the type of … Read more

In helium arc welding, the electrode is made of tungsten. This method, called Gas Tungsten Arc Welding (GTAW) or Tungsten Inert Gas (TIG) welding, uses a non-consumable tungsten electrode. Helium, an inert gas, stabilizes the arc and improves weld quality, making it suitable for various applications in metal joining. Carbon, on the other hand, is … Read more

In shielded metal arc welding (SMAW), the electrodes are called consumable electrodes or stick electrodes. These electrodes have a metal core wire covered with flux coating. During welding, the flux produces a protective gas. This gas shields the weld from contamination and helps create a strong bond between the metals. Beginners must understand electrode classification … Read more

Submerged arc welding is an arc welding process. It generates heat using an electric arc between a bare consumable electrode wire and the work-piece. This method creates deep welds, making it ideal for large-scale industrial applications. It is efficient and produces high-quality welds. In SAW, the granular flux covers the molten weld pool, preventing contamination … Read more