ARC Welding

Arc welding electrodes are coated metal wires that have a similar composition to the base metal. They attach to a welding machine and produce an electric arc when electric current passes through. This arc generates high heat, melting the electrode and base metals, allowing them to fuse together effectively in the welding process. There are … Read more

To weld thin metal correctly, use a stick welder with low amperage settings. Choose a thin electrode, like 6013, and set the polarity to DCEN for better heat management. Move quickly along the joint to avoid burning through or warping. Proper technique ensures strong welds on thin materials like square tubing. Proper technique is essential … Read more

Welding voltage controls the arc length, the gap between the molten weld pool and the wire filler metal. Typical arc welding uses 12-36 volts, while striking an arc requires 50-100 volts. This voltage range ensures effective welding and maintains safety standards in processes like SMAW, GTAW, MIG/MAG, and SAW. Understanding the basics of arc welding … Read more

To weld sheet metal with an arc welder, set the amperage low, around 70-90 amps. Use a thin electrode, like a 6013 rod, for shallow penetration. Place scrap steel under the joint to avoid unwanted warping. Ensure tight fit-ups for a strong bond, and use straight polarity (DCEN) for optimal technique. Next, adjust your welder … Read more

Two types of AC arc welding machines are transformer-type and inverter machines. Transformer-type welders use electromagnetic induction for welding, while inverter machines offer high efficiency and better control. Each type serves different welding needs effectively and efficiently. Inverter-based machines utilize advanced technology. They convert AC power to DC, resulting in better control over welding processes. … Read more

The Lincoln Submerged Arc Welding Guide provides vital information on using submerged arc welding techniques. It covers key areas like filler wire use, flux application, nozzle position, and inch speed. Lincoln Electric offers helpful tutorials that improve deposition and tackle welding challenges, enhancing overall weld quality and efficiency. Effective processes in Lincoln Submerged Arc Welding … Read more

The Lincoln Electric Submerged Arc Welding (SAW) Guide offers essential information on SAW techniques. This method increases deposition using a large diameter wire under a flux layer. It works well for butt joints and various alloys. Discover our welding equipment, flux, wire, and accessories for peak performance in heavy fabrication tasks. To achieve optimal results, … Read more

Keyhole plasma arc welding forms full penetration welds on metals up to 3/8” thick without beveling. This method is ideal for stainless steel in pipeline construction. It enhances welding efficiency by using a stable plasma arc, producing deep, high-quality welds with fewer defects. Optimizations in Keyhole Plasma Arc Welding include adjusting the arc current, gas … Read more

Longitudinal Submerged Arc Welding (LSAW) is a welding technique that produces welded steel pipes. It uses double-sided submerged arc welding to create strong joints for high wall thickness applications. LSAW pipes are vital for oil and gas pipelines because they offer high performance and reliability. The future of LSAW looks promising. Advancements in automation and … Read more

Stick welding is a form of arc welding. It employs an electric arc to melt both the base metal and the filler rod. This technique is also referred to as shielded metal arc welding (SMAW) or manual metal arc welding (MMAW). Stick welding is versatile, suitable for various applications, and favored for its portability. The … Read more