Articles & Podcast Episodes

Viva questions on arc welding cover various topics. Key areas include the types of arc welding methods, such as SMAW, GMAW, and GTAW. Questions often focus on safety devices like welding helmets. Candidates may also discuss filler materials and share their practical experiences in welding. Additionally, they may touch on electric arc furnaces and LASER … Read more

The Warning Welding Arc Label informs workers to use eye protection during welding. It has a self-adhesive backing for easy placement on different surfaces. Made from durable vinyl, it is resistant to abrasion, chemicals, and UV light. This label is essential for safety in industrial environments, helping to prevent serious injuries. These labels typically display … Read more

To safely watch a solar eclipse, use welding glasses with a shade level of 14 or higher. Auto darkening helmets may not offer enough protection as they respond to welding arcs, not sunlight. For the best eye protection, choose certified solar eclipse glasses. Follow expert recommendations for safe viewing methods. Before using the mask, inspect … Read more

Weld defects in shielded metal arc welding stem from incorrect amperage settings. Low amperage results in weak welds due to poor penetration and inadequate electrode melting. High amperage may cause excessive melting, leading to splatter and porosity. A consistent arc length is vital for ensuring strong, quality welds. Identification of these weld defects is essential … Read more

Vertical fillet arc welding connects two metal pieces at a vertical angle, typically 45 degrees or less. This process uses techniques like stick welding (SMAW) with a 7018 electrode. Proper joint preparation and puddle formation are crucial for quality. Explore welding courses for detailed guidance on groove and fillet welds. Technique refinement is crucial for … Read more

Vertical submerged arc welding (VSAW) is a technique that uses a continuous bare wire electrode to create an arc. This welding process is effective for joining vertical seams in storage tanks for oil, gas, and grain. VSAW delivers high-quality results efficiently, making it ideal for various welding applications in the industry. Operators benefit from reduced … Read more

To improve vertical uphill welding with 6011 rods, follow these tips: 1. Ensure comfort and stability for a steady hand. 2. Use the whip and pause technique every second. 3. Set the amps to 85 for optimal heat. 4. Learn about ‘dig’ settings for better penetration; adjust to 30 when using 7018 rods. When using … Read more

The welding arc has two main characteristics: constant current and constant voltage. These power sources help control welding conditions. The voltage-current relationship changes with the arc length. A DC welding power source usually operates at 80 volts and 300 amps, which significantly affects the metal transfer and overall welding quality. Arc voltage plays a significant … Read more

Arc eye, or welder’s flash, occurs from UV light exposure during welding. Treatment includes using antibiotic ointment to prevent infection, applying cold compresses to relieve pain, and resting your eyes. Recovery takes a few days. Always wear protective eyewear that meets ANSI Z87.1 standards to avoid future cases. The primary cause of arc eye is … Read more

Most welding glasses do not provide safe protection for viewing an eclipse. Only glasses with shade level 14 are acceptable. Auto-darkening helmets may not function properly since they react to welding arcs. The best choice is to use solar glasses designed for eclipse viewing. Always ensure you protect your eyes from harmful UV rays. However, … Read more