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  • Arc-Welded Studs
    In stud welding, the heat of an electric arc drawn between the fastener and the work melts a quantity of metal, after which the two heated parts are brought together under pressure. Welded fasteners must be made of a weldable material, and one end of the fastener must be designed for welding. Stud
  • Guarding against arc flash
    to a loss of eyesight. It can also spew molten metal considerable distances where it can lodge in skin or ignite clothing. A 10,000-A arc on a 480-V circuit is said to have the explosive force of eight sticks of dynamite. The National Fire Protection Agency (NFPA), Occupational Safety and Health
  • Arc Flash Concerns & Detecting Early Signs (.pdf)
    The National Electric Code (NEC) has been requiring an arc flash assessment for a few years now, but Utilities do not have to abide by NEC. However, now that the 2007 edition of NESC requires an arc flash assessment by January 1, 2009, all Utilities nationwide will have to perform an assessment
  • "Cold " Laser Beam Improves Arc Welding, Saves Money
    COLUMBUS, Ohio - While arc welding has been used for decades to join metal parts on everything from cars to boats to airplanes, the basic technology behind this multi-billion dollar industry has changed little since World War II. have devised a way to improve the precision of arc welding, and even
  • MIG Welding Guide
    MIG Welding Guide. MIG (metal inert gas) welding, also known as gas metal arc welding (GMAW), is a key joining technology in manufacturing. This book provides a comprehensive, practical and accessible guide to this widely used process.
  • Ultrasonic Metal Welding for Wire Splicing and Termination
    useful application of this technology. Commonly used techniques involving the fusion of metal through the application of heat by flame, hot tools, electric current or electric arc in combination with cleaning and fluxing agents and sometimes filler metals are able to join these materials
  • MIG Welding Guide
    IG Welding (GMAW or Gas Metal Arc Welding) — An arc welding process which joins metals by heating them with an arc. The arc is between a continuously fed filler metal (consumable) electrode and the workpiece. Externally supplied gas or gas mixtures provide shielding. Common MIG welding is also
  • Design Considerations to Increase Power Density in Welding Machines Converters Using TRENCHSTOP(TM)5 IGBT
    The demand for portable low cost welding machines, especially in developing countries, is increasing. In the Manual Metal Arc and Tungsten Inergt Gas types, in power range from 1,5kW up to 5kW, discrete IGBTs and MOSFETs are broadly used. Mostly, these machines use hard switching current mode PWM
  • Do You Need Do TIG or MIG Welding for your Sheet Metal Fabrication Project?
    While there are a few different types of welding processes, both TIG and MIG welding can be used for sheet metal. TIG stands for tungsten inert gas, while MIG stands for metal inert gas. Both rely on a electric arc when creating the weld. When determining whether you'll be using TIG or MIG welding
  • Analysis of Trace Elements in Tungsten Carbide using the Teledyne Leeman Labs Prodigy DC Arc
    Tungsten carbide is a fine gray powder with a melting point of 2870ºC and a hardness of 8.5-9.0, surpassed in hardness only by diamond materials. Tungsten carbide is produced via reaction between tungsten metal and carbon at high temperatures; it is not a naturally occurring compound. The hardness