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  • The Influence of Water Temperature & Flow on Resistance Welding Electrode Life
    Many studies have been made to determine the best copper alloys for producing high-quality welds and long life when resistance welding steel, particularly galvanized metal. New electrode designs that use unique geometry have been developed to accomplish the same results. Many control designs can
  • Welding
    as to the materials that can be joined. Diffusion welding is employed primarily to join high-strength materials. In arc welding, an arc between an electrode and the workpiece generates heat. Shielding the molten weld metal from the atmosphere with gases fed in or generated by the weld reaction
  • TIG Welding
    Often called TIG welding (Tungsten Inert Gas), this welding process joins metals by heating them with a tungsten electrode which should not become part of the completed weld. Filler metal is sometimes used and argon inert gas or inert gas mixtures are used for shielding. Consumables: tungsten
  • Stick Welding
    Stick, the most basic of welding processes, offers the easiest option for joining steel and other metals. Stick welding power sources deliver inexpensive options for welding versatility, portability and reliability. Stick joins metals when an arc is struck between the electrode and the work piece
  • 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
  • Resistance welding tackles tubes
    Deformation Resistance Welding (ADRW) makes uniform-strength, leaktight welds in tubes faster than possible with traditional methods. Resistance (spot) welding has been used for years to rapidly join sheet metals such as automobile body panels. Here, a pair of blunt-ended electrodes apply electric
  • Resistance Welding Fundamentals (.pdf)
    the fact that the resistance of the workpieces and electrodes are used in combination or contrast to generate the heat at their interface. Resistance welding is a fairly simple heat generation process: the passage of current through a resistance generates heat. This is the same principle used
  • Resistance Spot Welding Is Still Spot On
    Resistance spot welding may be an older method, but it is still one of the best for welding many industrial parts, especially in the high-volume production stage. Used extensively in automotive and electronic parts manufacturing, resistance spot welding basically is sandwiching two metals
  • The Importance of Squeeze Time in Resistance Welding (.pdf)
    Controlling the electrode force is a critical part of successful resistance welding. Repeatable weld force provides for consistent welds. For this reason, all Unitek Peco weld heads include a standard force-firing feature that initiates the power supply when a preset electrode force is reached
  • The Benefits of Closed-Loop Control for the Resistance Welding Process (.pdf)
    welding principles. At the beginning of a resistance weld there is high electrical resistance at the electrode-to-part and part-to-part contact areas (Figure 1). If too much energy is applied before the electrodes have a chance to seat properly, these contact areas can overheat, resulting

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