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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
    by applying heat and pressure. The temperature is usually below the melting point of the materials joined. Hot-press, ultrasonic, diffusion, and explosive welding are examples of solid-state welding. Fusion welding methods, chiefly gas, arc, and resistance, are the most widely used and are less restrictive
  • 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 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 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
  • Medical Device Link . Improving Resistance Welding Process Control in Medical Applications
    and physical pressure is applied through the electrodes to create the actual joint. The amount of heat generated is a function of the amount of current applied, the length of time it is applied, and the resistance profile between the parts being joined. A typical resistance welding
  • Using the Resistance Set Feature (.pdf)
    , can be used to consistently reduce contact resistance prior to the application of the welding current. In the first stage of a resistance weld, heat is focused at the electrode-to-part and part-to-part contact areas. This is due to the high contact resistance relative to the bulk resistance
  • Copper Tungsten
    . Copper tungsten materials are also used in resistance welding electrodes and some circuit breaker applications.