Products & Services

See also: Categories | Featured Products | Technical Articles

Conduct Research Top

  • 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
  • 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
  • The Importance of Force Control (.pdf)
    There are many variables associated with the resistance welding process. The three primary variables are weld current, weld time, and electrode force. Secondary variables include, but are not limited to: electrode materials, electrode face size, polarity, material quality, and material composition
  • 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