Micro Resistance Welding is a thermo-electric process in which heat is generated at the interface of the parts to be joined by passing an electrical current through the parts for a precisely controlled time and under a controlled pressure also called force. The name “resistance” welding derives from the fact that the resistance of the workpieces and electrodes are used in combination or contrast to generate the heat at their interface.
Key advantages of the micro resistance welding process include:
• Very short process time
• No consumables, such as brazing materials, solder, or welding rods
• Operator safety because of low voltage
• Clean and environmentally friendly
• A reliable electro-mechanical joint is formed
Micro resistance welding is a fairly simple heat generation process: the passage of current through a resistance generates heat. This is the same principle used in the operation of heating coils. In addition to the bulk resistances, the contact resistances also play a major role. The contact resistances are influenced by the surface condition (surface roughness, cleanliness, oxidation, and platings).
Four parameters influence the quality of resistance welding primarily and need to be monitored closely to achieve best in class results: Materials, Energy, Weld Force and Time. See a summary of those four parameters in our Basics Resistance Welding document.
Learn more about technical options feasible for micro resistance welding from our Weldability Chart.
Miyachi Europe offers a wide range of welding methods which are in use very succesfully for decades such as opposed welding. Please find a selection of five different welding methods described in the links below and illustrated on the right side:
Micro Resistance Welding is a thermo-electric process in which heat is generated at the interface of the parts to be joined by passing an electrical current through the parts for a precisely controlled time and under a controlled pressure also called force. The name “resistance” welding derives from the fact that the resistance of the workpieces and electrodes are used in combination or contrast to generate the heat at their interface.
Applications Micro Resistance Welding
