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 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
Heat generation process
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.
Learn more about technical options feasible for resistance welding from our Weldability Chart.
AMADA MIYACHI EUROPE Resistance Welders
AMADA 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:
Our Troubleshooting Guide will guide you through pragmatic fixes for technical challenges which may occur during the welding process.
Applications Micro Resistance Welding
+ Motor connections
+ Lighting components
+ Battery tabs
Our proven technologies enable the Automotive, Electronics & Solar Cells, IT & Multimedia, Medical, Aerospace and Defence industries to supply a variety of resistance welding applications.
Click on the Resistance Welder icon to learn more about our Resistance Welder products