Joining is one of the essential processes to combine two or more members to make products with more sophisticated shapes.
Recently, dissimilar joining, in which materials with different properties are used in the right places for lighter weight and reduced cost, has been attracting more attention.
FCC’s unique joining technology (ring mash joining), which was researched and developed, has made it possible to join dissimilar materials with different melting points, which was previously thought to be impossible.
FCC’s joining technology, which has been cultivated through clutch manufacturing, is evolving daily with our development capability to create unique manufacturing methods and will respond to the needs of the new era.
Selection of Optimal Joining Process to Suit the Material and Needs
CAE Joining Prediction is Under Development
TRY according to Product Needs
Joining of dissimilar Materials having Different Melting Points by Combining Papermaking and Casting Technologies
Ring Mash Joining
Ring Mash*1 joining, which FCC has independently researched and developed for drive train components, is a joining technology that uses the heat of electrical resistance to soften the joint and pressure weld it, realizing a quick and beautiful finish.
Instead of fusing, the metal is softened and pressure welded while in the solid state. In addition to the joining of dissimilar materials, it also enables the joining of heterogeneous materials, such as steel and aluminum, which is essential for next-generation automobiles that aim to save space and reduce weight.*2
*2. Steel and aluminum heterogeneous joining by Ring Mash joining is a patented technology of FCC.
Image of Joining dissimilar Materials
Motorcycle Pulley Parts: Joining steel and aluminum dissimilar materials
Left: dissimilar joining of copper and aluminum
Right: dissimilar joining of stainless steel and aluminum
Shortened Cycle Time, Increased Efficiency
The joining surface is instantly heated and softened by an electric current, and the substrates are joined in less than 0.1 seconds.
The cycle time is drastically reduced compared to conventional methods.
Furthermore, the smoothness of the bonded surfaces eliminates the need for sputtering treatment.
Highly efficient production with minimized processing.
Achieve Lightweight and Cost Reduction by Joining dissimilar Materials
Joining dissimilar materials, such as steel and aluminum and copper and aluminum, promotes reductions in weight and the reduced cost of materials.
Other Technologies Owned
Less thermal distortion compared to TIG or MIG welding.
Electron Beam Welding
Laser Beam Welding
Short joining time and low thermal distortion due to heating only at the joining zone.
Comparatively inexpensive equipment cost.
Fexible Busbar Cable
We developed the Flexible Busbar Cable to efficiently carry heavy current for power applications by using ultrasonic joining technology.
Free cable routing in tight spaces by insulated and flexible cables. No special dies are required for individual parts as was the case with conventional pressed busbars. Contributing to increased design freedom and downsizing of the unit.