Friction welding is usually accomplished by the following four steps.
1. Transform mechanical energy into thermal energy. 2. Plastic deformation of the material. 3. The setting pressure under thermoplastic phenomenon. 4. Molecular diffusion and recrystallization

As compared to conventional welding approaches, friction welding’s major difference is to keep the increased temperature due to the energy obtained by the metal to be welded below its melting point. That is, the metal is welded under the solid state which is similar to forging under its thermoplastic state.
As compared to conventional welding, friction welding has the advantages of higher-quality welded connections which meet the requirements of seam strength and base material strength, higher welding efficiency, stable quality, better consistency, and the realization of dissimilar metal welds.

Using friction welding for heat sinks can resolve the technical bottleneck of joining two or more materials to form high-aspect-ratio ultra-wide products. Moreover, its tooling cost is lower with a short cycle time and higher stability. Based on the data that has been accumulated by our R&D team in the long run, Winshare Thermal has developed several standard materials and we keep enhancing the database of our standard materials so as to provide our clients with more joint solutions for selection.