A: What are the benefits of using friction stir welded heat sinks? The advantages of friction stir welding heat sinks are as follows.
(1) It realized the manufacturing of high aspect ratio, ultra wide, and large-scale heat sink structures and resolved the technical bottleneck of extruded heat sinks;
(2) No interface material is required to bond materials together by the friction welding technique. It’s just like extruding the material to the required form and thus it keeps 100% of the thermal conductivity of the base material;
(3) Lower development cost;
(4) Shorter development cycle;
(5) Friction stir welded heat sinks are highly stable and easy to maintain.