The friction stir channel (FSC) extends the friction stir process where an integral channel is fabricated by continuous voids or tunnel defects. FSC can generate the subsurface path in complex shapes as the processing is performed from the workpiece surface. The unique features of the process can fulfil the advanced heat sink applications in critical thermal management systems such as cooling of EV battery cells, data servers, jet engines and aircraft components.
This research investigates the impact of shoulder-workpiece separation on the friction stir channeling of copper, comparing two distinct tool designs. One design includes a clearance between the tool shoulder and workpiece; while, the other utilizes …
The fabrication of compact heat exchangers with precisely designed micro- and minichannels is crucial for enhancing the efficiency of thermal management systems. Friction stir channeling (FSC) emerges as a cost-effective advanced manufacturing …
The capability of manufacturing controlled and uniform geometry of channels is critical for potential application of friction stir channeling in thermal systems. The channel geometry is governed by the material flow around the tool during the …
Integral mini-channels fabricated in the metal substrate by friction stir channeling process are different from conventional mini-channels due to irregular shape, and large surface roughness. The effect of axial wall conduction on heat transfer in …
In this study, an experiment is performed to investigate material flow and its implication on the channel formation in friction stir channeling process. X-ray Computed Tomography in combination with optical microscopy is used to analyse bulk material …