Internal twist drill coolant channel modelling using computational fluid dynamics
2014
Coolant technologies have become increasingly used within twist-drill machining. Internal helical coolant channels are a common means of delivering high-pressure coolant directly to the cutting edge to increase the transfer of heat away from the cutting edge and to aid with chip evacuation. However, the complex behaviour of Coriolis and centrifugal forces generated by large angular velocities and the curvature of the coiled channel govern the highly turbulent flow of coolant. This research uses Computational Fluid Dynamics (CFD) to study the design of internal coolant channels across the internal section of the drill bit.
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