Design, Fabrication and Simulation of Micro-EDM Machined AISI 316 SS Micro-channel Heat Sink
Micro-sized equipment used by many industries like automobile, robotics, micro-electronic mechanical systems, etc., is always prone to generation of heat. The elimination of generated heat from these systems is a difficult and costly affair. Though various approaches may be taken towards the elimination of heat from these systems, a micro-channel heat sink is one of the simplest and cheapest devices employed for the purpose. In the present work, a micro-channel heat sink, using a suitable low-cost material, i.e. AISI 316 SS, is fabricated through the micro-EDM process. Micro-EDM is a non-traditional machining process which allows high precision machining of many difficult to machine materials. Post fabrication, pressure drop and heat transfer in the heat sink are simulated using ANSYS Fluent®. Water, at varying flow rates, is taken as the working fluid, and the effect of surface roughness of fabricated channels is also incorporated in the simulation. Increase in flow rate is found to have a negative influence on heat sink performance as pressure drop increases in addition to decrease in temperature change between inlet and outlet.
KeywordsMicro-EDM Micro-channel Surface roughness Heat sink Pressure drop
Authors would like to acknowledge the financial support provided by DST SERB through the grant EMR/2016/003372.
- 7.Ashok Kumar, U., Laxminarayana, P., Aravindan, N.: Study of surface morphology on micro machined surfaces of AISI 316 by Die Sinker EDM. Mater. Today Proc. 4(2), 1285–1292 (2017)Google Scholar