Characterisation of Micro Channels Machined with ECDM for Fluidic Applications

Abstract:

Electro Chemical Discharge Machining (ECDM) process is an innovative micro machining process to machine electrically conducting and non-conductive materials for micro level application. In this paper an attempt has been made to machine micro channels with ECDM process for micro fluidic application. Micro channels are machined for three different speeds for borosilicate glass with tungsten copper alloy tool of 300 micron diameter with optimized process parameters. Flow rate across micro channels are measured and are found to be reliable for micro fluidic application. Micro channels are found to have good surface finish when machined with optimal conditions. Micro ECDM process is found to be cheaper and faster process compared to existing machining operations in non-conducting materials.

• Periodical: Applied Mechanics and Materials (Volume 877)
• Pages: 82-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.877.82
• Online since: February 2018
• Authors: Lijo Paul*, Bibin P. George, Ashwin Varghese
• Keywords: Electro Chemical Discharge Machining, Electro Chemical Machining, Electro Discharge Machining, Material Removal Rate (MRR), Micro Channels

References

[1] Han, M.S., Min, B.K. and Lee, S.J., Modeling gas film formation in electrochemical discharge machining processes using a side-insulated electrode, Journal of Micromechanics and Microengineering. 18 (2008)1-8.

DOI: 10.1088/0960-1317/18/4/045019

[2] Tang, L. and Zhao, G., Discussing the measure of improving pyrex glass ECDM removal rate, Advanced Materials Research. 411 (2012) 319-322.

DOI: 10.4028/www.scientific.net/amr.411.319

[3] Lijo P, Libin V.K., Effect of Power Source in ECDM Process with FEM Modeling, Procedia Technology. 25 (2016)1175-1181.

DOI: 10.1016/j.protcy.2016.08.236

[4] Evander, M. and Tenje, M., Microfluidic PMMA interfaces for rectangular glass capillaries, Journal of Micromechanics and Microengineering. 24 (2014)1-5.

DOI: 10.1088/0960-1317/24/2/027003

[5] Eunice S L., Dwight H., Enzhu L., Scott D.C. and Rosemary L S., Removable tubing interconnects for glass-based micro-fluidic systems made using ECDM, Journal of Micromechanics and Microengineering. 14 (2004) 535-541.

DOI: 10.1088/0960-1317/14/4/014

[6] L. Changjian, G. An, L. Mengand Y. shengyi, The Micro-Milling Machining of Pyrex Glass Using the Electrochemical Discharge Machining Process, Advanced Materials Research,. 403(2012) 738-742.

DOI: 10.4028/www.scientific.net/amr.403-408.738