Evaluation of the effects of immersion cooling grinding (ICG) method on the surface characteristics and microstructural changes in grinding of CK45 steel

Articles in Press

Document Type : Original Article

Authors

1 Master of Science, Mechanical Engineering, Technical and Vocational Organization of North Khorasan, Bojnourd, Iran

2 Mechanic-engineering faculty- Quchan university of technology-Quchan-Iran

3 Faculty Member, Department of Mechanical Engineering, University of Tarbat Heydarieh, Tarbat Heydarieh, Iran

10.22034/ijme.2024.434795.1911

Abstract

In this research, a new innovative method for lubrication and cooling of the flat grinding process, called immersion cooling, was studied in order to reduce the adverse effects of heat buildup on the surfaces of ground parts. To evaluate the advantages of this method, CK45 steel was ground using two cooling methods, immersion cooling and minimum quantity lubrication (MQL), with different cooling flow rates (15 and 40 cc/s) at different temperatures (25, 0, and -10 degrees Celsius) and with different cutting depths (0.005/0, 0.01/0, 0.02/0, and 0.03/0 millimeters). Other parameters such as grinding wheel speed and longitudinal and transverse table feed rates were kept constant in each experiment. The measured quantities included surface roughness, surface hardness (Rockwell C scale), and evaluation of microstructural changes (using scanning electron microscopy) on the sample surfaces. The results indicate that the use of immersion cooling improved the surface roughness by approximately 34% and increased the surface hardness by 6% compared to the minimum quantity lubrication method in CK45 steel. Therefore, the use of the proposed method can be beneficial in reducing the effects of the grinding process on the surface of workpieces made of CK45 steel.

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Iranian Journal of Manufacturing Engineering

Articles in Press, Accepted Manuscript
Available Online from 31 January 2024

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