Optimization of Parameters Affecting Magnetic Abrasive Finishing Process Using Response Surface Method

Document Type : Research Article

Authors

1 PhD Student, Mechanical Engineering Department, Amirkabir University of Technology

2 Mechanical Engineering Department of Amirkabir University of Technology

3 Full Professor, Mechanical Engineering Department, Amirkabir University of Technology

Abstract

Magnetic abrasive finishing is a nano-machining process; due to low machining temperature, this process is categorized as a cold forming process. Therefore, the machined surface is free from thermal damages such as microcracks, phase changes, burnt area and etc. In this paper, the effects of machining parameters (machining gap, work piece rotational speed and abrasive particles’ type) on work piece surface roughness have been experimentally studied. To achieve this goal, a series of experimental tests were conducted on a newly developed setup and work piece surface roughness was measured. The results of experimental studies were then used to develop a mathematical model for work piece surface roughness using response surface method. The results show that there is good agreement between experimental results and model predictions. This model was then used to minimize workspace surface roughness. In the selected range of machining parameters the minimum value of surface roughness is achieved by work piece rotational speed of 373.73 rpm, machining gap of 1.98 mm and using diamond particles as abrasive. In addition, it was shown that abrasive particles’ type is the most affecting parameter on work piece surface roughness.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 10
January 2021
Pages 2691-2708

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