脉冲直流电源对EN-31工件进行球端磁流变纳米加工的研究

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL

Strojniski Vestnik-Journal of Mechanical Engineering Pub Date : 2020-07-15 DOI:10.5545/sv-jme.2020.6681

Himmat Singh, M. Niranjan, Reeta Wattal

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引用次数: 2

摘要

球端磁流变精加工(BEMRF)是一种高级纳米精加工工艺，用于精加工各种表面，包括平面、二维、三维和曲面。本研究采用脉冲直流电源为磁流变精加工工具的电磁铁供电。在EN-31平面工件表面进行了实验，实验条件为:磁化电流(MC) 2.5 a，工作间隙(WG) 1.5 mm，刀具转速(RST) 500 rpm，工件进给速度为50 mm/min。研究分析了占空比对表面粗糙度响应百分比降低的影响。已经观察到，在相同的工艺参数下，与无脉冲直流电源相比，使用脉动直流电源可以改善表面粗糙度的响应百分比降低。在进行初步实验后，采用响应面法(RSM)在0.16占空比下对不同工艺参数对表面粗糙度响应百分比降低的影响进行统计分析。

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A Study for the Nanofinishing of an EN-31 Workpiece with Pulse DC Power Supply Using Ball-End Magnetorheological Finishing

Ball-end magnetorheological finishing (BEMRF) is a high-level nanofinishing process used in finishing different kinds of surfaces including flat, 2and 3-dimensional, and curved surfaces. In the present study, a pulse DC power supply is used to energize the electromagnet of magnetorheological (MR) finishing tool. The experiments have been conducted on EN-31 flat workpiece surface with and without pulse DC power supply using a magnetizing current (MC) 2.5 A, a working gap (WG) of 1.5 mm and a rotational speed of the tool (RST) of 500 rpm with a feed rate of workpiece of 50 mm/min. The study has been carried out to analyse the effect of the duty cycle on the response percentage reduction in surface roughness. It has been observed that an improved response percentage reduction in surface roughness has been found with pulsating DC power supply as compared to the response percentage reduction in surface roughness obtained with DC power supply without pulse at the same process parameters. After conducting the preliminary experiments, the statistical analysis was done to analyse the effect of various process parameters on the response percentage reduction in surface roughness using response surface methodology (RSM) at 0.16 duty cycle.

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来源期刊

Strojniski Vestnik-Journal of Mechanical Engineering 工程技术-工程：机械

CiteScore

3.00

自引率

17.60%

发文量

审稿时长

4.1 months

期刊介绍： The international journal publishes original and (mini)review articles covering the concepts of materials science, mechanics, kinematics, thermodynamics, energy and environment, mechatronics and robotics, fluid mechanics, tribology, cybernetics, industrial engineering and structural analysis. The journal follows new trends and progress proven practice in the mechanical engineering and also in the closely related sciences as are electrical, civil and process engineering, medicine, microbiology, ecology, agriculture, transport systems, aviation, and others, thus creating a unique forum for interdisciplinary or multidisciplinary dialogue.