ABSTRACT

Since the invention of Magneto-rheological abrasive honing (MRAH), it is realized as one of the innovative ultra-precise surface finishing techniques employed for finishing of external intricate surfaces. In this technique, required level of finishing is achieved by assigning simultaneous rotation and reciprocating motion to the workpiece and magneto-rheological fluid, respectively. To recognize the surface finishing process, detailed understanding of material removal mechanism with consequences of various machining parameters on material removal (MR) is essential. Planned experiments (using response surface methodology) were conducted on the brass workpiece with varying rotational speed, finishing time, and magnetic field strength. ANOVA was employed to investigate the influence of chosen parameters on response. From experiments, rotational speed was detected as the most influencing parameter trailed by magnetizing current and finishing time. This paper presents material removal behavior and its mechanism in case of brass workpiece finished by MRAH process.

摘要

自从磁流变研磨珩磨（MRAH）发明以来，它被实现为用于对外部复杂表面进行精加工的创新超精密表面精加工技术之一。在该技术中，通过分别为工件和磁流变流体分配同时的旋转和往复运动来达到所需的精加工水平。要认识到表面精加工过程，必须详细了解材料去除机理，以及各种加工参数对材料去除（MR）的影响。在黄铜工件上进行了计划的实验（使用响应表面方法），具有不同的转速，精加工时间和磁场强度。采用方差分析来研究所选参数对响应的影响。从实验来看 磁化电流和完成时间是影响旋转速度的最大影响参数。介绍了MRAH工艺对黄铜工件进行精加工时的材料去除行为及其机理。