Mostafa K.A. Saleh

Bio: Mostafa K.A. Saleh is an academic researcher from Koç University. The author has contributed to research in topics: Magnetorheological damper & Magnetorheological fluid. The author has an hindex of 1, co-authored 3 publications receiving 6 citations.

The Roles of Magnetorheological Fluid in Modern Precision Machining Field: A Review

Abstract: Owing to some specific advantages, magnetorheological fluid (MRF) has drawn significant attention in a broad range of modern precision machining field. With the diversification and improvement of demands, many novel structure configurations and processing methods have been applied to mechanical machining equipment. Although different applications with MRF have been proposed in existing literature, the classification, latest approaches and further trend are not involved clearly for machining field. Thus, the current applications used MRF are summarized from 2016 to 2020, which include machining auxiliary equipment and surface polishing equipment in this work. Especially, some detailed structures of equipment are investigated and relative limitations are analyzed based on the characteristics of MRF. Finally, in view of the current equipment, advantages and defects are briefly reported; the developing trends of modern precision machining with MRF are discussed. Therefore, in the state-of-the-art review, increasingly important role of MRF are emphasized for the machining field, which are conducive to innovative developments and market selection.

A State-of-the-Art Review on Chatter Stability in Machining Thin−Walled Parts

Abstract: Thin−walled parts are widely used in many important fields because of performance and structural lightweight requirements. They are critical parts because they usually carry the core functions of high−end equipment. However, their high−performance machining has been facing severe challenges, among which the dynamics problem is one of the most important obstacles. The machining system is easily subjected to chatter due to the weak rigidity of the thin−walled structure and slender cutting tool, which significantly deteriorates the surface quality and reduces the machining efficiency. Extensive studies aiming at eliminating machining chatter have been carried out in the recent decades. This paper systematically reviews previous studies on the identification of system dynamic characteristics, modeling and prediction of chatter stability, and chatter elimination/suppression methods and devices. Finally, existing problems are summarized, and future research is concluded.