Study on new highly effecient ultra fine hole and pocket processing method apllyed magnet and electric field synagy effect

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K04135
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 18020:Manufacturing and production engineering-related
• Research Institution: National Institute of Technology, Toyama College
• Principal Investigator: Ymamoto Hisashi 富山高等専門学校, その他部局等, 准教授 (80734409)
• Co-Investigator(Kenkyū-buntansha): 西田 均 富山高等専門学校, その他部局等, 特命フェロー (00390435) ; 池田 愼治 公立小松大学, 生産システム科学部, 准教授 (50361126)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 磁気混合流体 / 精密研磨 / 磁場・電場 / 研磨効率 / 砥粒制御

Outline of Final Research Achievements

In this study, it is clarified that characteristics of precision polishing method applied magnetic and electric fields utilizing magnetic compound fluid with abrasive particles (it is called MCF polishing fluid). It is found that surface smoothness are more improve with magnet and electric field than with only magnet field. It was suggested that the necessary to design the optimum tool clearance and shear rate for polishing wall-side and bottom surface at same time.

Free Research Field

流体工学，生産加工学

Academic Significance and Societal Importance of the Research Achievements

MCF加工液を用いた研磨において磁場に加えて電場を同時に作用させることで砥粒の配置制御が可能となることが示された．このことは複雑な形状を有する等のために従来の研磨法を適用することが難しい製品への自動研磨の可能性を見出す技術であると考える．また，目的の研磨物に適した工具形状を設計することで角部等への研磨の可能性を示すことができたと考える．