title: The Magnetorheological Finishing (MRF) of Potassium Dihydrogen Phosphate (KDP) Crystal with Fe3O4 Nanoparticles.
abstract: The cubic Fe3O4 nanoparticles with sharp horns that display the size distribution between 100 and 200 nm are utilized to substitute the magnetic sensitive medium (carbonyl iron powders, CIPs) and abrasives (CeO2/diamond) simultaneously which are widely employed in conventional magnetorheological finishing fluid. The removal rate of this novel fluid is extremely low compared with the value of conventional one even though the spot of the former is much bigger. This surprising phenomenon is generated due to the small size and low saturation magnetization (M s) of Fe3O4 and corresponding weak shear stress under external magnetic field according to material removal rate model of magnetorheological finishing (MRF). Different from conventional D-shaped finishing spot, the low M s also results in a shuttle-like spot because the magnetic controllability is weak and particles in the fringe of spot are loose. The surface texture as well as figure accuracy and PSD1 (power spectrum density) of potassium dihydrogen phosphate (KDP) is greatly improved after MRF, which clearly prove the feasibility of substituting CIP and abrasive with Fe3O4 in our novel MRF design.
authors: Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, People's Republic of China.|China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.|Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Fang
authors: F
authors: Ji
authors: Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, People's Republic of China. minx@fudan.edu.cn.
authors: Min
authors: M
authors: Xu
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China. wangchaohit@126.com.|Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, Sichuan, People's Republic of China. wangchaohit@126.com.
authors: Chao
authors: C
authors: Wang
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Xiaoyuan
authors: X
authors: Li
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Wei
authors: W
authors: Gao
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Yunfei
authors: Y
authors: Zhang
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.|Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Baorui
authors: B
authors: Wang
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Guangping
authors: G
authors: Tang
authors: China Academy of Engineering Physics, Institute of Machinery Manufacturing Technology, Mianyang, 621900, Sichuan, People's Republic of China.
authors: Xiaobin
authors: X
authors: Yue
keywords: Fe3O4; KDP; Magnetorheological finishing