TY - JOUR
T1 - Chatter suppression in diamond turning using magnetic field assistance
AU - Li, Denghui
AU - Yip, Wai Sze
AU - Cao, Hongrui
AU - Zhang, Hanqian
AU - Tang, Yuk Ming
AU - To, Suet
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Project No.: U19A20104 and 52205498 / K-ZGFT ), the Shenzhen Science and Technology Program (Project No.: JCYJ20210324131214039 ), the Innovation and Technology Fund (ITF) of the Hong Kong Special Administrative Region , China (Project Ref.: PRP/071/20FX ), and The Hong Kong Polytechnic University (Project No. P0036837 ).
Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/12
Y1 - 2023/12
N2 - During diamond turning of difficult-to-cut materials in ultra-precision machining, the self-excited vibration (i.e., chatter) is a severe problem that reduces the machining quality of workpieces and accelerates tool wear. In this work, a magnetic field-assisted cutting strategy is developed to suppress chatter during diamond turning of titanium alloys. Considering the radius of the tool nose and the process damping force, the stability of the diamond turning system is investigated. Based on that, the improvement effect of the magnetic field on the system's stability through the eddy current damping effect is analyzed. Diamond-turning experiments with and without magnetic field assistance are carried out under various cutting conditions. The experimental results, which include cutting forces, frequency spectra correlating to the cutting forces, and surface morphologies, indicate that the magnetic field assistance successfully suppresses chatter during diamond turning. The machined surface quality of the workpiece is improved.
AB - During diamond turning of difficult-to-cut materials in ultra-precision machining, the self-excited vibration (i.e., chatter) is a severe problem that reduces the machining quality of workpieces and accelerates tool wear. In this work, a magnetic field-assisted cutting strategy is developed to suppress chatter during diamond turning of titanium alloys. Considering the radius of the tool nose and the process damping force, the stability of the diamond turning system is investigated. Based on that, the improvement effect of the magnetic field on the system's stability through the eddy current damping effect is analyzed. Diamond-turning experiments with and without magnetic field assistance are carried out under various cutting conditions. The experimental results, which include cutting forces, frequency spectra correlating to the cutting forces, and surface morphologies, indicate that the magnetic field assistance successfully suppresses chatter during diamond turning. The machined surface quality of the workpiece is improved.
KW - Chatter suppression
KW - Diamond turning
KW - Difficult-to-cut materials
KW - Magnetic field
KW - Ultra-precision machining
UR - http://www.scopus.com/inward/record.url?scp=85171179669&partnerID=8YFLogxK
U2 - 10.1016/j.jmatprotec.2023.118150
DO - 10.1016/j.jmatprotec.2023.118150
M3 - Journal article
AN - SCOPUS:85171179669
SN - 0924-0136
VL - 321
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
M1 - 118150
ER -