TY - JOUR
T1 - Chatter analysis and mitigation of milling of the pocket-shaped thin-walled workpieces with viscous fluid
AU - Dang, Xue Bin
AU - Wan, Min
AU - Zhang, Wei Hong
AU - Yang, Yun
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/3/15
Y1 - 2021/3/15
N2 - This article presents a theoretical method to analyze the dynamic behavior of the milling process of the pocket-shaped thin-walled workpieces, which are filled with viscous fluid to suppress the chatter vibrations. Dynamic models of both the spindle-tool system and the pocket-shaped thin-walled workpiece with the viscous fluid are derived by extending the principles of the fluid-structure interaction dynamics theory and structural mechanics. The in-process dynamical parameters of the tool and the workpiece, i.e. natural frequency and modal shape, are solved by comprehensively integrating the effects of the viscous fluid, material removals, and tool position changes. Based on the built models, a method for analyzing the machining stability of this kind of workpieces after using the viscous fluid in the milling process is carried out and the avoidance principle of chatter vibrations is established by reasonably selecting the cutting parameters. A series of simulation and experimental tests are conducted on a typical pocket-shaped thin-walled workpiece to verify the reliability and effectiveness of the proposed methods for the suppression of chatter during the whole milling process.
AB - This article presents a theoretical method to analyze the dynamic behavior of the milling process of the pocket-shaped thin-walled workpieces, which are filled with viscous fluid to suppress the chatter vibrations. Dynamic models of both the spindle-tool system and the pocket-shaped thin-walled workpiece with the viscous fluid are derived by extending the principles of the fluid-structure interaction dynamics theory and structural mechanics. The in-process dynamical parameters of the tool and the workpiece, i.e. natural frequency and modal shape, are solved by comprehensively integrating the effects of the viscous fluid, material removals, and tool position changes. Based on the built models, a method for analyzing the machining stability of this kind of workpieces after using the viscous fluid in the milling process is carried out and the avoidance principle of chatter vibrations is established by reasonably selecting the cutting parameters. A series of simulation and experimental tests are conducted on a typical pocket-shaped thin-walled workpiece to verify the reliability and effectiveness of the proposed methods for the suppression of chatter during the whole milling process.
KW - Chatter suppression
KW - Fluid-structure interaction
KW - Pocket-shaped thin-walled workpiece
KW - Whole machining process
UR - http://www.scopus.com/inward/record.url?scp=85097130690&partnerID=8YFLogxK
U2 - 10.1016/j.ijmecsci.2020.106214
DO - 10.1016/j.ijmecsci.2020.106214
M3 - 文章
AN - SCOPUS:85097130690
SN - 0020-7403
VL - 194
JO - International Journal of Mechanical Sciences
JF - International Journal of Mechanical Sciences
M1 - 106214
ER -