TY - JOUR
T1 - Model of material removal in vibratory finishing, based on Preston's law and discrete element method
AU - Makiuchi, Yusuke
AU - Hashimoto, F.
AU - Beaucamp, Anthony
N1 - Funding Information:
A bowl type vibratory finishing machine is supported by multiple springs, and vibrates under the rotation of an axial pole weighted eccentrically at its top and bottom. For this study, a 500 mm diameter bowl-type machine (ROTO-Finish Spiratron ST-1) loaded with spherical alumina media is modelled in the Rocky DEM software [10] . For simplification, this paper deals only with dry polishing. As the eccentric pole rotates, a centrifugal force is generated that causes periodic oscillation of the bowl.
Publisher Copyright:
© 2019
PY - 2019
Y1 - 2019
N2 - Vibratory finishing is widely used in mass-finishing of components. However, it is difficult to guarantee shape accuracy and predict surface roughness evolution. Here, a material removal model is proposed that is based on Preston's law and statistical overlapping of particle trajectories computed by Discrete Element Method (DEM). After validating DEM motion by particle image velocimetry and rope experiment, the occupancy ratio is studied as function of media type and mixing. Predictions of removal volume and surface roughness agree with experimental results within 12% on average, making this simulation method a very practical tool that reduces the need for extensive trial runs and barrel reloading.
AB - Vibratory finishing is widely used in mass-finishing of components. However, it is difficult to guarantee shape accuracy and predict surface roughness evolution. Here, a material removal model is proposed that is based on Preston's law and statistical overlapping of particle trajectories computed by Discrete Element Method (DEM). After validating DEM motion by particle image velocimetry and rope experiment, the occupancy ratio is studied as function of media type and mixing. Predictions of removal volume and surface roughness agree with experimental results within 12% on average, making this simulation method a very practical tool that reduces the need for extensive trial runs and barrel reloading.
KW - Discrete element method
KW - Finishing
KW - Vibration
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U2 - 10.1016/j.cirp.2019.04.082
DO - 10.1016/j.cirp.2019.04.082
M3 - Article
AN - SCOPUS:85064667420
SN - 0007-8506
VL - 68
SP - 365
EP - 368
JO - CIRP Annals - Manufacturing Technology
JF - CIRP Annals - Manufacturing Technology
IS - 1
ER -