TY - GEN
T1 - Effect of turning parameters on surface quality of ultra-precision machining of progressive multifocal lens
AU - Tan, Rongkai
AU - Sun, Tao
AU - Qin, Zhanbiao
AU - Zhao, Xuesen
AU - Zou, Xicong
AU - Hu, Zhenjiang
N1 - Publisher Copyright:
Copyright © Proceedings of the 20th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2020. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Progressive multifocal lens is a typical optical free-form surface element. Compared with the traditional spherical lens, the diopter of the far-view area and the near-view area of the progressive multifocal lens are different, and the diopter gradually changes smoothly in the intermediate transition area. The wearer can continuously and clearly see objects at different distances. However, due to the complex surface structure of the progressive multifocal lens, the machining cost is high, so its application is limited. In this study, a new machining method named single-point diamond ultra-precision turning technology based on fast tool servo (FTS) is proposed, which can achieve the fabrication of progressive multifocal lens with high finished surface quality and low manufacturing cost. In this paper, the three-dimensional geometric model of progressive multifocal lens surface is converted into equidistant spiral line according to the principle of turning non-rotational symmetric curved surface. In addition, the effect of spindle speed, feed rate and cutting depth on the finished surface quality of the progressive multifocal lens are investigated. The experimental results show that the proposed method is feasible for the sustainable and high-efficiency fabrication of progressive multifocal lens.
AB - Progressive multifocal lens is a typical optical free-form surface element. Compared with the traditional spherical lens, the diopter of the far-view area and the near-view area of the progressive multifocal lens are different, and the diopter gradually changes smoothly in the intermediate transition area. The wearer can continuously and clearly see objects at different distances. However, due to the complex surface structure of the progressive multifocal lens, the machining cost is high, so its application is limited. In this study, a new machining method named single-point diamond ultra-precision turning technology based on fast tool servo (FTS) is proposed, which can achieve the fabrication of progressive multifocal lens with high finished surface quality and low manufacturing cost. In this paper, the three-dimensional geometric model of progressive multifocal lens surface is converted into equidistant spiral line according to the principle of turning non-rotational symmetric curved surface. In addition, the effect of spindle speed, feed rate and cutting depth on the finished surface quality of the progressive multifocal lens are investigated. The experimental results show that the proposed method is feasible for the sustainable and high-efficiency fabrication of progressive multifocal lens.
KW - Progressive multifocal lens
KW - Surface quality
KW - Turning parameters
KW - Ultra-precision machining
UR - https://www.scopus.com/pages/publications/85091595730
M3 - 会议稿件
AN - SCOPUS:85091595730
T3 - Proceedings of the 20th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2020
SP - 401
EP - 402
BT - Proceedings of the 20th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2020
A2 - Leach, Richard K.
A2 - Billington, David
A2 - Nisbet, C.
A2 - Phillips, D.
PB - euspen
T2 - 20th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2020
Y2 - 8 June 2020 through 12 June 2020
ER -