光学精密工程2017，Vol.25Issue(12)：2986-2993,8.DOI:10.3788/OPE.20172512.2986
玻璃模压成形用微沟槽磷化镍模具的超精密切削加工
Ultraprecision microgroove machining of nickel phosphorous plating mold for glass molding
摘要
Abstract
The optimal adjacent amount range is an importance parameter in ultra precision microgroove machining of nickel phosphorous (Ni-P) plating mold for glass molding.This paper proposes a method by using small cross angle microgroove cutting to test the optimal adjacent amount range in the process of single point diamond cutting of microgrooves rapidly.In this method,the limits of the adjacent amount range is forecasted based on the similarity of the material removal form between the small cross angle microgroove cutting and the adjacent microgroove cutting.Firstly,the cross angle and microgroove depth are set as the microgroove cutting variables to perform experiments and to obtain several pairs of arrises.Then,the material removed state is analyzed based on the plastic deformation law and brittle-ductile transition theory through the observation of the gradient arrises.The section of removed material in gradient arris machining process is analyzed and compared with that of adjacent microgrooves,and their relationship is established.Finally,the differences between the exit arrises and the entrance arrises are analyzed and the adjacent amount range of the brittle-ductile transition area is determined.According to this method,the arris morphology is observed and calculated,it is found that the critical adjacent amount range of the brittle dissection phenomenal is 570-720 nm in ultra precision microgroove machining of nickel phosphorous (Ni-P) plating mold.The feasibility of the method is verified by ultraprecision machining of the brilliant microgroove mold.The mold is put into service in glass molding process and high precision optical glass microgrooves are manufactured.关键词
模具制造/磷化镍镀层/微沟槽切削/脆塑转变/模压成形Key words
mold manufacturing/nickel phosphorous plating/microgrooves cutting/brittle-ductile transition/glass molding分类
矿业与冶金引用本文复制引用
董晓彬,周天丰,庞思勤,阮本帅,王西彬..玻璃模压成形用微沟槽磷化镍模具的超精密切削加工[J].光学精密工程,2017,25(12):2986-2993,8.基金项目
国家973重点基础研究发展计划资助项目(No.2015CB059900) （No.2015CB059900）
国家自然科学基金资助项目(No.51375050) （No.51375050）
