学术讲座通知:光学零件的工业化超精密加工:机床、加工系统与未来应用

发布者:姚晟靖发布时间:2020-12-16浏览次数:335

报告题目:光学零件的工业化超精密加工: 机床、加工系统与未来应用

Ultraprecision machining of high precision optical devices in an industrial scale: machines, systems and future perspectives

报告时间:2020122216:00 - 18:00

报告人:Professor Kai Cheng,Brunel University London

 

报告地点: 机械楼243会议室/腾讯会议850 999 015

 

摘要:In this presentation, it firstly provides a critical review on the fundamentals and key enabling technologies for ultraprecision machining of high precision optical devices in multiple scales, e.g. including contact lenses, vari-focal lenses, infra-red devices, HUDs, fused silica switch mirrors, large optics for satellites and space telescopes. The fundamentals and key enabling technologies cover ultraprecision machines, tooling and machining processes particularly the multiscale Multiphysics based design, modeling and analysis involved. Secondly, it discusses and explores the design methods for existing and next generation ultraprecision machines, comprising of the machine design configuration and specifications, mechanical design, actuation system, control system, tooling interfacing and interaction, in-process monitoring and measurement, the machine system integration. Furthermore, design of the ultraprecision manufacturing system is presented in light of the machines developed and built. The application exemplars are also presented and discussed including design of an ultraprecision machine for manufacturing vari-focal lenses, and ultraprecision machining of contact lenses and PMMA devices in an industrial scale. The presentation is concluded with a further discussion on the potential and application of the proposed approach in broad precision engineering industries.

 

报告人简介:

Professor Cheng is a Chair Professor in Manufacturing Systems at Brunel University London. His current research interests focus on design of high precision machines, ultraprecision and micro/nano manufacturing, smart tooling and smart machining. He is currently leading the Ultraprecision and Micro/Nano Manufacturing Theme at Brunel University London, which involves 12 academic staff, 5 postdoctoral fellows and about 40 PhD students. Professor Cheng and his team have enjoyed working closely with industrial companies in the UK, Europe, USA and Far East. They are working on a number of research projects funded by the EPSRC, NATEP Program, RAEng, Innovate UK program, EU Horizon 2020 Programs, and the industry. Professor Cheng is a Charted Engineer and a Fellow of the IMechE and IET, and also honored as the visiting professor at Harbin Institute of Technology.