Technology Lecture: Ultra-Precision Machining Technology

Date: 15 Jul 2008 - 15 Jul 2008

Venue: SIMTech Seminar Room, Level 1, Valley Block

Ultra-precision machining technology based on single-point diamond turning (SPDT) and ultra-precision freeform machining have become an indispensable tool for the design and the manufacture of high- technology and high-precision lenses. The process is capable of producing components with micrometer to sub-micrometer form accuracy and surface roughness in the nanometer range. With the fast growing development of  machining technology, ultra-precision machining technology is used not only for manufacturing  symmetrical spherical and aspheric workpieces, but also to produce some very complex and non-symmetrical microstructures such as v-grooves, microlens arrays, progressive lenses, F-theta lenses, and more complicated freeform surfaces. 

In this presentation, the following subjects will be discussed: the application and development of ultra-precision machining technology; current research in the cutting mechanics; the effect of material anisotropy; the crystallographic shear angle model; the characterisation of 3D surface generation; multi-axis ultra-precision freeform machining and virtual machining.

About the Speaker 
Professor W B Lee, is Cheng Yick-chi Chair Professorof Manufacturing Engineering. He is the Director of theAdvanced Technology Manufacturing Research Centre of The Hong Kong Polytechnic University. He is the ex-President of the Hong Kong Advancement of the Association of Science and Technology, and Past Chairman of the Institution of Electrical Engineers Hong Kong. 

Professor Lee is the regional editor of the Journal of Materials Processing Technology (Elsevier), member of Editorial Board of the Proceedings the Institution of Mechanical Engineers UK, Part B: Journal of Engineering Manufacture, member of the Editorial Board of the Chinese Journal of Mechanical Engineering. He has also been Chairman of several International Conferences in Manufacturing Engineering & Materials Processing. 

Professor Lee’s research interests include manufacturing technology, ultra-precision machining and manufacturing strategy. He has published three research monograms, and has more than 300 papers published in referred journals and conferences. 

2.15pm  : Registration

2.30pm  : Presentation

3.30pm  : Refreshments & Networking

4.00pm  : End

Who Should Attend
Researchers from A*STAR RIs, engineering and academic staff.

Registration for the lecture is free of charge. Seats are available on a first-come, first-served basis.

For technical enquiries, plesae contact
Dr Gary Ng Ka Lai, Research Engineer, Machining Technology Group, Email:

For registration & general enquiries, please contact
Alice Koh,