Machining at micrometric and nanometric scales is an ultra-precision material removal process to achieve micron form accuracy and a few nanometer finish. It has gained increasing importance for the manufacture of optical, mechanical, and electronic components with intricate details in many industry and consumer products. The backbone science and technology for the success of machining at such fine length scales hinges on the understanding of microstructual machining mechanics, precision control of machine tool motions, miniaturisation of cutting tool profiles, and the availability of high resolution metrology. In the presentation, these backbone areas are to be examined in a number of recent research developments at Georgia Tech. Microstructual mechanics and cutting at submicron depth of engagement as a means to control brittle-ductile transition of material behavior will be discussed. Precision machine control, compensation of micrometer multi-tooth runout error through piezoelectrically-driven chip load servo and tool miniaturisation, the concept of magnetic single-grit abrasive as a micro cutting tool for submicron dimensional accuracy will be presented. The speaker will also highlight in his presentation, the metrology, a three-dimensional coordinate measuring machine based on auto-focusing quadrant photo diode that achieves nanometric resolution. The presentation of these topics will focus on the underlying fundamentals of fine scale machining and their implications to ultra-precision engineering and micro- and nano-manufacturing.
About the Speaker
Steven Y Liang obtained a PhD in Mechanical Engineering from the University of California at Berkeley in 1987. He holds the positions of Morris M. Bryan, Jr. Professor for Advanced Manufacturing Systems, founding Director of Precision Machining Research Consortium, Director of Manufacturing Education Program, and Associate Director of Manufacturing Research Center at Georgia Institute of Technology, USA since 1990. He also served as President of the Walsin Lihwa Corp., an international conglomerate in the manufacturing of specialty materials with USD 6+ billion revenue and over 7,000 employees world wide from 2008 to 2010. Dr Liang's technical interests include precision engineering, extreme manufacturing, and technology innovation. He has supervised over 70 Post-doctoral studies, PhD dissertations, and M.S. theses and has authored in excess of 300 book chapters, archival journal papers, and professional conference articles in these areas. He has been invited to deliver more than 60 keynote speeches and seminars at manufacturing industries, peer institutions, and professional conferences in over 20 countries on various topics related to manufacturing science and technology. Dr Liang served as President of the North American Manufacturing Research Institution, Society of Manufacturing Engineers (NAMRI/SME) and Chair of the Manufacturing Engineering Division of The American Society of Mechanical Engineers (MED/ASME). Dr Liang is the recipient of many awards including the Robert B. Douglas Outstanding Young Manufacturing Engineer Award of SME, Ralph R Teetor Education Award of the Society of Automotive Engineers, and Blackall Machine Tool and Gage Award of ASME.
3.00pm Welcome & Introduction
3.05pm Presentation on Machining and Metrology at Micro & Nano Scale
4.15pm Refreshment & Networking
Who Should Attend
Industry professionals, R&D managers, researchers, academic staff and students.
Registration for this lecture is free of charge. Seats are available on a first-come, first-served basis. To reserve a place, please register online.
For technical enquiries: Ms Ding Xing, Email: xding@SIMTech.a-star.edu.sg
For general enquiries: Alice Koh, Email: kohth@SCEI.a-star.edu.sg