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Plenary Speakers

FANG Fengzhou

Fengzhou Fang

Laboratory of Micro/Nano Manufacturing Technology (MNMT)

Tianjin University

China

  

Damage-free finishing of optical crystal surfaces by means of plasma modification

Abstract: The atomic-level surface plays a crucial role in improving the damage threshold of optical crystals. The exploration of new finishing processes at the atomic and close-to-atomic scale (ACSM) is expected to lead to breakthroughs in device performance. Sesquioxide crystals are considered ideal for optical applications due to their low phonon energy, high thermal conductivity, high damage threshold, and high quantum efficiency. However, achieving an atomically smooth surface without subsurface damage is challenging due to the high hardness, brittleness, and low fracture toughness of sesquioxide laser crystals, limiting their applications. This plenary speech presents a novel process for atomic-level surface processing based on plasma-assisted etching (PaE). A comprehensive PaE system has been established to conduct investigations on finishing crystal surfaces. The exploration of high-performance machinery for atomic-level surface processing, along with the investigation of related technologies, can significantly contribute to the advancement of high-end manufacturing technology.

Biography: Professor Fengzhou Fang has been working in the fields of freeform optics design and manufacturing, bio-manufacturing, ultra-precision machining and metrology, and machine learning when he became a faculty member at university in 1982. He is the President of the International Academy of Production Engineering (CIRP), the former President of the International Academy of Engineering and Technology (AET) and the editor-in-chief of Nanomanufacturing and Metrology (NMME). Professor is also a fellow of CIRP, AET, the International Society for Nanomanufacturing (ISNM), and the Society of Manufacturing Engineers (SME).


A Senthil Kumar

Senthil Kumar Anantharajan

Department of Mechanical Engineering

National University of Singapore

Singapore

  

A Study on the Development of a Smart Manufacturing Framework

Abstract: Micro milling is a manufacturing technique that is used for producing miniature features with intricate geometries. This has gained significant importance in various industries, including aerospace, electronics, and medical devices. To enhance the efficiency, accuracy, and overall productivity of micro milling operations, the tool geometry must be monitored and hence the development of a Digital Twin Framework to monitor the performance of the machine tool has become imperative. This research presents the design and implementation of a comprehensive Digital Twin Framework tailored specifically for micro milling processes. The framework encompasses a multi-faceted approach, combining advanced simulation, real-time data acquisition, and machine learning techniques. In addition, a discussion on how a smart incremental sheet metal forming is developed will be discussed. Finally, a discussion on the future of manufacturing, envisioning a world where digital twins and the metaverse converge will be provided.

Biography: A. Senthil Kumar is an Associate Professor of Mechanical Engineering at the National University of Singapore. His expertise is in manufacturing with focus on Smart Manufacturing of micro/nano structures and fixture design. He has co-authored 2 books and has published over 250 technical papers in International Journals and conferences. He serves in the editorial board of the Journal of Manufacturing Processes, USA, Journal of Micro Manufacturing, Journal of Nanotechnology and Precision Engineering, Journals of Machines and Journal of Materials. He received several awards including the Outstanding Young Manufacturing Engineering Award, SME, USA and IES Prestigious Engineering Achievement Award from the Institute of Engineers, Singapore. He is a Fellow of ASME and ISNM. He has five patents to his credit and has licensed the technology to start a spin-off company which specializes in the manufacturing of ultra-precision machine tools.


LEE Dong Yoon

Dong Yoon Lee 

Digital Transformation R&D Department

Korea Institute of Industrial Technology

Korea

Digital Transformation of Machining Process

Abstract: Currently, digital transformation has a significant impact on human lives. Digital transformation does not just mean a transformation of a (non-) physical element to a digitally identifiable one. It focuses on the utilization of digital technology for transforming and improving procedures or routines of business and operation. The manufacturing industry also recognizes digital transformation as a core competitive strategy and has been adopting the latest digital technology. This presentation delves into three crucial aspects of the digital transformation of the machining process: Data (D), Network (N), and Artificial Intelligence (A). As the generation and storage of data is much easier and cheaper, a large amount of digital data is being created. Data needs to be accurate and consistent, but every piece of manufacturing data, from model data [CAD] to inspection data [GD&T], should be cross-referenced to utilize the stored data and derive value from it. Firstly, the digital thread for the machining process will be addressed as an important aspect of data cross-referencing. A network is inevitable in digital transformation. Many devices and equipment are being connected to the internet, but communication among them is challenging due to the use of diverse protocols. The connection can be easily achieved, but the communication is not. Secondly, a unified CNC interface platform will be addressed as an important aspect of network exchangeability. There have been many trials in the application of AI in the manufacturing industry. Lastly, The AI application for process planning will be briefly addressed.

Biography: He is a principal researcher at the Korea Institute of Industrial Technology. He received a Ph.D. degree in Mechanical Engineering from KAIST. His research topics include in-process monitoring/control through CNC communication and sensors, virtual machinin ses and a unified CNC communication platform. He is also actively involved in implementing a machine tending system. g, and process optimization. Currently, he is focused on developing and applying the digital thread for machining processes and a unified CNC communication platform. He is also actively involved in implementing a machine tending system.


LU-Tien-Fu.jpg

Tien-Fu Lu

School of Electrical and Mechanical Engineering

The University of Adelaide

Australia

 

From precision to ‘precisions’ – a research journey and the lessons learned

Abstract: This talk mainly presents some precision engineering research at the speaker’s Robotics Research Lab, School of Electrical and Mechanical Engineering, the University of Adelaide, South Australia accompanied by the lessons learned. The research to be covered includes nano-positioning using piezoelectric stack actuator and compliant mechanism, ‘precision’ robotics, ‘precision’ mining, ‘precision’ space technology, quantum enhanced ‘precision’ control, and ‘precision’ agriculture.

In addition to reporting the research, the ups and downs as well as the lessons learned will be shared. As every researcher is different, it is hoped that the lessons shared will remind and assist young researchers navigating their careers more successfully and satisfactorily, and the established researchers mentoring and cultivating the young researchers with more enjoyable life-long impacts.

Biography: Tien-Fu Lu received his Bachelor and MS of Science in Mechanical Engineering from National Cheng Kung University, Taiwan, followed by Ph.D. in Manufacturing and Mechanical Engineering from University of south Australia, Australia, in 1997. He is currently a senior lecturer and the associate head of school – international and external engagement at the School of Electrical and Mechanical Engineering, University of Adelaide.

He has been teaching courses including Robotics M, Electronics IIM, Mechatronics 1M, Sports Engineering I, and Sports Engineering II.

His research interests are mainly in the fields of Mechatronics and Robotics covering piezoelectric actuators/energy harvester, nano-positioning and measurement technologies, exoskeleton, flexure hinges, compliant mechanisms, chemical plume tracing using robots, operation modelling and optimisation. The applications are broad involving different industries including mining, agriculture, advanced manufacturing, space, and defence. He has been a Board member of ASPEN (Asia Society tor Precision Engineering and Nanotechnology since 2013, http://www.aspen-soc.org/#conferences. Besides, he has been contributing as members of various conference committees and chair/co-chair of sessions and editorial members of journals (editorial board member and co-editors). His career total citation is so far 2499 and the top cited paper has reached 403 citations. He was appointed as a specially employed associate professor (18/Nov/2017 – 17/Jan/2018) by the Graduate School of Frontier Sciences, the University of Tokyo.

As a chief investigator, he has been awarded grants in the past 5 years jointly with colleagues for more than 22 million dollars in total. He has published over 150 articles including book chapters, journal, and conference articles in the field of robotics and mechatronics. More details can be found at: https://researchers.adelaide.edu.au/profile/tien-fu.lu


TSAI Hung Yin

Hung-Yin Tsai

College of Engineering

National Tsing Hua University

Taiwan

  

Fabrication and Field Emission Characteristic of Carbon-Based Nano Composite Materials

Abstract: The field emission theory was proposed by Fowler and Nordheim. It states that when the material is applied an electric field, the barrier at the surface of an electron conductor becomes rounded triangular, and individual electrons can escape from the material in various circumstances. In recent years, a lot of field emission studies used carbon nanotubes (CNTs), graphene, diamond and other carbon materials as cathodes. Although CNTs have good field emission effect, the lifespan of the CNTs and the screening effect limits its applications.

In this presentation, the screening effects by different patterned carbon-based structures are introduced. A special diamond structure can slightly lower the screening effect. In addition, different kinds of carbon-based structures developed in Prof. Tsai’s lab, such as micro-crystal diamond/CNTs double-layered pyramid arrays, bristling few-layer graphite/diamond, and carbon nano-flake ball/CNT hybrid material, will be discussed.

Biography: Professor Hung-Yin Tsai is a Chair Professor and Dean of the College of Engineering at National Tsing Hua University in Taiwan. He received his Ph.D. in power mechanical engineering from National Tsing Hua University in 1999. His research interests include nano/microstructure fabrication and opto-electromechanical technology, advanced material and precision manufacturing technology, image processing, artificial intelligence and intelligent manufacturing, patent analysis, and creativity. In addition, he has published more than 100 journal articles, 150 conference papers, and 60 granted or pending patents in the above-mentioned areas.

WANG Zuankai

Zuankai Wang 

Department of Mechanical Engineering

The Hong Kong Polytechnic University

Hong Kong

  

Multiscale manufacturing: From Structures to Functions

Abstract: A defining feature of living organisms lies in their efficient use of surfaces to dynamically interface with environments for a continuous flux and exchange of water, energy, heat, and information. The ubiquity and diversity of elegant natural surfaces inspire us to construct a wide range of functional surfaces. Despite extensive progress, it appears challenging to design, manufacture and adopt artificial surfaces that exhibit high performances as their natural counterparts. The challenges originate from the complexity in adopting one surface design and multiscale manufacturing to resolve many seemingly contradictory properties to yield optimized functions for many practical applications, especially in harsh environments. 

In this talk, I will discuss how to design, manufacture nature-inspired surfaces with tailored complementary properties in topography, wetting, thermal/electrical conductivity, stiffness to overcome the inherent tradeoff otherwise associated with homogeneous design for water, energy, environment and healthcare applications.

Biography: Prof. Zuankai Wang is currently Chair Professor of Nature-Inspired Engineering in the Department of Mechanical Engineering at The Hong Kong Polytechnic University (PolyU) and concurrently serves as Associate Vice President (Research & Innovation). Professor Wang received his B.S. degree from Jilin University in 2000, M.S. degree from the Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, in 2003, and Ph.D. degree from Rensselaer Polytechnic Institute in 2008. After a one-year postdoctoral training at Columbia University, he joined the City University of Hong Kong (CityU) as Assistant Professor in 2009 and was promoted to Chair Professor in 2021.  He was the Associate Dean of the College of Engineering from 2019 to 2022 and the founding Deputy Director of Research Centre for Nature-Inspired Engineering from 2021 to 2022 at CityU. He is currently the Executive Editor-in-Chief of Droplet journal (Wiley).

Professor Wang is a founding member of the Hong Kong Young Academy of Sciences, Fellow of the International Society of Bionic Engineering (ISBE), Croucher Senior Research Fellow (2023), RGC Senior Research Fellow (2022), Highly Cited Researcher (Cross-field) recognized by Clarivate (2022), and Changjiang Chair Professor conferred by Ministry of Education of China (2016). His work has been recognized by the Guinness Book of World Records and two inventions have won the International Exhibition of Inventions of Geneva Gold Medal and Gold Medal with Congratulations of Jury, respectively. He has received many awards including the Falling Walls Science Breakthroughs of the Year 2023 (Engineering & Technology), Green Tech Award (2021), Xplorer Prize (2020), Hall of Fame (Advanced Engineering Materials, 2019), 35th World Cultural Council Special Recognition Award (2018), President's Lectureship (2020, 2018), Outstanding Research Award (Senior, 2017), President's Award at CityU (2017, 2016).


YAMAUCHI Kazuto

Kazuto Yamauchi 

Division of Precision Science & Technology and Applied Physics

Osaka University

Japan

 

Ultimate condensation of X-ray free electron laser down to single nanometer size by precision mirror devices

Abstract: Mirror devices are attractive to condense X-rays because of their achromaticity, large acceptance, high throughput, long working distance, and so on, compared with other devices such as lenses and Fresnel zone plates. Currently, focused beams with sizes of several tens of nanometers are commonly provided by mirror devices. However, in the ultimate condensation down to a single nanometer size, the required shape accuracy becomes unprecedentedly high to be less than 1nm in peak-to-valley over the whole area of the mirror surface with a 100mm scaled size. We have developed two kinds of deterministic fabrication processes utilizing visible laser interferometer metrology and at-wavelength metrology, and we have achieved an ultimate condensation of Japanese X-ray free electron laser, SACLA (Spring-8 Angstrom Compact free electron LAser), down to 7nm. We will explain the deterministic manufacturing methods of precision mirror devices and represent experimental results of the world's first observed non-linear optical phenomenon in the X-ray regime.

Biography:

Professor at Osaka University

Address: 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan

Phone: +81 6-6879-7285

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

URL: http:// www-up.prec.eng.osaka-u.ac.jp

He has been a Professor at Osaka University since 2003 and has been a leader of the center of excellence for atomically controlled fabrication processes since 2008. He received PhD in 1991 from Osaka University. His working fields are precision engineering and its application to optics manufacturing, especially for X-ray and high power laser optics. He has been recognized as a fellow of SPIE and OSA, respectively, since 2017 and 2018. In 2023, he was awarded the Medal with Purple Ribbon from Japan.