Seminar on Recent Advances in Laser Development and Research

Date: 28 Jul 2009 - 28 Jul 2009

Venue: Auditorium, Level 3, SIMTech Tower Block, 71 Nanyang Drive, Singapore 638075

Innovative ways in manufacturing are often sought after for long term sustainability. This seminar will feature presentations on recent laser technologies development such as fibre and disk laser.

9.15am  : Registration

9.30 am : Advances of Fibre Lasers by Mr Loh Wai Meng, Sales Manager of IPG Photonics Corporation
Abstract : As companies increase their investment in lasers for material processing, they have the opportunity to benefit from the tremendous advantages that the fibre lasers can offer. This presentation will look at recent developments in fibre lasers.

10.00 am  : Practical Industrial High Power Laser Application and Manufacturing Solution by Mr Francis Lee, Sales Manager of Trumpf Pte Ltd
Abstract:  High-Power Laser Application: With modern demand for better manufacturing processes, the need of innovation is important for any business to sustain long-term growth. This presentation will reflect on fundamental reasons why industry choose high-power disk laser, and it's current practical manufacturing / application process. Some basic practical concept in the selection of CO2 laser, and/or other solid-state laser solution will be discussed.

10.30 am  : Refreshments & Networking

10.50am  : Fibre Laser Welding and Drilling by Prof Lin Li, Director of the Laser Processing Research Centre, The University of Manchester
1.    Continuous wave fibre laser drilling: Until now, laser drilling has been carried out only by pulsed lasers.  A new, continuous wave laser drilling has been investigated at the University of Manchester using a 1 kW single mode fibre laser. Zero-tapered holes with very small recast layer (< 15 m) has been demonstrated for drilling nickel alloys of 2 mm thick with hole diameters less than 300 m.
2.    Hybrid laser/mechanical micro-drilling: Although mechanical tools have been applied for micro-drilling, significant tool wear and breakages have been a barrier to progress for wider industrial applications. A new, hybrid laser/mechanical micro-drilling demonstrated significant reduction and tool wear and improvement in drilling time. Nickel alloys have been successfully drilled using the technique for 0.5 mm diameter holes with no heat affected zones that are often seen in laser drilling.
3.    Net-shape laser welding: laser welding has so far always resulted in geometry changes at the weld zones including weld beads protruding above the workpiece surfaces. By the use of single mode fibre laser welding technique, a net-shape weld has been demonstrated.
4.    Fibre laser welding of dissimilar materials: The work funded by Jaguar-Land Rover has demonstrated a new welding/stitching technique that allows the Zn coated steels to be welded/joined onto Al alloys – a need for next generation light weight vehicles. The challenge has been the avoidance of porosity and cracks due to low vaporisation point of Zn and creation of brittle phases. Porosity-free and crack-free welds have been demonstrated and the shear strength has met the industrial specification.

12.00pm  : Lunch & Networking

1.00 pm : End of Seminar

About the speakers
Mr Loh Wai Meng is the Sales Manager of IPG Photonics Corporation, Singapore Branch. He heads the Sales effort of IPG in S.E. Asia. Based in Singapore, Wai Meng is credited with establishing IPG operation in Singapore.Prior to his current appointment, he was instrumental in spearheading GSI laser business in the Greater China region where under his leadership, GSI has opened several offices across China. He graduated from the Nanyang Technological University with a Degree in Mechanical Engineering and also a Graduate Dip in Marketing (GDM) from the Marketing Institute of Singapore. Wai Meng has over ten years of experience in the laser industry. During his career, Wai Meng has been directly involved in the development of sales and marketing strategies, customer service and after sales support. His experiences include direct sales, sales and service team supervision, OEMs and Integrators management.

Mr Lee Francis has many years of experience in technical advisory and implementation on laser application for vast industry. His past hands-on experience enhances his knowledge in providing practical solution to customers in seeking to solve problems related to laser processing. In his current post, he is responsible for the technical sales in finding the right solution together with customer for the complete laser product ranging from CO2, High-Power CW, and Pulse Welding to Laser-marking of all laser power. In line with TRUMPF's spirit for innovative & continuouss research and development, he has participated in many occasions for transferring the latest technology into the Asia Pacific region. Equipped with his MBA study, practical business model together with technological improve the customer’s value-add in laser application operation.

Professor Lin Li started laser processing research in 1985 at Imperial College. After obtaining a PhD in laser processing, he worked for 6 years in the Laser Group, Liverpool University.  In 1994, he took up a lectureship (assistant professor) at UMIST (now the University of Manchester, after merger in 2004), UK and started setting up laser processing research activity there. In 2000 he was promoted to a full professor and became the Director of Laser Processing Research Centre. Professor Li now heads the manufacturing research group at the University of Manchester. He is the author and co-author of over 400 publications in laser processing including 40 patents. He was awarded Fellow of Institute of Engineering and Technology and Fellow of Laser Institute of America.  He serves on the Editorial board of Optics and Laser Technology and AILU executive committee.  He is the Co-Director of Northwest Laser Engineering Consortium in the UK. He has been appointed SIMTech Visiting Fellow since 2006. His research interests include laser cutting, welding, drilling, surface engineering, micro/nano fabrication and additive manufacturing.

Who Should Attend
Researchers from research institutes, academics, and engineers from precision engineering, aerospace, electronics and medtech cluster.

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

For technical enquiries, please contact Dr Gary Ng, Tel: 6793 8504, Email:

For general enquiries, please contact Samantha Chan, Tel: 6793 8423, Email: