LASYS: LASERS IN ACTION
Thursday 2 June 09.15-09.30
Introduction from the Laser Institute of America
09.30-10.00
Inline laser welding process quality assessment using on-axis high-speed infrared cameras
Rodrigo Linares, New Infrared Technologies
developed and delivered numerous laser welding machines for automotive seating and body applications, as well as the general industry. Tis presentation will cover practical industrial
topics from AWL’s experience in laser welding. Examples include the new AWL air management system for higher productivity, weld quality monitoring approaches and advanced robot technology for accurate laser welding. Research results and practical examples from AWL’s experiences will be shared. Tis presentation will be valuable to all who use laser welding in their production processes.
www.awl.nl
16.00-16.30
Industrial femtosecond lasers for micromachining applications with highest quality and efficiency
Dr Victor Matylitsky, Spectra-Physics
Femtosecond laser systems have proven their potential in many material processing applications. Te advantages of femtosecond lasers – high ablation efficiency and accuracy of ablated structures on metal, as well as on dielectric targets – have been demonstrated in many studies. Te industrial femtosecond Spirit HE laser
system from Spectra-Physics has a pulse duration of 400fs, pulse energies of 120µJ, and average output powers of 16W. Tis makes it an ideal tool for industrial micromachining with a wide range of materials. Te laser offers process flexibility with programmable pulse energy, repetition rate, and pulse width. In this presentation, Matylitsky will give an
overview of the micromachining applications enabled by their newly developed Spirit HE laser. In particular he will present the impact of processing conditions on efficiency and quality when working with bio-absorbable polymers and glass materials.
www.spectra-physics.com
www.lasersystemseurope.com | @lasersystemsmag
Te presentation will review the main features of a system developed for inline quality assessment of laser welding processes in real-time. Te system uses high-speed infrared cameras and image processing analysis to extract the most relevant information from the process, allowing the detection of several defect types in real-time. Defect types include
lack of penetration, pores and underfilling. Tis analysis makes it possible to compile a quality assessment of the process while it’s happening on the production line. Tis is because the sensors are coupled to the welding head (on-axis observation) and the analysis is made in real-time.
www.niteurope.com/i3lasweld/
10.00-10.30
Additive manufacturing by means of laser metal deposition: part production and generation of 3D structures
Dr Antonio Candel-Ruiz, Trumpf Laser- und Systemtechnik
To increase the integration of laser-based additive manufacturing in series production, major challenges related to the production costs and deposition rates still need to be overcome. In
contrast with powder bed technology, laser metal deposition (LMD) makes it possible to generate complete parts and deposit defined 3D structures on existing components. In this way a combination between conventional processing, laser cutting and advanced laser additive manufacturing can be applied to reduce production costs. In industrial applications, 3D geometrical
modifications can be achieved through the integration of appropriate optics and specific sensors, in addition to the production of local reinforcements on conventionally manufactured components.
www.trumpf-laser.com
10.30-11.00
Tailored light – beam sources and system technology for improved processing quality
Michael Grupp, IPG Laser
Recent developments in laser technology have led to further implementation of lasers in material processing applications. Tis is through adapting and optimising laser characteristics to meet the needs of the process. Tese adaptations can either be done by specialised beam sources, or by components such as processing heads and fibres. Tailoring the light by beam shaping allows the user to optimise machining. Te presentation gives an overview on how a laser process can be optimised by new technologies, and shows the advantages of fibre lasers over other technologies.
www.ipgphotonics.com
11.00-11.30
Process control for remote welding of aluminium doors with the WeldMaster
Thorsten Lorenz, Precitec
Numerous trends characterise the use of lasers in automotive engineering. Te application of high-strength steels, weight saving aluminium alloys and innovative joining technologies or uncommon material mixes are all part of making vehicles safer and more energy efficient. Weld monitoring systems play an important role in ensuring both process stability and quality. Te WeldMaster platform features online seam guidance andin-situseam inspection by laser triangulation, all using only one camera.
ISSUE 31 • SUMMER 2016 LASER SYSTEMS EUROPE 29
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