Laser World of Photonics 2019

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24 June 2019 to 27 June 2019
Munich, Germany

Megatrends in Munich

E-mobility and autonomous driving will be hot topics at Laser World of Photonics in Munich, from 24 to 27 June

This year’s Laser World of Photonics will have a particular focus on electro-mobility and autonomous driving, two global megatrends that are expected to grow dramatically over the coming decade.

The laser and imaging technology on show at this year’s exhibition will play a crucial role in breaking into these mass markets, particularly in the efficient mass production of electric vehicles, as well as enabling improved safety via smart sensors. 

More than 33,000 visitors are expected at this year's show in Munich

Market observers anticipate that by 2025, one in every four new cars worldwide will be electric-propelled. And the forecasts for 2030 are for an electro-mobility market share of between 50 and 75 per cent.

Laser technology provides the necessary accuracy and flexibility for the production of electric vehicles, from the welding of hairpins and the cutting of electrical sheets for electric motors, to the welding of connections in battery cells and the joining of dissimilar materials in lightweight vehicle designs.

Application panels

A dedicated application panel: ‘No E-Mobility without Laser Technology’ has been added to the range of presentations this year. The new panel will take place on Tuesday 25 June from 3 to 5.20pm in hall A3, and will be chaired by Dr Hans-Joachim Krauß, of Bayerisches Laserzentrum, Dr Günter Ambrosy, of Trumpf, and Dr Alexander Olowinsky, of the Fraunhofer Institute for Lasertechnology ILT. The pre-existing Lasers in Manufacturing (LiM 2019) section of the Laser World of Photonics Congress – run in parallel with the trade show – will also include presentations on how lasers can be used to facilitate e-mobility. Other laser materials processing application panels also taking place in hall A3, include:

  • Modelling and Simulation of Laser Material Processes (Monday 24 June, 10am to 12.20pm)
  • Perspectives and challenges for applications with Ultrashort Pulsed Lasers (Monday 24 June, 2.40 to 5pm)
  • Smart Production of Metallic Parts by Additive Manufacturing (Wednesday 26 June, 10am to 12.20pm)
  • Machine Intelligence and the Role of Photonics (Wednesday 26 June, 3 to 5.20pm)
  • Lasers in Microelectronics: The Future is digital (Thursday 27 June, 10am to 12.20pm)

Special show: Photonics in Production

Topics including battery manufacturing and laser beam welding with blue light (more on page 24)  – a new trend in laser processing identified to be especially suited to the field of e-mobility – will be showcased at the ‘Photonics in Production’ exhibit in hall A3, at booth 251.

Here, 300m2 of floor space will be dedicated to providing a comprehensive view into current trends and research findings in the field of laser material processing. Two live demonstrations will be given at the exhibit, one on high-efficiency welding with blue light, and the other on measuring welding depths using OCT and machine learning technologies. 

Guided tours

This year the guided tours – introduced in 2017 – will be based on the topics discussed in the applications panels. Trade fair visitors will be accompanied by experts from established research institutions on the selected topics. Tours are approximately two hours long and will begin at the Photonics in Production exhibit. 

The topics of the upcoming tours, which require advanced registration, are: 

  • Inline process monitoring of laser welding processes (Tuesday 25 June, 9.30am)
  • Guidance and shaping of high power laser radiation (Tuesday 25 June, 1.30pm)
  • Current trends in laser drilling (Wednesday 26 June, 10am)
  • Laser beam welding using visible laser radiation (Wednesday 26 June, 2pm)

Encouraging young talent

The trade fair continues to support the relationship between industry and academia, with activities such as the Makeathon, which made its debut in 2017. Around 80 to 100 students – from Germany and abroad – have the chance to demonstrate their photonics expertise by developing innovative solutions using the technology over a 24-hour period. The solutions are then presented.

Katja Stolle, exhibition director for the trade fair, said this event has been moved to a more central location in its exhibition hall this year, further highlighting the event and encouraging more attendees to stop by and learn about the projects undertaken by the students.

The organisers of the trade fair are also encouraging students to visit exhibition booths in greater numbers, with a new ‘QR Rally’, where certain exhibition stands throughout the halls will feature a scannable QR code that students can capture with their smartphones.

The code will then lead them to a set of questions that they can answer and discuss with exhibitors. 

Both the Makeathon and the ever-growing Start-Up Pavilion, which offers discounted exhibitor rates for new companies looking to make their market debut, will be located in hall B2.

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Featured exhibitor: Ophir

Hall A2, Booth 209

Automated Beam Profiling for Manufacturing

Measure critical beam parameters in industrial environments at high power levels with Ophir BeamWatch Integrated. The solution was developed for use in automated production lines and is based on Ophir’s non-contact laser measurement technology. BeamWatch Integrated accurately captures and analyses focal spot data of industrial lasers for wavelengths from 980 to 1,080nm. The system provides real-time measurements of focused laser beams with a power density that is too high for traditional measurement devices. Because there is no contact with the focused beam, there is no wear on the instrument, making it ideal for 24/7 use in production environments. Beam parameters measured include focus spot width and location, focal shift, centroid, M2, divergence, beam parameter product, Rayleigh length, beam tilt angle and absolute power.

  • Real-time measurement
  • Focal shift detection
  • Laser measurement during loading/unloading
  • Power meter with integrated Profinet interfaces
  • Limit values can be set to trigger actions
  • All parameters are analysed and stored

More information: 

www.ophiropt.com/photonics

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Featured exhibitor: 3D-Micromac

Hall A2, Booth 129

Selective Laser Annealing System for Semiconductor, Power Device and MEMS Manufacturing

3D-Micromac will be exhibiting its new microPRO laser annealing system, designed to enable several key process steps in semiconductor, power device and MEMS manufacturing, such as:

  • Ohmic contact formation in silicon carbide (SiC) power devices to improve resistance
  • Giant magneto resistive (GMR) and tunneling magneto resistive (TMR) sensor manufacturing
  • Dopant activation for insulated gate bipolar transistors (IGBTs), as well as activation of backside-illuminated CMOS image sensors.

The system combines a state-of-the-art laser optic module with 3D-Micromac’s modular semiconductor manufacturing platform and provides selective annealing in a versatile system.

The microPRO features a line scan option for vertical selective annealing and a step-and-repeat spot option for horizontal selective annealing, as well as three optional laser wavelengths.

microPRO provides the following benefits:

  • High precision, repeatability and throughput
  • Excellent selectivity to different substrates and films
  • Very high energy homogeneity
  • Precise process monitoring 
  • Multiple options for pulse length, pulse energy and overlap

More information:

www.3d-micromac.com

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Featured exhibitor: Newson

Hall A3, Booth 413

Smart deflectors for adaptable steering

Newson will be showcasing its Smart Deflectors for adaptable steering of the laser beam. The Smart Deflector can be fitted with 10, 15, 20 or 30mm aperture mirrors and offers a fully-integrated rotational servo system. Available angular ranges are 800, 640 and 180mrad.

Other features of the Smart Deflector include: Single coaxial SDP (shared data power) connection; 20 bit set point control; low drift (typical 12μrad per eight hours); low temperature coefficient (typically 25ppm/°K); moving coil drive with low inductance for superior speed; fully digital H-bridge for single supply (12VDC) operation at maximum efficiency; spring preloaded hybrid bearing system for long life time; and field replaceable mirrors and auto tune support.

The firm will also be exhibiting its CUA32 control card, a six-axis numerical control system that can steers up to three Smart Deflectors and up to three stepper drivers.

Features of the CUA32 control card include: full 3D hybrid marking support; control of up to 17 digital and four analogue IO’s; direct AC (110-240 V) or DC (24-48V) power connection; up to eight systems can be interconnected as master/slave; USB and Ethernet for host connection; Ethernet, CAN and UART for system integration; DIN rail mountable; modular internal construction for easy customisation; application interface through G-code or DLL; and configuration software for activation of advanced features.

More information: 

www.newson.be

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Exhibitors: 

Aerotech

Hall A2, Booth 235

Aerotech will be displaying its new high-precision AGV-SPO galvo scanner, together with its IGM positioning system, which it will be showing for the first time.

The AGV-SPO single pivot-point galvanometer scanner provides an alternative to traditional two-mirror galvo scanners. It enables a larger field of view and reduced spot distortion for critical laser micromachining applications.

Combined with Aerotech's Integrated Granite Motion (IGM) positioning system, the AGV-SPO galvo scanner fully demonstrates its strengths.

The IGM positioning tables are much more rigid due to the combination of granite and directly attached axes. The dynamics are removed from the laser and transferred to these axes, increasing scan clock rates and throughput significantly.

In addition, IGM also makes better use of the laser specification. Since the guide rails are screwed directly onto the granite, IGM systems are smaller than conventional positioning solutions, which saves floor space in the laboratory or clean room environment. At the fair, the IGM laser unit will be shown as an encapsulated version, i.e. for applications such as laser cutting, when extremely fine dusts occur. 

Another highlight at the trade fair will be the introduction Aerotech’s new Automation1 Precision Machine and Motion Control Platform. The Automation1 platform combines the control of positioning systems and their components on a platform equipped with a new software-based motion controller. The platform controls drives for servo motors, galvo scan heads, piezoelectric actuators and various other devices. Drives are connected via the HyperWire motion bus, which offers high speed, low jitter and high bandwidth. The Automation1 hardware has built-in digital and analogue I/Os, allowing easy integration of complex motion and the associated control of process tools.

Company: 

Amplitude Laser

Hall B3, Booth 325

Amplitude laser will be showing a live demonstration of a new ultrafast laser which it claims is the most powerful on the market and that can process a wide range of materials.

The firm will also be exhibiting its Tangor UV high-power femtosecond laser, which provides the best balance between cutting quality and throughput. Suited to OLED cutting and drilling applications, this compact and lightweight laser guarantees high processing flexibility, an exceptionally small heat-affected zone, a high yield and a smooth integration for in-line display equipment. It offers an average power up to 30W, high repetition rate up to 2MHz, and high UV pulse energy up to 150µJ.

In addition Amplitude will be informing attendees about its Laser 4.0 Program, a helpful suite of digital services to accompany customers throughout their laser’s life cycle. The service takes advantage of numerous sensors and a state-of-the-art electronic system to perform laser data mining that enables customers to optimise the use of their laser.

Through the Laser 4.0 Program, access is provided to: 

  • ‘4.0 Installation Checkup’ service: guaranteeing that the installed system is matching factory performance
  • 'Health Check’ service: detecting anomalies and acting to avoid unexpected failures
  • ‘4.0 Fast Diagnosis’: in case of an anomaly, reducing downtime thanks to faster and more accurate diagnosis
  • ‘4.0 Remote Maintenance’ service: reducing downtime by repairing remotely (only in applicable cases)
  • ‘4.0 Laser Dashboard’ service: real time dashboard & adjustable smart alerts

AMS Technologies

Hall B2, Booth 203

AMS Technologies will be showcasing the mRC-KIT-900-TWIN, a mini recirculating chiller development kit that can be used to create particularly compact compressor-based water cooling systems. The kit combines two chillers with a total cooling capacity of 900W in a 19-inch case.

With its double chiller concept, mRC-KIT-900-TWIN can cool two heat loads independently of each other – with one chiller, for example, dissipating the heat of a laser pump diode, while the other keeps the laser cavity at the desired temperature. The target temperatures for each of the two heat loads can be set individually for this purpose.

The compressors’ BLDC motors are speed controlled by an inverter, eliminating annoying switching noise of hot gas bypass valves known from ON/OFF compressor systems. Throughout its speed range, the compressor twin pump design offers low vibration and low noise.

With its cooling capacity of 900W the development kit is well suited for high-power industrial lasers for materials processing – for example those used for welding plastics, which feature typical output powers of around 300W. For highly efficient lasers (for example fibre lasers that feature efficiencies exceeding 50 per cent) the kit is also capable of cooling systems with output powers up to around 800W.

For customer requirements that cannot be covered by the mRC-KIT-900-TWIN, AMS Technologies can develop a completely tailor-made solution and offer all services from development through to series production.

Company: 

Applied Laser Engineering

Hall B2, Booth 121

Applied Laser Engineering will be showcasing its range of laser engraving systems capable of producing high-resolution 2D and 3D graphics on the surface of cylindrical and flat substrates, for use in various printing, texturing, security and embossing applications. The range of materials that can be processed by the firm’s systems includes metals, ceramics, rubber and natural and synthetic polymers.

The firm’s range of laser engraving systems are all special-purpose machinery, involving a high precision machine bed integrated with novel mechanisms and optical instrumentation, together with specialised electronic, optical, computerised and laser equipment. Laser type and wavelength are application- or material-specific. Machines range from 0.6 to 7m roller length capability and up to 1m diameter.

Coherent

Hall A3, Booth 315

Visitors to the Coherent exhibit will have the opportunity to see first-hand the impact of the company’s products and technology in several key application areas, including automotive production, ultra-precision manufacturing and medical device manufacturing. 

Lightweight construction and e-mobility are certainly topics in automotive production at the moment. Coherent supports these trends with a number of solutions, including its innovative CleanWeld technology for processing copper hairpins and battery housings, and the zero-gap joining of galvanized steel. The firm will also show smart system solutions for polymer welding and glass cutting intended for the automotive market.

Ultra-precision manufacturing is critical to many emerging market sectors and the next generation of innovation in displays, microelectronics, and even watches and jewellery. Lasers and sub-systems such as Coherent’s PowerLine Series are playing a critical role as they perform applications such as micro-drilling, structuring, fine cutting, precision welding, marking and annealing. In all these applications, precision down to the micrometre is key, as well as minimising heat-affected zone, and delivering high reproducibility and throughput. Coherent’s newest products for many of these applications will be on display.

For medical device manufacturing, Coherent’s will be showing its advanced ExactSeries laser processing systems, which can perform the black marking of stainless-steel implants, and the Coherent Creator, which can 3D print metal medical and dental implants. 

Company: 

Ekspla

Hall B3, Booth 403 

Ekspla will be presenting the FemtoLux green, a compact femtosecond fibre laser aimed for both R&D and industrial applications. 

In applications such as multiphoton polymerization, the writing of fibre Bragg gratings, the volume modification of transparent materials, nonlinear microscopy, silicon and sapphire scribing, and marking, a different wavelength to the fundamental output is needed. The FemtoLux green delivers 1.5W at 515nm or 3W at 1,030nm of average power and up to 3μJ femtosecond pulse energy. Sufficient pulse energy is provided while maintaining beam quality. 

The FemtoLux laser provides perfectly linearly polarized light with a polarisation extinction ratio of > 1000:1. 

This enables second harmonic generation with better than 50 per cent efficiency as well as excellent spatial beam and temporal pulse parameters. 

The laser’s fibre-based frontend allows multiple pulse train control functions such as: a wide range of operating pulse repetition rates, individual pulse gating up to 10MHz, burst mode with active burst envelope shaping, real time pulse amplitude control. Pulse duration can also be automatically tuned from 300 fs up to 5 ps. 

Providing more than 3W at 1,030 nm, the FemtoLux green’s reasonably high wall plug efficiency as well as smart heat management enables the laser head to be passively cooled with only ~60 W of heat dissipation when operating at full power.

Company: 

Excelitas Technologies

Hall B1, Booth 103

Excelitas Technologies will showcase its motorised Linos Beam Expander 1x-4x for 515nm-540nm or 1,030nm-1,080nm wavelength ranges. The sophisticated, motorised variable beam expander enables adaption of the focus diameter, focal position and spot quality. Its motorisation contributes to considerably reduced set-up times and higher repetition accuracy for a wide variety of laser material processing, display, semi, micro machining, solar and battery applications.

Fraunhofer ILT

Hall A2, Booth 431

In keeping with the theme of this year’s trade fair ‘No e-mobility without laser technology’, the Fraunhofer Institute for Laser Technology ILT will be using Laser-Based Tape-Automated Bonding (LaserTAB) to demonstrate how even the most diverse battery cells and power electronics can be combined quickly, reliably and efficiently using robot-assisted laser micro welding. 

Visitors to the joint Fraunhofer booth can admire the electric racing car ‘eace05’ of the Ecurie Aix-Formula Student Team from RWTH Aachen – an excellent example of the use of laser technology in e-mobility, containing laser-welded batteries, as well as laser-cut CFK-components.

Visitors also can learn more about the results of the collaborative research project eVerest (more on page 6), in which a laser machine has been developed that triples the rate at which tools can be made for embossing plastic panels for vehicle interiors – a process that has previously been very time consuming. The project will also be presented as part of an application panel on the automation of laser applications, from 3 to 5.20pm on 26 June at the Laser Materials Processing forum in hall A3, booth 545.

Company: 

GFH

Hall A2, Booth 552

GFH will be presenting its GL.compact II laser micro machining system for the first time. 

The GL.compact II is a flexible laser machining station that delivers high movement accuracy, 5-axis simultaneous machining, and an automation function for series production. These features are provided in an compact (2,100mm x 1,600mm) design that offers universal installation opportunities.

The machine is versatile in application and covers the entire laser machining spectrum – from micro-drilling to precision blanking and milling to laser turning. It consistently guarantees high machining precision thanks to high-precision guides which ensure a high repeat accuracy of 1µm in the x, y and z-axes.

Fixed or scanner optics compatible with all commercially available ultrashort pulse laser sources may be installed through the selection of optional modules. Depending on the chosen optics and mounting, the machining station can process components with a length up to 200mm in 5 axes. The optional automation function via a robot access door or quick-change component system makes it possible to swap components in seconds.

Company: 

InnoLas Solutions

Hall A3, Booth 432

Micromaterial processing expert InnoLas Solutions will present its Expego Series, a new concept in 2D applications, such as ablating, cutting or drilling operations for sub-straight sizes up to 750mm x 750mm.

The Expego can be equipped with as many as three different types of lasers and can be operated with both a fixed optic and/or with a galvanometer scanner.

In conjunction with its galvanometer scanner, InnoLas Solutions will also be presenting its new Infinity Scan function, which virtually eliminates relative inaccuracy when scanning sequential fields.

Machines equipped with the Infinity function can have the galvanometer scanner and the machining table running in parallel, thus achieving superior accuracy. Results of 5μm even on oversized substrates are common. The overall performance is further enhanced by the elimination of the ‘stitching function’ as the Expego can now additionally process with a dramatic increase in speed, resulting in typical gains of 40 per cent.

Jenoptik

Hall A3, Booth 320

Jenoptik will be presenting its quick-integration optical system platform for manufacturers of laser production systems for micromaterials processing. The vision-enhanced laser tool enables users to implement a wide range of requirements for optical assemblies in less time and at competitive prices. 

The compact plug-and-play system is easy to integrate and caters for various process-related requirements in laser production. The system comprises a 2D galvo scanner, an F-theta lens, and a camera with integrated image processing and intelligent software. System integrators benefit from shorter development times and a smart software solution, which enables users to get up and running quickly. 

The centerpiece of the system is the ‘all-in-one’ software, which combines scanner and laser control and image recognition with artificial intelligence. The software maps production projects, and monitors the ongoing process while ensuring that the data obtained is evaluated and fed back into the control system. 

From Q4 2019, Jenoptik will be offering two different versions of the vision-enhanced laser tool: a cost-efficient eco variant and a high-performance variant, targeted at speed and accuracy. Test installations and tailored application advice are available to help users determine the suitable hardware and the relevant optical system can be determined. Customers also benefit from high-quality coated lenses, calibrated hardware and prefabricated software modules relevant to the respective application.

Company: 

Laser Components

Hall B3, Booth 303

Laser Components will be exhibiting high-quality beam shaping and beam splitting diffractive optical elements (DOEs) from Holo/OR, made from fused-silica quartz glass for laser materials processing applications at powers up to several kilowatts. The full product range includes optics for wavelengths from 266 to 2,200nm. The customer may choose from numerous different beam shapes. Special requirements such as particularly high beam homogeneity or additional AR coatings are taken into account during development and production.

Laserline

Hall A3, Booth 303 

Laserline, a developer and manufacturer of diode lasers for industrial material processing, will present further developments of its LDF and LDM laser systems. 

The highlight of the exhibition presentation is the LDMblue 1000-100 – the world’s first blue diode laser with 1kW CW output power. It works with a wavelength of 450nm and is designed as a compact 19-inch rack mount module. The LDMblue is suited to performing controlled heat conduction welding of non-ferrous metals, such as copper or gold. 

Furthermore, with the optics of its new OTC series, Laserline is able to offer processing optics for welding and cladding applications. These affordable optics are available in five standardised versions and are optimally suitable for robotic applications, due to their compact design and low weight.

Company: 

Laser Zentrum Hannover

Hall A3, Stand 206

The research centre will show how, in the future, unexploded bombs can be defused more safely with a 3D-printed laser processing head with standard optical components. In addition, an internal laser processing head, the LZH-IBK, will be presented. This head makes it possible to roughen internal cylindrical surfaces like those in an engine block. Lastly, a mobile, hand-held laser processing head will also be shown that is designed to help emergency teams in traffic accidents to easily and safely cut vehicles. In that way, a quick rescue of injured persons shall be ensured in the future.

For the search for life on Mars, the LZH has developed a laser for the Mars Organic Molecule Analyzer (MOMA) instrument. This laser will be part of the ExoMars 2020 mission. The LZH will present the flight model of the MOMA laser.

In addition, the scientists will demonstrate high-power single-frequency fibre amplifier systems for the next generation of gravitational wave detection. Likewise, these systems shall be used in optical communication (optical radio relay) and in quantum technologies.

The LZH scientists will also be presenting new coating concepts for frequency conversion. These are more efficient, more compact and more stable than conversion crystals and could replace them in the future. Furthermore, concepts for loss-free, ultra-fast optical switches will be presented that are suitable for high-power lasers. These components convey the laser power in a loss-free way and will allow significantly more powerful ultra-short pulse lasers already in the oscillator stage.

In addition, the research centre will show concepts for weed control with the laser.

Company: 

MKS Instruments

Hall A2, Booth 209

MKS Instruments will present its Surround the Workpiece concept. The interactive presentation at the MKS stand bundles the wide variety of products and services in the MKS Instruments Light & Motion division with its brands Spectra-Physics, Ophir and Newport.

Spectra-Physics combines laser technologies with deep application expertise to deliver lasers for precision industrial and scientific research applications. Ophir specialises in laser and LED measurement, including laser power and energy meters and laser beam profilers. Ophir also provides high-performance IR thermal imaging lenses and optical elements, as well as optics for CO2 and high-power fibre laser material processing. Newport offers solutions including motion control, optical tables and vibration isolation systems, photonic instruments, optical and opto-mechanical components. 

The Surround the Workpiece concept includes product design and development, system-level integration, research and development, component selection and maintenance, repair and calibration services in the field of laser-based guidance and control for manufacturing processes. 

Company: 

Nuburu

Hall B3, Booth 103

Nuburu will be presenting its high-brightness 500W blue (450nm) diode laser, the AO-500, which offers deeper penetration depth in materials processing applications involving gold, aluminium, and copper, among other metals. The blue light is absorbed much more by these reflective materials than the infrared wavelengths of conventional industrial lasers. 

The efficiency and quality of materials processing applications are driven by power density. Increasing power density by a factor of four increases weld depth more than one-and-a-half times and increases the weld speed three to four times.

The AO-500 has an innovative design that individually aligns each of the output beams from sixteen multi-diode packaged chips, offering a high brightness. Early adopters are already leveraging the advantages of the high power and brightness in applications such as battery fabrication, automotive component production, e-mobility device fabrication, and electronic packaging. 

Company: 

OPI Photonics

Hall A3, Booth 217

OPI Photonics, an Italian innovative SME based in Torino, will be showcasing its line of beam switches and couplers for fibre lasers up to 10kW. These devices are essential in complex production lines, either for sharing the same fibre laser resource among different workstations (laser switches for time or power sharing) or to keep the process cable separated from the laser feeding fibre (laser couplers). 

Fibre laser manufacturers can integrate couplers and switches inside their sources as a value-added option; system integrators can find the right input-output fibre combination yielding the most effective solution for their production line. Both devices are fully customisable and OPI can provide its expertise to identify the best solution. The equipment is PL-e certified.

Company: 

PicoQuant

Hall B2, Booth 216

PicoQuant will be presenting the latest additions to its photonics portfolio, the main highlight being the new Taiko PDL M1, a smart picosecond pulsed laser driver that can be used in combination with the laser heads of the firm’s LDH series.

The Taiko PDL M1 grants the user full operational control over picosecond pulsed laser heads. It enables the reading out and adjustment of many parameters on the fly, either through a local one-button interface, or remotely via a PC. These parameters include repetition rate, operation temperature, or even fully calibrated and linearised optical output power.

Company: 

Raylase

Hall A3, Booth 306

Raylase will present its latest products and solutions that can be implemented, for example, in the solar industry, additive manufacturing or the e-mobility market. The firm is also celebrating its 20th anniversary this year. 

One of the highlights of the exhibit will be the firm’s High Power Welding Module that offers wavelengths between 420-480nm. In the e-mobility market, two dissimilar materials are used for through-plate connection of the cell connectors of the battery pouch cells in lithium batteries. Welding ensures that both a robust mechanical connection and a very good electrical connection are created. 

The absorption of the copper contact strips is significantly higher for the 420-480nm wavelength range than for the infrared wavelengths, which means that the energy can be delivered into the material using just a fraction of the laser power. This results in a homogeneous weld bead that penetrates the copper and bonds the aluminium – significantly improving the quality of the entire welding process. 

Another highlight will be the deflection units Axialscan Fiber-20 for additive manufacturing applications and the Axialscan Fiber-30 for additive manufacturing and welding applications in the e-mobility market. These deflection units are being unveiled at the show and are designed to boost the productivity of AM powder bed machines and systems for welding batteries and fuel cells. The units are optimised for easy integration and reliable operation, in particular in powder bed machines. Process monitoring is also integrated, so that the quality of the AM process can be checked at any time.

Company: 

Scanlab

Hall A2, Booth 225

Scanlab will be highlighting its new encoder-based scan system ExcelliSCAN 20 at the show, which through smaller spots and large image fields enables the smallest patterns in micro structuring to be made using lasers. The scan system offers an increased working distance, allowing for more flexibility in high-power laser applications. Its intelligent SCANahead control dynamics increase productivity – particularly in 3D printing.

The firm will also be presenting a new member of its precSYS product line. Five-axis precSYS subsystems enable industrial ultra-short-pulse (USP) laser micromachining of flexible, definable geometries with high aspect ratios. The availability of a subsystem optimised for 515nm lasers is particularly attractive in the electronics industry, where it allows probe cards for testing integrated circuits to be created with even finer lateral structures. 

All precSYS scan solutions are galvo-based five-axis subsystems for integration into laser machines. Thanks to their flexible laser beam positioning capabilities (in the x, y, z, α and β directions), these scan heads offer a high level of freedom in developing new process strategies. Circular, elliptical or linear trajectories can be defined for processing in 2D or 3D.

Lastly, the firm will be also be showcasing its XL Scan solutionfor the first time with an integrated excelliSHIFT z axis. Jointly developed with ACS Motion Control, this innovative scan system processes workpieces of practically unlimited size by combining a 2D scan head with an XY positioning stage. What’s new is the added ultra-dynamic z-shifter, which enables highly precise surface processing of 3D-shaped workpieces in nearly any size.

Company: 

Scansonic

Hall A3, Booth 307

Scansonic will be introducing its new RLW-S laser optics The technology was specially developed for the complexities of welding the copper hairpins used in electric motors.

RLW-S offers a number of key advantages. The system uses laser scanners to precisely guide the laser beam to within a tenth of a millimetre. This is made possible by an integrated camera that accurately detects the processing point and enables the welding to be completed according to a predetermined pattern. The camera also ensures continuous process monitoring and high process reliability. This gives customers maximum dependability with strong, pore-free seams at high reproduction rates. Existing laser beam sources can be fully integrated into the processing strategy.

Scansonic will be showcasing the new RLW-S along with other laser welding and brazing optics, process monitoring solutions, and sensors – including the ALO4, the next-generation ALO processing optics for tactile seam tracking in body construction.

Company: 

Sisma

Hall A3, Booth 411

Sisma will be showcasing its Power Ramp software function, developed to optimise laser welding processes, specifically at two critical points – the start and end of the welding process.

Power Ramp operates at the start of the welding process by reducing the power supplied by the laser beam and gradually increasing it until the selected nominal value is reached. In the final phase of the welding process, Power Ramp operates inversely, reducing the nominal power delivered by the laser beam to obtain a gradual shutdown. 

By modulating the power delivered by the laser beam in the initial and final phases of a welding process, Power Ramp is able to avoid the onset of porosity and cracks, marginal incisions – surface depressions that can be generated at the end of the weld bead – as well as prevent the formation of any other aesthetic and functional defects. 

In addition to Power Ramp, Sisma will also be showcasing its MYSINT 100 metal 3D printer, and multiple vision systems for process monitoring at its booth.

Company: 

SPI Lasers

Hall A3 Stand 310 

SPI Lasers will be showcasing its redPOWER QUBE 20kW CW fibre laser, the firm’s most powerful fibre laser to date, capable of cutting and welding thick metals with precision and speed. 

Also new for 2019, SPI Lasers‘ redENERGY G4 250W fibre laser features a pulse energy of >1.5mJ and a peak power of >10kW, making it ideal for high speed welding (even of dissimilar metals), cleaning and battery foil cutting. 

Experts will be on hand to discuss the firm’s patented nanosecond welding process (capable of welding the majority of metals or combination of metals) and variMODE, which offers the versatility of two lasers from one source.

Company: 

TBH

Hall A3, Booth 400

TBH will be exhibiting its energy-saving, low-maintenance, extraction systems for protecting employees and machines from even the smallest particles of laser fumes. The systems feature a noise-reducing engine and powerful control electronics, as well as offer a high filter quality that enables them to operate even in closed systems. 

In addition to improving air quality and promoting employees’ health, the extraction systems improve the cleanliness of laser processing, helping improve cut quality and the precision of machining. The modular design of TBH’s extraction systems enables them to be adapted to different laser processes.

Company: 

ULT

Hall A3, Booth 118

Extraction and filtration firm ULT will be introducing its new digital customer service FireCS, which provides access to fume extraction units via LAN/WLAN through a special webserver. This will allow customers to read out device data, filter saturation, performance data, or the next maintenance date. A specifically designed online portal will enable users to easily access device information, exchange system data with ULT, or even order replacement filters for dedicated units.

Furthermore, it is planned that laser processing systems will be able to control and communicate with fume extraction devices in the near future.

ULT experts will also be on hand to provide information on how to guarantee safety for employees, manufacturing plants, product quality and complete processes.

ULT offers a range of both turnkey and customer specific systems to remove hazardous airborne pollutants from laser smoke or laser dust. In addition, the firm has a wide portfolio of extraction and filtration solutions for additive manufacturing, for air and gas cleaning, as well as post-processing issues.

Company: 

4JET microtech

Hall A3, Booth 419

Laser glass processing specialist 4JET microtech will present its new micromachining solutions for thin-film patterning and the separation of very large and curved glass sheets for various application areas.

The firm’s new 3D XL patterning solution enables the removal of thin-film coatings such as TCO or low-E coatings on large curved glass sheets, such as windshields or other transportation glass substrates. The system is able to cover a 3D processing volume of 1,000 x 1,000 x 300mm³ and can create tracks at a resolution down to 100µm as needed.

4JET’s 2D XL platform for switchable glass applications (smart windows), provides high-speed, resolution and accuracy at the same time. The scribing of functional thin-film coatings on flat glass substrates with a size of around 2 x 3m² is possible. Scribe resolution goes down to 10µm track width making the features invisible to the eye. Furthermore, 4JET´s high-speed patterning feature, in combination with multiple parallel scan heads provides an exceptional cycle time, making the platform a very cost-effective tool for manufacturing innovative architectural glass products.

4JET’s PearlCut capability refers to the kerf-less separation of glass substrates providing a 90° edge angle, high dimensional accuracy, no chipping and virtually free-form cutting shape capability. The firms Twin XL system transforms this capability to large substrates of up to 3m length. This 24/7 production tool aims at manufacturers of displays, smart windows and other functionally coated glass parts.

Company: 
Messe Munich
Company: 

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