Laserline is the international leading manufacturer of diode lasers for industrial materials processing and sets a new benchmark for high power diode lasers: The modular LDF VG6 series is versatile in use, offers 45 kW laser power in less than one square meter footprint and an electrical efficiency of over 50 percent – even at high beam qualities. Whether power, internal or external cooling system or system interfaces: The LDF series can be individually configured to changing requirements.
The Laserline LDM series includes highly compact beam sources as 19" rack mount modules. This technology offers simplified laser integration in machines or systems. It combines the diode stacks, a fiber-coupling unit, the power supply and integrated cooling as well as control electronics to monitor and control the laser.
With the latest VG7 version, the LDM now delivers enhanced beam quality and laser power of up to 10 kW, once again setting the standard for compact, high-power diode lasers.
The new LDFblue 800-wbc diode laser system, which combines the proven LDF technology with the innovative Blade Engine from WBC Photonics for the first time, offers exceptional beam quality of 4 mm·mrad and is available with output powers of 400 or 800 watts. Thanks to its high brilliance, the system is ideal for spatter-free welding of thin sheets with thicknesses of 100 to 200 µm while maintaining high process stability.
The blue diode laser revolutionizes the processing of copper, gold and its alloys in various ways. The generation of up to 6 kW (cw) laser power in the 445 nm wavelength range is unique for industrial lasers. This wavelength is ideal for the processing of highly reflective materials since its higher absorption allows significantly lower intensities and larger laser spots.
For flexible adaptation to different joining processes, Laserline will present multi-spot optics that enable both beam splitting and individual modulation of spot geometry and intensity. This makes them ideal for demanding welding tasks such as the spatter-free realization of symmetrical and asymmetrical seams with an adapted penetration profile. Laserline will also be presenting special optics for hot wire aluminum welding. This process offers significantly higher process stability compared to conventional methods, reduces heat input into the base material, and enables excellent seam quality at high process speeds.
Heat conduction welding with diode lasers is often used for workpieces with a low material thickness, such as thin sheets, foils, or wires. The laser beam is absorbed by the workpiece surface and the energy required is only led to the workpiece by heat conduction. The smooth, rounded welded seam that is created does not need to be post-processed. This method is suitable for the sheet metal working of materials such as stainless steel, for example, especially for manufacturing products that have to satisfy high requirements in terms of the visual quality of welded seams in the visible field.
One of the most important industrial applications of diode is laser cladding. This established manufacturing process is used to produce and restore high-quality laser coatings and is used in numerous industries, from heavy industry and vehicle production to agriculture. One particular area of application is the energy-efficient and environmentally friendly coating of brake discs. Thanks to the high power class of our diode lasers, significantly shorter process times are possible.
Hardening with diode lasers makes it possible to achieve the maximum hardness for machine components, tools, component parts, and commodities, specific to the material in question. Temperature regulation during the metal hardening process ensures that the optimum process results are reached for each material and application. However, heat treatment can also be used to locally reduce the firmness of high-strength materials to provide better deformability in those local areas.
A major advantage of laser welding aluminum is the calm melt pool, which results in weld seams that are uniformly shaped, clean and smooth. This minimizes contamination caused by unwanted metal splashes on the workpiece surface or the laser optics.
Another benefit is the significantly higher energy efficiency of diode lasers compared to other industrial lasers, making them highly attractive for aluminum welding from both a process technology and economic perspective. In addition to higher efficiency, the shorter wavelength range of diode lasers offers another advantage: it lies closer to aluminum’s absorption maximum. As a result, less laser energy is reflected, and less laser power is required to melt the material.
This powerful hybrid solution for demanding industrial applications is particularly suitable for processes such as cutting, remote welding, cladding, and heat treatment, which require a very small focus and high laser power. With its combination of a high-power diode laser source and two standard beam outputs, the system enables flexible, application-specific switching between a standard process fiber and the APF – without the need for additional laser systems. The APF offers high brilliance at output powers of up to 6,000 W and is available with fiber core diameters of 50 μm and 75 μm. For applications requiring higher power, a 1,000 μm standard fiber is available, enabling output powers of over 20 kW. The hybrid configuration offers a flexible and efficient solution for a wide range of application scenarios – from fine material processing to large-area surface treatment.
For the laser-based welding of tailored blanks, shaped blanks are created from several sub sheets, which will later be transformed into car body parts. However, the process is often affected by inefficient, easily dirtied lasers that also leave unpleasant metal splashes on the sheet and welding optic. Laserline’s laser welding machines generate an extremely calm molten pool that hardly creates any spatter at all. They are also resistant to dust and moisture-intense process environments throughout the entire welding process.
Laserline GmbH, based in Mülheim-Kärlich, was founded in 1997 and is a world leader in the development and manufacture of efficient, modular diode laser systems at blue and infrared wavelengths. Laserline high-power diode lasers achieve output powers of up to 60 kW and a wall-plug efficiency of over 56%. Based on decades of experience, Laserline develops customized laser solutions for industrial applications – including high-quality beam-shaping optics for the realization of variable spot. More than 8,000 high-power diode lasers from Laserline are currently in use around the world, demonstrating their performance in a wide variety of processes and applications. The laser technology has international subsidiaries in the USA, Mexico, Brazil, Japan, China, South Korea and India.
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