TRUMPF's TruDisk CavityClick image to enlarge

TRUMPF has launched its  latest generation TruDisk lasers, a solid state laser designed for today's smart systems with Industry 4.0 enabling tools. The new laser disks premiered at the Laser-World Photonics trade fair in Shanghai.

This new generation of disk lasers boasts built-in intelligence, offering optimum hardware features for a digitalized future and Industry 4.0. The ability to carry out condition and trend analyses – also known as condition monitoring and predictive maintenance – is a basic prerequisite for successfully implementing lasers in digitalized and connected manufacturing environments.

The technology used in a TRUMPF TruDisk disk laser is designed to withstand laser radiation reflected from the workpiece, making it an outstandingly robust choice.Click image to enlarge

“The new TruDisk is not just the smartest, most advanced generation of disk lasers we’ve ever developed, it’s also the most compact and energy efficient,” says Klaus Löffler, managing director and head of sales at TRUMPF Lasertechnik GmbH. “Combined with our Condition Based Services for condition and trend analyses, the new TruDisk lasers are the perfect production tool for superior Industry 4.0 production lines.” Condition Based Services are a modular component of TruConnect, the TRUMPF technology for connected manufacturing and Industry 4.0. They increase the availability and productivity of connected laser systems while identifying potential cost savings.

All-new control system, diodes, and cooling technology

The critical hub of the smart TruDisk beam source is the built-in control system known as CPX. This is the laser’s brain, where all the condition data and process parameters are collected. During processing, a broad array of sensors measure multiple parameters, including the actual laser output at microsecond intervals, all internal and external signal characteristics, the utilization rate of the beam source, and the condition of additional components.

The new generation of TruDisk lasers also incorporates a clever new feature that significantly enhances the quality of the data obtained from the readings. Known as Precision Time Protocol, this feature synchronizes all the sensors and provides them with an identical time stamp. But perhaps the most impressive development of all is how TRUMPF is planning to use Condition Based Services in the future.

With the customer’s prior approval, the services will be used to analyze data parameters, carry out algorithm-based trend analyses, and take targeted measures to determine the risk of potential laser failure in advance and prevent unscheduled downtime.

The second major improvement inside the new-generation TruDisk lasers can be found in the new laser diodes, which TRUMPF develops and produces at its US plant in Princeton, NJ. The new laser diodes are both compact and energy efficient. That keeps running costs down while also reducing the laser’s footprint, which–at just 0.85 sq m–is currently the benchmark for multi-kilowatt high power lasers, says TRUMPF. There is even room in this small space for the laser’s smart cooling system, which enables the use of cooling water at feed temperatures of up to 26 degrees Celsius. This eliminates the need for an external cooling unit in the majority of cases.

To boost the energy efficiency of the new TruDisk lasers, TRUMPF has not only increased how efficiently the lasers work, it has also equipped them with a new pulse function. This makes it possible to ramp the current of the pump diodes down to zero amps even during very short laser-off times between two processing steps.

The new generation of lasers comes with a smart energy management system that switches the laser between different power-saving modes for each operation, reducing energy consumption to a minimum. The disk laser’s optics have also been redesigned to ensure optimum use of the diode pump light.

The new generation of TruDisk lasers is available for laser outputs of between three and five kilowatts with fiber core diameters between 100 and 600 micrometers. Further models are due to be released this year.

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