It’s all about the finishing touches, in the truest sense of the word, for the third time at the Fraunhofer Institute for Laser Technology ILT in Aachen on the 12th and 13th of September 2018. After the first two successful conferences on laser polishing, the institute expects more than 70 participants from industry and research to attend the third “Conference on Laser Polishing – LaP”.
Laser polishing is a relatively new process that has only been used for selected fields of applications in the industry: for example, machining metals for toolmaking and automotive engineering, as well as processing glass optics.
Prior to 2014, the pioneers of this process did not have the opportunity to exchange research results in a wider and international context. That is why Fraunhofer ILT launched the first “Conference on Laser Polishing – LaP” in 2014, which has been held every two years since then and has become the international meeting place for laser polishing experts.
“If you look at the specialist literature, more than 80% of the research groups working on the topic worldwide have attended the LaP conference so far,” states Dr. Edgar Willenborg, Head of the Laser Polishing Group at Fraunhofer ILT.
“Researchers from all over the world – from China, Russia, Canada, many European countries and the USA – have come to the conference. That's why English is the conference language, also at the third LaP”. While the majority of the 20 lectures come from academia, the participants come roughly equally from industry and research.
Focus on technical surface properties
“Researchers are concentrating more and more on the properties of surfaces relevant to specific applications,” says the expert. “In the beginning, it was primarily about lowering the roughness, but now more and more functional tests and application tests are being added”.
For example, users would like to eliminate microdefects to increase the lifetime of a metallic component, or to polish particularly complex optical glass surfaces. One of the new applications, covered for the first time at LaP, is the laser polishing of additively manufactured components made of plastic.
Many speakers have one goal in common: to create a broad, scientific basis for the industrial use of laser polishing. Willenborg: “With hand polishing, it is possible to achieve a lower roughness on metallic components, but it is much slower than laser polishing”.
With the laser, on the other hand, complex geometries can be polished automatically, reproducibly and significantly faster. While the quality of laser polishing for many applications is already sufficient, the processing speed must be increased even more. “Accelerating laser polishing is currently an important trend, as it makes the process economical for a wide range of applications,” says Willenborg.
Dr.-Ing. Edgar Willenborg
Group Manager Polishing
Telephone +49 241 8906-213
Petra Nolis M.A. | Fraunhofer-Institut für Lasertechnik ILT
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