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17 March 2023 Laser-based additive manufacturing of high-performance polymers
Wolfgang Steiger, Christian Frank, Christian Gorsche, Thomas Förster-Romswinckel, Bernhard Busetti, Raphael Krobath, Robert Gmeiner
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Proceedings Volume PC12412, Laser 3D Manufacturing X; PC124120O (2023) https://doi.org/10.1117/12.2650190
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
For additive manufacturing, scanning systems based on diode lasers offer unique advantages over conventionally used solid state lasers. Their fast modulation and high beam quality allow the production of precise polymer parts. However, the material portfolio which conventionally can be used on such stereolithography (SLA) systems is limited to resins which can be processed at room temperature. By controlled heating of a thinly coated material film (Hot Lithography), the available process window is significantly expanded. We present photopolymers with safe fire behavior of walls as thin as 0.45 mm. Using the precision of diode lasers without sacrificing fabrication speed, these materials are particularly suitable for the production of connectors for electronics industry.
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Wolfgang Steiger, Christian Frank, Christian Gorsche, Thomas Förster-Romswinckel, Bernhard Busetti, Raphael Krobath, and Robert Gmeiner "Laser-based additive manufacturing of high-performance polymers", Proc. SPIE PC12412, Laser 3D Manufacturing X, PC124120O (17 March 2023); https://doi.org/10.1117/12.2650190
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KEYWORDS
Additive manufacturing
Polymers
Laser manufacturing
Semiconductor lasers
Electronics
Lithography
Modulation
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