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TWI Industrial Member Report 1174-2023 [pdf / 2080 KB]
By Andy Wilson and Christian Stadter
With the latest developments in the field of ultrashort pulse laser technology, high-energy pulses with remarkably high repetition rates are becoming readily available. Thus, new applications such as low surface energy or repellent surfaces, anti-icing surfaces, and surface preparation and cleaning prior to subsequent materials processing are emerging, as large surface areas can be processed efficiently. Key industrial sectors that this can apply to range from aerospace to automotive, consumer goods, spectroscopic equipment and medical. Although the basic mechanisms of the interaction of ultrashort pulses with matter have been researched for decades, of transfer of this knowledge to real world applications remains limited. For that reason, this work aimed to identify parameters and effects that dominate the process output of an ultrashort pulsed laser. Stainless steel 316 (SS 316L) and Ti‑6Al‑4V titanium alloy were identified as key materials with a view to future applications.
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