Process behavior of short glass fiber filled systems during powder bed fusion and its effect on part dimensions

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Abstract

In powder bed fusion of polymers, filled systems can provide a wide range of part properties, which is still a deficit in additive manufacturing, as the material variety is limited. Glass fiber filled polymers provide a higher strength and stiffness in parts; nevertheless, the process behavior differs from neat polymer systems. In this study, the optical properties and their effect on the part dimensions are analyzed. A higher glass fiber content leads to an increased absorption of laser energy, while the specific heat capacity decreases. This results in larger part dimensions due to higher energy input into the powder bed. The aim of the study is to gain process understanding in terms of ongoing mechanisms during processing filled systems on the one hand and to derive strategies for filled polymer systems in powder bed fusion on the other hand.

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APA

Lanzl, L., & Drummer, D. (2021). Process behavior of short glass fiber filled systems during powder bed fusion and its effect on part dimensions. Polymers, 13(18). https://doi.org/10.3390/polym13183144

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