A Method to Characterize the Quality of a Polymer Laser Sintering Process | Zendy

Rüsenberg Stefan | Zendy; Josupeit Stefan | Zendy; Schmid Hans-Joachim | Zendy

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A Method to Characterize the Quality of a Polymer Laser Sintering Process

Author(s) -

Rüsenberg Stefan,

Josupeit Stefan,

Schmid Hans-Joachim

Publication year - 2014

Publication title -

advances in mechanical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 40

ISSN - 1687-8132

DOI - 10.1155/2014/185374

Subject(s) - materials science , selective laser sintering , reliability (semiconductor) , polymer , sintering , standardization , layer (electronics) , process (computing) , work (physics) , composite material , quality (philosophy) , reproducibility , laser , thermal , mechanical engineering , process engineering , computer science , optics , power (physics) , philosophy , physics , statistics , mathematics , epistemology , quantum mechanics , engineering , operating system , meteorology

The reproducibility and reliability of quality aspects are an important challenge of the polymer laser sintering process. However, existing quality concepts and standardization activities considering influencing factors along the whole process chain have not been validated experimentally yet. In this work, these factors are analyzed and kept constant to obtain a reliable material data set for different layer thicknesses and testing temperatures. In addition, material qualities regarding powder ageing effects are analyzed using different build heights and layer thicknesses: while an increase of the layer thickness reduces mechanical part strength and density, it also results in a less intense thermal ageing of unmolten powder due to shorter build times.

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