Influence of Build Height on Quality of Additively Manufactured Thermoplastic Polyurethane Parts

authored by: Sudhanshu Gangwar, Prateek Saxena, Tobias Biermann, Carl Steinnagel, Roland Lachmayer
Abstract: Due to geometrical degrees of freedom, low cost, and ease of realizing complex structures, polymer additive manufacturing (AM) has emerged exceptionally well. Even with rapid evolutionary growth, AM lacks sound quality mainly including inherent porosity and surface roughness compared to their counterparts (conventional manufacturing processes) due to the involvement of several printing parameters in AM processes. This quality-based comparative assessment presents the influence of build/layer height on the porosity (using micro-X-ray computed tomography) and surface roughness (in build direction) of additively manufactured thermoplastic polyurethane (due to its versatile properties in applications like wearable electronics and biomedical) using three different polymer AM processes namely selective laser sintering, fused deposition modeling, and stereolithography. Along with porosity, an in-depth pore characterization is also performed to understand the geometrical feature and severity of pores present in each sample of the AM process. Results are compared finally to make concluding remarks.
Organisation(s): Institute of Motion Engineering and Mechanism Design
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
External Organisation(s): Indian Institute of Technology Mandi (IITMandi)
Type: Article
Journal: Advanced engineering materials
Volume: 26
No. of pages: 10
ISSN: 1438-1656
Publication date: 19.06.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Condensed Matter Physics
Electronic version(s): https://doi.org/10.1002/adem.202400293 (Access: Closed)

BibTeX

@article{99ca22ed0af7485da7130509d2a8aded,
title = "Influence of Build Height on Quality of Additively Manufactured Thermoplastic Polyurethane Parts",
abstract = "Due to geometrical degrees of freedom, low cost, and ease of realizing complex structures, polymer additive manufacturing (AM) has emerged exceptionally well. Even with rapid evolutionary growth, AM lacks sound quality mainly including inherent porosity and surface roughness compared to their counterparts (conventional manufacturing processes) due to the involvement of several printing parameters in AM processes. This quality-based comparative assessment presents the influence of build/layer height on the porosity (using micro-X-ray computed tomography) and surface roughness (in build direction) of additively manufactured thermoplastic polyurethane (due to its versatile properties in applications like wearable electronics and biomedical) using three different polymer AM processes namely selective laser sintering, fused deposition modeling, and stereolithography. Along with porosity, an in-depth pore characterization is also performed to understand the geometrical feature and severity of pores present in each sample of the AM process. Results are compared finally to make concluding remarks.",
keywords = "additive manufacturing, porosity, roughness, thermoplastic polyurethane, X-ray computed tomography",
author = "Sudhanshu Gangwar and Prateek Saxena and Tobias Biermann and Carl Steinnagel and Roland Lachmayer",
note = "Publisher Copyright: {\textcopyright} 2024 Wiley-VCH GmbH.",
year = "2024",
month = jun,
day = "19",
doi = "10.1002/adem.202400293",
language = "English",
volume = "26",
journal = "Advanced engineering materials",
issn = "1438-1656",
publisher = "Wiley-VCH Verlag",
number = "12",
}