Thermoplastic Elastomer Part Color as Function of Temperature Histories and Oxygen Atmosphere During Selective Laser Sintering
| Autor: | Stefan Josupeit, Christina Kummert, Hans-Joachim Schmid |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Work (thermodynamics) Materials science General Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Temperature measurement Oxygen atmosphere law.invention Atmosphere Selective laser sintering 020901 industrial engineering & automation law Residual oxygen General Materials Science Composite material Thermoplastic elastomer 0210 nano-technology |
| Zdroj: | JOM. 70:425-430 |
| ISSN: | 1543-1851 1047-4838 |
| DOI: | 10.1007/s11837-017-2658-2 |
| Popis: | The influence of selective laser sintering (SLS) parameters on PA12 part properties is well known, but research on other materials is rare. One alternative material is a thermoplastic elastomer (TPE) called PrimePart ST that is more elastic and shows a distinct SLS processing behavior. It undergoes a three-dimensional temperature distribution during the SLS process within the TPE part cake. To examine this further, a temperature measurement system that allows temperature measurements inside the part cake is applied to TPE in the present work. Position-dependent temperature histories are directly correlated with the color and mechanical properties of built parts and are in very good agreement with artificial heat treatment in a furnace. Furthermore, it is clearly shown that the yellowish discoloration of parts in different intensities is not only temperature dependent but also influenced by the residual oxygen content in the process atmosphere. Nevertheless, the discoloration has no influence on the mechanical part properties. |
| Databáze: | OpenAIRE |
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