A macroscale FEM-based approach for selective laser sintering of thermoplastics

Gianluca Buffa, Livan Fratini, Chunze Yan, Wei Zhu, Song Bo

Risultato della ricerca: Article

9 Citazioni (Scopus)

Abstract

A numerical approach to model the selective laser sintering (SLS) of polypropylene is proposed. A 3D thermal model was developed and thus enables the prediction of the temperature fields and the extension of the sintered area in the powder bed taking into account the phase change during multiple laser passes. Powderâliquid, liquidâsolid and solidâliquid phase changes were modelled during the SLS and the subsequent cooling processes. Then, a 3D thermomechanically coupled model was set up based on the temperature results of the thermal model in order to predict the distortion of the produced parts after cooling down. Different pre-heating temperatures were considered, highlighting their influence on the final part properties.
Lingua originaleEnglish
pagine (da-a)3169-3180
Numero di pagine12
RivistaINTERNATIONAL JOURNAL, ADVANCED MANUFACTURING TECHNOLOGY
Volume91
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Software
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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