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Powder Densification Maps in Selective Laser Sintering
Author(s) -
Bourell D.,
Wohlert M.,
Harlan N.,
Das S.,
Beaman J.
Publication year - 2002
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/1527-2648(20020916)4:9<663::aid-adem663>3.0.co;2-1
Subject(s) - materials science , selective laser sintering , sintering , ceramic , selective laser melting , metal powder , process (computing) , metallurgy , powder metallurgy , laser , process engineering , engineering drawing , composite material , mechanical engineering , metal , computer science , microstructure , optics , engineering , physics , operating system
Selective Laser Sintering (SLS) is a manufacturing process in which a part is produced without the need for part‐specific tooling. It competes effectively with other manufacturing processes when part geometry is complex and the production run is not large. Traditionally, this was limited to prototype production, although tooling applications are now appearing. This paper describes several applications of powder densification maps to advance solutions in direct SLS of metallic and ceramic powders. Time‐dependent plasticity issues arise in pre‐processing of powder to make it suitable for SLS and in post‐processing of SLS parts to obtain desired density.