SLS Powder Life Study

Date

2001

Authors

Choren, J.
Gervasi, V.
Herman, T.
Kamara, S.
Mitchell, J.

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Producing acceptable models on the Selective Laser Sintering (SLS) machine involves adjusting machine parameters relative to powder age. Typically, a fraction of the powder is used and the remainder of the unused powder is recycled. After 5-7 recycles, this method leads to a powder inventory with inconsistent characteristics. The goal of this study was to apply a new recycling program to extend powder life, reduce powder inventory, and improve part quality. This study looks at various material properties of processed powder over its lifetime, including: surface quality, toughness, impact strength, elastic modulus, tensile strength, and shrinkage. A new approach to powder recycling and machine parameter adjustment will be recommended.

Description

Keywords

LCSH Subject Headings

Citation