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Titre du document / Document title

Sand, die and investment cast parts via the SLS® Selective Laser Sintering process

Auteur(s) / Author(s)

VAN DE CROMMERT S. (1) ; SEITZ S. (1) ; ESSER K. K. (1) ; MCALEA K. (2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) DTM GmbH, Hilden, ALLEMAGNE
(2) DTM Corp., Austin, TX, ETATS-UNIS

Résumé / Abstract

Complex three-dimensional parts can be manufactured directly from CAD data using rapid prototyping processes. SLS Selective Laser Sintering is a rapid prototyping process developed at the University of Texas at Austin and commercialised by DTM Corporation. SLS parts are constructed layer by layer from powdered materials using laser energy to melt CAD specified cross sections. Polymer, moral, and ceramic powders are ail potential candidate materials for this prooess. In this paper the fabrication of complex moral parts rapidly using the investment, die and sand casting technologies in conjunction with the Selective Laser Sintering process are being explained and discussed. TrueForm and Polycarbonate were used for investment casting, whilst RapidSteel metal mould inserts were used for the die casting trials. Two different SandForm materials, zircon and silica sand, are currently available for the direct production of sand moulds and cores. The flexible and versatile Selective Laser Sintering process all these materials on one single Sinterstation. Material can be changed fast and easily between two different builds.

Revue / Journal Title

SPIE proceedings series  

Source / Source

Congrès
Rapid prototyping and flexible manufacturing :   ( Munich, 16 June 1997 )
Rapid prototyping and flexible manufacturing. Conference, Munich , ALLEMAGNE (16/06/1997)
1997  , vol. 3102, pp. 95-105[Note(s) : VII, 152 p., ] (2 ref.) ISBN 0-8194-2522-2 ;  Illustration : Illustration ;

Langue / Language

Anglais

Editeur / Publisher

Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, INTERNATIONAL  (1988) (Revue)
SPIE, Bellingham WA, ETATS-UNIS  (1997) (Monographie)

Mots-clés anglais / English Keywords

Computer aided manufacturing

;

Rapid prototyping

;

Sintering

;

Laser beam

;

Powder

;

Three dimensional model

;

Tooling

;

Pressure molding

;

Injection molding

;

Mold

;

Sand casting

;

Mots-clés français / French Keywords

Fabrication assistée

;

Prototypage rapide

;

Frittage

;

Faisceau laser

;

Poudre

;

Modèle 3 dimensions

;

Outillage

;

Moulage sous pression

;

Moulage injection

;

Moule

;

Coulée en sable

;

Mots-clés espagnols / Spanish Keywords

Fabricación asistida por computador

;

Prototipificación rápida

;

Sinterización

;

Haz láser

;

Polvo

;

Modelo 3 dimensiones

;

Herramienta

;

Moldeo bajo presión

;

Moldeo por inyección

;

Molde

;

Colada en arena

;

Localisation / Location

INIST-CNRS, Cote INIST : 21760, 35400007751788.0120

Nº notice refdoc (ud4) : 2037982



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