EP 1706255 A1 20061004 - LAYER-STRUCTURING METHOD FOR THE PRODUCTION OF A THREE-DIMENSIONAL OBJECT, AND MATERIAL SYSTEMS SUITABLE THEREFOR
Title (en)
LAYER-STRUCTURING METHOD FOR THE PRODUCTION OF A THREE-DIMENSIONAL OBJECT, AND MATERIAL SYSTEMS SUITABLE THEREFOR
Title (de)
SCHICHTAUFBAUENDES VERFAHREN ZUR HERSTELLUNG EINES DREIDIMENSIONALEN GEGENSTANDES SOWIE DAF R GEEIGNETE MATERIALSYSTEME
Title (fr)
PROCEDE POUR PRODUIRE UN OBJET TRIDIMENSIONNEL PAR SUPERPOSITION DE COUCHES, ET SYSTEMES DE MATERIAUX CORRESPONDANTS
Publication
Application
Priority
- EP 2005000603 W 20050121
- DE 102004003485 A 20040123
Abstract (en)
[origin: DE102004003485A1] Particles with internal cavities are applied onto a surface to form a layer. An energy beam or fluid jet is directed at selected areas of the layer according to the object cross-section to bond the particles together. The process is repeated for a number of layers to progressively form the object. Cavities in the particles remain intact during an irradiation or other process for bonding particles together. Particle diameter is not >500, preferably 10-300 microns. Cavity volume in a particle is 30-90%, preferably 50-80% of total particle volume. Independent claims are included for: a) use of particles with internal cavities for forming three-dimensional objects; b) a multi-phase material system for use in 3-D printing containing particles with internal cavities and a fluid which on contact with particles joins them together; c) particles with cavities for use in selective laser sintering processes and which have a material on the surface with a softening point not >100[deg]C; d) an object made from particles joined together by the claimed process and using the claimed material system.
IPC 8 full level
B29C 67/00 (2006.01); B22F 1/06 (2022.01); B22F 3/105 (2006.01); B28B 1/00 (2006.01); B29C 41/00 (2006.01)
CPC (source: EP US)
B22F 1/06 (2022.01 - EP US); B28B 1/00 (2013.01 - EP US); B28B 1/001 (2013.01 - EP US); B29C 64/153 (2017.07 - EP US); B33Y 10/00 (2014.12 - EP US); B33Y 70/00 (2014.12 - EP US); B22F 2998/00 (2013.01 - EP US); Y02P 10/25 (2015.11 - EP US); Y10T 428/12014 (2015.01 - EP US)
Citation (search report)
See references of WO 2005070654A1
Citation (examination)
- JP H02116537 A 19900501 - MATSUSHITA ELECTRIC WORKS LTD
- EP 0393676 A1 19901024 - DU PONT [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 102004003485 A1 20040916; DE 102004003485 B4 20050616; BR PI0507028 A 20070605; CN 1910032 A 20070207; EP 1706255 A1 20061004; JP 2007518605 A 20070712; RU 2006126699 A 20080127; US 2007267784 A1 20071122; WO 2005070654 A1 20050804
DOCDB simple family (application)
DE 102004003485 A 20040123; BR PI0507028 A 20050121; CN 200580002876 A 20050121; EP 05701113 A 20050121; EP 2005000603 W 20050121; JP 2006550057 A 20050121; RU 2006126699 A 20050121; US 58608105 A 20050121