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Verfahren zur schichtweisen Fertigung von Bauteilen, sowie Verfahren zur schichtweisen Fertigung von Bauteilen

 
: Höges, S.; Wissenbach, K.; Blindt, R.

:
Frontpage ()

DE 102010008781 A
German
Patent, Electronic Publication
Fraunhofer ILT ()

Abstract
Die vorliegende Erfindung betrifft eine Vorrichtung zur schichtweisen Fertigung von Bauteilen aus Pulvern thermoplastischer Materialien sowie ein Verfahren zur Herstellung derartiger Bauteile bzw. Formkoerper aus Pulvern thermoplastischer Materialien. Ferner betrifft die vorliegende Erfindung Verwendungsmoeglichkeiten sowohl der Vorrichtung als auch des Verfahrens.

 

The apparatus (1) for layer-wise manufacturing the components made of powders of thermoplastic materials, comprises a substrate (2), on which the component to be manufactured is made, a device (3) for storing the powder, a device (4) for transferring the powder from the storing device onto the substrate, a device (5) for mechanically compacting the deposited powder, and a device (6) for locally heating the powder. The storing device is arranged next to the substrate in x- and/or y-direction and is height-adjustable in the z-direction relative to the substrate. The apparatus (1) for layer-wise manufacturing the components made of powders of thermoplastic materials, comprises a substrate (2), on which the component to be manufactured is made, a device (3) for storing the powder, a device (4) for transferring the powder from the storing device onto the substrate, a device (5) for mechanically compacting the deposited powder, and a device (6) for locally heating the powder. The storing device is arranged next to the substrate in x- and/or y-direction and is height-adjustable in the z-direction relative to the substrate, and/or the transferring device and/or the compacting device are movably formed in x-, y- and/or z-direction relative to the surface of the substrate. The transferring device comprises a carbon fiber brush. The compacting device has a lamella guidable over the substrate. The lamella is formed in an application direction in a beveled manner. The transferring device and the compacting device are arranged one after the other in x- and/or y-direction and are fixed to a common suspension. The lower-sided margin of the compacting device turned towards the substrate is formed in the z-direction to the substrate as the corresponding margin of the transferring device. The suspension comprises a device for generating a mechanical vibration, which is transferrable to the transferring device and/or the compacting device. The local heating device is an infrared laser, carbon dioxide laser, a neodymium-doped yttrium aluminum garnet laser and/or a diode laser. An independent claim is included for a method for layer-wise manufacturing the components made of powders of thermoplastic materials.

: http://publica.fraunhofer.de/documents/N-199534.html