Smoothing method for layered deposition modeling

Details Smoothing method for layered deposition modeling Smoothing method for layered deposition modeling

B - Operations, Transporting

29

C

B29C 41/02 (2006.01) B29C 67/00 (2006.01) B29C 71/00 (2006.01) B29C 71/02 (2006.01) G06F 17/50 (2006.01) B29C 41/48 (2006.01) G06F 19/00 (2006.01)

Patent

CA 2482848

Disclosed is a method for smoothing the surface of an object built from a polymeric or wax material using a layered manufacturing rapid prototyping technique. After the object is built it is exposed to a vaporized solvent such as in a vaporizer for an exposure time sufficient to reflow the object surface. A solvent is chosen based on its ability to transiently soften the material which forms the object, and thereafter evaporate off the object. The object is removed from the solvent and allowed to dry, producing a smooth finished part.

La présente invention concerne un procédé de lissage de la surface d'un objet (10, 40, 40') qui est fabriqué à partir d'un matériau polymère ou de cire en utilisant une technique de prototypage rapide pour la production en couches. Après avoir fabriqué l'objet (10, 40, 40'), celui-ci est exposé à un solvant vaporisé, par exemple dans un vaporisateur (30), durant une période d'exposition qui permet la refusion de la surface de l'objet. Le solvant est choisi selon sa capacité de ramollir de façon transitoire le matériau dont l'objet est fabriqué et d'évaporer ensuite la surface de l'objet. L'objet est retiré du solvant afin de le laisser sécher, ce qui permet d'obtenir une pièce finie lisse.

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