The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2008
Filed:
Feb. 24, 2005
Ingo Uckelmann, Bremen, DE;
Ingo Uckelmann, Bremen, DE;
BEGO Medical GmbH, , DE;
Abstract
The invention relates to a method for making metallic and/or non-metallic products, in particular dental products, by freeform sintering and/or melting, in which the productsare fabricated layer by layer from a materialthat is applied layer by layer by means of a computer-controlled high-energy beam, in particular a laser or electron beam. In order to reduce production times, beamirradiates predetermined positions Pto Pof a layer of a materiala plurality of time, namely m times, where m is a whole integer greater than 1. Each of said positions Pto Pis initially heated during the first irradiation to a temperature below the melting point Tof the material, and during the mth irradiation to a temperature above said melting point and is completely melted over the entire thickness of the layer in such a way that the material () fuses at said position to the layer thereunder. The invention also relates to an apparatus for performing said method.