Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making composite or hollow article
Reexamination Certificate
2005-02-24
2008-11-18
King, Roy (Department: 1793)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making composite or hollow article
C419S047000, C219S121160, C219S121650, C264S113000, C264S497000
Reexamination Certificate
active
07452500
ABSTRACT:
The invention relates to a method for making metallic and/or non-metallic products2, in particular dental products, by freeform sintering and/or melting, in which the products2are fabricated layer by layer from a material5that is applied layer by layer by means of a computer-controlled high-energy beam7, in particular a laser or electron beam. In order to reduce production times, beam7irradiates predetermined positions P1to P6of a layer of a material5a plurality of time, namely m times, where m is a whole integer greater than 1. Each of said positions P1to P6is initially heated during the first irradiation to a temperature below the melting point Tmeltof the material5, 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 (5) fuses at said position to the layer thereunder. The invention also relates to an apparatus for performing said method.
REFERENCES:
patent: 5393482 (1995-02-01), Benda et al.
patent: 5427733 (1995-06-01), Benda et al.
patent: 5508489 (1996-04-01), Benda et al.
patent: 5908569 (1999-06-01), Wilkening et al.
patent: 6215093 (2001-04-01), Meiners et al.
patent: 2003/0201255 (2003-10-01), Manetsberger et al.
patent: 2004/0228754 (2004-11-01), Abe et al.
patent: 196 49 965 (1996-12-01), None
patent: 199 35 274 (1999-07-01), None
patent: WO 01/81031 (2001-11-01), None
Altera Law Group LLC
BEGO Medical GmbH
King Roy
Mai Ngoclan T
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