US Patent 7241415 Metallic parts fabrication using selective inhibition of sintering (SIS)
Patent 7241415 was granted and assigned to University of Southern California on July, 2007 by the United States Patent and Trademark Office.
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A selective inhibition of sintering (SIS) technique may be used to fabricate a three-dimensional (3-D) dense metal object from a binderless metal powder. Layers of metal powder are provided on a build tank. For each layer, regions of the layer are sinter-inhibited, e.g., by depositing a sinter-inhibiting material such as a ceramic slurry, a metal salt, or oxidizing metal particles in the powder using chemicals or a concentrated heat source. Each layer may be compacted before the next layer is provided. A final compact may then be sintered. Unwanted sintered sections may be removed from the compact at boundaries formed by the sinter-inhibited (unsintered) regions, and the object extracted.
US Patent 07241415 Metallic parts fabrication using selective inhibition of sintering (SIS) US Patent 7241415 Metallic parts fabrication using selective inhibition of sintering (SIS)
US Patent 07241415 Metallic parts fabrication using selective inhibition of sintering (SIS)
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