Inert gas-assisted laser machining of ceramic-containing articles

An article includes a ceramic material and features a machined surface that is characteristic of cold ablation laser machining, and the machined surface exhibits no visible oxidation. A laser machining apparatus and technique is based on cold-ablation, but is modified or augmented with an inert assi...

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Bibliographische Detailangaben
Hauptverfasser:	Gratrix, Edward J, Aghajanian, Michael K, Mastrobattisto, Daniel, McDannald, Austin Scott
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LIME, MAGNESIA MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS REFRACTORIES SEMICONDUCTOR DEVICES SLAG SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF NATURAL STONE WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	An article includes a ceramic material and features a machined surface that is characteristic of cold ablation laser machining, and the machined surface exhibits no visible oxidation. A laser machining apparatus and technique is based on cold-ablation, but is modified or augmented with an inert assist gas to minimize deleterious surface modifications and mitigate oxide formation associated with laser machining.