INTERMITTENTLY CONNECTED METAL MATRIX COMPOSITE BARS

The present invention provides for assemblies comprising metal matrix composite bars where the bars only intermittently have mutual contact. Minimally two bars of metal matrix composite are joined, for example, by lap joints, or by the use of incorporated tabs and slots or over-lapping slots, at are...

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Bibliographische Detailangaben
Hauptverfasser:	ROWE, MATTHEW, M, NOLTE, ROBERT, WITZGALL, JAMES, F, JOSEPH, BRIAN, E, WOLFE, GREGG, W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PUNCHING METAL SOLDERING OR UNSOLDERING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The present invention provides for assemblies comprising metal matrix composite bars where the bars only intermittently have mutual contact. Minimally two bars of metal matrix composite are joined, for example, by lap joints, or by the use of incorporated tabs and slots or over-lapping slots, at areas of mutual contact to form the assemblies. The metal matrix composite assemblies of the present invention may be readily assembled to provide structures, supports, or sub-assemblies, and the like, that may exhibit high strength and stiffness coupled with relatively low mass. Additionally, such assemblies may withstand exposure to elevated temperatures higher than can be tolerated by polymeric composites. Such assemblies are expected to be particularly suitable for lightweight, stiff support structures for space booms, satellite structures, mirror backings, solar panel supports, wall reinforcement, and the like. La présente invention a trait à des ensembles comportant des barres de matériau à matrice métallique dans lesquels les barres n'ont qu'un contact mutuel intermittent. Au moins deux barres de matériau à matrice métallique sont assemblées, par exemple, par des joints chevauchés, ou par l'utilisation de languettes incorporées, un niveau de zones de contact mutuel pour constituer les ensembles. Les ensembles de matériau à matrice métallique de la présente invention peuvent être facilement assemblés pour réaliser des structures, support, ou sous-ensembles, et analogues, qui peuvent présenter une solidité et une rigidité couplées avec un poids relativement faible. En outre, de tels ensembles peuvent résister à l'exposition à des températures supérieures à celles qui peuvent être tolérées par des composites à base de polymères. De tels ensembles sont destinés à être particulièrement appropriés pour des structures de support légers et rigides pour des bras spatiaux, des structures de satellite, des supports de miroirs, des supports de panneaux solaires, des renfort de parois, et analogues.