Abstract:
A method of producing a plate-like construction having a double-wall structure and its use. According to the present invention, several elongated profiles which have essentially straight central axes are arranged against each other in such a way that adjacent hollow profiles abut each other and together form, in general terms, a flat stack having two opposite sides. The hollow profiles are welded together in order to join them with welded seams, in which case the welding is essentially carried out simultaneously from both sides of the stack. Besides good flexural strength and the opportunity to recycle, thermoplastic plates which are produced by means of the present method exhibit resistance to corrosion, decay and mould.
Abstract:
The present application relates to a method for brazing a first metal member (1), on which an oxide (Ia' ) forms during brazing, and a second metal member (2), in which a high-wettability metal (3) having a wettability with a brazing filler metal (4) that is higher than that of the oxide (1a') is applied to at least a brazing surface of the first metal member (1). The first metal member (1) and the second metal member (2) are then joined by first providing the brazing filler metal and then heating the brazing filler metal (4) to melt the brazing filler metal (4). The oxide covering film (Ia) is formed on the portion of the surface of the first metal member (1) to which the high-wettability metal (3) was not applied. The present application relates also to a reformer manufactured by this method, wherein first and second metal members (1,2) having a plurality of grooves.
Abstract:
The invention relates to a structural element comprising at least two aluminium alloy parts which have different property trade-offs and which are welded together. According to the invention, at least one of the aforementioned parts is: (i) selected in an aluminium alloy that is different from the other of said at least two parts, and/or (ii) selected in an initial metallurgical state that is different from the other of said at least two parts. Moreover, at least one of the two parts has been pre-tempered prior to welding and the structural element is subjected to post-welding tempering, thereby conferring a final metallurgical state on each of said at least two parts. In addition, the parts are preferably welded by means of friction stir welding. The invention also relates to a method of producing said structural element.
Abstract:
Various rolled or extruded profiles (1c, 1d) with weld locations are used to connect together structural sandwich plate members comprising first and second outer metal plates (21) and an elastomer core (22) bonded to said outer metal plates (21) with sufficient strength to transfer shear forces therebetween.
Abstract:
The present disclosure is directed at alloys and method for layer-by-layer deposition of metallic alloys on a substrate to produce a metallic part. Applications for the metallic parts include pumps, pump parts, valves, molds, bearings, cutting tools, filters or screens.
Abstract:
A method of laser welding is provided. The method includes arranging at least one heat source point from a first collection of heat source points so as to overlap at least a portion of at least one heat source point from a second collection of heat source points, irradiating a portion of a target (2) with the first and second collections of heat source points, the heat source points maintaining a linear profile within their respective collection, and directing the at least two collections of heat source points in a travel direction along a weld line, each linear profile maintaining an oblique angle relative to the travel direction.
Abstract:
Réalisation d'un renfort métallique (4, 6) destiné à être monté sur le bord d'attaque ou de fuite d'une aube composite de turbomachine, comportant les étapes consistant à mettre en forme deux tôles (1 ), à les positionner de part et d'autre d'un noyau (2), à assembler les deux tôles (1 ) l'une à l'autre autour du noyau (2) sous vide, à les conformer sur le noyau (2) par compression isostatique à chaud, et à les découper pour séparer le renfort (4, 6) et libérer le noyau (2). Une rugosité prédéterminée est donnée à au moins une partie de la surface du noyau (2) et est transférée à une partie correspondante de la surface interne du renfort (4, 6) par la compression isostatique à chaud.