Abstract:
An embodiment provides a method of constructing a cellular structure having nodes (24) therein comprising: providing at least one truss layer (23) comprised of at least one truss unit, at least one of the truss units being comprised of truss members (22); providing at least one panel (21) in mechanical communication with the at least one truss unit of the at least one truss layer, the mechanical communication defined contact regions wherein the at least one truss unit is coupled to the at least one panel; the nodes being defined as intersections existing among any of the truss members and the nodes also being defined by the contact regions (33); providing at least one node pin (41), the at least one node pin spanning between two desired the nodes; and diffusion bonding at least one of the truss layer to the at least one panel. The bonding includes: applying heat, and applying force that results in the truss layer and the panel that are being bonded to be pressed together, the node pins provide support for the structure so as to concentrate or transmit the applied force onto the contact regions.
Abstract:
A honeycomb cell structure has a plurality of first strips each formed into a generally zig-zag configuration and placed side by side to form a plurality of rows of cells in a generally honeycomb configuration with nodes between adjacent cells in each row, and a plurality of second strips of brazing foil. Each second strip is positioned between a respective pair of adjacent first strips and the first and second strips are secured together at each node such that a brazing foil strip extends across each cell in each row of the honeycomb. The second strips have a series of spaced slits extending transversely from at least one side edge across at least a distance equal to greater than half of the width of the second strip, with at least some of the slits being located within the cells.
Abstract:
The invention relates to a method for producing a soldered honeycomb body arrangement, whereby, a honeycomb body (1) is initially constructed in the form of piles and/or rolls of metal sheets which are at least partially structured, so that the honeycomb body (1) comprises channels which allows fluid to flow through; the honeycomb body (1) is subsequently placed inside a tool (3), which outlines the outer form of the honeycomb body (1). The outer form of the honeycomb body (1) is essentially the defined, inner form of the outer jacket or the housing (2). The honeycomb body (1) is then soldered with solder powder according to a known soldering method for honeycomb bodies (1) arranged in an outer jacket; the honeycomb body (1) is then subsequently transferred by a tool (3) and arranged in an outer jacket or housing (2), whereby only a minor relative movement of the metal sheets occurs during the transfer, and finally a soldering process is carried out. The invention is characterised in that it enables front-faced soldered honeycomb bodies to be produced in outer jackets or housing which are unsuitable for front-faced soldering methods. Relative movements of the sheets in the honeycomb bodies (1) is reduced so that solder powder does not become detached and the production of a soldered honeycomb body arrangement is carried out with homogeneous application of solder in a rational manner.
Abstract:
A method and an apparatus pertaining to recycling and reuse of unwanted light in additive manufacturing can multiplex multiple beams of light including at least one or more beams of light from one or more light sources. The multiple beams of light may be reshaped and blended to provide a first beam of light. A spatial polarization pattern may be applied on the first beam of light to provide a second beam of light. Polarization states of the second beam of light may be split to reflect a third beam of light, which may be reshaped into a fourth beam of light. The fourth beam of light may be introduced as one of the multiple beams of light to result in a fifth beam of light.
Abstract:
An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved structure formation, part creation and manipulation, use of multiple additive manufacturing systems, and high throughput manufacturing methods suitable for automated or semi-automated factories are also disclosed.
Abstract:
A component brazed to another, constraining component such as sleeve assembly brazed in a bore of a bit body. The braze joint includes particulate material in the gap between the components.
Abstract:
Device and method for successively bonding two outer face plates with an inner structure plate without using a filler metal or an adhesive. The device includes cylindrical first and second roller type electrodes, an electrode rotational motor, a distance controller, and a current supply unit. The rotational axes of electrodes are arranged are vertically arranged with an interval in a vertical plane. The motor rotates the first and second roller type electrodes. The distance controller controls an interval between the electrodes. The current supply unit supplies a current to both ends of the electrodes. Two outer face plates and an inner structure plate arranged therebetween are compressed and passed between the electrodes, and a current is applied to compression points of the two outer face plates and the inner structure plate to generate resistance heat at the compression points and bond the two outer face plates and the inner structure plate.
Abstract:
A method and apparatus for producing a metal core sandwich structure that is lightweight and many times stiffer than regular sheet metal, and which is easily formable into curved structures as well as structures having compound curves. In one embodiment, a formed metal core includes a plurality of cells comprising alternating front and rear projections extending outwardly in front of and behind a median plane, with each projection having a bonding surface area or land configured to be brazed or bonded with corresponding external metal sheets on both sides of the formed metal core. A plurality of micro- abrasions or indentations are formed on the bonding lands, allowing stronger brazing or bonding joints to be formed between the metal core and the external metal sheets by facilitating improved capillary action by the metal core during the brazing or bonding process.
Abstract:
Vorgeschlagen ist ein Verfahren und eine Vorrichtung zur Herstellung von metallischen Wabenkörpern zur Abgasbehandlung mobiler Verbrennungskraftmaschinen. Die Komponenten des Wabenkörpers werden vor einem Lötprozess mit Haftmittel versehen, wobei das Auftragen des Haftmittels an vorgegebenen Teilbereichen präzise in Tropfenform erfolgt. Besonders bevorzugt ist hierbei das Auftragen von Haftmittel mittels einer Drucktechnik Ink-jet, Bubble-jet, Drop-on-Demand. Somit lassen sich zum Beispiel solche, aus Blechfolien aufgebaute, Wabenkörper einfach produzieren, die eine über die Strömungsrichtung und/oder im wesentlichen quer zur Strömungsrichtung inhomogene Flexibilität aufweisen.
Abstract:
A method of manufacturing a honeycomb body (1) formed by winding around, stacking, and brazing metal flat foils (3) and corrugated foils (4), characterized by comprising the steps of applying adhesive agent to the brazed portions of the flat or corrugated foils corresponding to the connection part (17) at the end part of the honeycomb body and/or a cross sectional connection part (18) inside the honeycomb body apart axially from the end part, winding around the flat foils and corrugated foils to form a honeycomb body shape, bringing the portion of the honeycomb body end face corresponding to the connection part (16) over the entire axial length of the honeycomb body outer peripheral part into contact with the surface of binder liquid to suck the binder into the contact part (5) between the flat foils and the corrugated foils, and spraying wax powder over the honeycomb body to adhere the wax material onto the adhesive agent and binder adhered parts, whereby the equipment cost of a honeycomb body manufacturing device can be reduced and a measure against fire of the honeycomb body can also be taken without causing a defective coating and an increase in coating area found in the coating of adhesive agent with a roll.