33 results about "Ultrasonic consolidation" patented technology

A method for manufacturing or creating highly integrated satellite systems intended for use within or to construct one or more satellite variants. The integrated satellite systems comprise embedded or encapsulated components, circuitry, and/or networks. Although other methodologies may be employed, an ultrasonic consolidation process is adapted to fabricate integrated satellite systems having a material matrix wherein one or more satellite components and/or material trace elements may be encapsulated. A direct write process may be used simultaneously or in succession with the ultrasonic consolidation process to deposit material traces onto one or more surfaces of the satellite components, thereby providing functional mesoscopic devices or systems.

A method for enhancing the bonding and linear weld density along the interface of material layers deposited in accordance with an ultrasonic consolidation manufacturing process, the method comprising: initiating an ultrasonic consolidation manufacturing process; depositing a first material layer having a contact surface; reducing surface roughness of the contact surface to prepare the contact surface to receive a subsequent material layer, the step of reducing facilitating an increased percentage and quality of material contact between the first and subsequent material layers; and bonding a subsequent material layer to the contact surface of the first material layer, as prepared.

Disclosed is method of enhancing bond quality in an ultrasonic consolidation process using a sonotrode having a power output level. The preferred embodiment includes the steps of inputting a plurality of process parameters associated with a localized geometry over which the ultrasonic consolidation is occurring, and varying the relationship between these parameters to control the power output level to optimize bond quality between layers of material as they are consolidated. The process parameters, alone or in combination, may include the speed of the consolidation; the amplitude of the ultrasonic energy; applied force; and/or temperature.

The invention provides a method of fabricating a fibre reinforced thermoplastic composite structure comprising: placing a first layer of fibre reinforced thermoplastic material on top of a second layer of fibre reinforced thermoplastic material; providing a local heating source and locally heating a portion of at least the upper layer of thermoplastic composite material; and providing an ultrasonic transducer and locally introducing ultrasonic energywaves to the heated portion of the thermoplastic material such that ultrasonic consolidation of the fibre reinforced thermoplastic occurs.

The invention provides a heterogeneous metal laser-ultrasonic compound welding method and device. The two advanced technologies of laser welding and ultrasonic consolidation are combined, that is, heterogeneous materials to be welded are connected in an overlap mode to form a lap joint, the position to be welded is welded in a laser welding mode, and the connecting purpose is realized. Under the condition that the temperature of the joint to be welded is below 10-30% of the melting point of an upper layer base material, ultrasonic welding is conducted, and efficient connection of the joint isrealized. According to the heterogeneous metal laser-ultrasonic compound welding method and device, the problem that a brittle joint is formed during welding of heterogeneous materials through a traditional welding method is solved, the problem that only a high energy beam welding method is adopted, though massive formation of intermetallic compound can be partially restrained, the strength of thejoint is still not high is also solved, and the problem difficult to solve that ultrasonic consolidation is only adaptive to low-melting-point thin plate welding is solved.

Orthopaedic implants are formed using processes whereby a metal alloy is cooled at a rate rapid enough that an amorphous or partially amorphous structure is retained. In the preferred embodiment, the metal alloy is a calcium-based metal alloy. The fabrication process may include die-casting or additive manufacturing process of the type wherein material increments are consolidated in accordance with the description without melting the material in bulk. Such processes include ultrasonic consolidation, electrical resistance consolidation, and frictional consolidation. The material increments are provided in the form of sheets, elongated tapes, filaments, dots or droplets. A preferred method includes a casting process to produce an initial form having an outer surface followed by an additive manufacturing process used to build up at least a portion of the outer surface. For example, the portion may include an intramedullary stem, bone-ingrowth surface, or articulating surface.

The invention provides an ultrasonic solidification-friction stir composite added material manufacturing device and an application method. The ultrasonic solidification-friction stir composite added material manufacturing device comprises a shell, a machining mechanism, a metal foil conveying mechanism, a driving mechanism, a cutting mechanism, a movable steering mechanism, an extrusion mechanism,an adjusting mechanism and locking universal wheels; the machining mechanism is fixedly connected into the shell; and the machining mechanism comprises a numerical control machining center, a controlpanel, a machining cavity, a substrate, a first electric slide rod, a first electric slide sleeve, a mounting plate, a connecting plate, a machining head, a transducer, an amplitude change rod, an insulation sleeve, a first cylinder, a first piston rod and a friction stir head. The ultrasonic solidification-friction stir composite added material manufacturing device can prepare high-performance metal samples; the mechanical performances of the samples are higher than forgings by 20-50%; and the device is low in size limiting, can machine large-size complex-structured parts, can from more thantwo metal materials according to working conditions and typical performance requirements of parts, and realizes preparation of heterogeneous/gradient function materials.

The invention provides a rapid preparation method of a composite material Ti/Al3Ti based on ultrasonic consolidation forming as supplementary means. The method comprises putting a cut Al band and a cut Ti band in an ultrasonic cleaner, washing the bands through alcohol for 15-20min, alternately and orderly stacking the Al band and the Ti band in an order of Al band-Ti band, preparing a Ti/Al prefabricated band through an ultrasonic consolidation fast formation device, separating the Ti/Al prefabricated band obtained by the ultrasonic consolidation forming from a base plate, putting the Ti/Al prefabricated band in a vacuum hot press furnace and carrying out hot press sintering to obtain the layered composite material Ti/Al3Ti. The rapid preparation method solves the problem that the traditional metal foil metallurgy technology for preparing the layered composite material Ti/Al3Ti has a slow reaction rate and a long preparation period, and provides a novel technological approach for further industrialization of the composite material Ti/Al3Ti.

The invention provides a preparation method of a Ti/Al3Ti layered composite material. The preparation method is characterized by comprising the following steps that S1, a sample is cleaned; S2, pulsecurrent auxiliary ultrasonic consolidation forming is carried out; S3, annealing treatment is carried out; and S4, pulse current auxiliary hot-pressing sintering is carried out. According to the preparation method, the atomic diffusion in the ultrasonic consolidation process can be promoted, the Ti/Al interface bonding quality is improved, the follow-up in-situ reaction test is facilitated, Ti/Alcan be activated through the instantaneous high energy, the reaction efficiency is improved, the crack defect is overcome, and then the Ti/Al3Ti layered composite material with high density and good bonding quality is obtained.

The invention provides a method for preparing a metal layered composite material through high-energy pulse current assisted ultrasonic consolidation, and the method comprises the following steps: preparing one or more metal foils, cleaning oil stains on the surface, and drying the cleaned foils for later use; connecting a pulse current power supply with ultrasonic consolidation equipment to ensurethat a strip/substrate between the positive electrode and the negative electrode of the pulse current is a unique path; by adopting a synchronous coupling mode, applying a pulsed electric field withcurrent density and frequency in the ultrasonic consolidation process, and finishing single-pass metal foil consolidation; and after the step 3 is completed, repeating the process of the step 3 as required to realize layer-by-layer accumulation and solidification of the metal foils, and finally, preparing the metal layered composite materials with different thicknesses/layers and obtaining the metal layered composite material prepared by high-energy pulse current assisted ultrasonic solidification. The electroplastic effect of the pulse current utilized by the method is essentially different from that of a traditional method for improving the plasticity of the material through the heat effect, and the plastic deformation capacity of the material can be instantaneously improved under the condition of extremely small temperature rise.

A system, method, and articles are disclosed with respect to depositing aluminum or alloys thereof, utilizing ultrasonic object consolidation. The method aspect of the invention comprises the steps of heat-treating an aluminum-based feedstock and ultrasonically consolidating the feedstock to a substrate to produce a part or a repair of a part, as might be required in an aerospace or aircraft structure. The feedstock may be solution heat-treated. This would include situations wherein the feedstock is solution heat treated off-line and maintained under controlled temperature conditions to prevent precipitation of solutes prior to the ultrasonic consolidation. Alternatively, the feedstock may be heat-treated on-line by passing it through a temperature- and/or atmosphere-controlled chamber prior to ultrasonic consolidation. The feedstock may be supported to minimize slumping due to creep. The feedstock may be T4, or may be aged, to T6, for example. The feedstock may be allowed to age naturally at room temperature, or a heat source may be used to artificially age the consolidated feedstock. The substrate may be aged or unaged. The source of the aluminum-based feedstock is in the form of tapes, sheets, wires, or droplets.

The invention discloses a gel ultrasonic concussion forming method for metal parts and belongs to the field of metal part preparation in powder metallurgy production process. The method includes the steps that metal powder is suspended in premixed liquid of hydroxyethyl methylacrylate and methylbenzene to obtain high-concentration suspension slurry, and the slurry is poured into a mould to be subject to ultrasonic concussion, wherein the premixed liquid has a certain concentration, and an initiating agent is dissolved in the premixed liquid; curing time is controlled through adjusting the adding quantity of a catalyst in the slurry so that a curing reaction can be completed in the concussion process after a certain time; the viscosity of the slurry is controlled through adding the appropriate amount of macromolecular plasticizer, wherein the problems of uneven density and composition segregation caused by concussion are solved. The method can overcome the defects that a common gel-casting formed product is high in porosity and low in strength, improve solid content of the common gel-casting formed product greatly and prepare high-density and high-strength metal products, and is especially suitable for preparing the metal parts which are difficult to machine, such as cemented carbide and high-melting-point alloy.

The invention provides a method and device for evaluating metal mechanical properties by ultrasonic cavitation. The method comprises the following steps of (1) preparing de-aerated water; injecting water into a pressurization cabin, and removing bubbles of the inner surface of an ultrasonic transducer; (2) cutting metal to be detected into slice samples; (3) fixing the metal slice samples in the ultrasonic transducer; parallelly sticking optical fiber on the metal sample surface; fully injecting water; (4) starting a driving device of the transducer; connecting a high-speed image pick-up system; (5) determining the focus position and the optimal work frequency of the ultrasonic transducer; regulating the position of the sample so that the focus is positioned on the surface; (6) shooting the metal cavitation erosion process through high-speed image pickup; (7) observing the metal surface damage appearance, and evaluating the mechanical property by combining the metal physical property.The metal mechanical property is evaluated from the metal surface topography angle by an acoustic cavitation method; the advantages of science and convenience are realized; important theoretical and application values are realized for studying the metal mechanical constitutive relationship.

The invention discloses a fiber metal laminate composite material and a preparation method thereof, and belongs to the field of preparation and forming of advanced composite materials. The method comprises the steps that metal sheets are taken, and the surfaces of the metal sheets are sequentially subjected to degreasing treatment, acid pickling, anodic oxidation treatment and primer spraying; the metal sheets and fiber resin layers are alternately laid on a working platform through ultrasonic-assisted rolling equipment, ultrasonic treatment and rolling are carried out layer by layer in the laying process, and a formed fiber metal laminate is cooled after laying is completed; and after the formed fiber metal laminate is cooled to the room temperature, the working platform is opened, and the prepared fiber metal laminate composite material is taken out. According to the invention, original ultrasonic-assisted rolling equipment is adopted for conducting ultrasonic treatment on the fiber metal laminate through ultrasonic vibration, the ultrasonic consolidation additive manufacturing method does not need an autoclave procedure, the preparation time is shortened, and the preparation efficiency is improved.

The invention discloses a method of additively manufacturing metal composite board with a built-in circuit and belongs to the field of additively manufacturing. A technical problem is solved by providing such method, by which a circuit is directly wrote to the metal composite board, so that the circuit and the metal composite board are manufactured at the same time to form the integrated metal composite board with the built-in circuit via the additively manufacturing. In one technical scheme for solving the problem, the method includes the steps of: pre-cutting preset circuit paths in a metalfoil material; performing ultrasonic consolidation shaping to the metal foil material; and successively filling the circuit paths with an insulation material, a conductive material and an insulation material, and integrating the circuit with the metal composite board. The method can be widely applied to the field of additively manufacturing.

The invention relates to an ultrasonic consolidation rapid manufacturing method for a continuous ceramic fiber uniform-distribution aluminum strip. According to the pretreatment technological parameters of SiC ceramic fibers and Al2O3 ceramic fibers, the holding temperature ranges from 600 DEDG C to 700 DEG C, and the holding time is 1.5 h and 0.5 h. According to the manufacturing technological parameters of the pretreated bundle ceramic fiber uniform-distribution aluminum strip, at normal temperature, the added load ranges from 125 kgf to 150 kgf, the amplitude ranges from 20 microns to 40 microns, and the speed ranges from 30 mm/s to 50 mm/s. Bundle fibers in the manufactured fiber uniform-distribution aluminum strip are scattered and distributed uniformly, and are well bonded with the aluminum strip, the interface bonding situation is good, aluminum strips are bonded closely and have no obvious interface, and the rapid forming manufacturing method can be used for manufacturing the ceramic fiber uniform-distribution aluminum strip.

The invention discloses a strip conveying device used for an ultrasonic consolidation additive manufacturing machine, and belongs to the field of 3D printing additive manufacturing. In order to solve the technical problems, the strip conveying device used for the ultrasonic consolidation additive manufacturing machine can be used for straightening, cleaning and cutting raw materials. According to the technical scheme, the strip conveying device used for the ultrasonic consolidation additive manufacturing machine comprises a base, a machine frame and a strip conveying roller, and further comprises a first straightening roller, a second straightening roller, conveying rails and cutters, wherein the machine frame is arranged above the base, the strip conveying roller, the first straightening roller and the second straightening roller are arranged on the machine frame, the end of the machine frame is connected with the conveying rails, cleaning devices and drying devices are arranged on the upper and lower sides of the conveying rails, and the cutters are arranged on the conveying rails. The strip conveying device used for the ultrasonic consolidation additive manufacturing machine can be widely applied to the field of additive manufacturing.