146 results about "High energy beam" patented technology

The invention provides a multi-model driven powder bed additive manufacturing method and device. The method comprises the following steps: establishing at least one first 3D model and applying a first process parameter to the at least one first 3D model; establishing at least one second 3D model completely or partially overlapping the at least one first 3D model and applying a second process parameter different from the first process parameter to the at least one second 3D model; and driving the at least one high-energy beam by using the at least one first 3D model and the at least one second 3D model, respectively, so that the at least one high-energy beam performs first scanning treatment corresponding to the first process parameter and second scanning treatment corresponding to the second process parameter on the powder bed to manufacture the component layer by layer, therefore, accurate scanning of different process parameters on the same position is realized, and the manufacturing precision and the microstructure quality of the component are improved.

The invention relates to the technical field of powder metallurgy materials, and discloses a binding-phase-free hard alloy and a preparation method thereof.The binding-phase-free hard alloy comprises, by mass, 75-80 parts of WC; 8 to 12 parts of TiC; 5 to 8 parts of TaC; 3 to 5 parts of ZrC; 1.5 to 2.5 parts of HfC; 0.8 to 1.2 parts of rare earth oxide; the preparation method comprises the five key steps of core-shell structure composite powder preparation, high-energy beam melting gradient accumulation, microwave-magnetic field composite field activation, multi-stage pressure plasma sintering and staged variable-rate gradient cooling. And component gradient design is cooperated with a multi-field coupling process. Through collaborative design of a core-shell structure hard phase and a gradient composite phase, and in combination with a multi-field coupling activated sintering and gradient cooling process, the problem of obdurability balance of the non-binding-phase hard alloy is solved, the microstructure stability is optimized, and the comprehensive performance and the process controllability are improved.

The invention discloses a light energy focusing vacuum 3D printing fusion forming device and method. The device comprises a vacuum cabin system used for providing a vacuum environment, an optical energy focusing system used for forming fixed high-temperature light spots in the vacuum environment through external optical energy, a powder laying and printing system used for laying powder layer by layer in the vacuum environment and conducting 3D printing through the high-temperature light spots, and a control system used for achieving automatic operation of the whole device. The vacuum cabin system comprises a cabin body, a vacuum pump, a cabin body upper cabin door, a lens mounting seat, a vacuum detection piece and a vacuum valve; the light energy focusing system comprises a condensing lens, a light source and a light shield; the powder laying and printing system is arranged in the cabin body and comprises a powder pool mechanism, a powder laying mechanism and a planar motion mechanism. According to the device, combination of high-energy beam 3D printing fusion forming and vacuum 3D printing is achieved, and the vacuum light energy sintering 3D printing process can be completed under the ground condition.

The invention provides a titanium alloy surface laser ultrasonic composite cleaning reinforced welding method, belongs to the technical field of non-ferrous metal surface cleaning and modification, and aims to solve the problems of poor welding seam quality and poor surface corrosion resistance, fatigue resistance and the like in the titanium alloy welding process. The cleanliness of the surfaces of components, welding grooves and the like is improved, and the production and machining efficiency is improved. In the fusion welding process, ultrasonic excitation of a high-energy beam is applied to the back face of a weld joint, the grain size of the weld joint is refined, the mechanical property of a connector is improved, rotating ultrasonic waves are applied to the surface of a component and the weld joint, the component and the surface of the weld joint generate plastic deformation, and the overall performance of the component and the surface of the weld joint is improved. The high temperature resistance, the corrosion resistance, the fatigue resistance and the like are improved.

The invention discloses a TC4 skin self-adaptive tailored blank laser welding method based on light beam scanning-pulse cooperation, and belongs to the technical field of high-energy beam precision welding. The problems that in the batch production process of the aerospace thin-wall titanium alloy standardized cabin, due to skin assembly gap fluctuation, plate thickness misalignment, V-shaped notches and other shape and position deviations, the shape of a molten pool is unstable, and welding seam forming consistency is poor are solved. A collaborative matching method of a scanning path and pulse energy parameters is adopted to improve the bridging efficiency of a molten pool and the form stability of a bridging liquid film, and meanwhile, self-adaptive response adjustment of welding parameters is achieved by combining workpiece form and position deviation changes and real-time monitoring feedback of dynamic bridging behaviors of the molten pool. According to the technology, continuous and stable welding seam forming under the assembly working condition of a gap of 0.2-0.4 mm, a misalignment of 0.3-0.6 mm or a V-shaped notch of 20-30 degrees is achieved for the specification of a skin with the thickness larger than or equal to 1.5 mm, the tensile strength of a welding seam reaches 95% or above of a base material, and meanwhile high welding heat efficiency is maintained. According to the method, the adaptability of the laser welding technology to the workpiece form and position deviation is remarkably improved through the multi-parameter synergistic effect and process monitoring feedback regulation and control, and key technical support is provided for solving the high-quality and stable welding problem of a new-generation spaceflight standard general cabin structure in the development and batch production process.

A method of manufacture for creating an NDE test specimen with predictably located one or more flaws according to a digital flaw map and of a material having an angle of refraction matching industrial workpieces for testing and training is disclosed. Comprising selecting a workpiece material for the NDE test specimen having a substantially similar angle of refraction to industrial workpieces, fabricating the NDE test specimen from the workpiece material, executing a CAD software on one or more processors of a controller computer, reading the digital flaw map comprising coordinates of the one or more flaws to be applied to the NDE test specimen, controlling a high energy beam CNC to apply the digital flaw map to the NDE test specimen, selecting the workpiece material among crystal, borosilicate glass, and acrylic, applying a laser beam at a plurality of energy points within the NDE test specimen.

The invention provides a ceramic material or glass material and a manufacturing method thereof. The manufacturing method comprises the following steps: preparing a precursor of a ceramic material or a glass material; processing the precursor by using a high-energy beam to obtain a processed precursor; and converting the processed precursor into a ceramic material or a glass material. The ceramic material or the glass material provided by the invention is manufactured by the manufacturing method. The ceramic part or the glass part in the 3C product is manufactured by combining 3D / 4D and other additive manufacturing technologies with a subtractive manufacturing technology. The ceramic or glass material of the present invention has high resolution and complex shape.

The invention discloses a graphene-containing polyurethane composite material with a light-heat-electricity-heat conversion and hydrophobic surface structure as well as a preparation method and application of the graphene-containing polyurethane composite material. The composite material sequentially comprises a pure polyurethane layer, a graphene-polyurethane composite material layer and a hydrophobic surface with a rough micro-nano structure from bottom to top. The bottom of the composite material is a pure polyurethane layer, so that efficient heat collection, temperature rise and heat slow release can be realized. According to the preparation method disclosed by the invention, the graphene is directionally arranged in the process of printing the molten graphene-polyurethane composite material layer by utilizing an FDM 3D printing process, so that the obtained composite material layer has a high anisotropic heat conductivity ratio. According to the method, the surface of the composite material is subjected to laser induction treatment by using high-energy beam irradiation, so that hydrophobic chemical components and chemical bonds on the surface of the material are increased, and a rough micro-nano porous structure generated on the surface of the material under the action of laser is combined, so that the composite material has a hydrophobic characteristic and has extremely high application potential in the field of all-weather deicing / anti-icing application.

The invention discloses an electron beam bunch superposition method and device, and the beam bunch energy of the head part and the tail part of an electron beam bunch is different by adopting a beam energy absorption effect. And then a plurality of alpha magnets are utilized, so that the movement path of the high-energy beam bunches at the head of the beam bunch string is long, the movement path of the low-energy beam bunches at the tail of the beam bunch string is short, and longitudinal superposition and compression of the beam bunch string are achieved. And the alpha magnet can simultaneously realize an achromatic function, so that the transmission envelope after the beam bunch is compressed and superposed is not greatly increased. And the obtained shorter pulse beam can be used for scientific research application such as nuclear data measurement.

The invention discloses aluminum nitride ceramic powder as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing the aluminum powder and the aluminum nitride powder according to the formula ratio through a ball-milling process, and sieving through a 20-mesh sieve to separate ball-milled beads and mixed powder; placing the mixed powder after ball-milling separation in a container enclosed by a carbon felt, and placing the container in an air atmosphere; and irradiating the mixed powder in the container by using a high-energy laser beam to induce the mixed powder to carry out combustion synthesis reaction, thereby obtaining the aluminum nitride ceramic powder. The aluminum powder and the aluminum nitride powder are used as raw materials, the aluminum nitride powder is prepared in one step by controlling the mass ratio of the aluminum powder to the aluminum nitride powder and directly carrying out a combustion synthesis method in the air, the technological process is simple, the period is short, the efficiency is high, large-scale production is easy, high-temperature and high-pressure equipment is not needed, the production cost is reduced, and the production safety is improved. And the combustion synthesis reaction is initiated by utilizing the laser high-energy beam, an ignition source is not needed, and the purity of the prepared aluminum nitride powder is higher.

The invention discloses equipment and a method for manufacturing a heterostructure part through a wire and powder composite additive, and belongs to the technical field of advanced material preparation through high-energy beam rapid forming. The equipment for manufacturing the heterostructure part through the wire and powder composite additive material is composed of a robot, a control cabinet, a 3D printing head, a powder feeder, a wire feeding system, a laser, a wire feeding clamping mechanism, a wire feeding driving mechanism, a control unit, a powder feeding quality sensor, an optical morphology CCD monitor and the like. Advantages of efficient fuse wire additive and high-precision laser powder feeding additive are integrated, real-time monitoring of the powder feeding amount can be achieved through a powder feeding system quality sensor, and the number of revolutions of a powder feeding disc can be controlled; through a molten pool morphology CCD monitoring system, the size of a molten pool is measured in real time, laser power changes are regulated and controlled, and closed-loop feedback control is achieved; the material components are more accurately regulated and controlled, the automation degree of the preparation process is high, and the material adding precision and efficiency are remarkably improved while the production cost is reduced.

The present disclosure provides an additive manufacturing apparatus. The additive manufacturing equipment comprises a volume-variable forming bin. The powder laying device is used for laying powder to be formed in the forming bin in the additive manufacturing stage; the high-energy beam generating device is used for generating a high-energy beam in an additive manufacturing stage so as to process powder to be formed; the gas washing device is used for carrying out gas washing operation on the forming bin in the gas washing stage; wherein the forming bin has a first volume corresponding to the additive manufacturing stage and a second volume corresponding to the gas washing stage, and the first volume is larger than the second volume. The additive manufacturing equipment can shorten the gas washing time and improve the equipment utilization rate.

The application discloses a kind of general semiconductor large-scale aluminum alloy vacuum chamber high-efficiency high-energy beam manufacturing method, which comprises the following steps: S1, the opening of each component of vacuum chamber is handled, and each component of vacuum chamber is fixed by argon arc welding by splicing welding;S2, the welding area of vacuum chamber is preheated by oxyacetylene flame spray gun, and the preheating area is cleaned by laser by pulse laser cleaning machine;S3, the inside and outside of vacuum chamber are deep fusion welded by laser-MIG composite welding;S4, the weld of the completed vacuum chamber is inspected.The application is preheated to 100-120 DEG C by flame spray gun to workpiece, the preheating area is cleaned by laser by pulse laser cleaning machine simultaneously, and the moisture and oil dirt and other impurities in the welding area are removed, so that the manufacturing of large-scale aluminum alloy vacuum chamber can be met, the manufacturing efficiency is greatly improved, and the welding deformation is reduced.

The utility model relates to the technical field of strip steel processing equipment, and discloses a strip steel production line silicon steel sheet weld joint on-line laser annealing device which comprises a strip steel processing table and a sliding frame, the strip steel processing table comprises two sets of supporting frames and a front-back adjusting seat, and the two sets of supporting frames are symmetrically arranged on the two sides of the bottom of the strip steel processing table; the front-back adjusting base is arranged on one side of the top of the supporting frame, and the sliding frame comprises a moving trolley and a laser gun. Strip steel can be clamped and fixed through the pressing hydraulic cylinder, the pressing plate, the strip steel machining table and the anti-skid table, the position of the laser gun can be moved through the sliding frame and the moving trolley, and laser is emitted to the upper surface and the lower surface of a welding seam through the connecting optical fiber, the laser generator and the laser gun. The directional reconstruction of the weld structure is realized through the high-energy beam heat source, so that the stability of the strip steel weld quality is improved, the phenomenon of strip steel weld fracture is reduced, the production cost is greatly reduced, and the production efficiency is improved.

The invention discloses a preparation method of a double-layer protective coating with a self-repairing characteristic, and aims to solve the problems that the bonding strength of a high-entropy alloy coating and a matrix is relatively low, and the long-term service stability is difficult to maintain. The preparation method comprises the following steps: 1, substrate pretreatment; secondly, the average atomic radius difference, the VEC, the mixed entropy and the mixed enthalpy of the high-entropy alloy multi-element system are calculated, and corresponding elementary substance powder is mixed and subjected to ball milling treatment; 3, performing cladding deposition on the mixed metal powder by adopting a high-energy beam deposition process; fourthly, the high-entropy alloy coating is ground, polished and cleaned; and fifthly, an oxidation process or a nitriding process is adopted for forming an oxidation layer or a nitriding layer on the high-entropy alloy coating in situ. The double-layer protective coating with the self-repairing characteristic provided by the invention has double-layer protection of the high-entropy alloy coating with excellent corrosion resistance and the in-situ oxidation / nitridation layer, and the high-entropy alloy coating forms a stable intermetallic compound by utilizing dilution of a matrix in design, so that the matching property of the coating and the matrix is improved.

The invention relates to a deep damage additive repairing method based on light beam-melt viscosity coupling regulation and control, and belongs to the technical field of additive manufacturing. According to the light beam-melt viscosity coupling regulation and control additive repairing technology, self-adaptive filling repairing is achieved through the high-viscosity melt, repairing can be completed without reducing the diameter of a beam spot or reducing the power of a high-energy beam, material filling is rapid, and repairing is efficient. In the series of steps, the energy of the high-energy beam is reasonably distributed, more energy is used for melting the raw materials, and the rest of energy is used for melting and repairing the surface, so that interface metallurgical bonding is guaranteed, and a heterogeneous interface is prevented from being excessively melted and burnt. Compared with an existing additive repairing technology, the method is easy and convenient to operate, the whole-process repairing process only needs manual intervention in the contour scanning process and the rule planning process, self-adaptive filling repairing is mainly conducted through high-temperature and high-viscosity melt after additive repairing is conducted, the application range is wide, and multiple defects can be rapidly responded and repaired.

The invention relates to a method for producing a component (1a; 1b) in an additive manufacturing process, in which the component (1a; 1b) is formed by layer-by-layer application of a powder (P) using an application device (20) and selective melting of the powder (P) after the application of each layer (S) by means of a high-energy beam (LS) in the area of ​​the component (1a; 1b) to be produced up to a target height (H) of the component (1a; 1b), wherein a topography of a component surface (32) is captured on the side of the component (1a; 1b) facing the application device (20).

The invention discloses a micro-porous structure additive manufacturing method with thermal expansion graphite added, and belongs to the technical field of micro-porous structure additive manufacturing. According to the method, thermal expansion graphite powder is added into additive manufacturing powder as a high-efficiency pore-forming agent, and thermal expansion graphite with certain initial expansion temperature, particle size, complete expansion temperature and expansion multiplying power is selected according to the difference of the particle size of matrix powder, the additive manufacturing temperature and the internal pore size and porosity of a part; the method comprises the following steps: preparing thermal expansion graphite, uniformly mixing the thermal expansion graphite with matrix powder according to a certain proportion for additive manufacturing, melting the matrix powder by using an external high-energy beam under a certain temperature condition, expanding the volume of the thermal expansion graphite, and directly processing a target part with a micro porous structure. According to the method provided by the invention, the design and control of the pore size and porosity of the final workpiece are realized, the technical vacancy of the additive manufacturing technology in the field of micro porous structure part preparation is made up, and the method has remarkable technical advantages and wide application prospects.

This invention provides a method for eliminating bonding interface defects, a module for eliminating bonding interface defects, a semiconductor device processing apparatus, and a computer-readable storage medium. The method for eliminating bonding interface defects includes the following steps: locating at least one bubble defect on the bonding interface of a grain-wafer bond; and applying a pulsed high-energy beam from the grain side of the bonding interface to the at least one bubble defect to form at least one venting micro-via penetrating the corresponding grain above the bubble defect, wherein the peak power of the pulsed high-energy beam is not less than 10 kW, and its single-pulse energy is not greater than 1 mJ.

This invention relates to the field of metal surface strengthening technology, specifically a method for in-situ generation of TiC-TiN ceramic materials using a titanium-containing substrate and an atmosphere-assisted high-energy beam. This method utilizes the titanium-containing substrate itself as a titanium source. Under a specific atmosphere, high-energy beam irradiation causes the Ti element in the substrate to react in-situ with C and N elements in the atmosphere, generating a TiC and / or TiN ceramic strengthening layer on the substrate surface. Specifically, the method includes: pretreating the titanium-containing substrate; placing it in a reaction chamber and introducing an auxiliary gas containing C and / or N; scanning and irradiating the substrate surface with a high-energy beam, controlling process parameters to allow Ti to react with C and N, generating a 0.5-1.2 mm thick metallurgically bonded strengthening layer. The advantages are: this invention eliminates the need for additional titanium powder or carbon powder, resulting in a simple and low-cost process; the strengthened layer exhibits high bonding strength with the substrate with no risk of detachment; and it significantly improves the surface hardness, wear resistance, and corrosion resistance of the substrate, making it widely applicable in military, aerospace, and marine equipment fields.

The invention relates to a thin-wall complex flow channel liquid cooling structure high-energy beam welding method, and belongs to the field of metal materials and processes. Manufacturing an assembling and shape correcting clamp; the fixed base is horizontally placed, and the thin-wall complex flow channel liquid cooling structure is horizontally placed on the upper surface of the fixed base; horizontally placing a cover plate on the upper surface of the thin-wall complex flow channel liquid cooling structure; a pressing plate is horizontally placed on the upper surface of the cover plate; the pressing plate is fixedly connected with the fixed base through a tensioning screw; spot welding is conducted on the cover plate, and after spot welding is completed, the pressing plate is dismantled; formally welding the cover plate; after welding is completed, stress relief annealing treatment is conducted at high pressure and high temperature, and forming is conducted; according to the method, the welding seam is smooth and good in forming after welding, the internal quality meets the QJ20645-2016 requirement, the pressure of the laser welding seam is maintained for 60 min under 0.8 MPa, the laser welding seam is fatigued for 1000 weeks under 0.8 MPa, the leak rate is smaller than or equal to 1.0 * 10 <-10 > Pa.m < 3 > / s, the strength coefficient of a laser welding joint is larger than or equal to 0.9, and the flatness is smaller than or equal to 0.2 mm.

The present invention belongs to the technical field of surface treatment of rail reinforcement layers and provides a high-energy-density irradiation process for treating rail reinforcement layers. The high-energy-density irradiation process for treating rail reinforcement layers includes inspecting the rails, irradiating the reinforcement layer surface with high-density energy, heat preservation, and testing. This process can eliminate or reduce the tensile stress on the surface of the rail reinforcement layer and refine the coarse-grained structure on the surface of the rail reinforcement layer, thereby improving the toughness and fatigue resistance of the reinforcement layer structure, preventing the reinforcement layer from peeling off due to internal cracks during the external compressive stress cycle, and greatly extending the service life of the rails after being treated with high-energy instant quenching technology. This process plays a vital role in ensuring the quality and safety of the entire high-energy beam reinforced rail.

A method of forming a build platform for a powder bed melt additive manufacturing process. The method includes directing a high energy beam at a first energy level to irradiate a bed of fusible powder and form a first layer that constructs the platform. The method further includes forming subsequent initial layers of the build platform, each subsequent layer being formed by directing a high energy beam to irradiate the distributed layer of fusible powder to form one of the subsequent initial layers of the build platform. The energy level of the high energy beam increases from the first energy level for successive layers in the subsequent initial layers. The build platform may be a sintered build platform in which the degree of sintering increases from the bottom layer toward the top layer.

To provide a non-chemically amplified resist composition excellent in sensitivity and limiting resolution in photolithography using a high energy beam, and a pattern forming method using the resist composition.SOLUTION: The resist composition comprises a polymer containing a repeating unit having a hypervalent iodine structure represented by formula (1), a carboxy group-containing compound, and a solvent.SELECTED DRAWING: None

Provided is: a curing reactive silicone composition having sufficient toughness and pressure sensitive adhesive strength to temporarily secure various substrate even in an uncured state, having heat meltability and excellent moldability of a sheet or the like, and that can be quickly cured by high energy irradiation to achieve high adhesive strength; a method of manufacturing a sheet thereof a cured product thereof that can achieve high adhesive strength by crimping; and applications thereof. The curing reactive silicone composition comprises: (A) an MQ resin; (B) a chain organopolysiloxane having at least two groups containing an aliphatic unsaturated carbon-carbon bond, and a degree of siloxane polymerization within a range of 80 to 3000; (C) an organohydrogenpolysiloxane; and (D) a hydrosilylation reaction catalyst activated by a high energy beam. The amount of component (A) is more than 55 mass % and less than 90 mass % of the sum of components (A) to (C).

The application discloses a kind of fast energy regulation system and proton radiotherapy device for proton radiotherapy, belong to medical equipment technical field, including first quaternary iron, energy switching device and momentum cooling device sequentially arranged on energy beam transmission line, energy switching device includes sequentially connected first impact magnet, second quaternary iron, second impact magnet, energy switching energy reducer, third impact magnet and fourth impact magnet, first impact magnet is connected with first quaternary iron, fourth impact magnet is connected with momentum cooling device, energy switching energy reducer is one-piece wedge structure, it includes low-energy beam energy reduction zone, ideal beam energy reduction zone and high-energy beam energy reduction zone.It is simple in structure, energy switching time is short, transmission efficiency is high, and it can safely and efficiently transmit energy divergence less than 15%, energy is 70-230MeV proton, and transmission efficiency can reach 5%.

This invention relates to the field of metal material processing technology, specifically to a method for optimizing the composition of high-strength and high-toughness aluminum-lithium alloys for additive manufacturing using rare earth synergistic refinement. The method includes the following steps: obtaining aluminum-lithium alloy matrix powder, and separately obtaining CeH2 powder as a cerium source and ZrH2 powder as a zirconium source as reaction precursors; uniformly mixing the CeH2 powder, ZrH2 powder, and aluminum-lithium alloy matrix powder to form a composite powder raw material; during electron beam additive manufacturing, based on the ultra-high temperature and ultra-high cooling rate environment provided by the molten pool formed on the composite powder raw material by high-energy beam scanning, CeH2 and ZrH2 decompose into highly active Ce atoms and Zr atoms, and promote the in-situ synthesis reaction between the two and molten aluminum to generate a (Ce,Zr)Al3 nanocomposite phase. This invention achieves spatiotemporal synchronization of refined phase generation and solidification nucleation by using CeH2 and ZrH2 as precursors to generate the (Ce,Zr)Al3 nanocomposite phase.

A high voltage inductive adder is disclosed. An inductive adder may include a plurality of switch boards that each include a plurality of switch boards that include a plurality of solid state switches. These switch boards may be stacked one upon another. The inductive adder may include a transformer comprising a plurality of toroid-shaped transformer cores disposed on a corresponding one of the plurality of switch boards; and a transformer rod that extends through the plurality of switch boards and the plurality of transformer cores. The inductive adder may include an output electrically coupled with the transformer rod. And each of the plurality of circuit boards, for example, may include a tailbiter circuit electrically coupled in parallel with the output.

The present invention discloses a light-energy-focusing vacuum 3D printing melt forming device and method. The device includes a vacuum chamber system for providing a vacuum environment, a light-energy-focusing system for utilizing external light energy to form a fixed high-temperature light spot within the vacuum environment, a powder-laying printing system for laying powder layer by layer within the vacuum environment and utilizing the high-temperature light spot for 3D printing, and a control system for realizing automatic operation of the entire device. The vacuum chamber system includes a chamber body, a vacuum pump, a chamber door, a lens mounting seat, a vacuum detection element, and a vacuum valve. The light-energy-focusing system includes a focusing lens, a light source, and a light shield. The powder-laying printing system is disposed within the chamber body and includes a powder pool mechanism, a powder-laying mechanism, and a planar motion mechanism. The device combines high-energy beam 3D printing melt forming with vacuum 3D printing, and can complete the vacuum light-energy sintering 3D printing process under ground conditions.

A three-dimensional structure is formed when layers of a material are deposited onto a substrate and scanned with a high energy beam to at least partially melt each layer of the material. Upon scanning the layers at predetermined locations at least a first segment overlapping a second segment and underlapping a third segment is formed.