371results about "Additive manufacturing processes" patented technology

The utility model discloses a 3D (three-dimensional) printing integrated manufacturing device, which is characterized in that a printing switching driving mechanism is used for switching a material attached in a material containing groove in a working state through a printing switching driving mechanism to form a forming curing layer through photocuring, so that different surface models of an integrated carrying platform can be constructed, namely, different working surfaces of 3D components can be subjected to 3D printing. And integrated and one-time printing construction is realized.

The invention discloses a 3D printing auxiliary arc-shaped mirror wall forming method for a flexible optical lens array. The method comprises the steps that an ideal optical model of the flexible optical lens array is established, and physical parameters of a forming material are obtained; performing multi-physical field coupling simulation on the whole forming process to predict and quantify an initial deviation field generated by physical deformation; according to the deviation field, a pre-distortion mold three-dimensional model capable of actively compensating deformation is generated through iterative calculation of a reverse topological optimization algorithm; printing a high-precision physical mold according to the model by using additive manufacturing equipment; injecting a liquid flexible material into the physical mold for curing and molding, and demolding to obtain a flexible optical lens array; according to the invention, active and high-precision control of forming deviation is realized, the product precision and research and development efficiency are improved, the manufacturing cost is reduced, and a set of standardized and intelligent solution is provided for precision manufacturing of complex flexible optical elements.

A robotic construction system for use in constructing a structure, the construction system including a base, a boom extending from the base, an articulated delivery head attached proximate an end of the boom, the delivery head including a nozzle configured to deliver a construction material and a controller configured to control movement of the boom and the delivery head to thereby move the nozzle and deliver construction material, wherein the boom moves with a slower dynamic response over larger distances and the delivery head provides a faster dynamic response over smaller distances.

The invention relates to the technical field of 3D printing, in particular to a curved surface in-situ 3D printing method and system for composite manufacturing, and the method comprises the steps: collecting surface images and corresponding scanning data of an object from a plurality of visual angles, generating a depth map, constructing a cost body, and further obtaining a reconstruction model; dividing into a plurality of strips, respectively clustering and merging according to similarity to obtain a plurality of partitions, and forming a quasi-plane; additive printing is conducted, according to the normal vector and the curved surface height of each partition, the normal vector deviation and the curved surface height compensation amount are calculated, the plane path is mapped to the quasi plane, an additive printing path is obtained, and additive printing is conducted on the printing target according to the additive printing path; and subtractive printing is conducted, specifically, the curvature of each partition is calculated, and according to the curvature of each partition, the gray value of the target printing position is adjusted to conduct subtractive printing. And the processing effects of consistent precision and accurate patterns can be obtained.

The invention discloses a single-material multi-mode assembly and an electronic additive printing method, and belongs to the technical field of additive manufacturing, and the method comprises the following steps: firstly, under the irradiation of first-wave-band ultraviolet light, forming an insulating flexible substrate by adopting a photocuring additive printing technology; carrying out photo-crosslinking on the insulating flexible substrate through a preset digital mask pattern to obtain a pattern, and obtaining an assembly precursor; and finally, differentiated irradiation is performed on different areas through second wave band ultraviolet irradiation, continuous adjustability of a single material from an insulation state to a metalloid state is achieved, and the programmable multi-mode electronic assembly with multi-element conductivity distribution is prepared. The method simplifies the technological process, reduces the manufacturing cost, improves the comprehensive performance and reliability of the device, improves the performance and manufacturing efficiency of the device, and is suitable for the fields of flexible electronic devices, wearable devices, micro-nano sensors and the like.

The invention discloses an ultra-high-speed motor bearing anti-deformation crown-shaped retainer and a manufacturing method, and belongs to the technical field of motor bearings. The super-high-speed motor bearing anti-deformation crown-shaped retainer is formed by printing functionally graded materials, the functionally graded materials comprise a hard-phase material and a soft-phase material, the hard-phase material is glass fibers, and the soft-phase material is nylon 66; the equivalent elastic modulus of the functionally graded material is continuously and gradually changed in the axial direction from the bottom of the pocket to the tail end of the lock claw, so that the elastic modulus of the bottom area of the pocket is higher than that of the tail end area of the lock claw, and elliptical deformation of the pocket and centrifugal deformation of the lock claw are cooperatively restrained. And active reconstruction of a rigidity field of the crown-shaped retainer is achieved, specifically, a tough phase is constructed in a locking claw area to absorb collision energy, a strengthening phase is formed in a pocket area to weaken stress concentration, a rigidity gradient is established at a connecting part to restrain the umbrella-shaped effect, and the crown-shaped retainer with the high toughness-gradient-high strength characteristics and the design method of the crown-shaped retainer are provided.

A user support includes a hood structure that is supported by a back frame structure of the user support. The hood structure may comprise a one-piece homogeneous polymer structure that is formed by an additive process. The hood structure may include solid structures and at least one porous lattice matrix that is integrally formed with the solid structures.

Items may be packaged for shipping or storage using additive manufacturing techniques, also known as three dimensional (3-D) printing. Packages made by such processes may be referred to as 3-D printed packages and may include packing material printed at least partially around the item(s) and / or an outer cover printed about at least a portion of an exterior of the packing material and / or the item(s). A packaging system may include a 3-D printer and a computing device communicatively coupled to the 3-D printer. The computing device may obtain a packaging model describing a package for one or more items. A print module of the computing device may include instructions to print the package at least partially about the item(s) according to the packaging model.

A color 3D printing method, a printing apparatus and a terminal device. The printing method includes acquiring an original three-dimensional model of an object to be printed; performing shell processing to the original three-dimensional model to generate an inner model and an outer model of the original three-dimensional model; performing slicing processing to the inner model and the outer model to generate multiple printing data corresponding one-to-one with each printing layer, the printing data including structural data representing the inner model in a printing layer, color data representing the outer model in the printing layer, and structural data representing the outer model in the printing layer; printing the object to be printed according to the printing data. The present method can distinguish between a background color and a surface color of the original three-dimensional model in a slice image, avoiding phenomena of not printing or misprinting.

An additively manufactured electronics packaging assembly including a build substrate formed from a plurality of additively printed layers. One or more additively printed electrical interconnects can be positioned within the plurality of layers. The assembly can include an electronics housing built along the build substrate. The electronics housing can include one or more additively printed walls extending around a component cavity and a housing lid enclosing and sealing the cavity. One or more additively printed electrical circuits can be included within the component cavity, which can be electrically connected with the additively printed electrical interconnects. One or more electronic components can be positioned within the cavity and can be electrically connected to the additively printed electrical interconnects. The additively printed electrical circuits can be used to indicate a leak in the additively manufactured electronics packaging assembly.

The invention relates to the technical field of light-weight wire harness and multi-material conformal additive manufacturing, and provides a light-weight conformal wire harness additive manufacturing method and a working device.A base body obtained after surface treatment is installed and fixed to a printing device, printing and laying procedures are imported, and the printing device is initialized; conformally printing a first insulating layer on the surface of the substrate; a first conducting layer is laid on the first insulating layer in a conformal wiring mode through a wiring unit; conformally printing a second insulating layer over the first conductive layer; conformally printing a first shielding layer on the second insulating layer; if the wire harness is a multi-layer conformal wire harness, repeating the process to complete conformal manufacturing of all other insulating layers, conductive layers and shielding layers; if the wiring harness is a single-layer conformal wiring harness, a packaging layer is directly printed in a conformal manner; and post-processing the multi-material conformal wire harness to complete the preparation of the conformal wire harness. The method has the advantages of being high in production automation degree, high in production efficiency, high in material utilization rate, good in production flexibility, environmentally friendly in manufacturing and the like.

The application discloses a micro-nano robot based on a flexible hinge, a driving method and a preparation method, the micro-nano robot comprises a flexible hinge and a bubble capturing structure connected with the flexible hinge, and the flexible hinge comprises a plurality of flexible sections and rigid sections which are alternately connected; when a certain sound field is applied, the flexible sections vibrate and deform, and the rigid sections do not deform; when the sound field is stopped, the flexible sections restore the initial shape; in a liquid environment, the bubble capturing structure is used for capturing bubbles, the bubbles resonate in a sound field environment and drive the bubble capturing structure to move, and the flexible hinge deforms in the sound field environment to capture particles in the liquid, change the moving direction of the micro-nano robot or change the moving speed of the micro-nano robot.

The invention relates to the technical field of aviation process equipment, in particular to an aviation part sample plate manufacturing method based on reverse scanning and 3D printing. According to the technical scheme, the aviation part sample plate manufacturing method based on reverse scanning and 3D printing comprises the following steps that S1, three-dimensional data collection and preprocessing are carried out, specifically, three-dimensional reverse scanning is carried out on the object surface of a target aviation part, and three-dimensional point cloud data of the object surface are obtained; before scanning, carrying out powder spraying treatment on a highly reflective or transparent area on the surface of the real object so as to ensure the integrity of scanning data; s2, real surveying and mapping model reconstruction and optimization: processing the three-dimensional point cloud data, reconstructing a real surveying and mapping three-dimensional model of the aviation component, and performing hole repair and fairing optimization on the model. The technical means of obtaining the real appearance by reversely scanning the real object and reconstructing the theoretical model according to the drawing and carrying out fitting correction are realized, the generated composite three-dimensional model ensures the accuracy.

The invention relates to a method for manufacturing a hybrid component made from at least two different materials, the method comprising the following steps: - providing a substrate made of a substrate material onto which at least one functional element is to be applied in a functional area of ​​the substrate, - creating a first functional layer made of a thermoset resin system on the substrate at least within the functional area of ​​the substrate, - applying at least one second functional layer made of a thermoplastic material onto the first functional layer, - wherein the thermoset resin system and the thermoplastic material are selected such that both form a metallurgical bond after consolidation, and - applying a thermoplastic material different from the substrate material to the substrate in the area of ​​the second functional layer.to produce the functional element on the substrate.

1. Use of a polymeric material in the production of a 3D article by additive manufacturing, the polymeric material comprising: a) at least one polyethylene PE having a density at 23°C, measured according to the EN ISO 1183-1:2019 standard, of at least 0.930 kg / m3, and a crystallinity, measured according to the EN ISO 11357-3:2018 standard, of at least 50% by weight; b) at least one solid filler F; and c) optionally at least one nucleating agent N, wherein the at least one solid filler F is a fibrous filler having an average aspect ratio (length / diameter) on a volume basis of 3 to 60, preferably 4 to 50.

The present application belongs to the field of additive manufacturing, and particularly discloses an additive manufacturing component height real-time regulation method and system, which comprises the following steps: obtaining a first height before printing and a second height after printing of a printing point; obtaining a current layer height sequence of the current printing point based on the first height and the second height of multiple printing points, wherein the current layer height sequence comprises layer height data of the current printing point and a plurality of historical printing points in sequence; determining a printing deviation value of the current printing point based on the current layer height sequence and a preset layer height; and realizing real-time correction of the printing height based on the relationship between a preset revision threshold and the printing deviation value. The present application can realize real-time and accurate regulation of the additive manufacturing component height.

The present disclosure provides a device manufacturing process comprising designing a mold for stereolithography resin printing, wherein the mold is configured to minimize distortion from pyrolysis and sintering, printing the mold from resin using stereolithography, pyrolyzing the mold to convert resin into carbon structure, filling the carbon structure with ceramic slurry, drying the ceramic slurry within the carbon structure, and thermally processing the carbon structure and ceramic slurry to decompose the carbon structure and sinter the ceramic slurry into consolidated ceramic part. The ceramic slurry may comprise hydroxyapatite or yttria-stabilized zirconia particles. The mold design may limit beam thickness and wall thickness to 0.6mm and account for isotropic shrinkage of approximately 50% during pyrolysis. Thermal processing may involve sintering at 1200°C for hydroxyapatite or 1450°C for yttria-stabilized zirconia to produce ceramic scaffolds with sub-millimetric channels and intricate lattice structures for biomedical applications.

The invention relates to a negative Poisson's ratio metamaterial enhanced seamless expansion joint design analysis method, which comprises the steps of collecting geometric construction parameters and mechanical property data of a negative Poisson's ratio metamaterial, and constructing a training data set; training a deep learning reverse design model and a mechanical property prediction model; the design parameters of the expansion joint device are optimized through a multi-objective optimization algorithm; an optimized expansion joint device is manufactured by adopting a 3D printing technology, the durability of the expansion joint device is evaluated by combining mechanical property data and a fatigue life prediction model, and iterative optimization is performed through a deep learning reverse design model. The expansion joint device has the beneficial effects that the impact resistance and the energy absorption capacity of the expansion joint device are remarkably enhanced through the design of the concave hexagonal honeycomb structure of the negative Poisson's ratio metamaterial and the nonlinear strain energy density model optimization geometric parameters.

This invention provides a method for forming vertical interconnect structures of curved multilayer circuits using 3D printing. This method enables the integrated forming of highly conductive interconnect structures with different features and smooth surfaces during the additive manufacturing of multilayer circuits. It also allows for the additive forming of arbitrary spatial structures on curved surfaces. This method offers high flexibility and is easily integrated into the additive manufacturing process of multilayer circuits. It can integrally form interconnect structures of various diameters and types, avoiding the problems of existing technologies that require switching between multiple methods and the inability to form certain features. Furthermore, the printing method allows for the formation of spatially irregular metal structures on existing curved circuit boards, further expanding circuit functionality and enabling the fabrication of miniature antennas and sensors.

A component for a vehicle interior comprising a composite structure is disclosed. The composite structure may comprise a cover and an intermediate layer and a base; the intermediate layer provides a compressible layer between the cover and the base; the intermediate layer and the base and / or the cover may comprise a mono-material; the intermediate layer may comprise a structure / pad formed by molding / injection molding and configured to provide comfort to an occupant of the vehicle interior (e.g. to simulate performance of conventional foam material); the mono-material may be configured to facilitate recyclability of the composite structure; the mono-material may comprise a polymer material such as in polyolefin group or a thermoplastic elastomeric group or an elastomeric group or a polymer family compatible as the mono-material to facilitate recycling of the composite structure. A method of manufacturing the composite structure is also disclosed; the method may provide for improved efficiency.

Electric components including coils and methods to fabricate the same by 3D-printing are disclosed. The method includes: 3D printing a magnetic material to form a magnetic channel comprising a magnetic core of the coil device; 3D printing a conductive material to form a conductive channel, including conductive windings of the coil device with turns surrounding the magnetic core; and 3D printing a non-magnetic electrically insulating material to form electrical insulation between the turns of the conductive windings of the coil device. In some embodiments functional structures of the electric component, including the turns of the conductive windings of the coil and the electrical insulation between the turns, are each printed with minimal in-layer feature size of at least two voxels of the 3D-printing. Some embodiments facilitate 3D-printing of flattened coil devices having low aspect ratio between their lengths along their magnetic axes and their widths perpendicular thereto.

The invention discloses an all-fiber integrated detection ablation diagnosis and treatment instrument and a preparation method, and belongs to the field of fiber ultrasonic sensors and laser ablation devices. Comprising a double-clad optical fiber, a dielectric film, a sensing cavity and a micro-focusing cone. The double-clad optical fiber is used for transmission of probe light and ablation laser, the dielectric film and the sensing cavity jointly form a Fabry-Perot (FP) cavity to sense ultrasonic signals, and the micro-focusing cone provides an ultrasonic focusing effect. The problems that an existing optical fiber detection ablation device depends on multiple fibers and is complex in structure are solved, and the problems that an existing hollow cantilever structure optical fiber ultrasonic sensor is low in sensitivity and low in frequency band are solved.

A cooling plate arrangement (10) for cooling a battery storage device (204) of an at least partially electrically powered motor vehicle (200) is described, wherein the cooling plate arrangement (10) comprises: a first outer cooling plate (12) made of a metal; a second outer cooling plate (14) made of a metal, in particular the same metal; and an intermediate layer (16) made of an intermediate layer material (16m) arranged between the two outer cooling plates (12, 14). The intermediate layer (16) is provided to have at least one channel-like recess (18) which is bounded by the first cooling plate (12) and the second cooling plate (14). Furthermore, a method for manufacturing such a cooling plate arrangement (10) and a motor vehicle with such a cooling plate arrangement (10) are described.

An outer ring of a slewing bearing of the photocuring three-dimensional printing device is fixed to a workbench, a supporting cylinder is fixed to an inner ring of the slewing bearing, a material groove is formed in the top end face of the supporting cylinder, one side of the material groove is hinged to the supporting cylinder through a hinge shaft, and the material groove can rotate around the hinge shaft; when the printing platform carries the model to move upwards, the end, away from the hinge shaft, of the trough can be driven to move upwards, and the trough inclines. A driving wheel is arranged on a ball screw of the transmission device, and a driven wheel connected with the driving wheel is arranged on the inner ring, so that the ball screw can drive the inner ring to rotate and drive the supporting barrel and the trough to rotate synchronously. The invention further discloses a photocuring three-dimensional printing method. The servo motor for driving the ball screw to rotate is also used as the motor for rotating the trough, so that the control system is simplified. And when the model moves upwards, an included angle is formed between the curing layer and the horizontal plane, so that a gap is formed between the curing layer and the release film until the curing layer is completely separated from the release film.

This invention discloses a fabrication process and control method for a free-curvature bionic artificial muscle fan blade, belonging to the field of bionic artificial muscle fan blade technology. It involves mixing sodium alginate, a natural polymer, with an ionic liquid to prepare a biomass gel electro-actuated membrane with high output force density and high strength at room temperature. A biomass gel conductive ink, made by blending gallium indium tin alloy with sodium alginate powder, is used as the electrode film. The resulting artificial muscle fan blade exhibits high energy conversion efficiency, low starting voltage, fast response speed, and higher structural strength at room temperature. Finally, the fan-shaped electrode is divided into several regions, which can be independently powered to control the curvature effect. This invention provides a simple fabrication process and control method for a free-curvature bionic artificial muscle fan blade, with stable structure, rapid deformation, and strong controllability, offering new ideas for the research and application of artificial muscle devices.

A method of additive manufacture is disclosed. The method may include restricting, by an enclosure, an exchange of gaseous matter between an interior of the enclosure and an exterior of the enclosure. The method may further include running multiple machines within the enclosure. Each of the machines may execute its own process of additive manufacture. While the machines are running, a gas management system may maintain gaseous oxygen within the enclosure at or below a limiting oxygen concentration for the interior.

The present invention concerns a method of curing a composition comprising a cationically-polymerizable compound and a photoinitiator of formula (I): the method comprising irradiating the composition with at least one light source having a maximum output wavelength in the range of 350 to 460 nm, the obtained cured product, a method for the preparation of a 3D-printed article comprising said method and the obtained 3D printed article.

The present invention relates to the field of additive manufacturing, and more specifically to an SLA and DLP hybrid process additive manufacturing splicing method, comprising the following steps: S1: reading a test slice image and performing power modulation on a DLP optical projection system and an SLA galvanometer scanning system; S2: judging whether the curing depths of the DLP optical projection system and the SLA galvanometer scanning system are consistent, and adjusting the powers of the DLP optical projection system and the SLA galvanometer scanning system; S3: dividing a DLP projection working area and an SLA scanning working area; S4: calculating, based on the DLP projection working area and the SLA scanning working area, a DLP projection splicing overlap area and a DLP and SLA curing boundary splicing overlap area; S5: planning a DLP and SLA hybrid process forming path based on the DLP projection working area, the SLA scanning working area, the DLP projection splicing overlap area, and the DLP and SLA curing boundary splicing overlap area; and S6: the DLP optical projection system projects according to the process forming path, and the SLA galvanometer scanning system scans according to the process forming path.

A method of additive manufacture is disclosed. The method may include restricting, by an enclosure, an exchange of gaseous matter between an interior of the enclosure and an exterior of the enclosure. The method may further include running multiple machines within the enclosure. Each of the machines may execute its own process of additive manufacture. While the machines are running, a gas management system may maintain gaseous oxygen within the enclosure at or below a limiting oxygen concentration for the interior.

This invention relates to a printed model and preparation method based on gradient offset non-contact support, comprising the following steps: adjusting the Z-axis offset of the supported model to obtain a first support with a single offset; using the Z-coordinate of the minimum point on the top surface of the first support as a reference, subtracting the Z-coordinate values ​​of all points on the top surface of the first support from the Z-coordinate value of the minimum point with the smallest distance to obtain a series of height differences, denoted as Δh; using the formula Znew=Z+kΔh, calculating all Z-coordinate values ​​Znew based on the Z-coordinate values ​​of all points on the top surface of the first support, the height difference Δh, and the gradient support ratio coefficient k, to obtain a gradient non-contact support surface, wherein there is a gradient gap layer between the gradient non-contact support surface and the supported model; performing an AND operation between the gradient non-contact support surface and the first support to obtain a gradient non-contact second support; combining the second support and the supported model and importing them into a 3D photopolymerization printer, and printing the printed model based on gradient offset non-contact support layer by layer using paste.