594results about "Additive manufacturing processes" patented technology

Provided is an integrated probe pin that includes an upper plunger having a first tip adapted to come into contact with a circuit to be inspected to transmit and receive electrical signals to and from the circuit to be inspected; a lower plunger having a second tip adapted to come into contact with an inspection circuit to transmit and receive the electrical signals to and from the inspection circuit; and an elastic part located between the upper plunger and the lower plunger to elastically support the upper plunger and the lower plunger, wherein the upper plunger, the lower plunger, and the elastic part are manufactured as an integral body using 3D printing and made of one or more metal materials.

The invention provides an all-solid-state battery three-dimensional electrode preparation method based on aerosol jet printing, and the method comprises the following steps: constructing a three-dimensional porous frame by using a conductive skeleton material through an aerosol jet printing technology; depositing an active material and a solid electrolyte on the surface of the frame layer by layer to form a gradient distribution layer; generating an interface transition layer by adopting ultraviolet curing or rapid heat treatment; and in combination with a closed-loop feedback control system, deposition parameters are dynamically adjusted. A conductive active material and a solid electrolyte are uniformly distributed on the surface of a three-dimensional porous framework in a layer-by-layer deposition manner through an aerosol jet printing method, and the solid electrolyte and an electrode material form a close contact interface by accurately controlling a jet path, a nozzle diameter and a material deposition rate; the interface side reaction easily caused by traditional high-temperature sintering is eliminated, and the interface impedance is reduced; and furthermore, the transmission efficiency of the lithium ions at the interface is improved through an ultraviolet curing or rapid heat treatment process.

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.

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 provides a negative Poisson's ratio lattice-carbon fiber bundle synergistically reinforced composite structure and a preparation method, and belongs to the technical field of new energy automobile impact protection structures. The negative Poisson's ratio lattice-carbon fiber bundle synergistically-reinforced composite structure is characterized in that a negative Poisson's ratio lattice is composed of a plurality of concave negative Poisson's ratio cell elements, in each concave negative Poisson's ratio cell element, two horizontal cell walls and four inclined cell walls form a closed concave hexagonal structure, and the left side and the right side of the outer portion of each concave hexagonal structure are respectively provided with a negative Poisson's ratio lattice and a negative Poisson's ratio lattice; a horizontal connecting cell wall is arranged at the joint of each of the two inclined cell walls; the base body is located in a gap of the negative Poisson's ratio crystal lattice; the plurality of carbon fiber bundles are dispersed in the matrix, and the carbon fiber bundles are mutually isolated. The negative Poisson's ratio lattice and carbon fiber bundle double-reinforcement phase is introduced, the synergistic reinforcement effect of reinforcement phases of different scales is exerted, and reinforcement is carried out in the aspects of limiting matrix deformation flow and improving material damage and failure.

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.

The invention relates to the technical field of sulfate system nickel electrodeposition, in particular to a nickel electrodeposition starting sheet rapid machining device and method.The machining device comprises a feeding mechanism used for conveying nickel foil and copper foil; the machining device further comprises a laser cutting mechanism, an additive printing mechanism and a welding mechanism. In the working state, the feeding mechanism conveys nickel foil to the laser cutting mechanism, the laser cutting mechanism cuts the nickel foil to form square nickel sheets, and the square nickel sheets are conveyed to the additive printing mechanism through the mechanical arm. The feeding mechanism conveys a copper foil to the welding mechanism, the copper foil is welded to a tab of a square nickel sheet, and then a frame used for supporting a nickel electrodeposition starting sheet is formed through the additive printing mechanism. According to the invention, the function of efficiently processing the nickel electrodeposition starting sheet is realized, and the problems of time consumption, labor consumption and incapability of automation caused by complex procedures such as electrodeposition, stripping, cutting, embossing correction, lifting lug shearing, lifting belt riveting and cleaning on a starting sheet in the existing starting sheet manufacturing process are solved.

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 present disclosure relates to the field of protein-based materials, and in particular, to a protein eutectogel prepared with natural deep eutectic solvents and one or more plant proteind, methods of making and uses thereof.

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 present invention generally relates to methods and apparatuses adapted to perform additive manufacturing (AM) processes and the resulting products made therefrom, and specifically, to AM processes that employ an energy beam to selectively fuse a base material to produce an object. More particularly, the invention relates to methods and systems that use reactive fluids to actively manipulate the surface chemistry of the base material prior to, during and / or after the AM process.

The invention relates to the technical field of biomedical material manufacturing, and particularly discloses a gradient composite scaffold 3D printing process based on AI topological optimization, which comprises the following steps: a) based on medical image data of a patient, generating a digital model with porosity gradient distribution of 20-200 [mu] m and PCL / MCC material proportion gradient change through AI topological optimization; b) a double-nozzle FDM system is adopted to implement gradient printing, the layer thickness is 50 microns, the material switching frequency is 20 Hz, and the gradient resolution is 5% / layer; c), an electrostatic spinning nanofiber layer is deposited after FDM printing of each layer, the fiber diameter is 500 + / -50 nm, and the deposition density is 10-20 g / m. The method has the beneficial effects that through finite element analysis verification, the AI topological optimization enables the matching degree of the porosity and the component gradient of the stent and the natural bone to be greater than 90%, the mechanical distribution is more uniform, and the stress concentration is avoided; by adopting a double-nozzle FDM (20Hz switching frequency) and electrostatic spinning composite process, the interlayer shear strength is improved to 5.8 MPa, and the problem of traditional interface layering is solved.

Additively manufactured objects with exposed supports and associated methods are provided. In some embodiments, a method includes receiving one or more additively manufactured objects that are coupled to a plurality of support structures, where each support structure includes an exposed shoulder region that is accessible to an energy beam of a trimming system. The method can include identifying the locations of the exposed shoulder regions of the plurality of support structures, and directing the energy beam of the trimming system to the locations of the exposed shoulder regions of the plurality of support structures to cut at least partially through the exposed shoulder regions of the plurality of support structures.

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.

The invention belongs to the technical field of biomedical engineering and tissue engineering, and particularly relates to an acellular matrix modified bionic micro-fluidic organ chip constructed by 3D printing composite near-field direct writing as well as a preparation method and application of the bionic micro-fluidic organ chip. According to the bionic micro-fluidic organ chip prepared by the invention, the microstructure and physiological similarity of a model are remarkably improved, the problems of insufficient bionic property, single cell and the like at present are solved, and the preparation method is simple, is suitable for batch production and solves the problem of high production cost. The invention provides a new technical direction for the construction of the bionic organ model.

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.

A micro-nanoscale additive manufacturing method, and a patterning method. The additive manufacturing method uses an electric field to control directional movement of a charged dispersed phase in a gas. The charged dispersed phase passes through hollow channels in a hollow pattern layer on a substrate, and moves and builds up on the substrate, forming a printed pattern having a smaller feature size than that of the hollow channels. The substrate is an insulating substrate, the electric field strength value at the printing position is controlled to be not lower than 15000 V / cm, and the electric field strength direction is a positive direction or a negative direction.

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.

The invention relates to the technical field of medical instruments, in particular to a medical magnesium alloy anchor and a preparation method thereof.The technical scheme includes that the medical magnesium alloy anchor comprises an anchor material, and the anchor material is a magnesium alloy anchor outer structure support formed by at least one of zirconium dioxide prepared through 3D printing, polycaprolactone and PLGA; the composite amorphous alloy prepared from the other three kinds of magnesium, zinc and calcium alloy powder is filled in pores of the support, and finally surface treatment is carried out on the surface of the anchor. Compared with a traditional magnesium alloy anchor nail, a stable supporting structure is provided for the anchor nail by means of the 3D-printed outer structure support and the internal high-strength amorphous composite magnesium alloy, the structural stability after implantation can be effectively maintained through the structural design, and the stability of the anchor nail is improved. The instant loss of mechanical properties caused by pitting corrosion cannot occur after corrosion, and the problems of structural integrity damage, deformation, displacement and the like possibly caused by early corrosion of a traditional anchor in a bone are solved.

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.

Systems for manufacturing objects are provided herein. In some embodiments, a system includes at least one sensor and at least one energy source configured to output energy. The system can further include a processor and a memory operably coupled to the processor and storing instructions that, when executed by the processor, cause the system to perform operations including receiving, from the at least one sensor, sensor data of an additively manufactured dental appliance having a plurality of appliance portions. The operations can further include determining, based on the sensor data, a location of a subset of the appliance portions on the additively manufactured dental appliance. The operations can further include applying the energy from the at least one energy source to the subset of the appliance portions so as to selectively modify one or more material properties of the subset of the appliance portions.

The present invention discloses a method and a micro-nano injection needle for manufacturing a micro-nano injection needle by a casting deposition self-sealing method. The manufacturing method includes: preparing an unbonded biological vein injection needle and an injection needle cover plate; replicating the micro-nano structure of biological setae veins by a casting method to manufacture a biological vein micro-nano injection needle substrate: depositing a polymer on the biological vein micro-nano injection needle substrate by a polymer deposition method to self-seal and form a biological vein injection needle nano-channel, and obtaining an unbonded biological vein injection needle; casting the injection needle cover plate mold to obtain an injection needle cover plate; aligning and bonding the unbonded biological vein injection needle and the injection needle cover plate to obtain a micro-nano injection needle. The present invention discloses a method and a micro-nano injection needle for manufacturing a micro-nano injection needle by a casting deposition self-sealing method. A micro-nano cross-scale injection needle nano-channel is obtained by replicating the micro-nano structure of biological setae veins by a casting method; an injection needle nano-channel is obtained by a polymer deposition method; the micro-nano channel of the biological vein injection needle is sealed by an oxygen plasma-assisted bonding method to obtain a micro-nano injection needle.

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.