248 results about "3d print" patented technology

The application is suitable for the field of 3D printing technology, and provides a 3D printing Z-axis compensation method and device, electronic equipment and storage medium, wherein the method mainly comprises the following steps: traversing all triangular meshes spliced on a 3D model to form the 3D model; slicing the 3D model layer by layer and obtaining all slice images; selecting an Nth layer and an N+Mth layer slice image; comparing pixel gray values of the Nth layer and the N+Mth layer slice image to obtain a gray value difference area as a to-be-processed area of the N+Mth layer slice image; performing gray value reduction processing on pixels in the to-be-processed area of the N+Mth layer slice image; and storing the processed slice image data in a storage unit. The application can reduce the generation of secondary thickness exceeding the layer thickness when the current layer is solidified and formed, thereby improving the model printing precision.

This invention discloses a metasurface design method based on two-degree-of-freedom 3D printing, belonging to the field of advanced electromagnetic devices and electromagnetic wave manipulation technology. The metasurface structure is integrally composed of a dielectric substrate and a series of three-dimensional resonant units with independently adjustable height and lateral dimensions. The core of the design method lies in: first, determining the reference height of the unit based on the target phase; then, optimizing the height using resonance conditions to improve transmission efficiency; and finally, independently adjusting the lateral dimensions of the units to achieve precise phase matching and structural reinforcement. This invention deeply integrates the forming freedom of 3D printing with the principle of electromagnetic resonance, solving the problems of low efficiency, reliance on semiconductor processes, and poor structural mechanical stability in traditional metasurface designs. It enables the rapid fabrication of high-performance, highly reliable, and low-cost terahertz wavefront manipulation devices, with broad application prospects in 6G communication, terahertz imaging, and sensing systems.

Systems and methods are provided for improving existing 3D FDM printing technologies. A 3D printing process and a 3D printer are also provided. The 3D printer provides stronger adhesion between the layers of printed parts than current printers. This enhancement increases the tensile strength of 3D printed components in the direction perpendicular to the layers.

The application provides a 3D printing Al-Zn-Mg-Sc alloy part and a preparation method and a terminal product thereof, and belongs to the technical field of 3D printing. The method for 3D printing the Al-Zn-Mg-Sc alloy part comprises the following steps: providing Al-Zn-Mg-Sc alloy powder and a substrate; based on a preset three-dimensional model, the Al-Zn-Mg-Sc alloy powder is subjected to 3D printing on the surface of the substrate by adopting a laser powder bed fusion method, wherein the substrate is subjected to layer-by-layer progressive preheating in the 3D printing process, and a gradient gradual interlayer rotation angle control is adopted, so that a printing blank is obtained; and the printing blank is subjected to heat treatment, so that the 3D printing Al-Zn-Mg-Sc alloy part is obtained.

The application discloses a concrete 3D printing complex pattern path motion control method, medium and equipment, and belongs to the field of 3D printing.The application fully considers the specific line width when concrete is discharged, expands the width of the printing path line segment to form a rectangular printing area, determines the printing coverage by calculating the coordinates of the four vertexes of the rectangular section, judges the overlapping and intersecting area, and optimizes the printing path.The application is aimed at some special parts with complex paths, small printing line width and small line width ratio, and the printing path and the feeding coefficient are calculated, controlled and optimized, so that the concrete component finished product obtained by printing is more fine in details, more perfect in smoothness, and more practical and appreciable in works.

This invention discloses a method for combining CNC high-precision high-temperature resistant insulating substrate engraving with tin-copper alloy printed circuit 3D printing, belonging to the field of high-power circuit carrier manufacturing technology. The invention uses 99.7% alumina ceramic or silicon nitride ceramic as the insulating substrate, achieving high-precision structural forming of ±0.005-0.025mm through CNC layer engraving. Sandblasting, roughening, sensitization, activation, and pre-plating surface modification enhance interfacial adhesion. CuSn10 tin bronze is used as the printing material, and the circuit is formed by SLM or FDM 3D printing at a sintering temperature of 850-900℃, achieving a forming density ≥98.71%. Through stepped heating sintering and high-temperature resistant inorganic adhesive curing, the ceramic substrate and tin-copper alloy circuit are integrated. The circuit carrier obtained by this invention has a long-term temperature resistance of ≥1600℃, a volume resistivity of ≥10¹⁴Ω·cm, a current carrying capacity of 15.6A for 3mm lines, and an adhesion strength retention rate of ≥95% after 1000 thermal cycles. The temperature rise is 15~20℃ lower than that of traditional PCBs. It is suitable for high-load, high-current scenarios such as industrial power supplies and new energy power control. It is compatible with processes and has complete industrial support, and has significant technical and economic feasibility.

The utility model discloses a kind of FDM3D printing workpiece post-processing alcohol atomization box, it is related to 3D printing equipment field, including shell, the inside of shell is provided with inner cabin, the bottom center position of inner cabin is provided with carousel, rotation tray is provided on the carousel, the 3D printing workpiece needing processing is placed on the rotation tray, inner cabin inner wall is provided with multiple atomizing heads, high-pressure water pump and water tank are provided in the bottom of shell inner chamber, alcohol is placed in water tank, the water outlet end of high-pressure water pump is connected with high-pressure water pipe, high-pressure water pump is cooperated with high-pressure water pipe and the high-pressure liquid generated is delivered to atomizing head, after pressurization, alcohol is entered into several atomizing heads by high-pressure water pipe, so that workpiece surface is softened smooth, the surface polishing of printing workpiece is realized, air pipe is blown into atomization box after dry air, so that workpiece surface is rapidly dried, effectively solve the surface polishing problem of printing workpiece, improve polishing efficiency.

The application discloses an integrated 3D printing galvanometer system and belongs to the field of additive manufacturing. Aiming at the problems existing in the traditional 3D printer galvanometer, such as large volume caused by the outer shell and the cooling system, light field splicing deviation caused by installation and debugging difference, high cooling power consumption, pipeline complexity and easy leakage, and condensate water damage to equipment in high humidity environment, etc. The system of the application contains a galvanometer, a laser head array, a fixed base plate and other components. The galvanometer contains X and Y sub-galvanometers arranged vertically, and a laser head. Each component is fixed on a high-precision fixed base plate. The shell is sealed, one side of the metal surface is provided with an inner and outer fan and a cooling device (such as a semiconductor heat sink), and a detachable and replaceable desiccant box is further arranged. The application has the beneficial effects of compact volume, low energy consumption, high splicing precision and condensation prevention, and is suitable for medium and large 3D printers using multiple galvanometers.

This invention relates to the field of micro / nano-structure-enhanced heat transfer surfaces, providing a 3D printing-assisted method and product for fabricating multi-scale three-dimensional metal surface structures. The method includes: fabricating a micron-level high-precision three-dimensional structure mask using 3D printing technology; the three-dimensional structure mask includes a cutout portion and a body portion; the cutout portion matches a three-dimensional structure model; performing material conversion on a metal substrate with the three-dimensional structure mask fixed thereon to obtain a target metal, wherein the metal substrate may be machined beforehand; the target metal surface has a three-dimensional structure matching the three-dimensional structure model. The 3D printing-assisted method for fabricating multi-scale three-dimensional metal surface structures provided by this invention improves the precision of the metal structure by increasing the precision of the template, fabricating multi-scale, multi-material heat transfer structures with micron-level precision and complex structures on the metal surface, thereby improving the metal phase change heat transfer efficiency.

A kind of large tow dry fiber ultrasonic drawing and infiltration and 3D printing high-efficiency integrated system, including the installation of integrated ultrasonic drawing and infiltration 3D printing system each function part on aluminium profile mounting frame and double X-axis 3D printing platform;Double X-axis 3D printing platform is XYZ three-coordinate motion and control system with two groups of parallel X-axis, two groups of X-axis can be controlled alone or can act in concert, with good repeatability positioning accuracy;Aluminium profile mounting frame is as the supporting installation frame of each function part, and is sleeved on double X-axis 3D printing platform;External control box L and external control box R are symmetrically arranged on the two sides of double X-axis 3D printing platform, and interact with the control system of double X-axis 3D printing platform itself, to realize the collaborative control to each function part;The present application utilizes ultrasonic vibration and cavitation effect of ultrasonic wave in liquid, and the twistless large tow of various fibers is continuously ultrasonic drawing, and normal temperature solid resin matrix is infiltrated into tow, and then 3D printing is carried out with it as wire material.

The application discloses a kind of composite materials for 3D printing wild animal skeleton, which is composed of composite nanoparticles of calcium phosphate and hydroxyapatite, and is prepared by a combined method of biomimetic in-situ synthesis-solvent thermal phase inversion-spray drying method.The composite material has high specific surface area and excellent fluidity, and can be used for 3D printing wild animal skeleton, with broad market application prospect.

The embodiments of the present application provide a printhead kit, a 3D printer, and a 3D printing method. The printhead kit is designed to move along the direction of force application when driven, and comprises a mount, a nozzle assembly, and a sensor. The nozzle assembly is connected to the mount and designed to move along the direction of force application when driven by an external force. The sensor is connected to the mount and / or the nozzle assembly and is designed to detect the displacement and / or deformation of the nozzle assembly. The 3D printer comprises a 3D print body and a printhead kit, the printhead kit being connected to the 3D print body.

This invention discloses a method and apparatus for processing 3D printing paths. It includes: controlling a 3D printer to start from a starting point; determining the printing points to be printed during the 3D printing process based on the area enclosed between the starting point and a reference point; sequentially connecting the starting point and the printing points to be printed with smooth straight lines to generate a printing path; and controlling the 3D printer to perform the 3D printing operation based on the printing path to obtain the target object. This effectively reduces the number of line segments forming the 3D model of the target object, avoiding frequent pauses at the beginning and end of line segments during the printing process, and preventing prolonged energy radiation and surface protrusions on the 3D printed model caused by pauses. By reducing the frequency of pauses, printing becomes smoother, improving printing efficiency, and reducing algorithm complexity, it simplifies the algorithm for the 3D printer.

This invention relates to the field of biomedical materials technology, specifically to a decellularized matrix microparticle (dECM-MPs) 3D printing ink and its preparation method. The key technical points are: a heat-absorbing compound is temporarily dissolved on the surface of decellularized matrix microparticles (dECM-MPs) via recrystallization from a supersaturated solution; then, the microparticles are immersed in a temperature-sensitive gelatin solution. The heat absorbed during the dissolution of the heat-absorbing compound leads to a localized low temperature around the microspheres, causing the gelatin to solidify on the dECM-MPs surface, forming a physically cured gelatin hydrogel microlayer in situ. This microlayer is further stabilized by enzymatic cross-linking. Photosensitive modified hyaluronic acid molecules are introduced into the hydrogel microlayer to regulate its mechanical properties. Centrifugation yields a particulate ink suitable for extrusion 3D printing. After 3D printing, ultraviolet light irradiation is used to produce a 3D printed implant. This invention overcomes the problem that rigid dECM-MPs, such as decellularized cartilage microparticles or decellularized bone microparticles, cannot be extruded and printed. By regulating the mechanical properties of the hydrogel microlayer, particulate ink with excellent printing performance can be obtained. This method overcomes the limitation of rigid tissues being difficult to additively manufacture.

The application discloses a degradable polymer-based bone repair 3D printing composite material and a preparation method and application thereof, and belongs to the technical field of bone repair material preparation.The raw material of the degradable polymer-based bone repair 3D printing composite material comprises a degradable polymer, a compatibilizer and hydroxyapatite and Mg(OH)2 co-loaded chitosan microspheres.The degradable polymer-based bone repair 3D printing composite material has good mechanical properties, biocompatibility, mineralization capacity, antibacterial and anti-inflammatory properties, can be used as a bone repair material, and is used for preparing a bone repair product through 3D printing after being prepared into a bone repair 3D printing wire material through extrusion molding, thereby providing a novel material solution for bone tissue regeneration and repair.The chitosan can adjust macrophage polarization and reduce the expression of inflammatory factors, so that the composite material has anti-inflammatory properties.

This invention discloses a method for preparing a PUA resin material for 3D printing with photothermal dual-curing properties. Step 1: Weigh IPDI and PTMG and react them in a water bath to obtain a PUA prepolymer. Step 2: Weigh TBEMA and add it to the PUA prepolymer to react and obtain a photocurable polyurethane acrylate. Step 3: Mix the photocurable polyurethane acrylate with an amine-terminated silicone chain extender, and then add an active diluent and a photoinitiator to prepare a polyurethane resin mixture. Step 4: Pour the polyurethane resin mixture into a photocurable 3D printer for photocuring and then place it in an oven for thermal curing to obtain the PUA resin material for 3D printing with photothermal dual-curing properties. The tensile strength of this material reaches 1.36 MPa, which is 6.39 times higher than that of PUA without chain extender, and it is non-toxic to human gingival fibroblasts, showing broad application prospects in the field of high-performance biomedical resin 3D printing.

This utility model discloses a 3D printing functional component with an internally encapsulated magnet, including a 3D printer body. The 3D printer body contains a support plate for supporting the 3D printed body, and a 3D printing nozzle is also located inside the 3D printer body. In the process of printing a 3D printed body with an internally encapsulated magnet, this utility model, through the coordinated operation of a drive component, a lifting component, a moving component, and a 3D printing nozzle, not only allows for the convenient placement of the prepared magnet into the interior of the 3D printed body, but also enables the continued printing to form a covering layer. This eliminates the need for adhesives such as glue or double-sided tape to attach the magnet to a designated position, solving the problems of exposed magnets or glue residue affecting aesthetics, and the risk of magnet detachment due to glue aging. It also avoids the inefficiencies associated with additional positioning, gluing, and curing processes.

The application provides a self-catalytic reformer based on a 3D printing technology and a manufacturing method thereof, and the method comprises the following steps: S1, respectively taking nickel-based alloy powder and / or iron-based alloy powder and nickel-aluminum alloy powder, mixing the powders uniformly in a mixing device to obtain printing powder; S2, using three-dimensional drawing software to obtain a shell structure with a reserved cavity; S3, using porous design software to obtain a porous structure, and the porous structure is matched with the reserved cavity of the shell structure; S4, 3D printing the self-catalytic reformer: taking the printing powder in step S1 and adding the powder into a powder supply bin of a 3D printer, then respectively taking the shell structure in step S2 and the porous structure in step S3 and introducing the structures into the 3D printer, and using 3D printing technology to print an integrally formed self-catalytic reformer. The self-catalytic reformer is obtained by the above method. The structure and function are integrated, no additional catalyst is needed, the catalytic efficiency is improved, and the production cost is reduced.

The present disclosure provides methods for recovering reactive diluent components from 3D printed crosslinked polymeric materials. The reactive diluent components can be recovered either as hydroxyl-containing compounds cleaved from pendant ester groups attached to the polymer backbone, or as (meth)acrylate monomers by cleavage of the polymer backbone itself. The recovered hydroxyl-containing compounds and (meth)acrylate monomers can be reused for the fabrication of new medical devices by 3D printing.

The utility model discloses a kind of complex flow passage integration 3D printing forming platform of marine propeller, it is related to 3D printing field, and it includes: base;First pivot, the first pivot rotation is connected in base top end;Fixed disc, the fixed disc is sleeved in the outside of first pivot, drive mechanism is provided on the fixed disc, drive mechanism is provided on top disc, and the drive mechanism is used to drive top disc to be inclined;The outer edge of top disc top end is provided with protection ring, after second motor is started, can be matched by the cooperation of first bevel gear and second bevel gear, angle inclination of top disc is driven, by the cooperation of worm and worm wheel, top disc can reach any angle, printing operation is facilitated from different angle, when 3D printing head is located above top disc, can be matched 3D printing head rotation or only rely on the rotation cooperation of top disc, can make the complex flow passage of marine propeller more easily be printed out, avoid flow passage angle complex, more widely applicable.

This invention relates to the field of materials technology, specifically to a porous metal composite material with a large melting-boiling point difference based on 3D printing and its applications. This porous metal composite material is obtained by integrated 3D printing of two or more different metals with large melting-boiling point differences using multi-material L-PBF (Liquid-Pulse-Film Processing). The melting-boiling point difference between the two or more different metals is between 220 and 2000℃. During the integrated 3D printing of the multi-material L-PBF, the interface treatment uses a remelting method: a layer of metal powder to be printed is laid on the surface of the previously printed metal layer, and remelted according to the laser parameters of the layer to be printed. The porous metal composite material of this invention exhibits good interfacial compatibility and introduces no other impurities.

1. Name of the product in this design: Graphical User Interface for 3D Printing Production Platform of Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design features of this product are its graphical user interface content. 4. The image or photograph that best illustrates the design's key features: the front view. 5. For electronic devices, the rear view, left view, right view, top view, and bottom view are omitted due to conventional design. 6. Purpose of the graphical user interface: The graphical user interface is used for the management, control and operation of the 3D printing production platform. The main view is the homepage display interface. Swipe up on the main view to enter the interface change state diagram.

This utility model provides an integrated device for secondary curing and drying of 3D printed products, relating to the field of 3D printing technology. It includes a curing component, which consists of a light source mechanism and an adjustment mechanism. The installation component enables secondary drying of the 3D printed product. The curing component can perform secondary curing on the product, and the distance between the curing lamp post and the product position can be freely adjusted to ensure stable and efficient curing. By integrating curing and drying functions, it reduces equipment costs and space requirements, while avoiding damage to the product during transfer. It solves the problem that existing 3D printed products require secondary curing and drying at two different workstations, which not only increases equipment costs and space requirements but also involves cumbersome procedures, frequent manual product transfer, and potential damage during transfer.

The present application relates to 3D printing device, specifically provide a kind of extrusion line internal material controllable distribution 3D printing device and its control method, to solve the problem that the precise, flexible and controllable adjustment of the internal multi-material space distribution of extrusion line is difficult to realize in existing extrusion type 3D printing technology.For this purpose, a kind of extrusion line internal material controllable distribution 3D printing device of the present application includes mixing channel, main body material feeding assembly, embedded material feeding assembly and motion deposition assembly.The control method of a kind of extrusion line internal material controllable distribution 3D printing device of the present application includes the following steps: preparing main body material and embedded material;Printing material extrusion forming;The corresponding post-processing is carried out to the structure of completion printing.This scheme is by setting mixing cavity in mixing channel, and respectively configuring main body material feeding assembly and embedded material feeding assembly, so that main body material and embedded material can be cooperatively transported and compounded in the same mixing space.

A computer-implemented method includes generating a digital simulation model of an object, identifying portions of the object for physical prototyping based on confidence scores derived from the digital simulation model and creating a stereolithography (STL) model for the portions. Three-dimensional (3D) printing of the portions is performed based on the STL model. Physical testing is performed on 3D printed portions, and the digital simulation model is updated based on results of the physical testing.

The application discloses a preparation method of a multi-material photocuring 3D printing integrated titanium nitride silicon carbide endothermic heat storage heterogeneous ceramic framework, which comprises the following steps: preparing silicon carbide ceramic slurry containing photocuring resin, dispersant, photoinitiator and sintering aid; preparing titanium nitride ceramic slurry containing photocuring resin, dispersant, photoinitiator and sintering aid; adding the silicon carbide ceramic slurry and the titanium nitride ceramic slurry into slurry cavities of a multi-material photocuring 3D printer respectively, inputting model information of the titanium nitride silicon carbide heterogeneous ceramic framework into the printer for photocuring printing, and obtaining the titanium nitride silicon carbide heterogeneous ceramic framework after defatting and sintering treatment. The titanium nitride silicon carbide heterogeneous ceramic framework prepared by the method has the functions of high-efficiency light-heat conversion endothermy, high-efficiency heat energy conduction, high-efficiency heat energy charging and discharging and high-density molten salt load heat storage, and has the effect of omnibearing improvement of the light-heat utilization efficiency of a solar thermal power station.

The present invention provides a material for 3D printing that exhibits good formability through 3D printing, as well as good appearance, mechanical properties, or heat resistance of the resulting printed object, and also provides a 3D printed object and a 3D printing method using the 3D printing material. [Solution] A three-dimensional molding material comprising pellets of a composition containing 5 to 70 parts by mass of carbon fiber per 100 parts by mass of thermoplastic resin, wherein the average fiber length of the carbon fibers contained in the pellets is 0.13 to 0.28 mm. A three-dimensional molded object produced using this three-dimensional molding material as a molding raw material. A three-dimensional molding method using a pellet extrusion method, which uses this three-dimensional molding material as a molding raw material.

The present disclosure discloses a blockchain-driven automated 3D printing modular construction management system, comprising: a decentralized blockchain network deployed on node devices of one or more stakeholders, wherein the one or more stakeholders include one or more of a 3D printing assembly manufacturer, a quality inspection team, a regulatory body, a logistics provider, a consultant, a budget team, and an end-user / client / owner, wherein the decentralized blockchain network is configured to store immutable records of full-lifecycle data including design specifications, material procurement, 3D printing production, logistics transportation, on-site assembly, final handover, and post-construction maintenance; a 3D printing hardware module including at least one 3D printer integrated with blockchain nodes, wherein the 3D printing hardware module real-time records printing parameters, material usage, and quality inspection data to the decentralized blockchain network, and synchronizes digital files, production schedules, and quality control measures with the network; an IoT sensor module comprising a material parameter sensor, a production progress sensor, and a transportation tracking sensor, wherein the IoT sensor module transmits real-time data to the decentralized blockchain network after a computing preprocessing using optimized computational algorithms, and supports real-time verification of construction processes; and a smart contract module embedded in the decentralized blockchain network, wherein the smart contract module includes pre-defined terms for automated material authentication, supply chain transaction validation and milestone-based payment triggering, and links financial transactions directly to project milestones.

This invention discloses a method for constructing thin-walled components based on cement-based 3D printing, comprising the following steps: Step S1, placing cement-based material into the extrusion equipment of a concrete 3D printer; the extrusion equipment is equipped with a first temperature control system, which controls the temperature inside the extrusion equipment to 10℃±5℃; Step S2, setting the printing parameters of the extrusion equipment according to the model of the thin-walled component, and printing layer by layer from bottom to top on the printing platform using 3D printing technology to form an initial component; the printing platform is equipped with a second temperature control system, which is used to control the temperature of the cement-based material printed on the printing platform; Step S3, curing the initial component on the printing platform at 45℃±5℃ to obtain the thin-walled component. The construction method of this invention is applicable to printing thin-walled components in any temperature and humidity environment, with more than 100 stacked layers and a stacking height of more than 1m, and the resulting printed component has a stable structure.