1071results about "Manufacturing auxillary operations" patented technology

A process and apparatus are provided for manufacturing complex parts and devices which utilize a CAD environment to design a part or device to be created (FIG. 1); Boolean, scaling, smoothing, mirroring, or other operations to modify the CAD design; a software interface to convert the CAD designed part (Data Process System) or device into a heterogeneous material and multi-part assembly model (Design Input Model) which can be used for multi-nozzle printing; and a multi-nozzle system to print the designed part or device using different, specialized nozzles (Tissue substitutes).

A process and device for 3D printing parts incorporating long-fiber reinforcements in an advanced composite material is disclosed. A nozzle for a 3D printing device receives a polymer material and a reinforcing fiber through separate inlets. A passage from the reinforcing fiber inlet cleaves the passage containing the polymer material, creating an interstitial cavity into which the reinforcing fiber is introduced. The polymer material closes back on itself and encapsulates the reinforcing fiber, then drags the fiber along with the flow and exits nozzle to be deposited on a work surface or part being manufactured.

A method for physically reconstructing a body part using multi-material additive manufacturing includes receiving image data of the body part in the form of arrays of voxels, each array of voxels representing image data pertaining to cross-section of the body part, translating the image data in the arrays of voxels to printable bitmap images representing combinations of modeling materials for reconstructing the body part, and dispensing the combinations of modeling materials responsive to the bitmap images in a layerwise manner.

The present disclosure generally relates to integrated core-shell investment casting molds that provide an indentation structure corresponding to a thin root component of the turbine blade or vane (i.e. angel wing, skirt, damper lug).

In a first aspect, there is a method of making a rotor blade, including designing at least one of an upper skin, a lower skin, a support network, and components therefor; and forming at least one of the upper skin, the lower skin, a support network, and components therefor using an additive manufacturing process. In a second aspect, there is an airfoil member having a root end, a tip end, a leading edge, and a trailing edge, the airfoil member including an upper skin; a lower skin; and a support network having a plurality of interconnected support members in a lattice arrangement and/or a reticulated arrangement, the support network being configured to provide tailored characteristics of the airfoil member. Also provided are methods and systems for repairing an airfoil member.

In an aspect, a composite material system comprises: a structure having an architected three-dimensional geometry; wherein said three-dimensional geometry is monolithic and deterministic; and a matrix phase; wherein said matrix phase at least partially infiltrates said structure. In some embodiments, the three-dimensional geometry is a nano- or micro-architected three-dimensional geometry.

A 3D printer has a dual stage structure and includes: a frame; an extrusion unit having a nozzle configured to extrude a raw material; a stacking base unit positioned under the extrusion unit and configured to receive the raw material on a surface thereof so that an object is formed in a layer-by-layer manner on the surface; and a cutting unit positioned between the stacking base unit and the extrusion unit and configured to grind or cut the object formed on the surface of the stacking base unit, wherein the frame is configured to be connected to outer sides of the stacking base unit, the extrusion unit, and the cutting unit, the stacking base unit and the cutting unit are configured to be vertically movable along the frame, and the nozzle is configured to be movable on a plane.

The invention discloses a method and apparatus for producing a foamed product based on 3D printing. The apparatus mainly comprises a molding unit, a supercritical infiltration unit and a foaming unit, wherein the molding unit is a 3D printer and mainly comprises a three-dimensional ball screw sliding table, a molding platform, a 3D printer case, a plasticizing screw, a heating ring and a nozzle; the supercritical infiltration unit is mainly composed of a preheater, a booster pump, a CO2 storage tank and an infiltration vessel; and the foaming unit is mainly composed of a steam generator, a foaming case and a cover plate. The method comprises the following steps: printing a three-dimensional model via the molding unit according to product needs; then putting the three-dimensional model into the infiltration vessel in the supercritical infiltration unit and carrying out infiltration by using supercritical CO2; and carrying out steam foaming in the foaming case so as to obtain the foamed product. According to the method and apparatus provided by the invention, production stages are simplified to three production stages, so production cost and process complexity are reduced, and simplified production of foamed products with any complex structures can be realized.

The invention discloses nano-scale high-precision additive manufacturing equipment. The nano-scale high-precision additive manufacturing equipment comprises a printing platform and a printing nozzle,wherein a high-voltage pulse power supply is applied between the printing platform and a conductive nozzle of the printing nozzle; and a uniform-intensity magnetic field perpendicular to the printingplatform is further arranged between the printing platform and the printing spray head, and the distance between the printing platform and the printing nozzle meets the characteristic requirements. According to the nano-scale high-precision additive manufacturing equipment, nano-scale 2D and 3D additive manufacturing is achieved, high-voltage pulse electric fluid dynamic jetting, a nano-scale printing head and a constraint magnetic field are benefited, and the problem that high-precision nano-scale materials cannot be constructed in the prior art is solved, and particularly relates to the insufficiency and restrictions in the field of electronic circuit board printing, nano energy storage, solar cells and biomedicine, flexible electronic materials, high-flux preparation and the like.

The invention relates to an efficient 3D printer with anti-blocking and automatic adjusting functions. The efficient 3D printer comprises a base, a printing platform, a top plate, a material disc, a wire feeding pipe and two lifting units. A printing mechanism comprises a movable plate, a printing unit, a flow guiding unit and a dredging unit. The printing unit comprises a rotating unit, a first sprayer, a second sprayer, a blocking pipe and two material conveying pipes. A blocking mechanism is arranged in the blocking pipe. The dredging unit comprises a fixing rod, a driving unit, an inserting rod, a lifting rod and a bottom rod. The flow guiding unit comprises an air pump, an air pipe, an air cylinder, a piston and a heating pipe. According to the efficient 3D printer with the anti-blocking and automatic adjusting functions, the first sprayer and the second sprayer are flexibly switched through the rotating unit, the printing efficiency can be improved, the printing precision can be guaranteed, more than that, the driving unit drives a lifting frame and the inserting rod to move in the vertical direction back and forth, the first sprayer and the second sprayer are dredged, and the blocking phenomenon generated during printing is avoided.

The invention relates to 3D printing equipment having an air purification function. The 3D printing equipment comprises a main body, a spray head, a printing table, a material conveying mechanism and a power mechanism; the main body further comprises an air purification mechanism and a protection mechanism; the air purification mechanism comprises a purification chamber, a fan, a filtration component and a sterilization component; and the protection mechanism comprises a first connecting rod, a second connecting rod, a protection cover and a driving component. According to the 3D printing equipment having the air purification function, air in the 3D printing equipment is filtered through the air purification mechanism, and then the purified air is exhausted, so that harmful gas is prevented from harming human health, and air pollution is avoided; in addition, when the 3D printing equipment does not work, a winding reel and a material wire are protected through the protection mechanism, so that a situation that the material wire is wound due to the fact that the winding reel is exposed out is prevented, and the material wire is prevented from being damaged.

The invention provides a multi-material digital light processing (DLP) three-dimensional printing method and printing equipment thereof. The core of the multi-material DLP three-dimensional printing method lies in the multi-trough switching technique, that is, two or more resin troughs containing different kinds of photosensitive resin are arranged below a model building table, and the resin troughs are installed on a horizontal motion mechanism controlled by a motor. Each resin trough can be directly moved to the position below the building table when needed. After printing of one material is completed, the resin trough containing another material is horizontally moved to the position below the building table, the material replaces the original material to continue to receive irradiation of a projector, and thus printing operation can be continued. The overall arrangement of the multi-material DLP three-dimensional printer is conducted according to a lower exposure type three-dimensional printing system, the single trough structure and the motion mode of existing DLP three-dimensional printing equipment are converted into a multi-trough structure, printing of various resin materials can be conducted so that individual requirements of models can be met, and accordingly the application range of the DLP three-dimensional printing technology is broadened.

The invention relates to an interlayer reinforcement technology for 3D printing of a fiber reinforced composite and belongs to the technical field of interlayer reinforcement technologies for 3D printing of continuous fiber reinforced thermoplastic resin matrix composites. 3D printing equipment involved in the interlayer reinforcement technology comprises at least two printing nozzles, namely a fiber reinforced thermoplastic resin printing nozzle (an in-plane nozzle) and an interlayer reinforcement nozzle. The interlayer reinforcement technology comprises the following working steps: firstly,printing certain layers of an in-plane material by using the in-plane nozzle till the thickness reaches 0.5 mm to 30 mm; secondly, according to the design space, implanting a thin bar into a multi-point position of the printed layered area by using the interlayer reinforcement nozzle so as to complete the one-layer reinforcement operation; and thirdly, repeating step 1 to step 2 so as to completethe multi-layer printing and reinforcement operation till a product is printed. The interlayer reinforcement technology provided by the invention has the beneficial effects that the cost is low; the degree of automation is high; and the weak interlayer performance of a 3D printing product can be greatly improved.

The invention discloses a three-dimensional scanning forming device and method based on laser forming. A collimating beam expander, an adjusting lens and a galvanometer are installed on a straight line. The collimated beam expander is used for diverging small light spots output by a laser device, parallel light after beam expanding enters the adjusting mirror, the transmission distance of a lightbeam is adjusted by the adjusting lens, namely an optical path is changed, the diameter and focal length of focused light spots are adjusted, the light beam deflects optionally by the galvanometer, finally, the light beam deflected by the galvanometer is focused through a field lens, a small light spot high-energy light beam is formed and moves on a printing platform, and a forming material on theprinting platform is printed and formed by the focused light spots focused by the field lens. According to the device, the focusing height of the light beam in the height direction is adjusted by theadjusting lens, meanwhile, in cooperation with the galvanometer, movement of a light beam focus on a plane is adjusted, thus, forming and movement of the focused light spots in a three-dimensional space are realized, continuous forming in a three-dimensional space can be realized, and the printing precision, scanning efficiency and printing precision are improved.

The invention discloses a cooling and damping movable base of a 3D printer. The cooling and damping movable base comprises a fixed base, a transmission belt, a protection baffle and a damping spring. A rotating shaft is installed in the fixed base. The transmission belt is connected with the fixed base through the rotating shaft. Vent holes are formed in the surface of the transmission belt. Filter screens are installed outside the vent holes. Antiskid strips are arranged on the two sides of each filter screen. The protection baffle is located above the fixed base. A sound absorbing sponge is installed in the fixed base. A limiting clamping block is installed on the left side of a supporting rod. A safety pin is installed on the right side of a bearing column. According to the cooling and damping movable base, the printer is pulled to rotate together with the transmission belt, the position of the printer can be conveniently moved, the abrasion of the bottom of the printer is avoided, when external pressure suddenly increases, the safety pin is broken, the damping spring absorbs impact of the supporting rod, and the overall stability is improved.

The invention discloses a resin tank for a DLP photocuring 3D printer capable of achieving quick film replacement and an assembling method thereof. The resin tank mainly comprises four parts including an upper end cover, an upper clamping plate, a lower clamping plate and a base; a polyperfluorinated ethylene propylene film is clamped between the upper clamping plate and the lower clamping plate and ejected into square through holes formed in the upper clamping plate and the lower clamping plate through a pressing frame of the upper end cover to be tensioned, the tensioned film can be well released from cured resin through the elasticity of the film in the printing process, and different printing precision requirements can be met by adjusting the tensioning degree of the film. According to the resin tank, a threaded fastener is not used in design, the polyperfluorinated ethylene propylene film can be quickly replaced and adjusted to the film tensioning degree, operation is more convenient, and the efficiency is improved.

The utility model relates to a numerical control processing machine tool integrating adding and subtracting materials, which relates to a numerical control processing machine tool. In order to solve the problem that the existing increase and decrease materials are divided into different equipments for processing, the present invention not only brings difficulties to the reduction of materials, the secondary clamping affects the quality of the reduction materials, but also has the problem of wasting the entire processing period. The invention includes a base plate (1) and a moving device, the moving device is installed on the base plate (1), it also includes a milling device, a feeding device, a printing nozzle assembly and a printing platform (2), the feeding device is installed on one side of the moving device, The printing nozzle assembly is connected with the feeding device and extends into the mobile device, the printing platform (2) is installed on the mobile device, and the milling device is installed on the other side of the mobile device to mill and cut the additive materials on the printing platform (2) material. The invention is used for wood-plastic extrusion printing.

The invention relates to a compound ultrasonic fusion deposition additive-manufacturing device and a compound ultrasonic fusion deposition additive-manufacturing method, and belongs to the technical field of additive manufacturing. An ultrasonic enhancement device is fixed to a guide rod I and a guide rod II of an ultrasonic support platform; a moving base plate is installed on a guide rail I and a guide rail II of an X-directional guide connection system, and fixed to a synchronous belt simultaneously; the moving base plate is driven to move through an X-directional motor; and a fusion deposition additive-manufacturing system and the ultrasonic support platform are connected through a connection rod I and a connection rod II in the X-directional guide connection system. Parts with poor adhesion among fusion deposition wire materials and between the deposition wire materials and a deposition layer can be re-melted by virtue of ultrasonic vibration, and the deposition wire materials in formed parts are compounded into one piece, so that the comprehensive mechanical property of fusion deposition additive-manufactured parts, and in particular, the mechanical strength in the vertical direction of a forming axis, is remarkably improved.

The invention relates to a rotary type 3D printing head which comprises a supporting mechanism, a rotating mechanism, spray nozzle mechanisms and a shading mechanism, wherein the supporting mechanism comprises a supporting plate, a supporting rod and a cylinder; the rotating mechanism comprises a sleeve, a first motor, a first circular gear, a second circular gear and limiting rings; the spray nozzle mechanisms comprise spray nozzles, heating blocks, material feeding pipes and connection rods; the shading mechanism comprises a baffle and a collection chamber; a material feeding mechanism comprises a material feeding plate, a second motor and a third circular gear; a heat dissipation mechanism comprises a coil pipe, a water tank and a water pump. The rotary type 3D printing head is provided with four spray nozzle mechanisms, so that four raw materials can be put into the printing head at the same time; during printing, switching of the different raw materials can be realized; during switching of the different raw materials, the raw materials leaking from the spray nozzles can be led into the collection chamber, so that the printing quality is guaranteed; furthermore, a water cooling heat dissipation mechanism is arranged outside the material feeding pipes, so that noise is reduced, and interference of air to the printing head during heat dissipation of a conventional fan is further prevented.

An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.