92results about "Manufacturing irradiation arrangements" patented technology

A method for fabricating a composite object with a computer-controlled apparatus, and the apparatus therefor. The comprises a reservoir containing liquid, curable first material, means to selectively solidify the first material and means to selectively deposit a second material. The method involves the steps of selectively depositing portions of the second material, and selectively solidifying portions of the first material, such that the solidified portions of the first material and the deposited portions of the second material form the composite object.

Disclosed embodiments include the formation of an article of manufacture by a process in which vibrations are generated in a bulk material disposed within a build chamber. The vibrations are focused within a section of the base material, and the focusing is controlled to cause the section of the base material to undergo a physical transformation to form at least a portion of the article of manufacture.

The invention discloses a high-speed continuous photocuring type 3D printing device and a working method thereof. The 3D printing device comprises a machine case body which is divided into an upper cavity and a lower cavity by a middle partition board, wherein an image forming module is arranged in the lower cavity, a window box and an oxygen supply cooling module are arranged in the upper cavity and are combined to be fixedly mounted on the middle partition board, the oxygen supply cooling module is arranged right below the window box, and the image forming module I is arranged right below the window box; a printing platform is arranged right above the window box and is mounted on a Z-direction worktable; and the window box is connected with a raw material feeding unit. The 3D printing device is integrated with the advantages of a compound oxygen-rich film, oxygen supply cooling and liquid surface auxiliary pressurization of the window box, so that the low-cost and efficient continuous printing of large-sized products with arbitrary shapes is realized, the range of applicable materials is wide, the printed products are high in precision and quality and good in uniformity, and the process is stable and reliable. An industrial-grade solution is provided for the high-speed continuous photocuring type 3D printing.

Provided herein according to some embodiments is a method of forming a three-dimensional object, comprising: (a) forming a first intermediate object from a first polymerizable liquid; (b) forming a second intermediate object from a second polymerizable liquid; (c) optionally washing said first intermediate and said second intermediate; (d) contacting said first intermediate object to said second intermediate object; and then, (e) solidifying and/or curing a second solidifiable component (e.g., said second reactive component) in each of said first and second intermediate objects while said first and second intermediate objects are in contact with one another to couple said first and second intermediate objects to one another and form said three-dimensional object.

A method of forming the body portion of a three-dimensional object from a polymerizable liquid by the process of continuous liquid interface printing is described. The process includes advancing a carrier for the object away from a build surface while irradiating a build region between the carrier and build surface in a pattern of advancing and irradiating defined by an operating mode, with the body portion having a plurality of contiguous segments and with the irradiating carried out in sequentially presented slices of exposure, each having a pattern that corresponds to a segment of the body portion. Each segment has a thickness (e.g., in Z or vertical dimension) during the forming thereof. In the present invention, slice thickness is changed among the slices at least once during the formation of the body portion.

In an additive 3D printing method for production of shaped articles from silicone elastomers, an elastomeric shaped body is built up step by step, by repeatedly precisely positioning portions of the crosslinkable silicone material and crosslinking by means of electromagnetic radiation. Charges that occur on the surface of the print material or on the article are neutralized by means of an ionization system.

A method and apparatus for making a three-dimensional object by solidifying a photohardenable material are shown and described. A photohardening inhibitor is admitted into a surface of a photohardenable material through a flexible film to create a “non-solidification zone” where little or no solidification occurs. The non-solidification zone prevents the exposed surface of the photohardenable material from solidifying in contact with the film. The inhibitor tends to cause the film to deform along the build axis, thereby creating a non-planar interface between the photohardenable material and the film, which distorts the resulting three-dimensional object. An apparatus is provided to stabilize the flexible film and eliminate or minimize such deformation.

The invention provides a photocurable non-transparent material for 3D printing, a preparation method thereof, a 3D printing product and a 3D printer. The photocurable non-transparent material for 3D printing comprises the following components in parts by weight: 30-70 parts of a first acrylate component, 20-60 parts of a second acrylate component, 0.5-5 parts of a photoinitiator, 0.5-8 parts of anauxiliary agent and 0-4 parts of a colorant, wherein the first acrylate component is a polar acrylate component; and the second acrylate component is selected from at least one of weakly polar and non-polar acrylate components. According to the photocurable non-transparent material for 3D printing provided by the invention, a 3D printing product can be made non-transparent without adding white pigments such as titanium dioxide, so that the photocurable non-transparent material for 3D printing has the characteristics of high stability, the smoothness in a 3D printing process is ensured, the 3Dprinting product has good quality, and the 3D printer containing the photocurable non-transparent material for 3D printing has good performance.

The invention discloses a medical image three dimensional entity reconstruction system and a reconstruction method thereof. The system comprises a horizontal moving device, a vertical lifting device and rotating devices. The horizontal moving device comprises two parallel shafts and a vertical shaft, and the two ends of the vertical shaft are slidably connected with the two parallel shafts correspondingly. The rotating devices are arranged on the vertical shaft and can move in the direction of the vertical shaft. A plurality of spray head modules are installed on the rotating devices and conduct rotating and angle adjusting under driven of the rotating devices. The vertical lifting device is arranged under the horizontal moving device and is provided with a printing platform capable of going up and down. According to the medical image three dimensional entity reconstruction system and the reconstruction method thereof, the precision of a formed workpiece and the working efficiency of a machine can be improved, much abundant information difficult to display through traditional imageological examination is provided for doctors, and comprehensive and intuitive bases are provided for personalized treatment plans.

This invention relates to compositions and methods for making three-dimensional (3D) images by additive manufacturing or 3D printing. Specifically, it describes techniques that allow images consisting of sand, metal or ceramic particles to be formed by the polymerisation of a photopolymer mixed with the particles.

The invention relates to a photocuring 3D printing device. The device comprises a model plate, a curing model is combined on the model plate, and the photocuring 3D printing device also comprises a light guide assembly. The light guide assembly comprises a coupling-in part, an optical waveguide and a coupling-out part, the coupling-out part is arranged to correspond to the model plate, the coupling-in part converts an incident light beam, introduces the light beam into the optical waveguide, conducts the light beam to the coupling-out part and emits the light beam out of the coupling-out areabetween the light guide assembly and the model plate through conversion of the coupling-out part, and the model plate and the light guide assembly can move relatively. According to the present invention, the relative fixation of the position relation between a light source and a printing material container in the prior art is avoided, the flexible arrangement of the relative position relation between the light source and the printing material container can be achieved, the overall performance of the device is improved, and the printing efficiency and the printing precision can be improved.

The invention provides a novel screw rod type nozzle with fused deposition forming technology. The novel screw rod type nozzle comprises a motor, a motor end cover, a rolling bearing, an electromagnetic heating ring, a bolt, a nozzle, a U-shaped bearing, a customized gear, a preheating device, a heating rod, a material channel, a molten pool, a screw rod extruding device, a material cylinder and thermoplastic materials. The electromagnetic heating ring is arranged on the outer boundary of the material cylinder and replaces an original heating block device; and the screw rod extruding device isarranged in a molten pool, and an original straight barrel type feeding device is replaced. According to the novel screw rod type nozzle, the preheating device is arranged, so that the thermoplasticmaterials flow into the molten pool after reaching the semi-molten state. The electromagnetic heating ring is arranged on the periphery of the material cylinder, so that the thermoplastic materials can be uniformly heated, and the phenomenon that the fusion material is "cast" due to the fact that the local temperature is too high in the process of using the heating rod is avoided. The molten poolis mainly added, so that the evolution of the fused deposition forming technology from the desktop level to the industrial level is promoted.

A shaping system includes: a printing device that prints an image using predetermined ink on a thermal expansion sheet having a thermal expansion layer on one side; and a heating device that performs: an identifier detection process of detecting an identifier provided on the thermal expansion sheet; a heating condition setting process of setting a heating condition for heating the thermal expansion sheet, based on the identifier; and a heating process of heating the thermal expansion sheet based on the set heating condition.

An LCD type 3D printer includes a light source provided at a lower portion of the 3D printer to irradiate light upward, a lens disposed at a predetermined distance from an upper portion of the light source, an LCD panel provided above the lens, a storage container provided above the LCD panel to store a liquid molding material, a build plate provided above the storage container to hold a molded product, and an elevating member provided at an upper portion of the build plate to move up and down. The lens includes an upwardly-convex meniscus lens or a convex lens provided between the light source and the LCD panel to reduce a light irradiation angle.

A composition, method, and system for directly printing and creating complete functional 3D electronic circuits and devices without any thermal or laser post-processing treatment, by using at least Triphenylamine (TPA) as a powder binding agent. The composition can have mechanical characteristics that allow it to be melted and extruded on a structure, and electrical properties that allow it to function as at least one of a conductor, insulator, resistor, p-type semiconductor, n-type semiconductor, or capacitor.