467results about "Processes with additional operations" patented technology

Additively manufactured articles of footwear comprising a sole portion and an upper portion 3D printed as a single piece. In some embodiments, the article of footwear can comprise an outer skin comprising a plurality of continuous beams extending adjacent to each other and defining at least part of an outer contour of the upper portion, at least part of an outer contour of the sole portion, or both. In some embodiments, the article of footwear can comprise an inner skin comprising a network of beams defining at least part of an inner contour of the upper portion. In some embodiments, the article of footwear can comprise a core structure that connects beams of the outer skin to beams of the inner skin.

The invention discloses a photocuring 3D printing mechanism method for multi-material cooperative spraying, and relates to the field of cooperative control, and the photocuring 3D printing mechanism method comprises the following steps: layering a model, generating a material distribution map, and labeling a functional area and a transition area; a multi-nozzle array is used for accurately positioning and spraying according to the atlas; a gradual change path is planned in the transition area, and gradient change of material components is achieved through cooperative spraying; a partition curing strategy is adopted, ultraviolet light full curing and visible light semi-curing are adopted, and leveling is promoted in combination with micro-vibration; spraying a penetrating agent between layers to form a mechanical interlocking enhanced interface; based on visual online defect detection, printing parameters are fed back and adjusted in real time through a CNN model. The device and the method have the advantages that accurate mixing of multiple materials is realized through cooperative spraying of the multiple piezoelectric sprayers and gradual change path planning, and real-time defect detection and correction can be realized by matching with differentiated photocuring, high-frequency micro-vibration leveling and interlayer penetrating agent interlocking, so that high-precision multi-material functional component forming is efficiently completed.

The invention discloses a three-dimensional printing method and three-dimensional printing equipment for manufacturing a target object. The three-dimensional printing method comprises the following steps: curing a first material to form a first part of a first layer in a plurality of target layers; curing the second material to form a second portion of the first layer of the plurality of target layers; curing the first material to form a first portion of a second layer of the plurality of target layers on the first portion of the first layer, the total thickness of the first portion of the first material being greater than the total thickness of the second portion of the second material; the steps are repeated to form a plurality of target layers of the target object. According to the scheme provided by the invention, various risks caused by the positioning accuracy of movement in the vertical direction are reduced.

The invention relates to the technical field of 3D printing, and discloses a fiber reinforced composite material 3D printer and a printing method, current deposition tows are heated / cooled under the action of a preset interlayer pressing force through an interlayer pressing device, interlayer fusion can be promoted, the interlayer bonding strength can be improved, the heat history in the wire cooling process can be eliminated, and the 3D printing quality of the fiber reinforced composite material is improved. The crystallization behavior, the grain size and the grain distribution of a polymer in a printing wire material are controlled, and the microscopic uniformity of a composite material printing product is improved. The side face and the upper surface of the current deposition tow are subjected to hot-pressing shaping through the inter-channel pressing device, meanwhile, secondary hot-pressing is conducted on the adjacent printing layer deposition tow, resin of the current deposition tow and resin of the adjacent printing layer deposition tow can be melted and flow, so that the inter-channel gap between the adjacent printing layers is filled, and the printing effect is improved. And the inter-track bonding strength is improved.

The invention provides a three-dimensional printing method and three-dimensional printing equipment. The three-dimensional printing method comprises the steps that a first material is supplied to a bearing area of a light-permeable material containing mechanism of the three-dimensional printing equipment through a first channel of a material supply mechanism of the three-dimensional printing equipment; a second material different from the first material is supplied to the bearing area of the material containing mechanism through a second channel of the material supply mechanism; a forming platform mechanism of the three-dimensional printing equipment is moved, so that the forming platform mechanism makes contact with the first material and the second material in the bearing area; light rays are projected to the bearing area through an optical mechanism of the three-dimensional printing equipment, so that the first material and the second material are cured, and a curing layer adhering to the forming platform mechanism is formed; and the forming platform mechanism is moved away from the material containing mechanism, so that the curing layer is separated from the material containing mechanism.

The invention provides three-dimensional printing equipment and a three-dimensional printing method. The three-dimensional printing equipment comprises a light-permeable material containing mechanism and a printing mechanism, wherein the light-permeable material containing mechanism is provided with a bearing area configured to bear a printing material; a feeding mechanism including a first channel configured to supply a first material and a second channel configured to supply a second material different from the first material; the driving mechanism is configured to move at least one of the material containing mechanism and the material supply mechanism; an optical mechanism configured to project light to the bearing area based on the pattern to cure the first material and the second material; the forming platform mechanism is configured to adhere to the curing layer and can carry the adhered curing layer to be separated from the material containing mechanism, and the curing layer comprises at least one of a part formed by the first material, a part formed by the second material and a part formed by the mixture.

The invention provides a three-dimensional printing method and three-dimensional printing equipment. The three-dimensional printing method comprises the steps that a first material is supplied to a bearing area of a light-permeable material containing mechanism of the three-dimensional printing equipment through a first channel of a material supply mechanism of the three-dimensional printing equipment; a second material different from the first material is supplied to the bearing area of the material containing mechanism through a second channel of the material supply mechanism; a forming platform mechanism of the three-dimensional printing equipment is moved, so that the forming platform mechanism makes contact with the first material and the second material in the bearing area; light rays are projected to the bearing area through an optical mechanism of the three-dimensional printing equipment, so that the first material and the second material are cured, and a curing layer adhering to the forming platform mechanism is formed; and the forming platform mechanism is moved away from the material containing mechanism, so that the curing layer is separated from the material containing mechanism.

The application describes a machine tool adapted and arranged to carry out removal and addition of material on a work piece located in a work station, the machine having a first head arranged to remove material from the work piece and at least a second head arranged to process the work piece, each of the first and second heads being arranged to be moveable in at least two axes and preferably in 3, 4 or 5 axes and wherein the machine is arranged to control an environment of the work station. The work station is at least partially sealable. The machine has a clean side and a dirty side. Novel processing heads particularly adapted for use in the new machine tool are disclosed. These may also be retrofitted to CNC machines. The novel heads include heads adapted to carry out two processes simultaneously. Heads adapted to carry out heat and pressure treatment are also disclosed. Use of the processing heads to carry out analysis in manufacturing steps is disclosed as is the provision and use of heads that can carry out analysis as well as processing.

Hybrid 3D printing systems and methods that can embed continuous fibers in photosensitive resins to produce a dense, high surface quality, fiber reinforced component, including complex shapes. The system includes a nozzle system having a resin container and a fiber path therethrough, the nozzle system having an outlet for resin and a continuous fiber, and at least three light sources spaced around and each in close proximity to the outlet, with each of the at least three light sources independently controllable. In use, the light source behind the nozzle, when the nozzle is moving, is activated to cure the photosensitive resin. The continuous fiber can be a pre-impregnated, high density fiber bundle (e.g., 6K, 12K).

The present disclosure provides a 3D printer including a receiving surface for accepting the accumulation of material layers, and a gantry having a shaft and carriage that is translated along the shaft, and an extruder assembly that is articulated to rotate a printing plane, wherein the extruder assembly is attached to the carriage and the articulated extruder assembly is manipulated to rotate the printing plane away from parallel with the receiving surface.

3D printing device and 3D printing method. The device comprising:a build platform having an external surface;means for providing a polymerizable fluid resin on said surface;a radiation source, to emit a radiation beam to said surface;beam positioning means, to variably position an impinging point of said beam; andmeans for controlling said source and said positioning means to manufacture a 3D tubular object according to a model;wherein the build platform comprises a stem forming a tubular shaped surface around a longitudinal axis, so that said external surface of said build platform is comprised in said tubular shaped surface, and said positioning means is configured to variably position said impinging point of said beam on different points of said fluid resin provided on said tubular shaped surface.

The present disclosure relates a method of chemical polishing a 3D printed object. The method comprises treating a 3D printed object with solvent to reduce the surface roughness of the 3D printed object, and controlling the Youngs modulus of the 3D printed object within a target value by selectively removing at least part of the solvent from the 3D printed object.

The invention discloses a three-dimensional printing method and three-dimensional printing equipment for manufacturing a target object. The three-dimensional printing method includes: forming a first plurality of layers of a target object using a base material; and forming a second plurality of layers of the target object using the first material and a second material different from the first material, including: curing the first material to form a first portion of the first layer of the second plurality of layers; curing the second material to form a second portion of the first layer of the second plurality of layers; curing the first material to form a first portion of a second layer of the second plurality of layers on the first portion of the first layer; curing the second material to form a second portion of a second layer of the second plurality of layers on the second portion of the first layer; the steps are repeated to form a second plurality of layers of the target object. According to the method, at least two materials can be printed on the same layer, so that the printing effect of multiple materials (such as colors) is achieved.

The present disclosure provides systems and methods for printing three-dimensional (3D) objects. A system for printing a 3D object may comprise at least one platform configured to hold a film of at least one mixture, a deposition unit for providing the film of the at least one mixture, and a building unit for forming at least a portion of the 3D object from the film of the at least one mixture. The system may further comprise a controller operatively coupled to the at least one platform. The controller may be configured to direct the at least one platform to move from the deposition unit to the building unit, or vice versa, along a plurality of non-overlapping paths.

The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, the method comprising: a 3D printing stage comprising layer-wise depositing 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item comprises layers (322) of 3D printed material, wherein the 3D printable material comprises a thermoplastic material (401) and a photocatalytic material (409) wherein during at least part of the 3D printing stage the method comprises producing pores (423) in the 3D printable material.

An additive manufacturing device includes a stage configured to support a substrate. The device also includes a printhead disposed above the stage. The printhead is configured to heat a build material to a molten build material and to deposit the molten build material on the substrate in the form of droplets to fabricate an article. The device also includes a controlled heating and ablation system disposed proximal the printhead. The controlled heating and ablation system is configured to heat the substrate and ablate oxides on a surface of the substrate.

An additive manufacturing system is disclosed. The additive manufacturing system may include a support, and a print head operatively connected to and moveable by the support. The print head may include an outlet configured to discharge a material, and a compaction module configured to compact the material. The additive manufacturing system may also include a controller configured to selectively adjust a pressure applied by the compaction module on the material independent of movement of the print head caused by the support.

The present disclosure is directed to a construction element produced by additive manufacturing, an additive manufacturing system for producing the construction element and a method for manufacturing the construction element. The construction element includes an outer layer. The outer layer is configured to define or form an enclosure. The construction element further includes an inner matrix. The inner matrix is formed within the enclosure. The outer layer and the inner matrix are formed integrally, by depositing successive layers using an additive manufacturing system. The inner matrix is defined by a first layup and a second layup. The first layup is laid along a first direction and across the enclosure. The second layup is laid juxtaposing the first layup. The first layup and the second layup define a plurality of air pockets in the inner matrix. Further, a filler material is infused into at least some air pockets of the plurality of air pockets.

Embodiments of the disclosure are directed to an apparatus (200) for smoothing a surface of an object (100). The apparatus (200) includes a chamber (210), a reservoir (216, 324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid (322) into the chamber (210). The nebulizer assembly (212) includes a mesh (732), a vibrating element (731), and a wick (736). The object (100) is received in the chamber (210) and the mist (104) is configured to surround the object (100).

The invention relates to a wax formwork production device for producing a wax formwork (150) for concrete casting, having: (a) a melting unit (10) for heating the wax to a predetermined temperature above the solidification temperature of the wax, (b) a mixing unit (20) which is configured to admix gas into the wax such that a wax-gas mixture is produced, (c) a nozzle (30) which is arranged downstream of the mixing unit (20) in the direction of flow and is configured to apply the wax-gas mixture in layers to a substrate, (d) a positioning system (50) for positioning the nozzle (30) relative to the substrate, and (e) a control unit (60) which is designed to control the positioning system (50) for positioning the nozzle (30) relative to the substrate such that the wax formwork (150) is produced. The invention also relates to a concrete casting manufacturing plant having such a wax formwork production device and a concrete feeding device for casting concrete in the wax formwork, to a method for producing a wax formwork, and to a method for producing a concrete component.

Methods of three-dimensional printing can include iteratively applying a polymer build material as individual layers to a powder bed, where the polymer build material includes from about 80 wt % to 100 wt % polymer build particles, and based on a three-dimensional object model, selectively applying a binder agent including an aqueous liquid vehicle and polymer binder particles onto the individual layers of the polymer build material. The polymer binder particles have or are capable of having a melting temperature lower than a melting temperature of the polymer build particles. The methods can include exposing the powder bed to heat at a temperature less than a melting point of the polymer build particles but greater than a melting temperature of the polymer binder particles. The heat causes the polymer binder particles to melt to adhere the polymer build particles together to form a three-dimensional object.

A processing apparatus 110 comprises: a forming stage 112 that supports an article ST formed from a material M and can rotate in a predetermined rotation direction around a rotation axis; a crossing frame that is arranged above the forming stage and has a first frame 124-1 formed along a first straight line L1 passing through the rotation axis RX and a second frame 124-2 formed along a second straight line L2 passing through the rotation axis and different from the first straight line; a first device that is supported by the first frame, that can move along the first straight line, and that is used for forming the article; and a second device that is supported by the second frame, that can move along the second straight line, and that is used for forming the article.

The present invention discloses an integrated method for fabricating a frequency selective surface (FSS) for a complex curved cavity structure. This method utilizes multi-process composite 3D printing as a technical approach, employing FDM technology to fabricate a water-soluble substrate. 3D direct writing technology is then used to create an inner FSS pattern on the substrate surface. The cavity structure itself is then printed on top of the substrate, and an outer FSS pattern is then created on the surface of the cavity structure. The water-soluble substrate is then dissolved, ultimately resulting in a complex curved cavity FSS structure with frequency selective patterns on both the inner and outer surfaces. Furthermore, through the practice of this invention, surface treatment measures are required for the 3D printed structure before fabricating the FSS pattern, improving the quality and precision of the FSS metallization pattern and ensuring the integrated fabrication of the complex curved cavity structure and the inner and outer FSS patterns.

This invention provides a three-dimensional molding apparatus and method that improve molding accuracy in three-dimensional molding, which involves repeatedly melting and solidifying powder and then cutting it to form a three-dimensional object. [Solution] In a powder bed type three-dimensional molding apparatus, a laser is irradiated onto metal powder to melt and solidify the powder, forming thin layers, and these thin layers are stacked to create a three-dimensional object. At this time, the molding accuracy of the object is improved by cutting off the formed layers after each predetermined layer has been formed, such as 10 layers. The cutting data that defines the cutting shape uses a shape S3 obtained by reflecting the displacement d1 between the desired shape S1 and the shape S2 whose deformation has been predicted by simulation onto shape S1. Alternatively, the deformation of shape S3 may be further predicted to obtain a displacement d2 between it and shape S1, and a shape S5 that reflects this displacement may be used as the cutting data.

A web-based CBAM printing system and method comprises a machine and improvements therein that permit accurate image-to-edge registration for printed cross-sectional layers, simultaneously with edge-to-edge registration among sheets that make up a build block, all in combination with high-precision edge cutting of the web and bow-prevention structures to facilitate stacking.

This invention belongs to the field of additive manufacturing technology, specifically relating to an integrated additive manufacturing method for foam sandwich structures and the foam sandwich structure itself. The method includes: determining the printing parameters of a 3D printer, wherein the 3D printer includes a first nozzle for printing the core material into a core, and a second nozzle for printing the panel material (including the core material and a foaming material mixed in the core material) into a panel. The printing parameters include the printing paths of the first and second nozzles. The 3D printer then prints and deposits layers according to the printing parameters until the foam sandwich structure is completed. This method eliminates the need for bonding, allowing for integrated molding of the foam sandwich structure; it also eliminates the need for molds, enabling the fabrication of complex foam sandwich structures, significantly reducing production costs and improving production efficiency. The foam sandwich structure prepared by this method is characterized by its lightweight and high structural rigidity.

An apparatus for processing a wax mold to smooth it to a predetermined smoothness or mold height and filling the mold with paste. The apparatus has one or more cutting blades and cleaning brushes, the cutting blades rotate over the wax to polish it to the predetermined smoothness or mold height, and the cleaning brushes contact the cutting blades to remove the wax from the cutting blades.

Embodiments herein relate to 3D printing. In an embodiment, a method for printing an article using a selective toner electrophotographic process (“STEP”) includes successively depositing multiple layers of part material, the layers deposited substantially parallel to a first plane; wherein: a) the multiple areas of part material extend in a perpendicular to the first plane; and b) at least some of the areas of part material are separated from each other to form a gap between the layers of part material; application of heat and pressure to the part material such that a portion of the part material flows into and at least partially fills the gap within the part material.

To manufacture the stator or rotor of an axial-flow motor, a layered structure is generated by additive manufacturing as follows: - Alternating layered structures (2) with rotationally symmetrical basic shapes are additively generated, wherein different layers (3, 4), namely, a first type of layer (3) composed of filaments containing plastic and soft magnetic metal materials and a second type of layer (4) composed of filaments containing plastic and ceramic, are nested together; - The layered structure (2) generated from the different layers (3, 4) is heated to a first temperature (T1), at which the plastic is removed from the layers (3, 4); - The layered structure (2) is heated further, thereby sintering the soft magnetic metal material of the first type of layer (3) and obtaining an electrically insulating ceramic layer from the second type of layer (4).

The present invention relates to a method for producing a composite body (2) from at least two sub-bodies (1), wherein at least one of the sub-bodies (1) is produced by an additive manufacturing process, and wherein the at least two sub-bodies (1) are exposed in a chamber (6) to a solvent atmosphere (7) so that a surface of the sub-bodies (1) is smoothed. The invention also relates to a composite body (2) produced according to the method. For the method, it is proposed that the at least two sub-bodies (1) are positioned in the chamber (6) such that they touch at at least one joining surface (5), and thus a metallurgical bond is formed between the at least two sub-bodies (1) at the at least one joining surface (5) by the solvent atmosphere (7).