High Resolution 3D Printing Techniques for Manufacturing

A method for 3D printing metal objects that enhances accuracy and quality compared to previous methods. It involves building a frame and then an internal structure within the frame. The method includes measuring the base shape in the internal area before building the structure. It then calculates the deviation from the planned shape and makes welding corrections. This allows the internal structure to be built accurately even when the frame obstructs real-time measurement.

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3D printing method uses extrusion of partially-reacted thermoset materials to print objects with improved resolution and material properties compared to traditional thermoplastic 3D printing. The method involves extruding reactive components from a mixing chamber that partially react before deposition. The partially-reacted thermoset adheres to previously deposited layers and cures fully after printing. The extruded thermoset has properties that enable high-resolution printing and improved material performance, like flexibility, strength, and durability.

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A 3D printing material for dental applications that allows the fast production of accurate dental models. The material contains specific monomers and initiators that reduce polymerization shrinkage and deformation after printing. The key components are monofunctional acrylate monomers with an electronegativity difference of less than 1.0 between adjacent atoms and initiators with absorption bands of 350-450nm. The material may also include low-shrinkage polyfunctional methacrylates, non-dendritic polymers, fillers, and colorants.

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Accelerating high-resolution 4D thermal simulation for additive manufacturing using machine learning to bridge the resolution gap between affordable simulation resolution and actual print resolution. The technique leverages deep learning models trained on low-resolution simulation output and geometrical data to infer high-resolution thermal images in 4D (x, y, z, time). This allows for generating detailed thermal simulations near print resolution to guide additive manufacturing processes.

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Resin composition and production method for high-dimensional accuracy 3D-printed objects. The resin composition contains polysaccharide nanofibers dispersed in a thermoplastic resin. The nanofibers form a network structure when the resin melts, preventing shrinkage and shape distortion upon cooling. This provides dimensional accuracy in 3D-printed objects. The nanofiber content should be 1-70% by mass. The production method involves using the resin in selective laser sintering or fused deposition modeling to create 3D shapes.

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Three-dimensional printing with enhanced resolutions and cleaning capabilities. The 3D printing system uses a projector to project the appropriate energy onto forming materials in a reservoir tank to create a solid object. The projector can be customized to emit the required energy (e.g., UV light) for specific materials like resins, ceramics, metals, biologies, etc. The printer also has a cleaning method that coagulates debris in the tank using the projector and a removable bottom surface geometry.

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3D printing with multiple fluids improves print quality and prevents printed object degradation. The approach uses a kit of fluids, including a fusing agent, antioxidant formulation, coloring agent, and detailing agent. The antioxidant formulation protects the polymer build material from thermal degradation during printing. Applying the antioxidant along with fusing agents selectively pattern the layers. This prevents degradation when the build material is exposed to high temperatures during fusing. The coloring and detailing agents provide additional customization options.

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Micro-nano 3D printing device with multi-nozzle jet deposition driven by the electric field of a single flat plate electrode for high-resolution, stable, and efficient micro-nano 3D printing. It uses multiple non-conductive nozzles without connecting them to high voltage, which avoids electric field crosstalk. The flat plate electrode generates an electric field to propel neutral droplets from each nozzle.

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A compact heater on a 3D printer dries filament before printing to improve the quality of 3D-printed objects. The heater is positioned between the filament source and the printer head. It has heating elements to warm the filament and moisture collectors to absorb any moisture. This dehumidifies the filament before it is extruded.

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High speed, high resolution 3D printing of viscous materials using a multistep process that separates the printing, curing, and transfer steps. The process involves printing the viscous material onto an intermediate substrate, curing it, and then transferring the cured layer to a final substrate. This allows higher resolution printing without limitations of a single material. The intermediate substrate provides a precise gap for printing. Imaging and processing steps can be done between printing and curing.

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Fabricating inorganic 3D nanostructures using 3D printing techniques with resolution below 200nm. A nanocomposite ink containing functionalized silica nanoparticles is used. Two-photon polymerization is performed to form the 3D structures, followed by pyrolysis and sintering to convert the polymerized ink into pure silica nanostructures. The crystallinity of the structures can be controlled by adjusting the sintering temperature.

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3D printing apparatus with improved success rate and fineness of prints by using a heat dissipation assembly to temporarily improve the rigidity and strength of the printed object. The heat dissipation assembly is adjacent to the tank and may directly or indirectly decrease a temperature of the printed object during the printing process.

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3D printing that achieves higher resolution by selectively curing regions of a resin using cumulative light exposure along a specific path. The method involves moving a light modulator and delivering light in steps smaller than a pixel width so curing energy accumulates in overlapped regions. This allows precise control of resin curing to achieve subpixel-level resolution.

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A 3D printing method that avoids inclined surfaces and improves the shape-forming resolution of the printed object. It involves generating control data for the printer that is deviated from the usual multi-pass printing approach when the printer has staggered nozzle columns. The deviation avoids nozzle overlap at the ends of each pass that causes inclined surfaces.

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