B29C31/044

Imprint apparatus and method of manufacturing article
11526090 · 2022-12-13 · ·

The present invention provides an imprint apparatus that forms an imprint material pattern on a substrate by using a mold, comprising: a discharge unit on which a plurality of discharge outlets configured to discharge an imprint material are arranged; a measurement unit configured to measure a relative tilt between the discharge unit and the substrate; and a control unit configured to control a process of causing the discharge unit to discharge the imprint material while relatively moving the discharge unit and the substrate to each other, wherein the control unit is configured to change a relative movement direction of the discharge unit and the substrate in the process in accordance with the relative tilt measured by the measurement unit so as to reduce an arrangement error of the imprint material, discharged from the plurality of discharge outlets, on the substrate.

IMPRINT APPARATUS AND METHOD OF MANUFACTURING ARTICLE
20230049521 · 2023-02-16 ·

The present invention provides an imprint apparatus that forms an imprint material pattern on a substrate by using a mold, comprising: a discharge unit on which a plurality of discharge outlets configured to discharge an imprint material are arranged; a measurement unit configured to measure a relative tilt between the discharge unit and the substrate; and a control unit configured to control a process of causing the discharge unit to discharge the imprint material while relatively moving the discharge unit and the substrate to each other, wherein the control unit is configured to change a relative movement direction of the discharge unit and the substrate in the process in accordance with the relative tilt measured by the measurement unit so as to reduce an arrangement error of the imprint material, discharged from the plurality of discharge outlets, on the substrate.

Apparatus and method for dispensing and curing of liquid media

The present invention relates to an apparatus for dispensing and curing of liquid media, comprising a supply system comprising at least one reservoir for the liquid medium, a nozzle for ejecting the liquid medium into a mould (10) and/or onto a workpiece and means (22) connecting the nozzle and the reservoir; and a microwave system (16,18) which comprises a microwave source (16) for producing microwave radiation for irradiating the liquid medium in an irradiation zone (20) in the supply system, wherein the irradiation zone (20) is arranged between the reservoir and the nozzle. The apparatus further comprises a displacement assembly for translating and/or rotating the nozzle with respect to the mould (10) and/or the workpiece in a controlled manner. According to further aspects, the invention also relates to a system and a method for dispensing and curing of liquid media.

Supports for sintering additively manufactured parts
11173550 · 2021-11-16 · ·

According to one aspect, embodiments herein provide a method of reducing distortion in an additively manufactured part comprising forming a shrinking platform from a composite including metal particles embedded in a first matrix, forming shrinking supports from the composite, forming a part from the composite upon the shrinking platform and shrinking supports, forming an interior structure in at least one of the shrinking platform, the shrinking supports, and the part having a plurality of chambers with interconnections therebetween, forming from the shrinking platform, the sintering supports, and the part a portable assembly, and debinding the first matrix in the portable assembly to form a portable assembly in a brown state, wherein debinding the first matrix includes penetrating a fluid debinder into the interior structure of the at least one of the shrinking platform, the shrinking supports, and the part to debind the first matrix from within the interior structure.

METHOD AND DEVICE FOR FILLING SEAL CAPS
20220333634 · 2022-10-20 ·

Described herein is a method for filling seal caps and also to a corresponding automated device for filling seal caps. The method for filling seal caps includes carrying out the filling of the seal caps using an automated process, where positioning a filling unit and/or positioning the seal caps by means of movement in an XYZ coordinate system as well as filling the seal caps is automated, and where the seal caps are positioned on a support plate.

Method and device for filling seal caps
11460065 · 2022-10-04 · ·

Described herein is a method for filling seal caps and a corresponding automated device for filling seal caps. The method for filling seal caps includes carrying out the filling of the seal caps using an automated process, wherein positioning a filling unit and/or positioning the seal caps by means of movement in an XYZ coordinate system as well as filling the seal caps is automated, and wherein the seal caps are positioned on a support plate.

Methods and systems for stereolithography three-dimensional printing
11400650 · 2022-08-02 · ·

The present disclosure provides method and systems for printing a three-dimensional (3D) object. A method for 3D printing may comprise providing a mixture comprising (i) a polymeric precursor, (ii) a photoinitiator configured to initiate formation of a polymeric material from the polymeric precursor, and (iii) a photoinhibitor configured to inhibit the formation of the polymeric precursor. The method may comprise exposing the mixture to (i) a first light to cause the photoinitiator to initiate formation of the polymeric material, thereby to print the 3D object, and (ii) a second light to cause the photoinhibitor to inhibit the formation of the polymeric material. During printing of the 3D object, a ratio of (i) an energy of the second light sufficient to initiate formation of the polymeric material relative to (ii) an energy of the first light sufficient to initiate formation of the polymeric material may be greater than 1.

METHODS FOR FIBER REINFORCED ADDITIVE MANUFACTURING
20210221054 · 2021-07-22 ·

Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an extrusion nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to extruding the filament from the extrusion nozzle.

SINTERABLE SEPARATION MATERIAL IN ADDITIVE MANUFACTURING

According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material.

Additive lathe that prints in cylindrical coordinates
10906243 · 2021-02-02 ·

An additive lathe integrates the advantages of additive manufacturing (also called 3d printing) with the cylindrical motion of a lathe to reduce material waste, print times, and increase creative potential. A post-processing system allows for an improved surface finishing on parts. The additive lathe no longer prints in cartesian (X, Y, Z) coordinates as other 3D printers and instead prints using cylindrical (R, Theta, Z) coordinates. The traditional bed or build plate is replaced with a horizontal cylindrical starter bar, on which 3D printed material is deposited along and around the bar. Essentially, the additive lathe works like a conventional lathe, but in reverse. Instead of taking a cylinder and slowly removing material as the part spins, the additive lathe adds material along and around the bar iteratively building up the part. The finishing mechanism allows for the creation of a smooth outer finish on printed parts while still in the printer.