摘要:
Methods for manufacturing an ophthalmic lens with an insert using voxel-based lithography techniques, wherein at least a portion of one surface may be free-formed from a reactive mixture are set forth herein. An ophthalmic lens precursor may be formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of reactive mixture, wherein the control may be on a voxel by voxel basis.
摘要:
Systems (10) for cure control of additive manufacturing comprise a build volume (12), a curing energy source (16), and a controller. The curing energy source (16) is configured to actively deliver curing energy (18) to discrete sections of a part (14) as it is being additively manufactured. The controller is programmed to direct delivery of curing energy (18) to impart desired cure properties to the discrete sections and/or according to predetermined cure profiles for the discrete sections. Methods of additively manufacturing a part (14) comprise additively building a part (14) from a feedstock material, and actively curing discrete sections of the part (14) as it is being additively built to impart desired cure properties to the part (14) and/or desired cure profiles to the part (14).
摘要:
Methods for manufacturing an ophthalmic lens with an insert (521) using voxel-based lithography techniques, wherein at least a portion of one surface may be free-formed from a reactive mixture (531) are set forth herein. An ophthalmic lens precursor may be formed on a substrate with an arcuate optical quality surface via a source (542) of actinic radiation controllable to cure a definable portion of a volume of reactive mixture, wherein the control may be on a voxel by voxel basis.
摘要:
System for forming a micro-truss reinforced structural member (10, 12) which includes a first collimated light source (14) and a reservoir (20) containing a volume of photo-monomer resin (18) wherein the first collimated light source (14) is positioned spaced apart from the photo-monomer resin (18). The system further includes a first face sheet structure (24) defining at least one bore (26) which extends through the first face sheet structure (24) wherein a portion of the first face sheet structure is positioned under a surface of the volume of photo-monomer resin such that photo-monomer resin (18) is positioned within the bore (26).
摘要:
A composite structure curing system employs a plurality of heaters (12) mounted in at least one array in spaced proximity to a composite structure (16) to be cured. A plurality of temperature sensors (20) are mounted to sense temperature at selected locations on the structure (16). A control system (22) receives an input from each of the plurality of temperature sensors (20) and is adapted to control each of the plurality of heaters (12) responsive to each input to establish a predetermined temperature profile on the structure (16) during cure.(Fig. 3A)
摘要:
A neck crystallization method that reduces the crystallization time while preventing a situation in which a neck is overheated, crystallizes a neck of a preform that includes the neck (101), a body (102), and a bottom (103). The neck crystallization method includes inserting a core (110) into the neck, heating the neck using a heater group disposed along a transfer direction while rotating the preform on its axis, and transferring the preform along the transfer direction in a state in which the core is inserted into the neck, and cooling the neck of the preform in a state in which the core is inserted into the neck. The heating of the neck includes a first step that drives first heaters (200-1) positioned on the upstream side in the transfer direction at a first power, and a second step that drives second heaters (200-2) positioned on the downstream side of the first heaters at a second power that is lower than the first power until the temperature of the neck reaches a crystallization temperature zone.
摘要:
Die vorliegende Erfindung betrifft eine Anlage zur generativen Herstellung und/oder Reparatur von Bauteilen, insbesondere von Gasturbinen, mit einem Verfestigungsmittel (3) zum schichtweisen, lokalen, insbesondere optischen, thermischen und/oder chemischen, Verfestigen von, insbesondere pulverförmigem, körnigem und/oder flüssigem, Material, und einem Elektroabscheidemittel (1.1, 7-10) zum elektrostatischen Abscheiden von Partikeln (6) und/oder Gas aus einem Bereich zwischen einer zu verfestigenden und/oder verfestigten Schicht (2.1) des Materials und dem Verfestigungsmittel (3) sowie ein Verfahren zur generativen Herstellung und/oder Reparatur von Bauteilen, insbesondere von Gasturbinen, mittels einer solchen Anlage.