Patent classifications
B29C33/38
Heated composite tool and method for building and use
A heated composite tool, useful for forming, debulking, and/or curing prepreg materials, including a composite build structure having a shape of a composite part that is to be produced, configured to receive and support prepreg materials during lay-up, and including a heating structure physically coupled to the composite build structure, and comprising at least one heating element, including a carbon nanotube structured layer defining a current path having first and second ends and first and second electrical terminals electrically coupled to the first and second ends and a first isolation ply disposed between the composite build structure and the at least one heating element, the first isolation ply forming an electrical insulating gap between the at least one heating element and the composite build structure, wherein the carbon nanotube structured layer is responsive to an electromotive force applied across the first and second electrical terminals to heat the tool.
METHOD FOR PRODUCING A MOULD SEGMENT OF A VULCANIZING MOULD, MOULD SEGMENT, AND VULCANIZING MOULD
A method for producing a mold segment of a vulcanizing mold for a pneumatic vehicle tire for forming the profiling of a tread, having a metallic base part (6) with a mold side with ribs (3) which form channels encircling or delimiting profile elements.
A rib skeleton (8) consisting of ribs (8′), the arrangement and the profile of which at least partially corresponds to the arrangement and the profile of ribs (3) forming channels, is milled from the base part (6),
inserts (7) with peripheral frame parts (7b) are built up by means of an additive method,
the inserts (7) being inserted into the rib skeleton (8) and the frame parts (7b) completing the ribs (8′) of the rib skeleton (8) to form the ribs (3) forming the channels.
ON-THE-FLY MOLDING
A method of fabricating an object from a heat curable polymer such as silicone is provided. The method is carried out by using additive manufacturing to fabricate a portion of a mold and filling the portion of the mold with the heat curable polymer. The polymer is then heated and the steps of mold fabrication and filling are repeated until the object is fabricated.
METHOD FOR MANUFACTURING MICRONEEDLE ARRAY
Provided is a method for manufacturing a microneedle array, which enables efficient and stable manufacturing of a microneedle array including a needle-shaped protrusion having a constricted shape. The method for manufacturing a microneedle array includes: a first cutting step of forming a needle-shaped protrusion by cutting a base material by a first cutting tool; a second cutting step of forming a constricted shape in the needle-shaped protrusion by cutting a part of the needle-shaped protrusion by a second cutting tool different from the first cutting tool; a mold forming step of molding, from a plate precursor manufactured through the first cutting step and the second cutting step, a resin mold having a needle-shaped hole which has an inverted shape of the plate precursor; a first array manufacturing step of filling the needle-shaped hole of the resin mold with a drug solution and then drying the drug solution; a second array manufacturing step of filling the needle-shaped hole with a base material solution and drying the base material solution, after the first array manufacturing step; and a peeling step of peeling, from the resin mold, a microneedle array manufactured by the resin mold.
Mold tools with anisotropic thermal properties and aligned carbon-reinforced thermoplastic fibres
One embodiment is an apparatus including a mold configured to manufacture a composite structure at a heated temperature. The mold includes a first mold tool configured to mold a first portion of the composite structure, wherein the first mold tool comprises a plurality of strands of a fiber-reinforced thermoplastic material, wherein the fiber-reinforced thermoplastic material comprises a thermoplastic embedded with a plurality of reinforcement fibers, wherein the plurality of reinforcement fibers is aligned within each strand of the plurality of strands; and an anisotropic thermal expansion property, wherein the anisotropic thermal expansion property is based on an orientation of the plurality of reinforcement fibers within the first mold tool; and a second mold tool configured to mold a second portion of the composite structure.
METHOD FOR MANUFACTURING BOWL AND GLASS BOWL
A method for manufacturing a bowl and a glass bowl are disclosed. A high borosilicate glass bowl is manufactured with high borosilicate glass, which has characteristics of high hardness, high light transmittance, high chemical stability, cold and hot shock resistance, and the like. A radian of a bottom is measured by a laser scanner, so that an accurate molding die can be manufactured by a numerical control machine tool. A solid rubber compound is mixed by a mixing mill, and then a vulcanizing agent and a silica gel masterbatch are added to obtain a silicone rubber raw material. The silicone rubber raw material is taken out according to a preset weight, then put together with the high borosilicate glass bowl into a molding vulcanizer. Vulcanization compression molding is performed to obtain a high borosilicate glass bowl with an anti-slip silica gel bottom.
Methods of manufacturing and inspecting customized dental appliances
A method includes obtaining image(s) of a dental device, determining file(s) including at least one of a first model of the dental device or a second model of a mold, determining an intended property for the dental device based on at least one of the first model or the second model, and determining an actual property of the dental device from the image(s). The method further includes determining whether a cutline variation, an arch variation, and/or a bend of the dental device is detected between the dental device and the first model and/or the second model by comparing the intended property with the actual property. The method further includes determining whether there is a possible defect in the dental device based on whether the cutline variation exceeds a cutline variation threshold, the arch variation exceeds an arch variation threshold, and/or the bend exceeds a bend threshold.
Fabrication method of transparent 3D polydimethylsiloxane devices with polycaprolactone molds
A method of forming a model of a porous structure includes three dimensionally printing a mold of the porous structure using a polycaprolactone mold material, filling the mold with a polymer mixture, and heating the filled mold at a temperature above a melting temperature of the mold material to cure the polymer mixture, where the cured polymer mixture forms the model of the porous structure.
Edge exclusion apparatus and methods of using the same
A method of deposition is disclosed. The method can include dispensing a formable material over a substrate, where the substrate includes a non-uniform surface topography, and where the substrate includes an active zone and an exclusion zone. The method can also include curing the formable material in the exclusion zone to form a circular edge between the exclusion zone and the active zone, contacting the formable material with a superstrate, and curing the formable material in the active zone to form a layer over the substrate, wherein curing is performed while the superstrate is contacting the formable material.
Negative pressure driven sucking disc for annular wedge-shaped microstructure and preparation method of negative pressure driven sucking disc
Disclosed are a negative pressure driven sucking apparatus and a preparation method thereof. The sucking apparatus comprises a sucking disc body, wherein a negative pressure cavity is formed in the middle of the sucking disc body, and the negative pressure cavity is connected with a vacuum line, and the bottom of the negative pressure cavity having a flexible section, and an annular wedge-shaped microstructure is formed at the bottom of the body surrounding the flexible section. Stable loading and release processes of the annular wedge-shaped microstructure are realized.