Abstract:
Manufacturing a pre-molded stack of one or more lenses to be installable on a curved substrate such as a vehicle windshield includes placing a moldable stack of one or more lenses and adhesive layer(s) on a mold, applying heat and pressure to the moldable stack to produce a pre-molded stack of one or more lenses from the moldable stack, and removing the pre-molded stack from the mold. The pre-molded stack may have a compound curvature, which may match a curvature of the curved substrate. The mold may be formed using three-dimensional shape data derived from the curved substrate, such as by optically scanning the curved substrate.
Abstract:
Manufacturing a pre-molded stack of one or more lenses to be installable on a curved substrate such as a vehicle windshield includes placing a moldable stack of one or more lenses and adhesive layer(s) on a mold, applying heat and pressure to the moldable stack to produce a pre-molded stack of one or more lenses from the moldable stack, and removing the pre-molded stack from the mold. The pre-molded stack may have a compound curvature, which may match a curvature of the curved substrate. The mold may be formed using three-dimensional shape data derived from the curved substrate, such as by optically scanning the curved substrate.
Abstract:
In a method for producing an implant from a biocompatible silicone, a 3D mathematical model of an implant to be produced is used to create a 3D model of a casting mold for the implant as a negative. The casting mold is produced from a polymeric material through an additive manufacturing process and coated through vapor deposition of a coating material from the parylene family at least in a region that comes into contact with the biocompatible silicone to be cast. A platinum-catalyzed 2-component thermosetting silicone as the biocompatible silicone for the implant is introduced into a mold cavity of the coated casting mold, with a residence time of the implant in a patient's body of more than 29 days. The casting mold is heated to vulcanize the biocompatible silicone, and after cooling down the vulcanized implant is demolded from the casting mold.
Abstract:
Disclosed is a conformal cooling channel design method using a topology optimization design. The conformal cooling channel design method using a topology optimization design according to an embodiment of the present invention includes the steps of: classifying a molded product as a thin structure or a bulk structure, and determining a cooling target area; decomposing the cooling target area into cooling target surfaces of two-dimensional shape; forming cooling channels independent from each other using a topology optimization design for each of the cooling target surfaces; and forming a conformal cooling channel by combining the cooling channels. According to the present embodiment, there is provided a method of designing a conformal cooling channel inside a mold after determining a cooling target surface by classifying the shape of a molded product as a bulk structure or a thin structure and forming an independent cooling channel for each cooling target surface using a topology optimization design.
Abstract:
This disclosure concerns a master model for the production of a mold, comprising: (a) a first part, a second part comprising a textured surface; wherein the first part and the second part are connected.
Abstract:
Extrusion apparatus and methods for use in the design and operation of extrusion screws having multiple channels. In response to rotation of an extrusion screw in an extrusion process, the multiple channels of the extrusion screw can control the temperature, pressure, and/or shear rate of feedstock material flowing through the respective channels. The multiple channels of the extrusion screw can be configured to control the temperature, the pressure, and/or the shear rate of the processed feedstock material by being modeled as one or more model objects having one or more predetermined geometries. The models of the respective channels can then be analyzed using computerized analytical and/or numerical techniques in order to obtain at least estimates of desired temperatures, pressures, and/or shear rates of the processed feedstock material, based at least on specified channel lengths, channel widths, and/or channel depths of the respective channel models.
Abstract:
A method for forming a scene into a floor mat or floor liner, comprising the steps of: receiving a digital image comprised of a plurality of pixels, each pixel having an initial pixel value and a relative position in the digital image; assigning either a first value or a second value to each pixel according to the initial pixel value of each pixel; creating a mold having a surface with a plurality of raised portions, wherein the relative shape, dimension, and position of each raised portion, with respect to each other raised portion, is defined by the relative position, within the digital image, of at least one pixel having the assigned first value.
Abstract:
A system and method for the manufacture of wind turbine blade moulds and wind turbine blade mould plugs is described. The method comprises dividing a blade mould geometry (70) or plug geometry into separate geometrical slices or segments. The separate slices can then be used to control a cutting of blank elements (78) to form separate cut surfaces (82). The cut surfaces are used to form a consolidated wind turbine mould surface.
Abstract:
A method for fabricating a product, such as an animatronic character, with artificial skin. The method includes providing data defining an exterior surface geometry of the product. A base geometry model of the product is generated based on the exterior surface geometry data, which in turn is used to fabricate a prototype of the product. Then, an exterior skin mold is formed using the product prototype mounted on an alignment block. The method includes fabricating an inner support structure based on the base geometry model having an exterior geometry smaller than the 3D base geometry model by the thickness of the exterior skin. The inner support structure is positioned within the mold with the inner support structure mounted upon the alignment block, which is received in the mold. The product is formed by pouring material for an exterior skin layer into the mold and over the inner support structure.
Abstract:
A three-dimensional lattice architecture with a thickness hierarchy includes a first surface and a second surface separated from each other with a distance therebetween defining a thickness of the three-dimensional lattice architecture; a plurality of angled struts extending along a plurality of directions between the first surface and the second surface; a plurality of nodes connecting the plurality of angled struts with one another forming a plurality of unit cells. At least a portion of the plurality of angled struts are internally terminated along the thickness direction of the lattice structure and providing a plurality of internal degrees of freedom towards the first or second surface of the lattice architecture.