Methods for forming optical articles with antireflective nanostructured (ARN) surfaces. An aluminum layer is deposited or otherwise applied to the cavity of an injection mold tool. Sequential chemical treatments such as anodization and etching steps form an ARN mold texture on the interior surface of the cavity. The ARN mold texture is a negative of a desired surface texture of the article. During injection molding, the desired ARN surface is thereby produced in the optical article.

A method for manufacturing a golf ball having a core and a cover of at least one layer includes the step of molding the cover layer with a vertically separating two-part injection mold which has a spherical cavity and three or more support pins disposed so as to be capable of advancing and retracting in a direction perpendicular to a mold parting line, each support pin being housing in a pin housing hole having a nitrided inner peripheral sidewall. This method enables a golf ball cover material to be molded using an injection mold which, because a thick plating of hard chrome does not need to be applied to the inner peripheral sidewalls of the holes housing the support pins, is inexpensive and in which the pin housing holes have a good abrasion resistance.

In one embodiment, a system for conditioning a preform for molding includes a heating cavity for receiving the preform, a heater configured to heat a gas, and a blower configured to force the gas heated by the heater into the heating cavity. In another embodiment, a method of conditioning a preform for molding includes positioning the preform in a heating cavity and forcing a heated gas into the heating cavity onto an exterior surface of the preform.

An actuator system for use in a mold system includes a first actuator operatively coupled to a first mold portion and configured to move the first mold portion along an axis in a first direction from a first molding position toward a first ejecting position. The system also includes a second actuator operatively coupled to a second mold portion and configured to move the second mold portion along the axis in the first direction from a second molding position toward a second ejecting position. The system further includes a controller in communication with the first and second actuators and configured to independently activate the first and second actuators.

A system for molding an object includes an articulated mold having an axis and a plurality of mold portions configured to collectively define a molding cavity for shaping the object when arranged in respective molding positions. The system includes a plurality of actuators, each operatively coupled to a respective mold portion and configured to move the respective mold portion along the axis from the respective molding position toward a respective ejecting position for releasing the object. The system includes a controller in communication with each of the plurality of actuators and configured to independently activate each of the plurality of actuators such that one of the plurality of mold portions moves along the axis from the respective molding position toward the respective ejecting position while at least one other of the plurality of mold portions remains stationary relative to the object in order to at least partially support the object.

A resin molding has a first surface and a second surface, wherein the second surface includes a rib, and wherein the first surface includes a glossy portion and a non-glossy portion.

A system and manufactures are provided that augment various manufacturing processes by combining skinning techniques, for example from additive manufacturing methods, with modular substructures in order to provide cost and development time saving while not sacrificing end product material characteristics. Modular substructures provide a range of benefits from wide adaptability and reusability, to customized cooling channels within tooling systems. Manufacturing tooling areas afforded improvements span from stamping to injection molding.

A decorative assembly (20) includes a translucent part (26) overlaying a portion of a chromed visible surface (24) of a base part (22) to define a first visible portion (28) of the chromed visible surface (24) not covered by the plastic layer and a second visible portion (30) of the chromed visible surface (24) covered by but visible through the translucent part (26) for allowing the chromed visible surface (24) to be freely exposed along the first visible portion (28) and for allowing light to pass through the translucent part (26) and reflect off the second visible portion (30) of said chromed visible surface (24). At least one of the second visible portion (30) of the chromed visible surface (24) or the translucent part (26) includes a three-dimensional texture (32) to redirect the light reflected off the second visible portion (30) of the chromed visible surface (24).

A filter element has a mat-type or sheet-type filter web (3) forming by its outside (5) at least in part a filter jacket (7). Along the outside (5) of the filter jacket (7), a surface configuration or modification takes place with structures (11) being delimited from the remaining surface (9) of the filter web (3), being joined to the filter jacket (7) and being of presettable contour and/or thickness. The structures (11) are generated by spray-fiber application and shaping, in such a manner that in time sequence, first the structures (11) and then the filter jacket (7), or in reverse order in time sequence, first the filter jacket (7) and then the structures (11), or that simultaneously both the filter jacket (7) and the structures (11) are formed in negative or positive shape on the filter jacket (7). The production of the filter element and a shaping device used in this production process are disclosed.

The invention relates to a stencil for forming surfaces structures by etching, a method for producing a stencil for forming surfaces structures by etching, a printing machine for producing a stencil for forming surface structures by etching, and a method for forming surface structures by etching. A known stencil for forming surface structures by etching includes an etching-resistant stencil layer. The stencil layer can be transferred to the surface to be structured, and the stencil layer can after an etching treatment be partially removed from the surface to be structured, and is elaborated and developed in that the stencil layer includes at least two partial regions and that at least two partial regions can be removed independently of one another from the surface to be structured.