| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 164045000 | Pattern making | 14 |
| 20080277090 | Investment casting cores and methods - An investment casting core combination includes a metallic casting core and a ceramic feedcore. A first region of the metallic casting core is embedded in the ceramic feedcore. The metallic casting core includes a plurality of body sections. The first region is along at least some of the body sections. The metallic casting core includes a plurality of springs spanning gaps between adjacent body sections and unitarily formed therewith. | 11-13-2008 |
| 20080302500 | REUSABLE MOLD FORMING TOOL - Embodiments of the disclosure provide methods, apparatus, and articles for making a plurality of molds described by CAD data in machine readable form using a reusable mold-forming device. Various embodiments include configuring a plurality of adjustable actuators fixed to a base of a mold-forming device, where the top surface of the adjustable actuators takes the form of the mold required to make the part described by the CAD data. The adjustable actuators may then be readjusted to form another mold surface. | 12-11-2008 |
| 20090044924 | METHOD FOR FORMING IMAGE PATTERN ON SURFACE OF METALLIC GLASS MEMBER, APPARATUS FOR FORMING IMAGE PATTERN, AND METALLIC GLASS MEMBER HAVING IMAGE PATTERN ON ITS SURFACE - A challenge of the present invention is to develop a method for repeatedly forming a reverse transferred pattern in a simple and efficient manner onto the surfaces of Zr based, Ti based, Cu based, Ni based and Fe based metallic glass that have supercooled liquid temperatures of not lower than 400° C. and are also required to be molded at not lower than 400° C. (a) An image pattern is converted into bitmap data being mirror reversed with respect to a real image, (b) high energy density light | 02-19-2009 |
| 20090065168 | LOST WAX INVESTMENT CASTING GATING FIXTURES - A method of forming a gating fixture for a lost wax casting process includes determining an optimal orientation of a gate in relation to a part, and forming a fixture that can repeatably be used to consistently locate the gate relative to the part. In one example, stereolithography is used to form the fixture. | 03-12-2009 |
| 20090133848 | One-Piece Lost Mould for Metal Castings and Method for Producing It - In the case of a one-piece lost mould for metal castings | 05-28-2009 |
| 20120031579 | Method for producing a negative mold for casting a turbine blade and mold for producing a wax model of a gas turbine - A method for producing a negative mold for casting a turbine blade with a blade platform and at least one fastening element for fastening the turbine blade to a blade fixture is provided. The surface of the fastening element of a platform surface is located at a distance opposite of the blade platform. A wax model of the turbine blade to be produced is produced, a negative model of the turbine blade is created based on the wax model after the wax model has hardened and the wax model is melted out after completion of the negative mold. During hardening and/or during storage and/or during transport of the wax model at least one spacer is arranged between the platform surface of the blade platform and the opposite surface of the fastening element of the wax model. | 02-09-2012 |
| 20120055647 | Airfoil Casting Methods - In the castings of a turbine element, a sheet casting core is assembled to a feedcore. The sheet casting core and feedcore are placed in a die. A sacrificial pattern material is molded over the casting core and feedcore to form a pattern including an airfoil. The sheet casting core extends from at or adjacent a trailing edge of the airfoil. The sheet casting core has a first array of open areas and a second array of portions interspersed with the open areas. A first portion of the die has a third array of projections contacting the second array. | 03-08-2012 |
| 20120180972 | METHOD OF LOST-WAX MANUFACTURE OF AN ANNULAR BLADED TURBOMACHINE ASSEMBLY, METAL MOULD AND WAX MODEL FOR IMPLEMENTING SUCH A METHOD - A method of manufacture of a wax model of an annular bladed turbomachine stator assembly includes in succession the positioning, in a mould, of a core intended to form the impression of a cavity of a blade of the assembly, the injection of a wax in the mould, and the removal of the wax model fitted with the core from the mould. The core is manufactured in metal and is positioned such that its radially internal end is housed in the portion of the mould defining the blade including the cavity, away from the radially internal end of this portion of the mould. | 07-19-2012 |
| 20120186769 | METHOD AND APPARATUS FOR CREATING A PATTERN - A method and apparatus for creating a pattern of an item of manufacture, the method and apparatus including the use of a mold frame, mold, mold core, injection frame and injection core to create patterns of items of manufacture for investment casting. | 07-26-2012 |
| 20130174996 | FOAM PATTERN TECHNIQUES - Various techniques are provided for creating fugitive foam patterns for use in investment casting operations. In certain illustrative embodiments, a fugitive foam pattern is assembled from independently formed portions. A first section is formed in a mold. Once cured, a mating surface of the first section is exposed to the cavity of a second mold and the section is formed. The second section integrally adheres to the first section. The process is repeated as necessary. In alternative embodiments, a channel is created in a foam pattern using a temporary core that is removed without chemical leaching. The core material comprises water-soluble materials, acid-soluble materials, low-melting point materials, or a combination thereof. A pattern may also be created by inserting foam around a core that remains with the foam pattern. | 07-11-2013 |
| 20130333855 | INVESTMENT CASTING UTILIZING FLEXIBLE WAX PATTERN TOOL FOR SUPPORTING A CERAMIC CORE ALONG ITS LENGTH DURING WAX INJECTION - An investment casting process wherein the wax pattern tool ( | 12-19-2013 |
| 20140262108 | METHOD OF MAKING A RADIAL PATTERN ASSEMBLY - A method of making a radial pattern assembly is disclosed. The method includes forming a hollow sprue comprising a sprue wall disposed about a longitudinal axis, the sprue wall having a thickness, a length and a periphery; a pattern disposed outwardly of the sprue wall; and an outwardly extending gate attached to and extending between an outer surface of the sprue wall and the pattern, the hollow sprue, pattern and gate each formed from a fugitive material. | 09-18-2014 |
| 20140284016 | Systems and Methods for Undercut Features on Injected Patterns - A method for creating undercut features in a wax pattern in an investment casting process is disclosed. The method comprises designing a tooling that includes a mold for an object with an aperture and a core corresponding in size and shape of the aperture. Then, the mold is used to injection mold a pattern for the object, wherein the pattern includes an opening corresponding to the aperture. Next, a plug from the core of the tooling is injection molded using the mold. The plug is press-fitted into the opening of the pattern and the opening of the pattern is sealed with the plug. | 09-25-2014 |
| 20160158834 | Castings and Manufacture Methods - A method for casting an article comprises a first region and a second region. The method comprises casting an alloy in a shell, the shell having a casting core protruding from a first metal piece; and deshelling and decoring to remove the shell and core and leave the first region formed by the first piece and the second region formed by the casted alloy. | 06-09-2016 |
