Class / Patent application number | Description | Number of patent applications / Date published |
072342940 | Distinct temperature modifications at distinct locations of workpiece | 18 |
20080202189 | UPSETTING METHOD AND UPSETTING APPARATUS - To provide an upsetting method capable of efficiently expanding a bar-shaped raw material at least two portions. A plurality of guides | 08-28-2008 |
20100218580 | METHOD FOR THREE-DIMENSIONALLY BENDING WORKPIECE AND BENT PRODUCT - A method for three-dimensionally bending a workpiece comprises feeding the workpiece by a feeding unit provided at an upstream side of the workpiece, supporting the workpiece by a supporting unit at a downstream side of the feeding unit, processing the workpiece by clamping the workpiece with a three-dimensionally movable unit that is provided downstream of the supporting unit, heating a local part of the workpiece in a temperature range which allows quenching to be performed, applying a bending moment to the heated local part of the workpiece by the three-dimensionally movable unit in association with the supporting position and/or the moving speed of the workpiece after the heating step, and rapidly quenching the heated portion. Even when a high-strength workpiece is bent, it is possible to effectively obtain a product having excellent shape fixability and uniform hardness distribution at low costs for wide application for bending sophisticated automobile parts. | 09-02-2010 |
20110030442 | METHOD FOR SHAPING FROM A BLANK OF A HARDENING MATERIAL WITH DIFFERENTIAL COOLING - The invention relates to a drawing tool ( | 02-10-2011 |
20110048096 | EMBOSSED SHAPE MEMORY SHEET METAL ARTICLE - Electromagnetic forming methods suitable for creating surface features on a shape memory alloy are described. Features may be created over a range of scales, including those suitable for the generation of holographic images. Features, images, or patterns may be made capable of reversibly appearing and disappearing as a result of changes in temperature and may include temperature sensitive displays for automotive and other applications. | 03-03-2011 |
20110265542 | METAL SHEET PRESSING METHOD - This invention provides a metal sheet pressing method of precision-pressing a metal sheet, wherein after a metal sheet ( | 11-03-2011 |
20120312065 | METHOD OF FORMING AN ARTICLE FROM METAL ALLOY SHEET MATERIAL - A method of forming an article from a metal alloy sheet material includes stamping the metal alloy sheet material to thereby form a preform having at least one protrusion. The at least one protrusion includes a base portion, a first region having a first thickness and spaced apart from the base portion to thereby have a first maximum height, and a second region interconnecting the base portion and the first region and having a second thickness that is greater than the first thickness. After stamping, the method includes selectively annealing the second region without substantially annealing the first region, and, after selectively annealing, concurrently increasing the first maximum height and substantially equalizing the first thickness and the second thickness to thereby form the article. | 12-13-2012 |
20130180304 | "MULTI-EFFECT" FORMING TOOLING FOR HIGH-TEMPERATURE FORMING - A forming tooling including a fixed part and a moving part set in action by a one-way press, in a first direction, the tooling varying between an open position and a closed position in which the moving part applies pressure to the fixed part; the moving part including moving dies capable of starting to deform the metal workpiece through a translational movement of the dies in a second direction simultaneous with the translational movement of the dies in the first direction during closure of the tooling, the moving dies being capable of moving away from the metal workpiece through a reverse translational movement of the moving dies, in the second direction, simultaneously with the translational movement of the moving dies in the first direction during opening of the tooling. | 07-18-2013 |
20130239643 | METHOD AND SYSTEM FOR RADIALLY EXPANDING A TUBULAR ELEMENT - The invention relates to a system and method for radially expanding a tubular element ( | 09-19-2013 |
20140144199 | CLOSED-DIE FORGING METHOD AND METHOD OF MANUFACTURING FORGED ARTICLE - Provided are: a closed-die forging method capable of preventing a temperature decrease in a to-be-forged member during forging, easy temperature monitoring during forging, and causing cavity end portions of a die to be filled with the to-be-forged member; and a method of manufacturing a forged article using the closed-die forging method. The closed-die forging method, which involves placing a heated to-be-forged member on a lower die and hammer-forging the to-be-forged member with a reciprocating upper die, includes covering the whole of a portion of the to-be-forged member that contacts the lower die with a metal heat-insulation member prior to forging, except for at least a part of a portion that contacts an upper die during forging, and then forging the to-be-forged member integrally with the metal heat-insulation member. Preferably, the to-be-forged member is a superalloy and the metal heat-insulation member is stainless steel. Further preferably, the to-be-forged member is forged into a disk shape. The method of manufacturing a forged article includes heat-treating a forged material obtained by the closed-die forging method at temperatures not lower than recrystallization temperature. | 05-29-2014 |
20140190234 | Method for Producing a Press-Hardened Molded Part, and Press-Hardening Tool - The invention relates to a method that is used to produce a press-hardened molded part ( | 07-10-2014 |
20160008862 | METHOD FOR MANUFACTURING DRIVE SHAFT | 01-14-2016 |
20160144588 | METHOD FOR WARPING THE MACHINE BED AND/OR THE PRESS RAM OF A PUNCHING PRESS AND PUNCHING PRESS - The invention relates a method for warping the machine bed and/or the press ram of a punching press to compensate at least partially a bending caused by the punching force of the machine bed or the press ram during punching operation, respectively. For this a temperature gradient is generated selectively within the machine bed and/or within the press ram according to the invention, with the effect of making the machine bed warping in the direction towards the press ram and/or the press ram warping in the direction towards the press bed. | 05-26-2016 |
20160200041 | METHOD AND APPARATUS FOR PRODUCING JOINING REGIONS OF COMPOSITE SHEETS | 07-14-2016 |
072342960 | By passing electric current through work | 5 |
20080257007 | METHOD AND APPARATUS FOR FORMING A BLANK AS A PORTION OF THE BLANK RECEIVES PULSES OF DIRECT CURRENT - A method is provided for forming a sheet metal blank or tubular blank in a metal forming tool, such as a sheet metal press or a media forming tool. The sheet metal press has an upper die and a lower die that are moved by a press to form the metal blank. The forming tool has a plurality of electrodes that are connected in an electrical circuit to a source of direct current. The electrodes provide pulses of the electric current to at least a portion of the blank. The method comprises loading the blank into the forming tool and closing the upper die and the lower die. The electrical circuit is completed between multiple electrodes through one or more portions of the blank. Electrical current is pulsed intermittently through the blank in a plurality of pulses. | 10-23-2008 |
20090044590 | SINGLE POINT INCREMENTAL FORMING OF METALLIC MATERIALS USING APPLIED DIRECT CURRENT - A method for forming a sheet metal component using an electric current passing through the component is provided. The method can include providing a single point incremental forming, the machine operable to perform a plurality of single point incremental deformations on the sheet metal component and also apply an electric direct current to the sheet a metal component during at least part of the forming. The direct current can be applied before or after the forming has started and/or be terminated before or after the forming has stopped and can reduce the magnitude of force required to produce a given amount of deformation, increase the amount of deformation exhibited before failure and/or reduce any springback typically exhibited by the sheet metal component. | 02-19-2009 |
20140033787 | FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE - An apparatus and method of uniformly heating, rheologically softening, and thermoplastically farming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of less than 1 second. | 02-06-2014 |
20140352389 | FORGING PRESS DEVICE FOR VALVE - A forging press device for valve including an upsetter in which a plurality of primary forming stages are provided, a forging press main body adjacent to the upsetter, that secondarily forms a primary formed workpiece, and a workpiece conveyance/carry-in device which grips and conveys the workpiece, to carry it into the forging press main body, the device in which the workpiece conveyance/carry-in device is composed of a high speed multi jointed robot capable of circling around a vertical shaft, which has an arm (a chuck) gripping the workpiece. In accordance with the invention, it is possible to provide a forging press device for valve in which the number of deliveries of workpiece from the upsetter to the forging press main body is decreased, which speeds up a valve forging line, and improves the production efficiency. | 12-04-2014 |
20160008870 | MECHANICALLY TUNED RAPID DISCHARGE FORMING OF METALLIC GLASSES | 01-14-2016 |