| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 072356000 | With additional metal-deforming | 30 |
| 20080245126 | Method of Stamping Multilayer Sheets - A method includes providing a sheet having layers characterized by different softnesses, providing a die component having a leading surface that is generally concave, and causing the leading surface to puncture the sheet thereby to cut a part from the sheet. The method provides improved flatness of parts cut from sheets having layers of varying softness and prevents soft material from exiting the sheet because the peripheral edge of the leading surface applies maximum pressure to the sheet during the puncturing step. | 10-09-2008 |
| 20080250839 | METHOD AND APPARATUS FOR MANUFACTURING A LEGGED ANNULAR MEMBER - A method and apparatus for manufacturing a legged annular member. In one aspect, a work member is formed from a ring-like raw material, and has an annular part and an outer wall part, which is formed from a leg part and a connecting part. The connecting part is removed from the work member to form an intermediate legged annular member having an annular part and a leg part. An inner diameter of the leg part of the intermediate legged annular member is expanded while a burr is removed to form a carrier, which serves as a legged annular member. Therefore, the number of manufacturing processes until completion of the carrier can be reduced, compared to performing separate processes to expand the diameter of the leg part and remove the burr. Thus, it is possible to shorten the period of time needed for completion of the carrier. | 10-16-2008 |
| 20090126449 | ROUGHLY SHAPED MATERIAL FOR FORGING, FORGED PRODUCT, APPARATUS FOR MOLDING ROUGHLY SHAPED MATERIAL FOR FORGING, AND METHOD OF MOLDING ROUGHLY SHAPED MATERIAL FOR FORGING - A forging stock formed by extrusion such that its cross section perpendicular to the direction of extrusion varies along the direction of extrusion. The forging stock is cut into portions in the direction of extrusion to be forged individually, each cut portion having cross sections varying along the direction of extrusion. Each cut portion includes a pair of first parallel parts at both ends thereof in the direction of extrusion, a second parallel part, which is between the first parallel parts, and which differs in thickness from said first parallel parts, and oblique parts each of which is between the first parallel parts and the second parallel part. | 05-21-2009 |
| 20090183546 | METHOD FOR COLD FORGING HIGH STRENGTH FASTENER WITH AUSTENITIC 300 SERIES MATERIAL - The present invention pertains to a method for cold forging high strength fastener with austenitic 300 series material comprising the procedures of initially preparing a raw austenitic shaft and then proceeding through a cold forging method to reduce its diameter for thereafter generating a preliminary shank, which can undertake above ½ force more than the raw shaft; further passing through the following formations of the head, the drilling portion and threads in sequence to build an integral fastener. Thus, the entire cold forging facilitates to fabricate the fastener with high strength and hardness by lower manufacturing cost and with effective corrosion resistance, so as to firmly drill the fastener into objects and increase the screwing security. | 07-23-2009 |
| 20090217730 | UPSETTING METHOD AND UPSETTING APPARATUS - An upsetting method capable of eliminating a correction step by preventing occurrence of quench distortion is provided. The method includes the step of preparing an upsetting apparatus | 09-03-2009 |
| 20090241629 | METHOD OF PRODUCING A STEPPED SHAFT - A method for forming a stepped shaft includes: forming a billet of a predetermined mass; heating the billet; cross-wedge rolling the billet to form an intermediate workpiece having a first cylindrical portion and a second cylindrical portion that are axially spaced apart by a neck that is smaller in diameter than the first and second cylindrical portions; and performing at least one upset forging operation on the end of the intermediate workpiece to enlarge the first cylindrical portion such that in at least one location its diameter is larger than a diameter of any other portion of the stepped shaft and larger than a diameter of the billet. | 10-01-2009 |
| 20090260410 | Apparatus and Method for Manufacturing Sprocket Segment - Disclosed therein are an apparatus and method for manufacturing a sprocket segment, which can manufacture the sprocket segment through a simplified process including hot precision forging, through hardening and painting, thereby reducing manufacturing period and cost and securing competitive power. The sprocket segment manufacturing method includes: a primary hot forging process of putting a heated billet in a booster die ( | 10-22-2009 |
| 20100180658 | CRANKSHAFT PRODUCTION METHOD AND PRODUCTION APPARATUS - A crankshaft production method includes: pressurizing both end portions of a shaft blank with a pressurization surface of a die, the pressurization surface being inclined in a specific direction so as to come close to the other end side of the shaft blank, and applying an axial compressive load to the shaft blank, while restricting a radial deformation in a predetermined zone of the shaft blank in a direction other than the specific direction, thereby swaging the shaft blank and causing the predetermined zone to buckle in the specific direction. | 07-22-2010 |
| 20100186476 | Stamping device and stamping method - The present application provides a technique for simultaneously bending and drawing. | 07-29-2010 |
| 20100236317 | METHOD FOR FORMING ARTICLES AT AN ELEVATED TEMPERATURE - A method for hot/warm forming an article that includes heating a billet in a first heater; forging the heated billet in a forging die to form an intermediate workpiece; removing the intermediate workpiece from the forging die while a temperature of the intermediate workpiece is greater than or equal to a predetermined elevated temperature of 1,000 degrees F; and heat treating the intermediate workpiece before the intermediate workpiece has cooled below the predetermined elevated temperature. | 09-23-2010 |
| 20100275671 | FORMING APPARATUS AND FORMING METHOD - A forming apparatus to bend a plate-shaped material, including: a first forming device to bend one surface of the plate-shaped material not more than 180 degrees by pressing the plate-shaped material; a second forming device to bend another surface of the plate-shaped material not more than 180 degrees by pressing the plate-shaped material; wherein the first and the second forming device perform bending while changing a relative position by interlocking with each other. | 11-04-2010 |
| 20110030444 | METHOD OF MAKING A COMPENSATION SHAFT - A method of making a compensation shaft ( | 02-10-2011 |
| 20110113850 | NEAR NET SHAPE FORGING PROCESS FOR COMPRESSOR AND TURBINE WHEELS AND TURBINE SPACER WHEELS - A forging method including extruding a billet to form a ring shaped hollow workpiece; reducing a cross section of the workpiece; and forging the workpiece in a closed die having a first split die including a plurality of first die segments and a second split die including a plurality of second die segments by sequentially advancing pairs of opposing die segments from the first split die and second split die towards each other. | 05-19-2011 |
| 20110146365 | METHOD FOR MANUFACTURING AN ORTHOPEDIC IMPLANT - The present disclosure relates to a method for manufacturing an orthopedic implant. The method includes providing a blank adapted to be formed into an orthopedic implant, forging the blank to form an intermediate component, and bending the forged component to form a pre-finished component. | 06-23-2011 |
| 20110192210 | SHAFT MEMBER FOR FLUID LUBRICATION BEARING APPARATUSES AND A METHOD FOR PRODUCING THE SAME - A low-cost shaft member for hydrodynamic bearing apparatuses restores the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage. A shaft material integrally having a shaft portion and a flange portion with a through-hole between both end faces of the flange portion is formed in a common forging step. As a result, the through-hole is formed to open to an inner diameter side of the bearing gaps avoiding the thrust bearing gaps formed on both end faces of the flange portion of the shaft member as a finished product. | 08-11-2011 |
| 20110214474 | METHOD OF MANUFACTURING A TUBULAR MEMBER - A method of manufacturing a tubular member having a non-constant thickness by ironing at least a portion of the tubular material. The ironing apparatus can have a punch and a die, and the die can have a convex and concave side surface opposing the punch. The method can include bending an axial end portion of the tubular material to form a bent portion. The tubular material can then axially engage the die at the bent portion, and then the punch can be moved relative to the die to iron at least a portion of the tubular material. | 09-08-2011 |
| 20110302984 | BENDING DIE, AND APPARATUS AND METHOD FOR MANUFACTURING AUTOMOTIVE SUSPENSION ARM USING THE SAME - There are provided a bending die to be used in an apparatus and method for manufacturing an automotive suspension arm to allow the manufacturing apparatus to have a simple and low-cost structure and a reduced installation area and perform automated manufacturing, and the apparatus and method for manufacturing the automotive suspension arm using the bending die. A bending die used in the apparatus for manufacturing the automotive suspension arm to bend a rod-like raw material and produce a bent material includes a lower bending die including a mounting portion for mounting thereon the rod-like raw material and an upper bending die including a pressing portion for vertically pressing the rod-like raw material mounted on the lower bending die. The mounting portion and the pressing portion include a lower die contact portion and an upper die contact portion each formed into a shape along the bent shape of the bent material to come in contact with the bent material. The lower die contact portion includes, in the middle portion thereof, a groove portion formed to have a size which allows a moving means to grip the bent material in non-contact relation with the bent material. | 12-15-2011 |
| 20120131981 | Cold Forged Stub End - Apparatus for forming and shaping a stub end fitting and methods for forming the stub end fitting, are provided. The apparatus can include application of a multi-part die including first and second die parts which both together contain a preformed stub end fitting having an annular shaped flange, and a third die part (“push bullet”) used to land upon an end of a tubular member opposite the flange of the stub end fitting in order to cause portions of the stub end fitting to extrude into a cavity between the first and second die portions not already filled by the stub end fitting during initial containment. The resulting stub end fitting has enhanced material and operational properties. Additional material can be added to the outer diameter portion of the stub end fitting between the tubular main body and the flange to build or enhance an existing annular fillet to further enhance the material and operational properties of the stub end fitting. | 05-31-2012 |
| 20120255339 | METHOD OF MAKING A FORGED SICKLE GUARD - The invention is a process of making a forged sickle guard for use in mowing and cutting machines. The sickle guard has at least one longitudinally extending guard finger wherein the guard finger has a lower body portion and a separate upper body portion. Each body portion is separately processed through forging dies followed by a punch and trimming operation. The entire ledger surface of the lower body portion is then subjected to a coining operation experiencing a sufficiently high stress to induce plastic flow of the ledger surface material thereby creating a sharp cutting edge along the entire periphery thereof. Subsequent heat treat and welding steps unite the lower and upper body portions into a unitary sickle guard without utilizing any machining operations. | 10-11-2012 |
| 20130125605 | METHOD OF MANUFACTURING DOOR FRAME FOR WIND TOWER - Disclosed herein is a method of manufacturing a door frame for a wind tower. The method includes a first step of forging a circular planar substance, thereby forming a through hole in a central portion of the substance, a second step of heating the substance that was processed in the first step, a third step of ring-rolling the heated substance around the through hole in an annular shape such that a circumstance of a center hole of the substance is equal to a length of a center line of the door frame, a fourth step of upset-forging the annular substance so that opposite sides of the substance are pressed to form linear sections, and a fifth step of fine-finishing the substance that was processed by the fourth step, thus completing the door frame. | 05-23-2013 |
| 20130291615 | MANUFACTURING APPARATUS OF STIFFENER FOR CENTER-PILLAR - Disclosed herein is a manufacturing apparatus of a center pillar stiffener having a closed section, including: a fixing shape plate; a concave cavity formed on a bottom surface of the fixing shape plate on which a blank is seated; a movable shape plate configured to slide on the fixing shape plate; a convex shaped core formed on the movable shape plate and configured to press and bend the blank toward the cavity; a mandrel inserted into the cavity to fix the bent blank; and a plurality of shape plates configured to slide over the blank and bend both ends of the blank protruding from the fixing shape plate to form a closed section. | 11-07-2013 |
| 20130319068 | STAMPING APPARATUS AND METHOD OF USE - A stamping apparatus includes a lower die defining a cavity, with a land portion surrounding the cavity. A movable upper die includes a drawing punch that corresponds to the cavity. A binder movable towards the land portion of the lower die engages an edge portion of the blank, wherein the land portion of the lower die and the movable binder each include a plurality of beads that crimp the edge portion of the blank when the movable binder engages the edge portion of the blank. The plurality of beads are oriented orthogonal to a terminal edge of the edge portion. By orienting the plurality of beads in this manner, the crimped edge portion of the blank is allowed to move inboard towards the cavity when the blank is engaged by the drawing punch before being constrained by a throat portion defined by the binder and the lower die. | 12-05-2013 |
| 20140096584 | FORGED SIDEWAYS EXTRUSION - A method and apparatus for forming metal parts in a progressive forming machine wherein one of the opposed tools on a ram and die breast is spring biased to operatively close the tools before the ram reaches front dead center thereby allowing material of the blank to extrude sideways through an aperture formed by both of the opposed tools in the final forward movement of the ram. | 04-10-2014 |
| 20140157855 | TOOLING FOR HEADED PILOT POINTED BOLTS - Tooling for making pointed headed bolts of a given diameter in numerous lengths with roll thread ready threaded to the head and partially threaded shanks in a four forming station forming machine, the tools being configured to work on wire stock as received at the first station of a diameter larger than or substantially the same as the roll diameter and not greater than the nominal diameter of the bolt, including at least two sequential head forming tools for mounting on the slide, an extrusion pointing tool for mounting on the die breast, a roll diameter extrusion tool for mounting on the die breast and a head support tool mountable in a station on the slide at multiple axial positions corresponding to standard lengths of the bolts being made, the head support tool being arranged to work at either the extrusion pointing station or the roll diameter extrusion station. | 06-12-2014 |
| 20150101388 | METHOD OF MANUFACTURING CLOSED-STRUCTURE PART AND APPARATUS FOR THE SAME - A method manufactures a closed-structure part by forming a flat plate-shaped workpiece into a closed structure including a bottom portion curved along a longitudinal direction. The method includes a first forming step of forming a plurality of first out-of-plane deformed portions and a bent portion, the first out-of-plane deformed portions being formed in a region of the workpiece corresponding to the bottom portion and arranged along the longitudinal direction, each of the out-of-plane deformed portions having a recessed shape or a protruding shape; and a second forming step of squashing the first out-of-plane deformed portions between a pad and a punch such that the region of the workpiece corresponding to the bottom portion is curved and bending bent portions by pressing the punch into a space between dies while the region of the workpiece corresponding to the bottom portion is clamped between the pad and the punch. | 04-16-2015 |
| 20150114070 | METHOD AND APPARATUS THAT FORMS A CLOSED CROSS-SECTIONAL STRUCTURE - A workpiece is formed into a curved shape that has curvatures in the longitudinal and width directions required for a final closed cross-sectional shape. The formed workpiece is bent in a direction that left and right side wall portions approach each other by clamping the bottom portions between a punch and pad in a plate-thickness direction. A pair of flange portions are butted against each other while the formed bottom portions of the workpiece are placed on a pad; and a die cavity having the same shape as the final closed cross-sectional shape is defined between a support surface of the pad supporting the bottom portion and pressing surfaces of a pair of pressure cams pressing the left and right side wall portions. Then, the pair of flange portions are depressed toward the cavity using depressing portions of a second punch disposed above the pair of flange portions. | 04-30-2015 |
| 20150352627 | COLD FORMED PRODUCT AND METHOD FOR MAKING - Described is a method of making a cold formed product. The method includes the steps of forming a rod in diameter of annealed steel. At least a portion of the rod is positioned in a cavity and end portion of the rod is impacted to form a bulge in the rod in the cavity. The bulge is cold formed with a die to form an opening through the rod at the bulge surrounded by a upset portion. The opening and upset portion supporting a fastener positioned through the opening. | 12-10-2015 |
| 20160074929 | FORGING DEVICE AND FORGING METHOD - A forging device that shapes a raw material for forging includes an upper mold and a lower mold that compress a raw material, an upper punch provided to be pierceable through a first hole part formed in the upper mold, a lower punch provided to be pierceable through a second hole part formed in the lower mold, and a drive control part that performs control of driving the upper and lower molds and control of driving the upper punch and/or the lower punch. In accordance with a decreased amount of a thickness of a raw material portion compressed by the upper punch and the lower punch, the drive control part performs drive control to move the raw material portion compressed by the upper and lower molds to a side of the upper mold and enlarge a cylindrical part formed by causing a material to flow into a gap between the upper punch and the second hole part. | 03-17-2016 |
| 20160375477 | HAT SHAPED CROSS-SECTION COMPONENT MANUFACTURING METHOD - A method produces a press-molded article having a hat shaped cross-section with flanges at both sides, a top plate, vertical walls at both sides, and having a shape curved in the vertical direction to an inverted checkmark shape along the longitudinal direction when the molded article is viewed from a side face with the top plate section on the top side. An intermediate molded body is formed by drawing a metal stock sheet into an intermediate shape, and after preparing the outside shape of the intermediate molded body by trimming, drawing is subsequently performed to form the final shape. | 12-29-2016 |
| 20180021836 | METHOD OF MANUFACTURING TOOTH-SHAPED COMPONENT, AND TOOTH-SHAPED COMPONENT | 01-25-2018 |
