Class / Patent application number | Description | Number of patent applications / Date published |
072256000 | With metal-deforming other than by extrusion | 16 |
20080276681 | Preparation method of laminated composite materials of different alloys - The invention relates to a new preparation technique of composites, in details, i.e. a method of producing laminated composite materials of different alloys. In the preparation method, the bi-layer or multi-layer composites are prepared by means of the equal channel angular extrusion/pressure (ECAE/ECAP). Firstly, the appropriate alloys pairs or groups are selected, and the rational arrangements are carried out after pre-treating surfaces; then, the clad process is performed by extrusion and shear deformation in ECAE die; finally, the composite material is produced after one single pass or multiple passes clad extrusion. The annealing treatment can be performed subsequently to enhance the interfacial bonding strength by diffusion after the clad extrusion, and the heat treatment parameters consist of annealing temperature and holding time, which are chosen carefully to meet the demands of the refining microstructures and good properties for both the interfaces and individual component metals. Consequently, the layer-metal composite is produced with the firmly bonding interface, good microstructures and excellent properties. In the invention, the selection and assembling manners of the materials are very free, such as composites with bi-layer or interval multi-layer manners, and the method is suitable for most of the metal materials. The invention is a new method of fabricating composites and the preparation cost is low enough to meet the demand of large-scale industrial production. | 11-13-2008 |
20090013746 | Process for Manufacturing Outer Ring Member for Constant-Velocity Joint - First shaped item with shaft part is produced by forward extrusion forming of work, and further, upset forming thereof is carried out to thereby obtain second shaped item with large-diameter part. Subsequently, backward extrusion forming of the second shaped item is carried out to thereby obtain third shaped item having not only cup part provided with ball rolling grooves but also circular diameter expansion portion provided at the mouth area of the inside wall of the cup part along the circumferential direction in such a fashion that the diameter is gradually expanded from the bottom side toward the opening side. Outer ring member for constant-velocity joint is obtained by further subjecting the third shaped item to low-temperature annealing treatment, shot blast treatment and lubricating chemical coating treatment, and thereafter to ironing forming. | 01-15-2009 |
20090019910 | MAKING AND COILING ROD AND WIRE - A method of making wire has the steps of rolling out a wire in a mill having a finishing stand from which the wire exits at a predetermined and varying travel speed V | 01-22-2009 |
20090120154 | COMPOSITE MOLD, PLASTIC WORKING DEVICE FOR WORKPIECE MATERIAL, AND PLASTIC WORKING METHOD FOR WORKPIECE MATERIAL - After a rod-like titanium material | 05-14-2009 |
20090282885 | Method of forming spring washer blind-holes into a piston for an automobile transmission - The problem to be solved by the present invention is to clear up an eccentric load onto a pin and a problem of deformation and cavity due to flowing material during extrusion when spring washer blind-holes in a piston for an automobile transmission is formed by extrusion with a pin. After an annular region along the peripheral edge portion on the back of an end plate | 11-19-2009 |
20100000282 | Windshield Wiper Arm with Hemmed Distal End - A wiper arm ( | 01-07-2010 |
20100077825 | High strain rate forming of dispersion strengthened aluminum alloys - Dispersion strengthened aluminum base alloys are shaped into metal parts by high strain rate forging compacts or extruded billets composed thereof. The number of process steps required to produce the forged part are decreased and strength and toughness of the parts are increased. The dispersion strengthened alloy may have the formula Al | 04-01-2010 |
20100077826 | METHOD FOR THE PRODUCTION OF AXIALLY SYMMETRICAL WORKPIECES WITH OR WITHOUT A TOOTHED PROFILE - The method according to the invention for producing substantially axially symmetrical workpieces by shaping a starting material uses a die and a rotatable tool, the die being provided with a bore along the central axis thereof. Here the starting material is introduced through the bore of the die and pressed in between the die and the rotating tool such that the starting material flows outward from the central axis according to the contour of the die. The workpiece is thus produced in a single operation. Depending on the requirements for the dimensional accuracy and surface quality, mechanical finishing or calibrations are possible. Due to the material flow in the die and the rotation of the tool, shaping forces which are only small in comparison to conventional methods occur here, and so the requirements made of the tools, and so the expense, are reduced. Since the shaping takes place without cutting, the resulting fibre flow of the finished workpiece is also advantageous and provides the workpiece with better mechanical properties. | 04-01-2010 |
20100236313 | STAMPING-EXTRUSION PROCESS AND DEVICE - The subject of the invention is a device and a process for producing single-piece parts, including a bulk section and an elongated section, the device includes a die, formed from at least two half-shells, provided with an orifice for introducing material and bearing as a hollow the shape of the bulk section of the part, at least one of the two half-shells includes an extrusion orifice for producing the elongated section of the part. The process includes a step of pushing a slug of material into a die, provided with an inlet orifice and bearing as a hollow, the shape of the bulk section of the part, and a step of extruding a fraction of the slug to produce the elongated section of the part through an extrusion orifice of the die so as to form a blank of the part via a stamping-extrusion operation. | 09-23-2010 |
20100257911 | FLEXIBLE ROD MANUFACTURING APPARATUS AND METHOD FOR A SPINAL FIXATION AND THE FLEXIBLE ROD MANUFACTURED THROUGH THE SAME - The present invention relates to a rod capable of securely connecting pedicle screws in a pedicle screw system for correcting a damaged or transformed spine and a method and an apparatus for fabricating the same and, more particularly, to a flexible pedicle rod with superelasticity in order to provide a flexibility to a fixation between spine segments and a method and an apparatus capable of fabrication the same in mass production. The apparatus according to the present invention comprises a body; an X- and Y-axis moving element mounted on a top surface of the body, the X- and Y-axis moving element simultaneously moving in X-axis and Y-axis directions to wind a material at an angle of 90 degrees; a magazine mounted on the X- and Y-axis moving element to load a material; a material withdrawing element for withdrawing materials one by one from the magazine; and a material molding element mounted on the X- and Y-axis moving element, the material molding element gripping both ends of the material withdrawn from the material withdrawing element and rotating to mold a portion of the material in a spring shape. | 10-14-2010 |
20100300171 | Height positioning mechanism for roll stand assembly on an apparatus for continuously forming an extruded sheet product - An apparatus for continuously forming an extruded sheet product having an extruder assembly with a sheet die for delivering flowable material. A roll stand assembly has a main frame with first and second rolls. A vertical height positioning mechanism is operated to vary the relationship between the sheet die and nip location between rolls and has first and second lift components that cooperate with the main frame at first and second laterally spaced locations. The first and second lift components are each movable in first and second opposite paths to selectively elevate and lower the nip location relative to the sheet die. The vertical height positioning mechanism further has an actuating system to selectively and simultaneously cause the first and second lift components to move. | 12-02-2010 |
20110030439 | METHOD FOR PRODUCING A SUPPORT STRUCTURE, PREFERABLY A SUPPORT STRUCTURE FOR A VEHICLE SEAT - A method is provided for producing a support structure, preferably a support structure for a vehicle seat having at least one seat shell for the seat part and/or the backrest of the vehicle seat, having the following method steps of producing a metal semi-finished product and reshaping it into an essentially flat plate, detaching a plate part from the plate, and deforming the plate part, the production of the metal semi-finished product being performed by extrusion. The semi-finished product may be already formed into a flat plate by the extrusion or the extrusion is performed with production of a curved plate, which is subsequently reshaped into a flat plate. | 02-10-2011 |
20110185783 | METHOD AND DEVICE FOR THE NON-CUTTING PRODUCTION OF AN OUTSIDE THREAD ON HOLLOW METAL WORK PIECES - A method for the non-cutting production of an outer thread on hollow metal work pieces for use as hollow screws, hollow shafts, threaded sleeves or fittings as stable connecting or fastening elements. The method is particularly suited for thin-walled work pieces and a device is provided for carrying out the method. Within a multistage press formed with a displaceable carriage and a stationary work piece carrier unit, a wire or hollow tube section forming the base material is reshaped in one or more reshaping stages I to V into a finished hollow blank. In the multistage press, the pre-fabricated hollow blank is inserted in a further stage VI into a multipart split tool with a cavity having an inside wall that is provided with a negative of the thread to be formed. In the closed state of the split tool, at least one mandrel is inserted into the central opening of the blank and the blank is widened, wherein the contours of the threaded profile is filled by a radial material flow and subsequently the finished work piece is removed. | 08-04-2011 |
20120234067 | BALL PLUNGER FOR USE IN A HYDRAULIC LASH ADJUSTER AND METHOD OF MAKING SAME - A method of cold-forming a ball plunger blank includes providing a slug having first and second ends and backward extruding the slug at its first end to form a cavity that is defined by a wall. The method further includes forming a generally ball-shaped outer surface at the second end of the slug to final dimensions. The method also includes upsetting at least a portion of the wall to form a shoulder that at least partially closes the cavity and defines a ball seat surface to final dimensions. | 09-20-2012 |
20140352385 | APPARATUS FOR PRODUCING A HOLLOW POPPET VALVE - A method of producing a hollow valve comprises the step for forming material having a blind hole along its axis, the step for extruding the material in a shaping hole in a die downward and the step for lowering a lower part of a pin to an upper part of a smaller-diameter portion of the shaping hole to allow the material to plastically flow downward through a gap between the lower part of a pin and the smaller-diameter portion of the shaping hole thereby molding a primary intermediate of the hollow valve having a stem and a head at the upper end of the stem through which a hole is formed. | 12-04-2014 |
20160059289 | METHOD AND SYSTEM FOR PRODUCING SHEETS FROM STRAND-SHAPED PROFILES - A method for producing metal sheets from strand-shaped profiles having a low thickness made of magnesium or magnesium alloys, wherein an open or a closed extruded profile is produced in a preceding method step, wherein the extruded profile exiting the extrusion die of an extrusion press is shaped to form a planar metal sheet by the contactless action of electromagnetic forces. | 03-03-2016 |