Class 72/354.6 - One tool telescoping into closed die

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein at least one of the deforming instrumentalities
No. of patents: 35
Last issue date: 03/20/2012

Number	Title	Issue Date
8136380	Spline member manufacturing apparatus and manufacturing method A spline member manufacturing apparatus includes a shaving punch, a shaving die, a spline punch, and a stripper. The stripper supports a first surface of a base plate portion and an outer circumferential surface of a boss portion. The shaving punch is advanced relat...	03/20/2012
8087279	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 remo...	01/03/2012
7389668	Metal molding method and machine, and metal molded body The present invention provides a metal molding method, a metal molding machine and a metal molded body, wherein using a mold in which a molding space having a predetermined shape and a metal body lead-in space which is communicated with the molding space are formed,...	06/24/2008
7377042	Method of cold-forming near net shape metal roller blanks for anti-friction bearings A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. T...	05/27/2008
7273026	Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i...	09/25/2007
7219524	Method for manufacturing high-pressure piping part and structure thereof A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow for...	05/22/2007
7197908	Method of manufacturing a member having toothed portion A method of manufacturing a member having a toothed portion, comprises a first step of cutting a work piece into predetermined dimensions and then deburring the same, and a second step, in succession with the first step, of pressing an axially end face of a portion ...	04/03/2007
7194882	Cold forging apparatus and method for forming complex articles A cold forging apparatus for forming complex shapes at a single station includes a plurality of multiple function punch assemblies disposed on intersecting axes. Each of the multiple function punch assemblies includes an inner or a center punch and an outer or ring-...	03/27/2007
7172483	Method of making metallic shell for spark plug, method of making spark plug having metallic shell and spark plug produced by the same A method of making a metallic shell for a spark plug. The metallic shell includes a multi-stepped through hole, an intermediate tubular portion, a tip end side tubular portion and a base end side tubular portion. The through hole includes a large diameter hole secti...	02/06/2007
7143624	Forging apparatus and conveyor for forming complex articles A cold forging apparatus for forming complex shapes at a single station includes a first multiple function punch assembly having an inner and outer punch. A third punch or a second multiple function punch assembly is provided in a confronting relationship with the f...	12/05/2006
7055359	Method for forging/molding a coarse blank of an oil cylinder A method for forging/molding a coarse blank of an oil cylinder, including steps of: placing burn-in softened aluminum material into a preheated mold; using a first punch head to first forge the aluminum material in the mold cavity from outer side of the molding hole...	06/06/2006
7047787	Method of forming spline and keyway for sheet metal rotating member with boss part An annular excess portion is disposed, a spline forming male mold is passed through a boss of a sheet metal-made rotary member in which a root portion of the boss and a peripheral portion are previously displaced, and the boss is set to a stationary mold with being ...	05/23/2006
7036349	Scallop output shaft tools A die for forming a work-piece having a complex geometry includes a die insert having an interior surface that defines a first portion of the complex geometry and a retainer ring that selectively engages the die insert. The retainer ring includes a circumferential i...	05/02/2006
7013696	Method of making a flanged tubular metallic part A method of making a flanged tubular metallic part by cold forging is provided. The method comprises a step of forming an axial depression in a blank and a flange forming step of making the depression axially deeper while causing a metal of the blank to flow radiall...	03/21/2006
6427326	Method of manufacturing connecting rod A connecting rod is formed by cold forging in a single pressing cycle at a good accuracy without separately preparing a large-end cap, to thereby reduce the manufacturing cost. A double-action type of forging apparatus is made up of an upper die, a lower ...	08/06/2002
6324883	Method and tool for formation of an enlarged end portion of a bar A method and apparatus for the formation of an enlarged end portion of a bar (48) by upset forging. Before upsetting, the bar end portion (46) is heated to a forging temperature and passed through a passage (40) of a form part (2,4) and into a cavity (44)...	12/04/2001
6058591	Clutch drum and method of manufacture A clutch drum is formed from a single piece of material. The clutch drum includes an inner surface having a plurality of spline portions interspersed with inner wall spaces. Each spline portion includes at least one slot to form at least one snap ring gro...	05/09/2000
6032508	Apparatus and method for near net warm forging of complex parts from axi-symmetrical workpieces A female die and a punch for forming relatively complex parts from axi-symmetrical workpieces, and the method of using the female die and punch to form the parts from the workpieces are disclosed. The female die and punch are used in a forging apparatus t...	03/07/2000
6006564	Application of dry lubricant to forming dies and forging dies that operate with high force The present invention applies dry lubricant to appropriate components of a forming die of a stamping press to minimize frictional force against such components during operation of the forming die or to appropriate components of a forging die of a forging ...	12/28/1999
5970610	Structure of a contact point of a terminal piece and production method therefor According to a production method for a structure of a contact point of a terminal piece, it is possible to heighten the durability of the terminal piece by thickening the contact point without raising material cost and processing costs. Materials for a co...	10/26/1999
5931042	Method of forming a key portion of a sheet metal member having a cylindrical portion The present invention relates to a method of forming a key portion on a sheet metal member, the key portion being useful in coupling of a shaft to a member such as a pulley used in an automobile. According to the method of the invention, an inner metal pa...	08/03/1999
5758536	Device and method for cold forging double cylindrical pulley Method for forming a double cylindrical pulley, in which a work piece placed in a die is pressed by a punch to cause the work piece to make a plastic deformation, for forming an inner ring and an outer ring of the pulley to have the same hardnesses and le...	06/02/1998
5749257	Rivet in a converted can end, method of manufacture, and tooling An easy open can end having an improved rivet structure integrally formed thereon for the attachment of a pull tab, a method of further forming a can end to incorporate the improved rivet, and tooling for accomplishing the method. The further formation of...	05/12/1998
5606887	Apparatus and method for cold forming an L-shaped lead alloy battery terminal A method and apparatus to cold form an L-shaped lead battery terminal. The apparatus includes a forming station for cold forming an L-shaped lead battery terminal having a tower offset from the head. The forming station includes a split die for forming a ...	03/04/1997
5575172	Device for producing hollow bodies according to an internal high pressure metal forming process A device for producing a hollow body according to an internal high pressure metal forming process has a tool which is divided along a mold joint into a stationary tool part and a liftable tool part. The tool has an impression for receiving a tube-shaped b...	11/19/1996
5546647	Method of making an ejector tube for molds A method of making the ejector tubes which serve to guide the ejectors used in molds, for example those used in injection molding comprises a series of operating stages performed on a tube which is the starting point. The first stage is the cutting of a l...	08/20/1996
5524464	Workpiece-bore processing apparatus and method A plurality of processing balls with different outer diameters are prepared at a slidable or rotatable upper stage. One ball, selected from the plurality of prepared balls in correspondence with the inner diameter of a bore of a workpiece, is inserted thr...	06/11/1996
5493888	Precision forming apparatus, method and article Precision forming apparatus is disclosed. The apparatus comprises a die with a cavity which conforms with the shape of a portion of a part to be formed, a punch with a cavity which conforms with the shape of another portion of the part to be formed, and m...	02/27/1996
5492001	Method and apparatus for working burred portion of workpiece The periphery of a workpiece which has already been subjected to burring is at least partially punched by a periphery punch and a periphery die. The burred portion is then further pressed by the periphery punch and a die surface including an annular porti...	02/20/1996
5297414	Method for necking containers A method of die-necking the open end of a can body to form a reduced diameter neck having a smooth profile comprising first forming a reduced diameter control neck at the open end of the sidewall of the can body, and then totally reforming the control nec...	03/29/1994
5125256	Method of manufacturing outside ring An outside ring manufacturing method comprises a first step of blanking out from a metal sheet a blank with a circular body portion and tongue portions which protrude at several places from the outer peripheral edge of this body portion, a second step of ...	06/30/1992
5018379	Apparatus and method for crimping end of can body There is disclosed a method for crimping an open end of a can body. A male die is inserted into the can body through the open end in such a manner as to be coaxial therewith. Then, the female die is caused to fit on the opening end, and the female die is ...	05/28/1991
4803880	Hollow article forging process A process for forging hollow elongated articles from superalloys and titanium alloys. The process employs preconditioned material which has low strength and high ductility. The process is performed in a forging press and has an initial step which converts...	02/14/1989
4299112	Method and device for producing synchronizer ring A planar blank material to be press-formed is confined in a space formed by punch means having peripheral flange part provided with gear teeth corresponding to those of the hollow product, a mandrel provided slidably in the central hole of said punch mean...	11/10/1981
3942353	High energy rate counterblow forming machine A high energy rate counterblow forming machine having opposing independently movable coaxial rams movable within pressure chambers containing a compressible working fluid for impelling the rams toward one another at high velocity from retracted cocked pos...	03/09/1976

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Class 72/354.6 - One tool telescoping into closed die