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7562609 |
Method of forming through-hole and through-hole forming machine
The method of forming a through-hole is capable of preventing formation of burrs, improving machining efficiency and reducing machining cost. The method of forming a through-hole in a circular wall...
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7533793 |
Solder preforms for use in electronic assembly
A solder preform for use to attach an electronic component to a substrate. The preform is for placement by a pick-and-place machine using a vacuum nozzle which picks the preform from a preform...
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7308814 |
Method for perforating a sheet
A method for perforating a sheet ( 1 ) with the aid of a stamp ( 3 ) and a matrix ( 2 ) is described, the sheet ( 1 ) being elongated before the hole punching in accordance with the setpoint...
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7188506 |
Apparatus and method utilizing an automated machine tool system and mandrel for cold working of holes in metal components
A system for automatically cold working holes in metal components is disclosed. An automated mandrel moves in relation to a workpiece in order to perform cold expansion of holes in the workpiece....
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7163763 |
Cold formed battery terminal
A method and apparatus for cold forming a battery terminal having a base and an insert. The insert includes a first portion encapsulated within the base and a second portion that extends beyond a...
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7076986 |
Process for forming a linking element for a push belt for a continuously variable transmission
In a process for forming a linking element for a push belt for a continuously variable transmission, material is displaced from a central portion of the linking element during a blanking process,...
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6742373 |
Method for manufacturing a V-block of a metal belt type continuously variable transmission
A method for manufacturing a V-block of a metal belt type continuously variable transmission is provided. The V-block is formed by punching a V-block press material with a main punch and a counter...
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6729172 |
Methods and apparatus for manufacturing press formed articles
Methods for manufacturing a press formed article ( 22 ) may include half die cutting a substantially flat material ( 1, 10 ) by press forming, thereby forming a first processed material ( 10′ )...
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6718811 |
Process for producing a guide tube of a nuclear reactor fuel assembly, mandrel for forming the guide tube, and the guide tube obtained
A tubular blank ( 22 ) is rolled on a mandrel ( 14 ) in a pilgrim rolling mill. In a first rolling stage, a first part of the blank ( 22 ) is rolled on a first part ( 18,19 ) of the mandrel ( 14 ),...
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6427512 |
Method of and apparatus for blanking elements of belt for continuously variable transmission
A metal sheet having a pair of thin portions on respective marginal edges thereof which are joined to a remaining portion of the metal sheet via respective corners is centered by positioning the...
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6401510 |
Method for stamping a part from a multi-layered strip
A method of stamping a part from an elongated strip of multi-layered material. The multi-layered material includes a viscoelastic intermediate layer, and upper and lower layers that are relatively...
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6381822 |
Method and apparatus for manufacturing friction plate
The present invention provides a method for manufacturing a plurality of friction plates obtained by adhering friction members to substantially annular core plates, comprising the steps of...
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6378350 |
Seat belt anchorage plate for seat belt device and method for manufacturing the same
A seat belt anchorage plate for a seat belt device formed with a plate shaped member (base) 2 is provided with a slot 6 into which a belt (waist belt) 13 is inserted and which has long edge...
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6311535 |
High voltage bushing embossing punch tool and method
The present invention provides a method and system that creates a hole with an embossed base in a planar sheet. The system comprises an embossing punch that forms a raised area in the planar sheet,...
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6289709 |
Gutter outlet punch
A gutter outlet punch for punching an outlet in a rain gutter. The gutter outlet punch has a female die and a male cutting die mating with the female die with the rain gutter positioned...
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6182360 |
Method of producing and stacking components
A method of producing and stacking components from individual layers which are punched, cut or the like out of a hardened material strip. According to the method, layers are removed from a hardened...
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6134767 |
Method for embedding connection elements in a wall
The invention relates to a method and a device for embedding connection elements in a wall. The connection elements (14, 34, 50) exhibit in each case a punch-like section. The punch-like section...
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6101859 |
Die assembly for forming a pattern on a metal plate
A one-piece metal plate has an open mesh-like pattern, a plurality of identical rectangular perforations arranged at regular intervals in parallel rows, a plurality of identical rectangular...
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6082165 |
Collar hole die
A collar hole die for forming a hole in brass headers used in radiators with a collar around the periphery of the hole. The collar hole die includes a body with top and bottom faces, and an outer...
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6065321 |
Outlet for connecting spray nozzles and drop tubes to an irrigation pipe
An outlet for connecting spray nozzles, drop tubes or the like to an irrigation pipe comprising a generally cylindrical-shaped member having an inner end, an outer end, an annular shoulder...
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6018976 |
Process for tightly closing a bore in a work piece made of ductile material
The process is characterized by means of successively executed displacements of material of a work piece into the inner bore diameter at different points of the mouth of a bore. The displacement of...
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5979277 |
Method and apparatus for punching a thin metal tape to provide a lead frame for a semiconductor device
A stripper holder for holding a stripper plate conforms with the deformation of a die plate. A pressing force applied to the stripper plate and is greater than an elastic limit of a metal tape to...
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5829299 |
Method and apparatus for making nipple holes in a double-walled hollow wheel rim of a spoke wheel
The invention relates to a method of making nipple holes or similar holes in a double-walled wheel rim having an inner wall positioned radially inward and outside of that an outer wall. The holes...
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5816093 |
Method and tool for forming a tapered hole in a cylindrical work by punching extruding
This invention provides a forming method capable of forming tapered through holes at once with a single pressing operation. A hole is formed in a work with a piercing punch 1 mounted on a press by...
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5755133 |
Mold for fabricating a screw washer and a screw washer
An improved screw washer, and an improved mold for fabricating the improved screw washer. Using a selected metal plate having a thickness thinner than a nominal height demanded for a nut, the...
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5722139 |
Installation apparatus for attaching a fastener to a panel
An improved installation apparatus and method of attaching a female fastener element, such as a self-riveting nut fastener, to a metal panel, wherein a small hole is first formed in the panel and...
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5502994 |
Method for producing a metal tip
A cold forging apparatus for producing a metal tip for use, for example, in an electrode of a spark plug includes an intermediate die for receiving a metal blank, an upper die having a punch for...
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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...
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5390523 |
Coupling for shoulder ended pipes
A method of producing a coupling for pipes includes the steps of subjecting a predetermined length of desired cross-sectional profiled material to a bending process in a mould having a...
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5381681 |
Machine with an adjusting device located in a movable machine part
A machine and method for adjustment of the tooling of a forming machine while continuously operating such machine. The adjusting device being located in a movable or stationary machine part, such...
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5349840 |
Method of making a high torque battery terminal
A battery terminal with high torque resistance utilizing three sided frusto-conical recesses and mating protrusions extending from the battery terminal and method of making the terminal by a cold...
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5287713 |
Method and apparatus for ironing and trimming cylindrical portion of workpiece, using stepped punch and die having tapered die hole
System for ironing a cylindrical portion of a workpiece, and trimming one axial end of the cylindrical portion remote from a radial bottom portion. The system uses a stepped punch having a...
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5259819 |
Method of manufacturing a washer
A method of manufacturing a washer includes the steps of: (a) feeding a metal wire into a die having a bearing face and a through hole which opens to the bearing face so as to permit the metal wire...
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5140881 |
Apparatus for manufacturing a cylinder with a connected sleeve
A cylinder with a connected sleeve for supply and displacement of fluid through connection to an external piping, as well as an apparatus for and a method of manufacturing same are disclosed. An...
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5067339 |
Cutting and forming tool for complicated flat structures
A tool comprises a lower part (2) and an upper part (1). The upper part (1) of the tool can slide on guides (3) and has a force plug (7) and a blanking punch (4). A die-plate (5) arranged on the...
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5009095 |
Method for forming a collared hole in sheet material
A progressive die for producing collared holes in a sheet. The die includes a first station having a pattern of three punches producing three spaced apart holes in the sheet. A main punch at the...
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5007275 |
Progressive die for drawless fin
A progressive die for producing collared holes in a sheet. The die includes a first station having a pattern of three punches producing three spaced apart holes in the sheet. A main punch at the...
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5005281 |
Method of making rotor and stator pole assemblies by stamping magnetic plate
Complementary laminations for a stator pole assembly and a cooperating rotor pole assembly of an electric motor or generator are produced simultaneously from a plate of magnetic material. The plate...
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4956989 |
Method of forming a collar for heating exchanger fin and die for use therein
A method of forming a collar-shaped protrusion on thin plate material by relatively bringing a forming punch having the outer diameter varying stepwise into the forming hole of a forming die and...
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4897909 |
Method for wheel manufacture by punch forming
Method for punch forming center pilot opening or other wheel mounting surfaces in a pierceable metal performed wheel disc blank mounted internally of the wheel rim. A combination pierce and shave...
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4809429 |
Apparatus for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations
A method and apparatus for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations. The improvement to the laminated assembly is...
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4798075 |
Method and apparatus for making a bowed external spring retaining ring of the E-shaped type
A bowed external spring retaining ring of the E-shaped type includes flats at the leading and trailing ends of the ring. The flats from leading and trailing edges of the ring which are rounded on a...
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4736611 |
Apparatus for wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and wheel assembly
A method and apparatus for forming bolt and center-pilot mounting openings in vehicle wheels, particularly styled-disc vehicle wheels. A preformed rim and disc assembly is engaged and fixtured...
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4728842 |
Laminated assembly for a dynamoelectric machine and method for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations
A method and apparatus for manufacturing laminated assemblies having ridges formed on projections which interlock with recesses of adjacent laminations. The improvement to the laminated assembly is...
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4711115 |
Method for forming memory discs by forging
A flat, smooth material, e.g., metal sheet, suitable for use as a disc substrate for applying a recording media thereto for data storage devices, and a method of making same, are disclosed. The...
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4621512 |
Mechanism for and method of shifting cam mechanisms in a press for pressing workpieces with depressed portions
Mechanism for and method of shifting cam mechanisms in a press for pressing workpieces with depressed portions comprise a combination of a first single cam mechanism for retracting a die by a...
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4590780 |
Process and apparatus for producing at least two forgings on a hot-forming press
Starting from a pre-heated bar, there is sheared-off first a portion (41) which, in a first forming stage of the machine, is formed into a tier shaped pressed article. In the second forming stage,...
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4517819 |
Method and apparatus for forging sprocket segments
The invention discloses a process of forging a sprocket segment for a track-type vehicle undercarriage. The forging process produces sprocket segments that conform to very restrictive tolerances...
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4489584 |
Single stroke, draw and trim die assembly
A die assembly (2) which operates in a single stroke, both to draw and to trim a deformable sheet material such as sheet metal including relatively reciprocal upper and lower die sections (10,14)...
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4485661 |
Deep-drawing end edge-trimming die
A deep-drawing and edge-trimming tool assembly for the shaping of workpieces with an upstanding peripheral edge flange and the subsequent trimming of the outer edge of the edge flange, the assembly...
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