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7421874 |
Main cylinder or press cylinder of an extrusion/tube extrusion press
A press cylinder for an extrusion press having a cylinder beam has a cylinder housing fixed on the beam and a piston shiftable along an axis in opposite forward and rearward directions in the...
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7412864 |
Method of forming trailer receiver
The present invention relates to an improved method of forming a trailer receiver for use in connection with a trailer hitch assembly for towing trailers, campers, boats and the like. The invention...
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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...
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7296452 |
Metallic wire for grip rings, producing method and apparatus thereof, producing method and apparatus of grip rings for tube connector with use of metallic wire and grip rings for tube connector
Disclosed are metallic wire with high surface quality and low-cost suitable for use as material for grip rings and a producing method and apparatus thereof. Metallic wire 34 deformed in a coil...
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7225658 |
Method for manufacture of a metal shell, and a cup designed to serve as a blank
The invention relates to manufacture of a cup ( 1 ) that is designed to serve as a blank in the production of a metal shell ( 2 ) by providing a body ( 3 ) of a bar material, placing the body ( 3 )...
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7134308 |
Extrusion press tool for producing a cylindrical body consisting of a plastic mass
The invention relates to an extruder tool for producing a cylindrical body which consists of plastic mass and has at least one recess extending in the interior thereof. The extruder tool comprises...
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7093474 |
Extrusion die for manufacturing tube with small hollow portions, mandrel used for said extrusion die, and multi-hollowed tube manu-factured by using said extrusion die
An extrusion die for manufacturing a tube with a plurality of small hollow portions arranged in a width direction of the tube, includes a female die for defining an outer periphery of the tube and...
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7069760 |
Device and method for manufacturing a curved metal tube or rod
The purpose of the present invention is to propose a new way of manufacturing curved metal tubes or rods with arbitrary sections and eliminating the conventional bending defects such as thinning...
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6865919 |
Method and apparatus for producing a refined grain structure
The apparatus for operating on a workpiece includes a die defining first and second apertures and an interior therebetween. The first aperture and the interior of the die are structured to receive...
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6841235 |
Metallic nanowire and method of making the same
A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and...
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6681610 |
Process for extruding tube having different sections and die for tube extrusion molding
The present invention relates to an easy and cost effective process for extruding a tube having different intermediate sections in its longitudinal direction, and a die for forming a tube through...
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6581431 |
Eccentric pipe sections
An extrusion tool for an extrusion press for manufacturing seamless, eccentric pipe sections—in particular pipe sections with circular outer and inner contours—from extrusion blocks, in...
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6508001 |
Method and apparatus for forming a wire
A solid wire of precious metal, such as gold, is drawn through a die which has a groove forming element disposed in a drawing channel located between the inlet and outlet of the die. The hollow...
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6470726 |
Method for manufacturing an extruded article changing in cross-section and an apparatus for extruding said extruded article
An extruded article which has at least one hollow portion and changes in cross-section along a direction of an extrusion axis is manufactured by the method. The method includes the step of...
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6412324 |
Apparatus and method for forming a double ended upset pipe
Apparatus for and method of extruding a metal pipe having a substantially uniform inner diameter. The forward and rearward end sections of the pipe are thicker than the middle section of the pipe....
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6248277 |
Continuous extrusion process and device for rods made of a plastic raw material and provided with a spiral inner channel
Method and apparatus for the continuous extrusion of rods of plastic raw material. The rods contain at least one inner channel which is at least in part spiral-shaped. The raw material may be a...
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6116074 |
Extrusion arrangement and process for manufacturing hollow-profile workpieces made of metal
An extrusion arrangement is disclosed for manufacturing hollow-profile workpieces made of metal, including an extrusion die which is guided in an extrusion chamber and compresses material situated...
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6101858 |
Forming method for forked artistic aluminum or copper alloy pipes
A method for forming artistic forked pipes made of aluminum or copper alloy, including the steps of selecting of extruded material, milling for making an extruded pipe, enlarging the bore of a main...
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6047586 |
Method for manufacturing a metal tube with at least one optical fiber therein
A method is proposed for producing a metal tube (1) with one or several optical fibers (2) extending therethrough. Metal (10) applied to the surface of a frictional wheel (11) is conveyed to a...
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5904939 |
Extruder for extrusion manufacturing
An apparatus for manufacturing a rod of hard metal or ceramic with at least one helical inner bore. A plasticized mass of hard metal or ceramic is simultaneously forced through a die and twisted....
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5813270 |
Continuous extrusion apparatus
A die top assembly engaging with a rotating wheel (not shown) of a continuous extrusion apparatus includes a die top (22) formed with a part cylindrical face (34) coacting with the wheel...
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5765425 |
Radial extrusion process combined with inside tune ironing
A subject of the invention is the radial extrusion process combined with inside tube ironing, which is in essence a cold extrusion process and can be reckoned among bulk metal forming processes. It...
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5730018 |
Method of forming internal spline shaft
A method of forming an internal spline shaft, comprising forming splines on an inner circumferential portion of a hollow stock by cold forging in such a way that a clearance "a" between an inner...
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5595085 |
Aluminum extruding machine
An aluminum extruding machine which includes four guide rods connected between two opposite upright blocks above the machine base, a fixed die holder, a material carrying barrel moved on the guide...
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5557962 |
Long deformed extruded metallic shape and method for manufacturing said shape
In producing a long extruded metal article of miscellaneous shapes, no post-working such as cutting is applied to the shaped long metal billet but extrusion of the metal billet and formation of...
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5464340 |
Extruder
A core body (60) is disposed in a feed passage (40) in rear of an extrusion die (5), with the passage being provided to transport an extrusile material. One or more annular passageways (63) are...
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5461898 |
Method and apparatus for extrusion of tubing sheeting and profile shapes
Method and apparatus for the extrusion of tubing, sheets and profile shapes, wherein shearing strains in the material being extruded through a die serve to orient the microstructures of the...
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5438858 |
Extrusion tool for producing a hard metal rod or a ceramic rod with twisted internal boreholes
The invention relates to a extrusion die tool for producing a hard metal or ceramic rod with at least one twisted internal bore (14). The nose (3) of the nozzle (2) has a smooth cylindrical channel...
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5337477 |
Methods and apparatus for forming tubular risers and manifolds including tubular risers
A manifold for a heat exchanger is formed by placing a blank having a siamesed pair of tubular passages supported by a first mandrel into a die cavity which receives the blank and defines at least...
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5147662 |
Twisted wire manufacturing apparatus and concentric twisted wire manufacturing machine
A twisted wire manufacturing apparatus is provided with cradle which is suspended at a pair of rotating shafts having extreme ends opposed to each other through bearings. A main body of the wire...
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5072521 |
Method of making electrical contact
An electrical contact for switches, relays, voltage regulator and the like, which comprises a clad body having a contact segment of a contact stock such as silver, palladium or alloy thereof and a...
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5061163 |
Die assembly
A die assembly for use in a continuous extrusion apparatus is made up of two cooperating members. The first member has tapered apertures therethrough disposed symmetrically about a mandrel portion....
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5003806 |
Apparatus for producing curvilinear tubes
The present invention relates to an apparatus for producing three-dimensional curvilinear tubes. The apparatus comprises (a) a tube producing die having an axi-symmetric inner surface for passing...
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4967583 |
Method of manufacturing extruded seamless hollow materials
A method of manufacturing extruded seamless hollow materials characterized in that, prior to extruding a hollow billet from container liner through extrusion dies, a process wherein a centering jig...
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4924690 |
Method and apparatus for plastically forming helical internal gears and helical gears
The present invention is to extrude helical internal gears and helical gears by pushing materials processed to any type of blank into a die unit successively by use of a punch, i.e., by passing the...
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4882924 |
Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape
A method for manufacturing a hollow tape guide for guiding magnetic recording tape. In this method, a round rod-like metal wire is sheared by shearing cutters into a blank a predetermined length,...
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4878370 |
Cold extrusion process for internal helical gear teeth
A cold extrusion process for forming internal ring gears comprising the formation of an annular ring gear blank having precise inside and outside diameters, placing the workpiece over a circular...
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4831859 |
Extrusion tool for producing a drill bit blank
An extrusion tool for making a drill bit blank provided with an internal rinsing bore extending helically in a longitudinal direction of the drill bit blank, includes a nozzle having an inner wall...
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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...
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4779440 |
Extrusion tool for producing hard-metal or ceramic drill blank
An extruded drill blank which has uniform pitch of grooves or lands on the circumference thereof and flushing bores of uniform diameter. A tool and process for producing the extruded drill blank...
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4739644 |
Process for forming internal gear profile cup-shaped member and apparatus therefor
A cup-shaped raw workpiece having a bottom panel and a cylindrically-shaped circumferential panel is positioned facing downwardly on a movable lower punch having a forming gear profile. The lower...
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4703639 |
Apparatus and process for forced lubrication piercing
Pressurized fluid, pressurized in excess of the yield strength of a billet or rod, is communicated to the exterior of a piercing punch during piercing of the billet or rod to produce tubing, the...
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4663812 |
Method of manufacture of manifolds
A method of manufacturing integrated manifolds for heat exchangers include providing hollow shape with a plurality of individual risers each having a substantially solid cross-section....
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4653305 |
Apparatus for forming metallic article by cold extrusion
A method and apparatus for cold working a metallic blank having a central hole into a substantially annular or cylindrical article such as an internally and or externally toothed gear, with the...
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4592224 |
Process and device for extruding a hollow section
A process for extruding a metal billet, in particular a light metal billet in an extrusion container, into the form of a hollow section through a shape-giving orifice in a die having a mandrel...
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4564347 |
Continuous extrusion apparatus
Apparatus for the continuous extrusion of metals in which feed is introduced into a pair of circumferential grooves in a rotating wheel to contact arcuate tooling and abutments. The feed is...
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4546634 |
Methods and apparatus for initiating tubular extrusion
Methods and apparatus for initiating extrusion of elongated hollow product, more particularly cylindrical tubular product, by increasing the space between the end of a mandrel and an opposed...
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4528832 |
Methods and apparatus for increasing the efficiency of tubing extrusion
Extrusion apparatus wherein a hollow cylindrical workpiece is advanced over the outer surface of a mandrel and through an extrusion die by motive force applied to the outer surface of the workpiece...
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4523444 |
Methods of and apparatus for controlling the gap between a mandrel and die during extrusion
Methods of and apparatus for controlling the gap between a mandrel and an extrusion die during extrusion wherein upon the actual gap between the mandrel and die during extrusion being detected as...
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4521360 |
Methods of compaction by incremental radial compression and/or low-ratio extrusion
A process of consolidating and compacting unconsolidated particulate materials such as powders with or without short fibers to a density of about one hundred percent by carrying out the process in...
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