US3765216A - Extrusion - Google Patents

Extrusion Download PDF

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Publication number
US3765216A
US3765216A US00228673A US3765216DA US3765216A US 3765216 A US3765216 A US 3765216A US 00228673 A US00228673 A US 00228673A US 3765216D A US3765216D A US 3765216DA US 3765216 A US3765216 A US 3765216A
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United States
Prior art keywords
passageway
groove
face
abutment
abutment member
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Expired - Lifetime
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US00228673A
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English (en)
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D Green
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UK Atomic Energy Authority
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UK Atomic Energy Authority
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/005—Continuous extrusion starting from solid state material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding

Definitions

  • ABSTRACT A metal extrusion process in which the force for extrusion of the metal through a die is derived, at least in part, by maintaining frictional engagement of the metal with passageway defining surfaces of a member which is moved towards the die such that frictional drag of the passageway defining surfaces urges the metal through the die.
  • Apparatus for performing the method is disclosed, including having the capability of continuous feed.
  • a workpiece In extrusion a workpiece is subjected to pressure in a container so that the workpiece is extruded from the container through an orifice defining the product cross section. Pressure may be applied on the workpiece mechanically, as in conventional extrusion by a ram acting on the workpiece in a container. Alternatively, as in hydrostatic extrusion, liquid may be pressurised about the workpiece in the container to effect extrusion of the workpiece.
  • the present invention provides a metal extrusion process in which the force for extrusion of the metal through a die means is derived, at least in part, by maintaining frictional engagement of the metal with passageway defining surfaces of a member which is moved towards the die means such that frictional drag of the passageway defining surfaces urges the metal through'said die means.
  • the frictional engagement may be maintained by holding against the metal a member which is held stationary relative to the die means and which has a lesser metal engaging area than the moving member, such that frictional drag of the passageway defining surfaces of the movingmember with the metal predominates for urging the metal through the die means.
  • the metal which is fed to the passageway defining surfaces may be solid bar or rod, or may be in powder form.
  • the size of workpiece which can be accomodated in the extrusion container governs the length of extruded product which can be formed in a single operation.
  • the workpiece diameter is limited by the extrusion ratio which can be achieved at the designed working pressure of the extrusion container. Therefore, increase of product length can only be achieved by increase in the length of the workpiece with consequent increase in the length of the extrusion container to contain the workpiece,which adds to the difficulty and cost of manufacture of such containers.
  • Extrusion apparatus comprisesfirst and second members defining an elongate passageway therebetween, said first and second members being movable one relative to the other in the direction of the length of the passageway, an abutment member fixed relative to said second member to project into and block the passageway, means defining at least one die orifice leading from the passageway and associated with the abutment member, means for continuously feeding material to be extruded into the passageway at a point spaced from the abutment member, the amount of the surface area of the passageway defined by the first member which is movable towards the abutment member being greater than the amount of the surface area of the passageway defined by the second member whereby material fed into the passageway is moved by frictional drag with the surface of the passageway in the first member towards the abutment member and is thereby extruded through the die orifice.
  • a particular form of extrusion apparatus in accordance with the invention comprises a wheel member having an endless groove therein, a shoe member covering part of the length of the groove and forming a passageway therewith, an abutment member projecting from the shoe member into the groove and blocking one end of the passageway, the wheel member being rotatable relative to the shoe member in the direction towards the abutment member, at least one die orifice associated with the abutment member, and means for feeding material to be extruded into the end of the passageway remote from the abutment member so that the .material is carried along in the groove by frictional drag in the direction towards the abutment member and is thereby extruded through the dib orifice.
  • the die orifice may be provided in the leading face of the abutment member.
  • the abutment member may be of solid form, the die orifice being provided in the face of the shoe member in front of the abutment member.
  • the abutment member may be provided with a multiplicity of die orifices in its leading face or in the latter case a multiplicity of die orifices may be formed in the face of the shoe member forward of the solid abutment member.
  • the die orifices may be defined by die insert members fitted in housings.
  • a plurality of shoe members may co-operate with the groove at spaced intervals.
  • a preferred form of extrusion apparatus as disclosed in said copending application Ser. No. 880,127 employs a rotary tool member having an end face with a tooth member projecting therefrom.
  • the tool member is rotated about an axis transverse to the end face having the projecting tooth member so that the tooth member is moved in a circular path with its forward working face in pressure contact with material in the region of the end face of the tool member.
  • the material is subjected to a bulk compressive stress to feed the material continuously into the region of the end face of the tool member.
  • the material forward of the working face of the tooth member is subjected to an additional compressive stress so that the material is formed through a die orifice associated with the tooth member under the influence of the additional compressive stress in combination with the bulk compressive stress acting in the material.
  • Apparatus in accordance with the present invention may be employed for the pressure feeding of material into the region of the end face of the tool member in apparatus of the kind disclosed in said copending application Ser. No. 880,127.
  • FIG. 1 is a part-sectional longitudinal elevation of extrusion apparatus in accordance with the invention
  • FIG. 2 is an exploded isometric view of the apparatus shown in FIG. 1,
  • FIG. 3 is a modification of the arrangement shown in FIGS. 1 and 2,
  • FIG. 4 is a sectional elevation ofa further form of apparatus in accordance with the invention.
  • FIGS. 5, 6, 7, 8 and 9 are details in isometric form of modifications of the apparatus of FIG. 4,
  • FIG. 10 is a sectional detail of a third form of apparatus in accordance with the invention.
  • FIG. 11 is a section along the line XIXI in FIG. 10.
  • the extrusion apparatus shown in FIGS. 1 and 2 comprises a wheel 1 rotatably mounted on a shaft 2.
  • the wheel 1 has a square cross-section circumferential groove 3 machined around its outer edge, the groove being therefore a square surface of revolution about the axis of the wheel.
  • a shoe member 4 fits closely against the edge of the wheel 1.
  • An abutment member 5 formed on the under side of the shoe member 4 projects into the circumferential groove 3 and is complementary in shape to the groove cross section so as to block the groove with a sliding fit.
  • the abutment member 5 has an extrusion orifice 6.
  • a chamber 7 integrally formed with the shoe member 4 has a bore 8 connecting with the circumferential groove 3 in the wheel 1.
  • a sealing block 9 formed on the underside of the shoe member 4 at the opposite end to the abutment member 5 projects into and is a close sliding fit in the circumferential groove 3 in the wheel 1.
  • Material 10 to be extruded is fed under pressure through the bore 8 of the chamber 7 and fills that part of the groove 3 in the wheel 1 underneath the shoe member 4 between the abutment member 5 and the sealing block 9 of the shoe member 4.
  • the material to be extruded may be forced through the chamber 7 into the groove 3 by a ram acting in the bore 8 of the chamber 7. After extrusion of the material within the chamber 7 the ram is withdrawn and further material is supplied to the chamber 7, for example, from a continuous casting unit. Alternatively the material may be fed as powder either intermittently by a ram or continuously by screw feeders.
  • the wheel 1 is rotated clockwise as shown by the arrow 11 in FIG. 1.
  • the material 10 in the circumferential groove 3 beneath the shoemember 4 is carried forward towards the abutment member 5 by the frictional drag of the walls of the circumferential groove 3.
  • pressure is generated in the material in the circumferential groove 3, so that the material is extruded through the orifice 6 in the abutment member 5.
  • the rotation of the wheel 1 drags material under a transverse shearing action from the bore 8 of the chamber 7 so that a continuous extrusion of the material is obtained.
  • Material drawn from the chamber 7 by rotation of the wheel 1 is continually replaced by the continuous feed of fresh material into the chamber 7.
  • the circumferential groove 3 in the wheel 1 in conjunction with the shoe member 4 may be regarded as forming a passageway or channel having four walls.
  • the three walls of the channel defined by the side walls and base of the circumferential groove 3 move continuously towards the abutment member 5.
  • the fourth wall of the channel, defined by the under surface of the shoe member 4 is stationary.
  • the three moving walls of the circumferential groove 3 carry the material 10 by frictional drag, towards the abutment member 5.
  • the material slides over the stationary fourth wall formed by the under surface of the shoe member 4.
  • k the shear strength of the material being extruded. This force of 2.l.w.k. must produce a load on the face of the abutment member 5 of PA where P the pressure required for extrusion of the material A the cross sectional area of the abutment member 5 which is the same as the cross sectional area of the circumferential groove 3.
  • FIG. 3 shows a second arrangement for the continuous extrusion of bar.
  • the arrangement of FIG. 3 is simi lar to that of FIGS. 1 and 2 and similar parts in the two arrangements are referred to by the same reference numerals. v
  • the chamber 8 is omitted from the shoe member 4.
  • a bar 11 of feed material is.fed continuously into the circumferential groove 3 in the edge of the wheel 1.
  • the bar 11 is continuously car ried forward in the groove 3 beneath the shoe member 4 towards the abutment member 5 and the leading end of the bar 11 is continuously extruded through the orifice 6 in the abutment member 5.
  • no external pressure feed is required for the bar 11 and the arrangement is particularly suitable for the extrusion of powdered material which may be fed into the groove 3 by continuous tamping or by a screw feeder.
  • a gravity feed may suffice although measures to ensure free flow may be advisable.
  • a powdered material may not be mixed immediately by the moving surfaces. However, with assistance if necessary, the particles will ultimately pack in a manner which renders frictional drag effective.
  • a roller may be used immediately in advance of the shoe member 4 for pressing the bar into the groove.
  • the apparatus shown in FIG. 4 is of the same basic form as FIGS. 1 and 2 and again similar parts are referred to by the same reference numerals.
  • the apparatus of FIG. 4 comprises a wheel 1 rotatably mounted on a shaft 2.
  • the wheel 1 has a circumferential groove 3 machined around its outer edge.
  • Two shoe members 4 are fitted closely against the edge of the wheel 1.
  • An abutment member 5 is formed on the underside of each shoe member 4 projecting into the circumferential groove 3 on the wheel 1.
  • a die insert 6 is fitted in a housing 7 forward of the abutment member 5.
  • the die insert 6 connects with an outlet passageway 8 leading through the shoe member 4.
  • a bar 9 of feed material is fed continuously into the circumferential groove 3 below each shoe member 4.
  • the wheel 1 is rotated anti-clockwise as shown by the arrow 10.
  • the walls of the circumferential groove 3 exert a frictional drag on each of the bars 9 of feed material.
  • Each bar 9 is drawn along in the groove 3 below the corresponding shoe member 4 towards the abutment member 5 on the shoe member 4.
  • pressure is generated in the material of the bars 9 within the circumferential groove 3 below the shoe members 4 and the leading end of each bar 9 is extruded through the die insert 6.
  • the extruded product passes out radially through the outlet passageways 8.
  • FIG. 4 shows the use of two shoe members 4 in conjunction with the wheel 1 a larger number of shoe members 4 can be employed depending on the diameter of the wheel 1.
  • three shoe members 4 may be used spaced at l20 intervals around the circumference of the wheel 1.
  • An arrangement using shoe members in diametrically opposed relationship serves to balance the thrusts at the wheel member bearings of the radially inward forces generated by the compression of material at the abutment member.
  • Each shoe member 4 may have a single die insert 6 as shown in FIG. 4. Alternatively each shoe member 4 may be fitted with a number of die inserts 6.
  • FIG. 5 shows two die inserts 6 arranged one in front of the other forward of the abutment member 5.
  • FIG. 6 shows four smaller die inserts 6 arranged in a group forward of the abutment member 5. Die inserts having orifices of non-circular cross section may be employed.
  • the die insert 6 has an orifice ll of rectangular form extending parallel to the face of the abutment member 5. In this arrangement the length of the orifice 11 in the die insert 6 is governed by the width of the circumferential groove 3.
  • FIG. 5 shows two die inserts 6 arranged one in front of the other forward of the abutment member 5.
  • FIG. 6 shows four smaller die inserts 6 arranged in a group forward of the abutment member 5. Die inserts having orifices of non-circular cross section may be employed.
  • the die insert 6 has an orifice
  • FIG. 8 shows a porthole die insert 6 enabling the extrusion of a tubular product.
  • the abutment member 5 may be provided with a multiplicity of die orifices 6 which may be in the form of die inserts fitted in housings in the abutment member 5.
  • FIGS. 10 and 1 1 are details of an extrusion apparatus again including a wheel 1 having a circumferential groove 3 around its outer edge.
  • a shoe member 4 is fitted closely against the edge of the wheel 1.
  • An abutment member 5 is formed on the under side of the shoe member 4 projecting into the circumferential groove 3 on the wheel 1.
  • a radial drilling 12 in the shoe member 4 forward of the abutment member 5 houses a rotary tool member 13.
  • the lower end face 14 of the tool member 13 has a tooth shaped projection 15 and a die insert 16 is fitted in the face 14 of the tool member 13.
  • a guide member 17 having a wedge shaped base 18 with a cylindrical boss 19 is fitted in the groove 3 of the wheel 1 in front of the abutment member 5.
  • the wheel 1 In use of the apparatus of FIGS. 10 and 11 the wheel 1 is rotated anti-clockwise relative to the shoe member 4 in the direction of the arrow 20 in FIG. 10.
  • the walls of the groove 3 in the wheel 1 exert a frictional drag on feed material 1 in the groove 3.
  • rotation of the wheel 1 feeds the material towards the abutment member 5 of the shoe member 4 and the guide member 17 distributes the material 21 into the region of the lower end face 14 of the rotary tool member 13.
  • An overall compressive stress is also generated in the material 21 within the circumferential groove 3 of the wheel 1 below the tool member 13.
  • Rotation of the tool member 13 in the direction of the arrow 22 in FIG. 1 1 drives the projection through the material 21 in the groove 3 below the tool member 13.
  • the material 21 forward of the projection 15 is subjected to an additional compressive stress which, in combination with the overall compressive stress acting in the material 21 causes extrusion through the die insert 16.
  • the fit of the abutment member in the groove is not necessarily critical. Some material may extrude as flash through clearances but since such flash will be largely the outer skin in the case of a solid feed the separation of this skin from the product may even be advantageous if the feed has surface impurities. It will further be appreciated that the groove shape need not be square or rectangular; instead of the side walls being parallel they may be angled and form, for example, a truncated V groove.
  • a process of continuously extruding metal which comprises the steps of feeding metal into one end of a passageway formed beteen a first member and a second member with the second member having a greater surface area for engaging the metal than the first member, said passageway having a closed end remote from said one end and having die means at said closed end, and moving the second member relative to the first member in a direction towards the die means from said one end to said closed end such that the frictional drag of the passageway defining surfaces of the second member draw the metal through the passageway and through the die means.
  • passageway is formed between a wheel member having an endless groove therein and a shoe member covering a part of the length of the groove, and wherein the wheel member is rotated in a direction to drag metal through the passageway and the die means.
  • Extrusion apparatus comprising first and second members defining an elongate passageway therebetween, said first and second members being movable one relative to the other in the direction of the length of the passageway, an abutment member fixed relative to said second member projecting into and blocking the passageway, means defining at least one die orifice leading from the passageway adjacent the abutment member, said orifice extending from said passageway to a point outside said apparatus whereby material fed to said apparatus is extruded therethrough, means for continuously feeding material to be extruded from a position outside said apparatus into said passageway at a point spaced from the abutment member, the amount of the surface area of the passageway defined by the first member which is movable towards the abutment member being greater than the amount of the surface area of the passageway defined by the second member,
  • Extrusion apparatus comprising a wheel member having an endless groove therein, a shoe member covering part only of the length of the groove and forming a passageway therewith, an abutment member projecting from the shoe member into the groove and blocking one end of the passageway, the wheel member being rotatable relative to the shoe member in the direction towards the abutment member, at least one die orifice adjacent the abutment member, and means for feeding material to be extruded into the end of the passageway remote from the abutment member so that the material is carried along in the groove by frictional drag in the direction towards the abutment member and is thereby extruded through the die orifice.
  • Extrusion apparatus wherein the groove is of uniform cross sectional shape throughout its length and is defined by a surface of revolution about the axis of the wheel member.
  • Extrusion apparatus in which the passageway has a uniform cross sectional shape throughout its length.
  • Extrusion apparatus as claimed in claim 3, wherein a multiplicity of die orifices are provided in the leading face of the abutment member.
  • Extrusion apparatus as claimed in claim 4 wherein said abutment member is of solid form, said die orifice being provided in the face of the shoe member in front of the abutment member.
  • Extrusion apparatus as claimed in claim 4 wherein a multiplicity of die orifices are provided in the face of the shoe member forward of the solid abutment member.
  • Extrusion apparatus as claimed in claim 4 wherein the device includes a plurality of shoe members co-operating with the groove at spaced intervals, each of said shoe members forming a said passageway.
  • Extrusion apparatus as claimed in claims 4 wherein a tool member having a material working face is provided for operation on material in the groove of the wheel member in the region adjacent the abutment member, means being provided for moving said tool member in a closed cyclic path so that the material in the groove adjacent the abutment member is subjected to additional compressive stress by the working face of the tool member whereby the material is extruded through the die orifice under the influence of the additional compressive stress in combination with the bulk compressive stress set up in the material within the groove by rotation of the wheel member.
  • Extrusion apparatus as claimed in claim 4 wherein a rotary tool member having an end face with a tooth member projecting therefrom and a die orifice associated with the tooth member is fitted in a housing in the shoe member with the end face of the tool member open to the region of the groove adjacent the face of the abutment member, means being provided for rotating the tool member about its axis transverse to the end face having the projecting tooth member so that the tooth member is moved in a circular path with its forward working face in pressure contact with the material in the region of the groove adjacent the face of the abutment member whereby the material forward of the working face of the tooth member is subjected to an additional compressive stress so that the material is extruded through the die orifice under the influence of the additional compressive stress in combination with the bulk compressive stress set up in the material within the groove by rotation of the wheel member.
  • Extrusion apparatus as claimed in claim 14 wherein a guide member is provided for distributing to the end face of the rotary tool member, the material in the region of the groove adjacent the face of the abutment member, said guide member having a wedge shaped base which is located at the bottom of the groove and tapering away from the face of the abutment member, the base of the guide member having an upstanding boss the end face of which bears centrally on the end face of the tool member so that the tooth member which projects from the end face thereof rotates around the end of the boss of the guide member as the tool member is rotated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Of Metal (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)
US00228673A 1971-03-12 1972-02-23 Extrusion Expired - Lifetime US3765216A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB677871 1971-03-12
GB366872*[A GB1370894A (en) 1971-03-12 1972-01-26 Extrusion

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US3765216A true US3765216A (en) 1973-10-16

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US00228673A Expired - Lifetime US3765216A (en) 1971-03-12 1972-02-23 Extrusion

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US (1) US3765216A (sv)
JP (1) JPS5138316B1 (sv)
BE (1) BE780557A (sv)
CA (1) CA959792A (sv)
DE (1) DE2211696C2 (sv)
FR (1) FR2128843B1 (sv)
GB (1) GB1370894A (sv)
IT (1) IT966887B (sv)
NO (1) NO139724C (sv)
SE (1) SE386605B (sv)
ZM (1) ZM4172A1 (sv)

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US20100014818A1 (en) * 2005-03-29 2010-01-21 Luis Sales Casals Method and apparatus for manufacturing an optical cable and cable so manufactured
CN101359523B (zh) * 2007-12-29 2011-05-04 天津经纬电材股份有限公司 一种漆包铝扁线的制作方法
WO2012006270A1 (en) 2010-07-06 2012-01-12 Austen Alfred R Method and apparatus for applying uniaxial compression stresses to a moving wire
US8406590B2 (en) 2009-10-06 2013-03-26 Prysmian Cavi E Sistemi Energia S.R.L. Apparatus for manufacturing an optical cable and cable so manufactured
US20140060141A1 (en) * 2011-05-18 2014-03-06 Instytut Obróbki Plastycznej Method of extruding elements, especially made of metal, and a system for extruding elements, especially made of metal
US9248484B2 (en) 2010-07-06 2016-02-02 Alfred R. Austen Method and apparatus for applying uniaxial compression stresses to a moving wire
US9468960B2 (en) 2011-03-10 2016-10-18 Commonwealth Scientific And Industrial Research Organisation Extrusion of high temperature formable non-ferrous metals
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WO2020007514A1 (en) 2018-07-05 2020-01-09 Feinrohren S.P.A. Continuous method for producing capillaries made of nonferrous alloys
RU2786551C2 (ru) * 2018-07-05 2022-12-22 Фейнрорен С.П.А. Непрерывный способ изготовления капилляров, выполненных из цветных сплавов

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DE3145052A1 (de) * 1981-11-12 1983-05-19 Yazaki Corp., Tokyo "verfahren und vorrichtung zum herstellen eines verseilten kabels"
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US5497873A (en) * 1993-12-08 1996-03-12 Stamet, Inc. Apparatus and method employing an inlet extension for transporting and metering fine particulate and powdery material
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US6596963B2 (en) * 2001-08-31 2003-07-22 General Electric Company Production and use of welding filler metal
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US7293445B2 (en) * 2003-06-13 2007-11-13 General Motors Corporation Sheet processing apparatus, method of use, and plastically deformed sheet
US20080028814A1 (en) * 2003-06-13 2008-02-07 Lev Leonid C Sheet processing apparatus, method of use, and plastically deformed sheet
US7552611B2 (en) 2003-06-13 2009-06-30 Gm Global Technology Operations, Inc. Sheet processing apparatus, method of use, and plastically deformed sheet
US20060118282A1 (en) * 2004-12-03 2006-06-08 Baolute Ren Heat exchanger tubing by continuous extrusion
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US20060130549A1 (en) * 2004-12-16 2006-06-22 Zhu Yuntian T Continuous equal channel angular pressing
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US20080202653A1 (en) * 2005-02-18 2008-08-28 Luvata Oy Extrusion of a Metal Alloy Containing Copper and Zinc
US20100014818A1 (en) * 2005-03-29 2010-01-21 Luis Sales Casals Method and apparatus for manufacturing an optical cable and cable so manufactured
US8150226B2 (en) 2005-03-29 2012-04-03 Prysmian Cavi E Sistemi Energia S.R.L. Method and apparatus for manufacturing an optical cable and cable so manufactured
CN100393437C (zh) * 2006-06-19 2008-06-11 云南铜业股份有限公司 利用单轮槽连续挤压机生产挤压产品的方法及其装置
US7481091B1 (en) * 2006-07-27 2009-01-27 Grant David F Material processing system
CN101359523B (zh) * 2007-12-29 2011-05-04 天津经纬电材股份有限公司 一种漆包铝扁线的制作方法
EP2145704A1 (en) 2008-07-08 2010-01-20 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Method and apparatus for continuous extrusion of thixo-magnesium into plate or bar shaped extrusion products
US8406590B2 (en) 2009-10-06 2013-03-26 Prysmian Cavi E Sistemi Energia S.R.L. Apparatus for manufacturing an optical cable and cable so manufactured
US8534108B2 (en) 2010-07-06 2013-09-17 Alfred R. Austen Method and apparatus for applying uniaxial compression stresses to a moving wire
WO2012006270A1 (en) 2010-07-06 2012-01-12 Austen Alfred R Method and apparatus for applying uniaxial compression stresses to a moving wire
US8959970B2 (en) 2010-07-06 2015-02-24 Alfred R. Austen Method and apparatus for applying uniaxial compression stresses to a moving wire
US9248484B2 (en) 2010-07-06 2016-02-02 Alfred R. Austen Method and apparatus for applying uniaxial compression stresses to a moving wire
US9468960B2 (en) 2011-03-10 2016-10-18 Commonwealth Scientific And Industrial Research Organisation Extrusion of high temperature formable non-ferrous metals
US20140060141A1 (en) * 2011-05-18 2014-03-06 Instytut Obróbki Plastycznej Method of extruding elements, especially made of metal, and a system for extruding elements, especially made of metal
WO2017027711A2 (en) 2015-08-12 2017-02-16 Alcoa Inc. Apparatus, manufacture, composition and method for producing long length tubing and uses thereof
CN106424200A (zh) * 2015-08-12 2017-02-22 美铝公司 用于生产超长管件的装置、制品、组分和方法及其使用
WO2020007514A1 (en) 2018-07-05 2020-01-09 Feinrohren S.P.A. Continuous method for producing capillaries made of nonferrous alloys
RU2786551C2 (ru) * 2018-07-05 2022-12-22 Фейнрорен С.П.А. Непрерывный способ изготовления капилляров, выполненных из цветных сплавов
US11717870B2 (en) 2018-07-05 2023-08-08 Feinrohren S.P.A. Continuous method for producing capillaries made of nonferrous alloys

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BE780557A (fr) 1972-09-11
SE386605B (sv) 1976-08-16
DE2211696C2 (de) 1982-08-05
JPS5138316B1 (sv) 1976-10-21
DE2211696A1 (de) 1972-09-28
FR2128843B1 (sv) 1975-10-24
NO139724C (no) 1979-05-02
CA959792A (en) 1974-12-24
ZM4172A1 (en) 1972-11-21
FR2128843A1 (sv) 1972-10-20
GB1370894A (en) 1974-10-16
NO139724B (no) 1979-01-22
IT966887B (it) 1974-02-20

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