GB1389043A - Method of and apparatus for cold drawing metal tubes - Google Patents

Method of and apparatus for cold drawing metal tubes

Info

Publication number
GB1389043A
GB1389043A GB2828472A GB2828472A GB1389043A GB 1389043 A GB1389043 A GB 1389043A GB 2828472 A GB2828472 A GB 2828472A GB 2828472 A GB2828472 A GB 2828472A GB 1389043 A GB1389043 A GB 1389043A
Authority
GB
United Kingdom
Prior art keywords
degrees
tube
lubricant
pressure
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2828472A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benteler Deustchland GmbH
Original Assignee
Benteler Deustchland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benteler Deustchland GmbH filed Critical Benteler Deustchland GmbH
Publication of GB1389043A publication Critical patent/GB1389043A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

1389043 Drawing BENTELER-WERKE AG 16 June 1972 [24 June 1971] 28284/72 Heading B3P A metal tube 1 is drawn through a train of drawing dies 4, each of which is preceded by a sleeve 5 defining with the tube 1 an annular, converging gap 12 which is supplied with lubricant at an initial pressure not exceeding 100 atmos. which is raised to a working pressure of at least 600 atmos. in front of the die 4 as the drawing proceeds resulting in no surface to surface contact between the tube 1 and the dies 4. Lubricant at a pressure of 20-100 atm. is introduced through an inlet 13 into the conconverging gap 12 formed between the tube 1 the sleeve 5 which is held against the die 4 in a dieholder 3 by a ring 7 and whose inner surface has a taper γ of not more than 3 degrees, e.g. 1À5 degrees. The length of the gap 12 is at least equal to 5-15 times the diameter of the tube 1. At a drawing speed of more than 200 m./sec., e.g. 300 m./sec., the pressure of the lubricant is increased to 2200-3000 atm. An increase in lubricant pressure is generated in the tube interior by supplying lubricant from a pipe 16 into a converging gap 15 formed betseen the tube interior and a floating plug 14 having a taper γ, of not more than 3 degrees, e.g. 1À5 degrees. The plug 14 has a conical portion 14b having an angle # of 5-15 degrees, e.g. 9 degrees whilst the corresponding conical portion of the die 4 has an angle α of 10-20 degrees, e.g. 15 degrees. Lubricant is passed through the plug 14 by a pipe 17. A steel tube having an external diameter of 9-35 mm. and a wall thickness less than 3À5 mm. may be so drawn to a diameter of 3 mm. and a wall thickness of less than 1 mm.
GB2828472A 1971-06-24 1972-06-16 Method of and apparatus for cold drawing metal tubes Expired GB1389043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712131343 DE2131343A1 (en) 1971-06-24 1971-06-24 METHOD AND DEVICE FOR COLD DRAWING METAL PIPES, IN PARTICULAR MADE OF STEEL

Publications (1)

Publication Number Publication Date
GB1389043A true GB1389043A (en) 1975-04-03

Family

ID=5811669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2828472A Expired GB1389043A (en) 1971-06-24 1972-06-16 Method of and apparatus for cold drawing metal tubes

Country Status (16)

Country Link
US (1) US3798943A (en)
JP (1) JPS5147151B1 (en)
AR (1) AR193879A1 (en)
AT (1) AT324269B (en)
BE (1) BE785273A (en)
BR (1) BR7204113D0 (en)
CA (1) CA954071A (en)
CH (1) CH563197A5 (en)
DE (1) DE2131343A1 (en)
ES (2) ES403301A1 (en)
FR (1) FR2143193B1 (en)
GB (1) GB1389043A (en)
IT (1) IT965825B (en)
LU (1) LU65577A1 (en)
NL (1) NL167339C (en)
SE (1) SE405453B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169232A (en) * 1984-12-17 1986-07-09 Npsp Hydroplast Obrabot Metal Wire drawing device

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558671C2 (en) * 1975-12-24 1985-10-24 Benteler-Werke Ag, 4794 Schloss Neuhaus Cold drawing device for reducing pipes
DD210526A3 (en) * 1981-07-09 1984-06-13 Adw Ddr METHOD FOR ONE OR MULTI-STAGE DRAWING OF METALLIC FORMING GOODS
DE2921622A1 (en) * 1979-05-28 1980-12-04 Hitachi Cable Coated metal wire drawing die - with two stepped truncated cone sections of specified shape using fluid lubricant
JPS56119626A (en) * 1980-02-22 1981-09-19 Hitachi Ltd Pipe bending machine
DD210524A3 (en) * 1981-07-09 1984-06-13 Adw Ddr METHOD FOR MULTI-STAGE PULLING
JPS63188422A (en) * 1987-01-29 1988-08-04 Showa Alum Corp Drawing die for aluminum pipe
JP2522397B2 (en) * 1989-03-27 1996-08-07 住友金属工業株式会社 Small diameter long pipe material manufacturing method
US5253678A (en) * 1989-03-27 1993-10-19 Sumitomo Metal Industries, Ltd. Long tube having a small diameter
EP0592461A1 (en) * 1992-05-04 1994-04-20 American National Can Company Device for drawing metallic or plastic coated metallic cans
US5557981A (en) * 1993-05-25 1996-09-24 Tamco Limited One-piece gearshift lever with cold formed end
US5992197A (en) * 1997-03-28 1999-11-30 The Budd Company Forming technique using discrete heating zones
US6098437A (en) * 1998-03-20 2000-08-08 The Budd Company Hydroformed control arm
US6006568A (en) * 1998-03-20 1999-12-28 The Budd Company Multi-piece hydroforming tool
US6309195B1 (en) * 1998-06-05 2001-10-30 Halliburton Energy Services, Inc. Internally profiled stator tube
US6209372B1 (en) 1999-09-20 2001-04-03 The Budd Company Internal hydroformed reinforcements
FR2820661B1 (en) * 2001-02-14 2004-09-24 Roger Marcel Sabau DEVICE FOR DRAWING OR DRAWING FERROUS AND NON-FERROUS METALS (WIRES, BARS, TUBES) WITH NEARLY ZERO WEARING OF THE DIES AND TOTAL RESPECT OF THE SURFACE CONDITION OF ALL PRODUCTS MANUFACTURED
FR2820660B1 (en) * 2001-02-14 2003-04-04 Roger Marcel Sabau DEVICE FOR DRAWING OR DRAWING METALS, FERROUS AND NON-FERROUS (WIRES, BARS, TUBES) WITH NEARLY ZERO WEARING OF THE DIES AND TOTAL RESPECT OF THE SURFACE CONDITION OF ALL PRODUCTS MANUFACTURED
EP1388379A1 (en) * 2002-08-08 2004-02-11 Roger Sabau Device for drawing or stretching (wires, bars, tubes) with a quasi zero wear of the die and the reaching of optimal tribological conditions
CN100574909C (en) * 2004-01-16 2009-12-30 住友金属工业株式会社 The manufacture method of seamless pipe
KR101384010B1 (en) * 2010-06-15 2014-04-09 신닛테츠스미킨 카부시키카이샤 Cold drawing method for metal pipe, and process for production of metal pipe utilizing the method
CN102847740B (en) * 2012-09-28 2014-12-10 李维生 Initiative spiral extrusion type forced lubrication drawing die box
CN111495996B (en) * 2020-05-13 2021-02-12 华中科技大学 Liquid-filling drawing device and method for miniature thin-wall metal pipe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA571905A (en) * 1959-03-10 G. Christopherson Derman Method of and apparatus for wire drawing
US2173099A (en) * 1937-01-28 1939-09-19 Vascoloy Ramet Corp Means and method of tube drawing
US2351710A (en) * 1941-03-05 1944-06-20 Nat Tube Co Cold-drawing pipes and tubes
US2308120A (en) * 1941-06-09 1943-01-12 Lewin Mathes Company Tube drawing apparatus
US2355734A (en) * 1943-05-06 1944-08-15 Bundy Tubing Co Floating pin mandrel
US3292407A (en) * 1964-06-18 1966-12-20 Bruce B Krost Tube drawing apparatus
DE1602243A1 (en) * 1966-09-28 1970-08-06 British Iron Steel Research Drawing device and method for drawing, in particular for wire drawing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169232A (en) * 1984-12-17 1986-07-09 Npsp Hydroplast Obrabot Metal Wire drawing device

Also Published As

Publication number Publication date
US3798943A (en) 1974-03-26
BE785273A (en) 1972-12-22
LU65577A1 (en) 1972-10-25
SE405453B (en) 1978-12-11
NL167339C (en) 1981-12-16
FR2143193A1 (en) 1973-02-02
FR2143193B1 (en) 1978-06-02
AR193879A1 (en) 1973-05-31
ES403301A1 (en) 1976-01-01
DE2131343A1 (en) 1973-01-11
ES430920A1 (en) 1976-10-16
NL167339B (en) 1981-07-16
IT965825B (en) 1974-02-11
BR7204113D0 (en) 1973-07-24
NL7208678A (en) 1972-12-28
JPS5147151B1 (en) 1976-12-13
CA954071A (en) 1974-09-03
AT324269B (en) 1975-08-25
CH563197A5 (en) 1975-06-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee