FR2417349A1 - Etirage de tubes a froid, comportant une reduction d'epaisseur en plusieurs etapes au cours d'une meme passe - Google Patents

Etirage de tubes a froid, comportant une reduction d'epaisseur en plusieurs etapes au cours d'une meme passe

Info

Publication number
FR2417349A1
FR2417349A1 FR7904310A FR7904310A FR2417349A1 FR 2417349 A1 FR2417349 A1 FR 2417349A1 FR 7904310 A FR7904310 A FR 7904310A FR 7904310 A FR7904310 A FR 7904310A FR 2417349 A1 FR2417349 A1 FR 2417349A1
Authority
FR
France
Prior art keywords
same pass
several steps
thickness reduction
steps during
cold tube
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.)
Granted
Application number
FR7904310A
Other languages
English (en)
Other versions
FR2417349B1 (fr
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of FR2417349A1 publication Critical patent/FR2417349A1/fr
Application granted granted Critical
Publication of FR2417349B1 publication Critical patent/FR2417349B1/fr
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
    • B21C3/16—Mandrels; Mounting or adjusting same

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Etirage de tubes à froid, comportant une réduction d'épaisseur en plusieurs étapes au cours d'une même passe. L'invention propose une tête de mandrin comportant une première section ouvrière cylindrique jointe angulairement à une seconde section ouvrière cylindrique de diamètre inférieur, et disposée à l'intérieur de l'ouverture de filière en position fixe, avec la première section ouvrière adjacente au coté sortie de l'ouverture de filière, et le joint de la section étant disposé à l'intérieur de la zone d'étirage de sorte que l'achèvement de la réduction de la surface interne du tube machine quand celui-ci est tiré axialement est effectué à l'intérieur de la zone d'étirage. Applicable à l'étirage de tubes en général.
FR7904310A 1978-02-21 1979-02-20 Etirage de tubes a froid, comportant une reduction d'epaisseur en plusieurs etapes au cours d'une meme passe Expired FR2417349B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/879,288 US4148207A (en) 1978-02-21 1978-02-21 Drawing technique

Publications (2)

Publication Number Publication Date
FR2417349A1 true FR2417349A1 (fr) 1979-09-14
FR2417349B1 FR2417349B1 (fr) 1985-08-30

Family

ID=25373824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904310A Expired FR2417349B1 (fr) 1978-02-21 1979-02-20 Etirage de tubes a froid, comportant une reduction d'epaisseur en plusieurs etapes au cours d'une meme passe

Country Status (8)

Country Link
US (1) US4148207A (fr)
JP (1) JPS54117366A (fr)
AT (1) AT372021B (fr)
CA (1) CA1106316A (fr)
DE (1) DE2839168C2 (fr)
FR (1) FR2417349B1 (fr)
GB (2) GB2067446B (fr)
SE (2) SE442712B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467644A1 (fr) * 1979-10-25 1981-04-30 Savin Gennady Procede d'etirage de tubes et mandrin auto-ajustable pour la mise en oeuvre de ce procede
DE3016135C2 (de) * 1980-04-24 1983-04-14 Mannesmann AG, 4000 Düsseldorf Zieheinrichtung
DE3360681D1 (en) 1982-02-11 1985-10-10 Bbc Brown Boveri & Cie Method for preventing enlargement of the bore of the hub of an element of a turbo machine due to plastic deformation during the centrifugation test
JPS5913766U (ja) * 1982-07-20 1984-01-27 三菱電機株式会社 電磁弁
JPS61162013U (fr) * 1985-03-27 1986-10-07
US4854148A (en) * 1987-06-19 1989-08-08 The Babcock & Wilcox Company Cold drawing technique and apparatus for forming internally grooved tubes
US5557981A (en) * 1993-05-25 1996-09-24 Tamco Limited One-piece gearshift lever with cold formed end
US5870921A (en) * 1997-07-31 1999-02-16 Piccinin; Gabriel Extrusion die for semi-hollow and hollow extruded shapes and tube
US8281479B2 (en) * 2000-02-25 2012-10-09 Streamlight, Inc. Stylus flashlight housing and method for making same
US20060218985A1 (en) * 2003-04-11 2006-10-05 Kazuhito Kenmochi Tube with high dimensional accuracy, and method and device for manufacturing the tube
US20050286166A1 (en) * 2004-06-24 2005-12-29 Nidec Corporation Method of Manufacturing Thrust Plate, Method of Manufacturing Shaft for Dynamic Pressure Bearing, Dynamic Pressure Bearing, Spindle Motor and Recording Disc Driving Apparatus
CN101817026A (zh) * 2010-04-01 2010-09-01 浙江伦宝金属管业有限公司 拔制管材用芯棒
CN103920731A (zh) * 2014-04-01 2014-07-16 太仓东青金属制品有限公司 一种精密卧式伸管机及全自动高效精密拉伸法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE445850A (fr) *
BE395725A (fr) *
US3513682A (en) * 1967-07-13 1970-05-26 Anaconda American Brass Co Method for processing welded tube
FR2089772A5 (fr) * 1971-04-16 1972-01-07 Inst Metalurgii Zela

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183861A (en) * 1939-03-23 1939-12-19 Bridgeport Brass Co Method of and means for machining interior surfaces of tubes
US2228301A (en) * 1939-08-22 1941-01-14 Phelps Dodge Copper Prod Tube drawing method and apparatus
US2408325A (en) * 1944-10-21 1946-09-24 Nat Tube Co Working tubular articles
US3167176A (en) * 1961-12-04 1965-01-26 Babcock & Wilcox Co Method of and apparatus for correcting tube eccentricity
FR2112126B1 (fr) * 1970-11-06 1974-02-01 Besson Louis
JPS50142743U (fr) * 1974-05-16 1975-11-25
JPS51117829U (fr) * 1975-03-20 1976-09-24

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE445850A (fr) *
BE395725A (fr) *
US3513682A (en) * 1967-07-13 1970-05-26 Anaconda American Brass Co Method for processing welded tube
FR2089772A5 (fr) * 1971-04-16 1972-01-07 Inst Metalurgii Zela

Also Published As

Publication number Publication date
DE2839168C2 (de) 1982-04-29
GB2067446A (en) 1981-07-30
SE7809095L (sv) 1979-08-22
CA1106316A (fr) 1981-08-04
US4148207A (en) 1979-04-10
AT372021B (de) 1983-08-25
GB2014890A (en) 1979-09-05
JPS5635962B2 (fr) 1981-08-20
DE2839168A1 (de) 1979-08-23
GB2014890B (en) 1982-08-18
SE442712B (sv) 1986-01-27
SE452417B (sv) 1987-11-30
FR2417349B1 (fr) 1985-08-30
SE8404745D0 (sv) 1984-09-21
GB2067446B (en) 1982-10-13
JPS54117366A (en) 1979-09-12
ATA539178A (de) 1983-01-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse