EP1155759A2 - Procédé de préparation d'un fin de tube pour tirer sur un mandrin de traction - Google Patents

Procédé de préparation d'un fin de tube pour tirer sur un mandrin de traction Download PDF

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Publication number
EP1155759A2
EP1155759A2 EP01250171A EP01250171A EP1155759A2 EP 1155759 A2 EP1155759 A2 EP 1155759A2 EP 01250171 A EP01250171 A EP 01250171A EP 01250171 A EP01250171 A EP 01250171A EP 1155759 A2 EP1155759 A2 EP 1155759A2
Authority
EP
European Patent Office
Prior art keywords
pipe
mandrel
wall thickness
rolling
section
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.)
Withdrawn
Application number
EP01250171A
Other languages
German (de)
English (en)
Inventor
Karl Heinz Häusler
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1155759A2 publication Critical patent/EP1155759A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/32—Feeding or discharging the material or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube

Definitions

  • the invention relates to a method for preparing a pipe start for drawing over a mandrel.
  • DE-PS 43 13 648 is a device for batch stretching of pipes known. Large wall thickness reductions can be achieved with the aid of this device are similar to the known cold crawl process.
  • the invention has for its object to provide a method with which the Tightening conditions when pulling straight or when pulling the drum with one have the flying thorn improved.
  • the roller head rotates around the tube.
  • the reels are radially adjustable from outside during rolling, so that a certain contour the pipe surface can be scanned.
  • a mandrel the diameter of which on a Part length corresponds to the inside diameter of the tube, is previously in the tube inserted. It has a taper at its tip, which is the contour of the one to be rolled in Surround corresponds. Due to the adjustable rollers, a bead is now in the Rolled pipe in. As a result of the three-roller arrangement, the Eccentricity improved. After rolling, one or more mandrels are inserted into the Pushed the pipe end in and set a drawbar.
  • FIG. 1 shows a longitudinal section through the beginning of the pipe 3 a mandrel 1 inserted as an internal tool, which is also an integral part of the rolling device 5 with the rollers 2. At the same time as the mandrel, the rollers advance until they have reached position "a".
  • wall thinning is achieved by rolling over once. At Materials that are difficult to form can be repeated one or more times become.
  • Fig. 2 shows a view of the system of the three-roll apparatus.
  • the number of Rolling can be ⁇ 3 or> 3.
  • Fig. 3 shows the pipe end prepared according to the invention with a drawn drawbar 6 and an inserted pulling plug 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP01250171A 2000-05-17 2001-05-16 Procédé de préparation d'un fin de tube pour tirer sur un mandrin de traction Withdrawn EP1155759A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024647 2000-05-17
DE10024647A DE10024647A1 (de) 2000-05-17 2000-05-17 Verfahren zur Vorbereitung eines Rohranfanges für das Ziehen über einen Ziehdorn

Publications (1)

Publication Number Publication Date
EP1155759A2 true EP1155759A2 (fr) 2001-11-21

Family

ID=7642698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01250171A Withdrawn EP1155759A2 (fr) 2000-05-17 2001-05-16 Procédé de préparation d'un fin de tube pour tirer sur un mandrin de traction

Country Status (4)

Country Link
US (1) US6523385B2 (fr)
EP (1) EP1155759A2 (fr)
DE (1) DE10024647A1 (fr)
PL (1) PL347567A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103862293A (zh) * 2012-12-10 2014-06-18 信宜市汇美电器有限公司 一种空心型材的封口装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110124421A1 (en) * 2003-12-03 2011-05-26 Christine Kienhofer Method for producing a tubular drive shaft, in particular a cardan shaft for a motor vehicle
US7922065B2 (en) 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
US8910409B1 (en) * 2010-02-09 2014-12-16 Ati Properties, Inc. System and method of producing autofrettage in tubular components using a flowforming process
US8869443B2 (en) 2011-03-02 2014-10-28 Ati Properties, Inc. Composite gun barrel with outer sleeve made from shape memory alloy to dampen firing vibrations
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
US10040108B2 (en) * 2014-09-18 2018-08-07 L&W Engineering Tubular structure support with variable dimensions and mechanical properties

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882851A (en) * 1957-09-10 1959-04-21 Samuel F Graves Tube reducing machine
US3299680A (en) * 1965-06-10 1967-01-24 Earl A Thompson Rolling machine for forming tubular workpieces
JPS51143566A (en) * 1975-06-04 1976-12-09 Fuji Machine Mfg Method and equipment for making metallic bats
DE3426606A1 (de) * 1984-07-19 1986-01-30 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Lenkstockschalter fuer kraftfahrzeuge
DE4313648C2 (de) 1993-04-21 1997-10-09 Mannesmann Ag Verfahren und Vorrichtung zum Herstellen von nahtlosen Rohren durch Drückwalzen
DE19532951A1 (de) * 1995-09-07 1997-03-13 Dynamit Nobel Ag Verfahren und Vorrichtung zur Herstellung von drückgewalzten Rohren mit inneren Wandverdickungen an den Enden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103862293A (zh) * 2012-12-10 2014-06-18 信宜市汇美电器有限公司 一种空心型材的封口装置

Also Published As

Publication number Publication date
US20010042394A1 (en) 2001-11-22
PL347567A1 (en) 2001-11-19
DE10024647A1 (de) 2001-12-06
US6523385B2 (en) 2003-02-25

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