EP1116528A2 - Procödé de fabrication d'un raccordement de tuyau en forme de T - Google Patents

Procödé de fabrication d'un raccordement de tuyau en forme de T Download PDF

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Publication number
EP1116528A2
EP1116528A2 EP00127138A EP00127138A EP1116528A2 EP 1116528 A2 EP1116528 A2 EP 1116528A2 EP 00127138 A EP00127138 A EP 00127138A EP 00127138 A EP00127138 A EP 00127138A EP 1116528 A2 EP1116528 A2 EP 1116528A2
Authority
EP
European Patent Office
Prior art keywords
tube
metal sheet
shaped pipe
opening
pipe 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Withdrawn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
EP00127138A
Other languages
German (de)
English (en)
Other versions
EP1116528A3 (fr
Inventor
Walter Viegener
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.)
Viega GmbH and Co KG
Original Assignee
Franz Viegener II GmbH and Co KG
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 Franz Viegener II GmbH and Co KG filed Critical Franz Viegener II GmbH and Co KG
Publication of EP1116528A2 publication Critical patent/EP1116528A2/fr
Publication of EP1116528A3 publication Critical patent/EP1116528A3/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Withdrawn legal-status Critical Current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
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/296—Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube

Definitions

  • the invention relates to a method for producing a T-shaped pipe section.
  • Such pipe sections usually consist of metal and serve as a branch in one hydraulic pipe system.
  • DE 33 42 091 A1 describes a method for producing a T-shaped pipe branch piece in which from a starting pipe section through several forming steps the T-shaped final shape is generated. For this, the output pipe section filled with a medium and placed in a mold. In the mold are stamped from two opposite sides, so that the pipe section is compressed and the medium is pressurized. One in the opening arranged in the mold enables the pressing of one side branch. After this branch is formed, an opening will be created provided in the branch to give the T-shaped pipe section its final shape give.
  • the T-shaped pipe section is made by punching out an opening in one, essentially flat metal sheet, attaching a tube to the punched Opening, forming the metal sheet into a hollow profile with adjacent Edges and connecting and sealing the adjacent edges to Formation of the T-shaped pipe section is produced, the length of the one hand three pipe ends of the finished T-shaped pipe section can be freely selected by measure the length of the metal sheet and the attached pipe accordingly become. Furthermore, there are in the transition area between the tube and the initially flat-formed metal sheet only low tensions, which is a subordinate Roll to have the later wall thickness. Unlike the known one Process is formed in the transition area between the pipe and the one Metal sheet generates only minimal deformation, so that the entire pipe section has essentially the same wall thickness everywhere.
  • the Forming the metal sheet into a hollow profile in several steps carried out.
  • different types of tools such as bending, and upsetting devices can be used, the most gentle material forming possible allow.
  • the end portion of the tube is at the punched opening is attached, sculpted before attaching, i.e. expanded. This will the transition between the hollow profile formed from the sheet metal and the attached pipe round, indicating the flow loss of a flowing medium reduced.
  • a tight connection between pipe and sheet metal is obtained if the End portion of the tube is welded to the sheet metal at the opening.
  • the end section of the tube is preferably sculpted so far that the Front edge of the tube is placed on the inner edge of the opening for attachment. This ensures a flat connection between the tube and metal sheet without that the connection point has a large connection seam.
  • a particularly round transition between pipe and sheet metal can also be achieved are formed when a tip facing the tube is formed in the region of the opening becomes.
  • the round mouth does not necessarily have to be through the tapped one Tube can be provided, but can be formed by forming a round projection adjacent to the opening in the metal sheet. It is it is also possible to have both a sculpted tube and an expanded one Use sheet metal to manufacture the pipe section.
  • T-shaped pipe pieces provide that in a metal sheet is punched at the same time several openings, each of which a pipe is attached. This allows either several T-shaped pipe sections be formed integrally with each other, or in one operation at the same time several separable T-shaped pipe pieces are produced.
  • the Manufacture of such units from T-shaped pipe sections can either be clocked in individual work steps, or continuously by appropriate Forming process.
  • a T-shaped pipe piece made of metal is also provided is produced in particular by the method according to the invention and the Features of claim 9.
  • a metal sheet 2 with a Provide opening 3 by feeding the metal sheet 2 to a punching device becomes. It is also possible to have a plurality of openings lying in a line in the metal sheet 2 3 to be provided. At each opening 3, a pipe section 4 is attached, which to the metal sheet 2 has an expansion 5. The expansion 5 is so formed that the outer edge on the widening 5 on the inner edge of the metal sheet 2 can rest against the opening 3.
  • the pipe section 4 is on the opposite side of the metal sheet 2 with a Bead 6 provided for connection to another piece of pipe, not shown can be used.
  • the pipe section 4 also has a bulge 7, which are used to mark or attach another component can.
  • the pipe section 4 is first fitted into the opening 3 of the metal sheet 2. Subsequently the tube 4 is welded to the metal sheet 2, with the Junction forms a weld 8.
  • the metal sheet 2 As soon as the connection between tube 4 and sheet metal 2 is tight, the begins Forming the metal sheet into a tube. First, two are compared lying edges of the metal sheet 2 slightly into the pipe 4 opposite Bent direction ( Figures 3 A and 3 B). Then the metal sheet 2 V-shaped, a bending edge 10 being formed on the metal sheet, which is centered on the tube 4. By forming a bending edge 10 moves at the junction between pipe 4 and sheet metal 2 flat shape so that an elongated area 11 and a compressed area 12 are produced becomes. The stretching or compression is only minimal, so that also in this area, the wall thickness during forming is essentially the same remains.
  • the metal sheet is then bent further into a hollow profile, the previously opposite end edges 9 of the metal sheet facing each other be ( Figures 5 A and 5 B).
  • the end edges put together and welded together so that a vertical second tube 13 extending to the first tube 4 is formed (FIGS. 6A and 6 B).
  • the end edge 14 of the tube 13 formed can either be smooth ( Figure 6 A) or have a bead 130 which is for connection to another Pipe piece can be used (Figure 7 A).
  • the T-shaped pipe section 1 thus produced has essentially the same everywhere Wall thickness.
  • the deviations in the wall thickness are preferably less than 10 or 5%.
  • a metal sheet 20 is provided with an opening 21 in the T-shaped pipe section, which is surrounded by a protruding area 22.
  • the protruding area 22 is curved so that the end edge of the metal sheet 20th is directed upward in the region of the opening 21.
  • a pipe 23 is attached to the metal sheet 20 attached, the tube 23 has a taper 24, the Diameter is the same size as the diameter of the front edge of the expanded Area 22. Furthermore, the tube 23 is provided with a bead 25 which is used for connection can be used with another pipe.
  • the pipe 23 is first with the Welded metal sheet 20. Then the metal sheet 20 in several Forming steps, as shown in Figures 2a to 5b, into a tube reshaped.
  • the T-shaped tube piece 26 thus formed is in FIGS. 9A and 9 B shown.
  • the connection between the tube 24 and the originally flat trained metal sheet 20 is round by the expanded area 22, which the Flow losses reduced.
  • FIG. 9A shows two end pieces 27 on the T-shaped pipe piece 26 welded to provide a bead for connection to other pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP00127138A 2000-01-12 2000-12-12 Procödé de fabrication d'un raccordement de tuyau en forme de T Withdrawn EP1116528A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10000867 2000-01-12
DE2000100867 DE10000867A1 (de) 2000-01-12 2000-01-12 Verfahren zur Herstellung eines T-förmigen Rohrstückes

Publications (2)

Publication Number Publication Date
EP1116528A2 true EP1116528A2 (fr) 2001-07-18
EP1116528A3 EP1116528A3 (fr) 2002-02-06

Family

ID=7627207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127138A Withdrawn EP1116528A3 (fr) 2000-01-12 2000-12-12 Procödé de fabrication d'un raccordement de tuyau en forme de T

Country Status (2)

Country Link
EP (1) EP1116528A3 (fr)
DE (1) DE10000867A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397260A (en) * 2003-01-10 2004-07-21 Morry Hollensen Forming metal pipe and sheet
CN106180257A (zh) * 2016-07-07 2016-12-07 燕山大学 大型板制单焊缝三通成形工艺方法及成形装置
US9731773B2 (en) 2015-03-11 2017-08-15 Caterpillar Inc. Node for a space frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425645A (en) * 1944-05-18 1947-08-12 Tri Clover Machine Company Method of fabricating a t
FR1062963A (fr) * 1952-09-15 1954-04-28 Raccords de tubes
US2771665A (en) * 1952-04-28 1956-11-27 Welding Fittings Corp Fabrication of branched fittings
JPS57156834A (en) * 1981-03-24 1982-09-28 Riken Corp Formation of header pipe
JPH0833918A (ja) * 1994-07-19 1996-02-06 Sumitomo Light Metal Ind Ltd 分岐管付き金属管の製造方法および該金属管を利用した熱交換器用ヘッダー

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425645A (en) * 1944-05-18 1947-08-12 Tri Clover Machine Company Method of fabricating a t
US2771665A (en) * 1952-04-28 1956-11-27 Welding Fittings Corp Fabrication of branched fittings
FR1062963A (fr) * 1952-09-15 1954-04-28 Raccords de tubes
JPS57156834A (en) * 1981-03-24 1982-09-28 Riken Corp Formation of header pipe
JPH0833918A (ja) * 1994-07-19 1996-02-06 Sumitomo Light Metal Ind Ltd 分岐管付き金属管の製造方法および該金属管を利用した熱交換器用ヘッダー

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 263 (M-181), 22. Dezember 1982 (1982-12-22) -& JP 57 156834 A (RIKEN KK), 28. September 1982 (1982-09-28) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06, 28. Juni 1996 (1996-06-28) -& JP 08 033918 A (SUMITOMO LIGHT METAL IND LTD), 6. Februar 1996 (1996-02-06) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397260A (en) * 2003-01-10 2004-07-21 Morry Hollensen Forming metal pipe and sheet
GB2397260B (en) * 2003-01-10 2005-03-09 Morry Hollensen A method of forming metal
US9731773B2 (en) 2015-03-11 2017-08-15 Caterpillar Inc. Node for a space frame
CN106180257A (zh) * 2016-07-07 2016-12-07 燕山大学 大型板制单焊缝三通成形工艺方法及成形装置
CN106180257B (zh) * 2016-07-07 2019-02-05 燕山大学 大型板制单焊缝三通成形工艺方法及成形装置

Also Published As

Publication number Publication date
EP1116528A3 (fr) 2002-02-06
DE10000867A1 (de) 2001-07-19

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