EP1364724A1 - Verfahren zum Bilden eines Loches in eine Rohre durch Fliessbohren - Google Patents

Verfahren zum Bilden eines Loches in eine Rohre durch Fliessbohren Download PDF

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Publication number
EP1364724A1
EP1364724A1 EP03291211A EP03291211A EP1364724A1 EP 1364724 A1 EP1364724 A1 EP 1364724A1 EP 03291211 A EP03291211 A EP 03291211A EP 03291211 A EP03291211 A EP 03291211A EP 1364724 A1 EP1364724 A1 EP 1364724A1
Authority
EP
European Patent Office
Prior art keywords
tube
drilling
hole
washer
recess
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
EP03291211A
Other languages
English (en)
French (fr)
Other versions
EP1364724B1 (de
Inventor
Pierre Langillier
Patrick Markiewski
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP1364724A1 publication Critical patent/EP1364724A1/de
Application granted granted Critical
Publication of EP1364724B1 publication Critical patent/EP1364724B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/063—Friction heat forging
    • B21J5/066—Flow drilling
    • 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
    • B21C37/298—Forming collars by flow-drilling

Definitions

  • the invention relates to a method of making a hole on a tube by fluid drilling, in particular for the implantation of measurement probes on the exhaust systems of motor vehicles.
  • the flow drilling technique is a thermal process for drilling circular holes, the diameter of which is three to four times the thickness of the material in metal plates or metal tubes with relatively thin walls, using a tool tapered and polygonal metal carbide.
  • the thickness of repressed material intended to form the barrel and the collar of the hole depends not only on the thickness of the tube but also on its outside diameter.
  • the drilling is carried out by a drilling machine attacking the tube on a generator perpendicular to the axis of the tube.
  • the amount of material delivered may be irregular in places and weaken the cannon made to the point that it is not guaranteed to be able to practice a internal thread ensuring effective positioning of the sensor later on or at least it is not guaranteed that the resistance to the tightening torque of the sensor in the thread of the hole conforms to the desired value.
  • the invention aims to solve this difficulty.
  • the invention achieves its object by proposing a method of drilling a hole in a tube, characterized in that, prior to drilling, a flat stamped or embossing is made in the tube intended to form a small flat surface on which the hole will be made by flow drilling.
  • the removal is preferably carried out hot, and, from preferably again, using a water piercer.
  • the cylindrical tube 1 receives at the place where must be formed by fluoperimentation the hole 10 for fixing a measurement sensor, a recess 2 consisting of a circular flat surface 3 bordered by oblique walls 4 plus or less conical which connects it to the cylindrical surface of the tube 1.
  • the recess 2 is advantageously formed by the fluoperating tool 20 made of tungsten carbide, the head of which has a front face 21 provided with a centering tip 22 and surrounded by a conical surface 23 of angle A by example of 15 °.
  • the size of the front face 21 corresponds to that of the range 3 and the angle of the conical surface 23 corresponds to the slope of the walls oblique 4. Thanks to the rise in temperature resulting from the friction of the tool on the tube, it is possible by pushing the tool to deform the tube to obtain the necessary charge.
  • a washer 5 is placed, for example 2 mm thick, on circular area 3.
  • the washer can have a central hole 6.
  • the washer 5 is welded by friction and temperature rise at the flat wall 3 of the abutment; the matter of the flat wall 3 and the washer 5 gives rise by creep to the barrel 11 and to the flange 12 of the hole 10 which must then be tapped before the fixing the sensor.
  • the thickness of material in the barrel 11 and the flange 12 is substantially regular over the entire periphery of the hole.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP20030291211 2002-05-22 2003-05-22 Verfahren zum Bilden eines Loches in einem Rohr durch Fliessbohren Expired - Fee Related EP1364724B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206232 2002-05-22
FR0206232A FR2839908B1 (fr) 2002-05-22 2002-05-22 Procede de realisation de trou sur un tube par fluopercage, notamment pour l'implantation de sondes de mesure sur les dispositifs d'echappement

Publications (2)

Publication Number Publication Date
EP1364724A1 true EP1364724A1 (de) 2003-11-26
EP1364724B1 EP1364724B1 (de) 2011-11-02

Family

ID=29286612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030291211 Expired - Fee Related EP1364724B1 (de) 2002-05-22 2003-05-22 Verfahren zum Bilden eines Loches in einem Rohr durch Fliessbohren

Country Status (3)

Country Link
EP (1) EP1364724B1 (de)
ES (1) ES2371222T3 (de)
FR (1) FR2839908B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2034150A1 (de) 2007-09-06 2009-03-11 J. Eberspächer GmbH Co. KG Verfahren zum Anbringen einer Sonde an einer Abgasbehandlungseinrichtung
RU2542034C2 (ru) * 2013-05-30 2015-02-20 Федеральное государственное унитарное предприятие "Научно-производственный центр газотурбостроения "Салют" (ФГУП НПЦ газотурбостроения "Салют") Способ формовки патрубков в листовых деталях

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429171A (en) * 1965-10-21 1969-02-25 Joseph J Feher Radius spin drill
FR2030732A5 (en) * 1969-12-01 1970-11-13 Granger Maurice Shaping and/or cutting out bases and high - collars from flat or curved pieces of
US3939683A (en) * 1974-11-28 1976-02-24 Geffen Johannes Adrianus Van Piercing tools
US4132097A (en) * 1977-11-03 1979-01-02 Tridan Tool & Machine, Inc. Method for forming collared holes
US4454741A (en) * 1982-02-19 1984-06-19 Flowdrill B.V. Flow drill for the provision of holes in sheet material
DE4224131A1 (de) * 1992-07-22 1994-01-27 Stabilus Gmbh Verfahren zur Herstellung eines Anschlußstutzens
DE19745894A1 (de) * 1997-10-17 1999-04-22 Opel Adam Ag Befestigung für ein Airbag-Gehäuse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429171A (en) * 1965-10-21 1969-02-25 Joseph J Feher Radius spin drill
FR2030732A5 (en) * 1969-12-01 1970-11-13 Granger Maurice Shaping and/or cutting out bases and high - collars from flat or curved pieces of
US3939683A (en) * 1974-11-28 1976-02-24 Geffen Johannes Adrianus Van Piercing tools
US4132097A (en) * 1977-11-03 1979-01-02 Tridan Tool & Machine, Inc. Method for forming collared holes
US4454741A (en) * 1982-02-19 1984-06-19 Flowdrill B.V. Flow drill for the provision of holes in sheet material
DE4224131A1 (de) * 1992-07-22 1994-01-27 Stabilus Gmbh Verfahren zur Herstellung eines Anschlußstutzens
DE19745894A1 (de) * 1997-10-17 1999-04-22 Opel Adam Ag Befestigung für ein Airbag-Gehäuse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2034150A1 (de) 2007-09-06 2009-03-11 J. Eberspächer GmbH Co. KG Verfahren zum Anbringen einer Sonde an einer Abgasbehandlungseinrichtung
DE102007042281A1 (de) 2007-09-06 2009-03-12 J. Eberspächer GmbH & Co. KG Verfahren zum Anbringen einer Sonde an einer Abgasbehandlungseinrichtung
WO2010031450A1 (de) 2007-09-06 2010-03-25 J. Eberspächer GmbH & Co. KG Verfahren zum anbringen einer sonde an einer abgasbehandlungseinrichtung
RU2542034C2 (ru) * 2013-05-30 2015-02-20 Федеральное государственное унитарное предприятие "Научно-производственный центр газотурбостроения "Салют" (ФГУП НПЦ газотурбостроения "Салют") Способ формовки патрубков в листовых деталях

Also Published As

Publication number Publication date
FR2839908A1 (fr) 2003-11-28
FR2839908B1 (fr) 2004-11-12
ES2371222T3 (es) 2011-12-28
EP1364724B1 (de) 2011-11-02

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