EP1364724A1 - Verfahren zum Bilden eines Loches in eine Rohre durch Fliessbohren - Google Patents
Verfahren zum Bilden eines Loches in eine Rohre durch Fliessbohren Download PDFInfo
- 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
Links
Images
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)
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 - Lifetime 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)
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)
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 |
-
2002
- 2002-05-22 FR FR0206232A patent/FR2839908B1/fr not_active Expired - Fee Related
-
2003
- 2003-05-22 EP EP20030291211 patent/EP1364724B1/de not_active Expired - Lifetime
- 2003-05-22 ES ES03291211T patent/ES2371222T3/es not_active Expired - Lifetime
Patent Citations (7)
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)
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 |
---|---|
FR2839908B1 (fr) | 2004-11-12 |
FR2839908A1 (fr) | 2003-11-28 |
ES2371222T3 (es) | 2011-12-28 |
EP1364724B1 (de) | 2011-11-02 |
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