WO2007128265A1 - Procédé de soudage par friction et pièce soudée par friction - Google Patents

Procédé de soudage par friction et pièce soudée par friction Download PDF

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Publication number
WO2007128265A1
WO2007128265A1 PCT/DE2007/000731 DE2007000731W WO2007128265A1 WO 2007128265 A1 WO2007128265 A1 WO 2007128265A1 DE 2007000731 W DE2007000731 W DE 2007000731W WO 2007128265 A1 WO2007128265 A1 WO 2007128265A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction
welded
welding
piston
friction welding
Prior art date
Application number
PCT/DE2007/000731
Other languages
German (de)
English (en)
Inventor
Ernst-Peter Schmitz
Peter Kolbe
Josef Dambacher
Original Assignee
Gesenkschmiede Schneider Gmbh
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 Gesenkschmiede Schneider Gmbh filed Critical Gesenkschmiede Schneider Gmbh
Publication of WO2007128265A1 publication Critical patent/WO2007128265A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/008—Filling of continuous seams for automotive applications
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/06—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for positioning the molten material, e.g. confining it to a desired area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part pistons
    • F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/003—Pistons

Definitions

  • the invention relates to a method of friction welding a first part to a second part and to a friction welded part made by the method according to the invention.
  • the object is achieved in that a joining surface to be welded of the first part to be welded with a joint surface of the second part for friction welding are arranged to each other so that they form a non-all-over contact surface and that the first and second part friction welded together to form a welded joint become.
  • the formation of a welding bead can be precisely controlled at least on one side of the parts to be joined.
  • At least one of the connecting surfaces to be welded of the first or second part is chamfered. Because the two joining surfaces to be welded do not lie precisely on one another, they form a small contact surface before the welding process, which advantageously increases to a maximum contact surface during the welding process. It can be chamfered both surfaces of the connecting parts. Preferably, however, a flat surface of one part is friction-welded together with a chamfered surface of another part.
  • the bevelled surface may be either straight, concave, convex or pointed. The shape of the chamfer depends on the setting of the welding process and on what is to be achieved for a welding bead.
  • the weld is chamfered to one side, a smaller to no weld bead is formed on the edge side, on which there is less material. There is more material on the edge where the bonding surfaces to be welded touch. It forms a correspondingly larger Sch spawulst whose size is not exactly predetermined.
  • the joint surface to be welded is on both sides d. H. beveled to two edges seen in cross-section, so is the contact surface in the middle and the size of the weld beads can be set defined on both sides.
  • the formation of the weld bead during friction welding is guided by a guide on at least one of the two parts to be joined.
  • the forming weld bead can be guided in a defined direction, so that a removal of the weld bead can take place at defined locations. This may be required for certain geometrical arrangements or installation space ratios of the friction-welded part.
  • the object is achieved by a friction-welded part, which is produced according to a method described above, in that the welding surface is chamfered on a first part and / or a second part before the friction welding.
  • the width of the weld bead can be produced to a defined extent toward the bevelled side. The greater part of the material exit occurs on the side on which a contact surface is formed before and during the welding process.
  • the welding surface is advantageously extended by a guide on at least one of two parts to be joined.
  • the umwelgende Sch spawulst at the weld is thus limited by the leadership in the training.
  • the guide is seen in cross-section triangular shape.
  • the triangular shape is integrally connected to the part to be connected.
  • the connected parts are joined together on at least one side by friction welding with no or a defined small Sch spawulst. It is thus achieved that a welding bead can be completely removed within a predetermined, defined width dimension.
  • the friction welded part is a part in which the weld bead disturbs or is to be removed, for example, a valve, a valve lifter, an injection pump piston, a piston for an internal combustion engine or a double wheel.
  • the material of the first and second part is identical.
  • the material of the first and the second part is different in the alloy.
  • the material alloys relate to both steel or aluminum alloys alone or a combination of steel and aluminum alloy.
  • the first part to be connected is a piston bottom and the second part to be connected is a piston shaft.
  • Fig. 1 shows a detail of a cross section of a part for production by the method according to the invention.
  • Fig. 2 shows a detail of a cross section of a friction welded part.
  • FIG. 3 is an enlarged detail of Fig. 3, and Fig. 4 shows the detail of FIG. 2 with a remote Sch Strukturwulst.
  • the first part 1 shows a section of a cross section of a first part 1 in a not yet friction welded together state with a second, not shown part 2.
  • the first part 1 has in this embodiment as a specific embodiment, a tapered welding surface 3 on the first part 1.
  • This chamfered welding surface 3 is placed by friction welding on a flat welding surface of the second part 2 when joined together with the second part 2, not shown. This results in that there is more material on the right-hand side of FIG. 1 than on the left-hand side of FIG. 1.
  • there is a wedge-shaped gap 4 before the friction welding there is a wedge-shaped gap 4 before the friction welding.
  • the contact surfaces to be welded of the first and second parts 1, 2 are thus not connected over the entire surface. A full-surface connection results only by the friction welding process.
  • the wedge-shaped gap 4 may be at an angle Y of about 1-15 °.
  • the first part 1 also has a special feature that on the one hand it has a trained as an approach guide 5, which limits the resulting weld bead 7 in training and leads him in a particular direction.
  • a weld bead 7 having a defined large width B is formed on the side with the large gap 4 and the guide 5.
  • the guide 5 is triangular in this particular embodiment.
  • the protruding angle Z to the outer edge surface of the first part 1 is approximately between 10 - 65 °.
  • FIG. 2 shows a special embodiment and particular application of the method according to the invention and the friction welded part according to the invention a section in cross section of a piston for an internal combustion engine.
  • the first part 1 is a so-called piston crown and the second part 2 is called a piston ring or piston skirt.
  • FIG. 2 shows a friction-welded piston after assembly of the first and second parts 1, 2 after friction welding. 2 shows that a welding bead 6 is formed in the interior of the piston in a conventional manner.
  • the Reibsch spawulst 7 at the top, first part 1, however, has been formed smaller with a defined width B during the friction welding. This is necessary in this particular application to be able to remove the welding bead 7 through an opening 8 with a cutting tool.
  • the removal of the weld bead 7 has proven to be advantageous in order to obtain the least possible disturbance volume in a cooling channel 9 filled with oil.
  • the removal of the weld bead 7 is used for quality control to determine whether the friction weld 10 is formed as expected or whether there is a break between the first and second part 1, 2, which significantly reduces the life of the friction welded part.
  • the opening 8 is later closed to function as a cooling channel, for example in an internal combustion engine by a method according to the prior art.
  • FIG. 3 shows an enlarged detail of FIG. 2.
  • FIG. 3 is intended to illustrate how, due to the method according to the invention, the width B of the welding bead 7 can be set in a defined manner and the width B is less than the height H of the opening 8
  • 4 shows schematically in cross-section the friction-welded part with the first part 1 as piston upper part or piston bottom and second part 2 as piston lower part or piston ring, which have been connected by the friction welding method according to the invention.
  • the welding beads 7 have been removed by a machining process.
  • the cooling channel 9 thus has no disturbance volume and the friction weld 10 is easily controlled by the gap 8 from the outside. Components that are incorrectly friction-welded can thus be found out quickly.
  • the material from which the first part 1 is made may, due to the requirements, be a very high-strength or resistant material, for example steel or aluminum.
  • the second part 2 may be made of a softer material or inferior material, for example, made of steel or aluminum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention concerne un procédé de soudage par friction d'une première pièce (1) avec une deuxième pièce (2). Une surface d'assemblage (3) à souder de la première pièce (1) est disposée, pour le soudage par friction, relativement à une surface d'assemblage (3) à souder de la deuxième pièce (1), de façon à ce qu'elles ne forment pas une surface de contact intégrale et que la première et la deuxième pièce (1,2) soient soudées par friction l'une contre l'autre en formant un assemblage par soudure.
PCT/DE2007/000731 2006-05-05 2007-04-24 Procédé de soudage par friction et pièce soudée par friction WO2007128265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006021044.1A DE102006021044B4 (de) 2006-05-05 2006-05-05 Reibschweißverfahren
DE102006021044.1 2006-05-05

Publications (1)

Publication Number Publication Date
WO2007128265A1 true WO2007128265A1 (fr) 2007-11-15

Family

ID=38461160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/000731 WO2007128265A1 (fr) 2006-05-05 2007-04-24 Procédé de soudage par friction et pièce soudée par friction

Country Status (2)

Country Link
DE (1) DE102006021044B4 (fr)
WO (1) WO2007128265A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012019595A2 (fr) 2010-08-10 2012-02-16 Mahle International Gmbh Piston pour un moteur à combustion interne et procédé de fabrication correspondant
JP2013538982A (ja) * 2010-10-05 2013-10-17 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング ピストンアセンブリ
US8631573B2 (en) 2010-08-10 2014-01-21 Mahle International Gmbh Piston for an internal combustion engine and method for its production

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8286852B2 (en) 2008-02-29 2012-10-16 Gesenkschmiede Schneider Gmbh Method of friction welding of a piston having a cooling duct
US11717911B1 (en) * 2020-10-22 2023-08-08 Paul Po Cheng Method of fusing metal objects together

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903887A (en) * 1988-12-21 1990-02-27 United Technologies Corporation Inertia weld improvements through the use of staggered wall geometry
DE29905633U1 (de) * 1999-03-31 2000-08-10 KUKA Schweissanlagen GmbH, 86165 Augsburg Bauteilvorbereitung für eine Reibschweißverbindung
EP1061249A2 (fr) * 1999-06-17 2000-12-20 Caterpillar Inc. Procédé et dispositif pour fabriquer un piston à deux pièces
DE10128737A1 (de) * 2001-06-13 2003-01-02 Federal Mogul Nuernberg Gmbh Kolben mit dispersionsgehärtetem Kolbenoberteil
DE102004019012A1 (de) * 2004-04-20 2005-11-17 Mahle Gmbh Kolben für einen Verbrennungsmotor

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JPS5586692A (en) * 1978-12-25 1980-06-30 Hitachi Ltd Friction welding method
JPS5662687A (en) * 1979-10-25 1981-05-28 Kawasaki Heavy Ind Ltd Frictional pressure welding method
DE3115790A1 (de) * 1981-04-18 1982-11-04 Ed. Züblin AG, 7000 Stuttgart Verfahren zur herstellung von fachwerkstaeben
JPS5952034B2 (ja) * 1981-10-08 1984-12-17 川崎重工業株式会社 二重管の摩擦圧接方法
JPS6330189A (ja) * 1986-07-24 1988-02-08 Kobe Steel Ltd Ａｌ基複合材料とＡｌ基複合材料及びＡｌ材料との接合方法
JPS6397381A (ja) * 1986-10-09 1988-04-28 Toyota Motor Corp 薄肉管体の摩擦圧接方法
JPH0647570A (ja) * 1992-07-13 1994-02-22 Mitsubishi Heavy Ind Ltd 異材の摩擦圧接法
JP2000288747A (ja) * 1999-04-09 2000-10-17 Hitachi Metals Ltd 摩擦圧接部材
JP3445579B2 (ja) * 2001-02-02 2003-09-08 自動車部品工業株式会社 異種金属中空部材間の接合構造及びその接合方法
JP2003019574A (ja) * 2001-07-06 2003-01-21 Hitachi Metals Ltd 管状部材
DE102004061778A1 (de) * 2004-09-29 2006-04-06 Ks Kolbenschmidt Gmbh Einfach-Reibschweißung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903887A (en) * 1988-12-21 1990-02-27 United Technologies Corporation Inertia weld improvements through the use of staggered wall geometry
DE29905633U1 (de) * 1999-03-31 2000-08-10 KUKA Schweissanlagen GmbH, 86165 Augsburg Bauteilvorbereitung für eine Reibschweißverbindung
EP1061249A2 (fr) * 1999-06-17 2000-12-20 Caterpillar Inc. Procédé et dispositif pour fabriquer un piston à deux pièces
DE10128737A1 (de) * 2001-06-13 2003-01-02 Federal Mogul Nuernberg Gmbh Kolben mit dispersionsgehärtetem Kolbenoberteil
DE102004019012A1 (de) * 2004-04-20 2005-11-17 Mahle Gmbh Kolben für einen Verbrennungsmotor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012019595A2 (fr) 2010-08-10 2012-02-16 Mahle International Gmbh Piston pour un moteur à combustion interne et procédé de fabrication correspondant
DE102011100521A1 (de) 2010-08-10 2012-02-16 Mahle International Gmbh Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
US8631573B2 (en) 2010-08-10 2014-01-21 Mahle International Gmbh Piston for an internal combustion engine and method for its production
DE102011100521B4 (de) * 2010-08-10 2015-01-15 Mahle International Gmbh Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor, sowie einen danach hergestellten Kolben
JP2013538982A (ja) * 2010-10-05 2013-10-17 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング ピストンアセンブリ

Also Published As

Publication number Publication date
DE102006021044B4 (de) 2014-11-06
DE102006021044A1 (de) 2007-11-08

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