WO2009043537A1 - Renforcement d'une rainure annulaire d'un piston pour un moteur à combustion interne - Google Patents

Renforcement d'une rainure annulaire d'un piston pour un moteur à combustion interne Download PDF

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Publication number
WO2009043537A1
WO2009043537A1 PCT/EP2008/008171 EP2008008171W WO2009043537A1 WO 2009043537 A1 WO2009043537 A1 WO 2009043537A1 EP 2008008171 W EP2008008171 W EP 2008008171W WO 2009043537 A1 WO2009043537 A1 WO 2009043537A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
annular groove
internal combustion
combustion engine
heat source
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.)
Ceased
Application number
PCT/EP2008/008171
Other languages
German (de)
English (en)
Inventor
Gunter BÜRKLE
Christian Schaller
Thomas Steffens
Steffen Stork
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Priority to EP08802633A priority Critical patent/EP2190620A1/fr
Publication of WO2009043537A1 publication Critical patent/WO2009043537A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/02—Plasma welding
    • B23K10/027—Welding for purposes other than joining, e.g. build-up 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
    • B23K35/302—Cu as the principal constituent
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
    • B23K35/3053—Fe as the principal constituent
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B23K9/044—Built-up welding on three-dimensional surfaces
    • B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
    • B23K9/048—Built-up welding on three-dimensional surfaces on surfaces of revolution on cylindrical surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/08—Surface hardening with flames
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic materials other than metals or composite materials

Definitions

  • the invention relates to a method for reinforcing at least one annular groove of a piston for an internal combustion engine, wherein an inhomogeneous microstructure in the region of the introduced annular groove after the production of a piston blank is homogenized by a remelting and melted in this first processing step of the remelting alloy additives with the aid of a heat source and thus be added in the area to be reinforced, according to the features of the preamble of claim 1.
  • the invention is therefore based on the object to provide a method for Ringnutarmtechnik with which a homogeneous, very low-pore structure can be achieved.
  • This object is achieved according to the invention by homogenizing the structure, which is known to be inhomogeneous, after the production of a piston blank (eg by casting or forging) by a remelting process, as is known, for example, from EP 0 820 831 B1.
  • a remelting process as is known, for example, from EP 0 820 831 B1.
  • alloy additives in wire or powder form are produced with the aid of, for example, a plasma / wig arc or with the aid of a laser beam.
  • the already partially homogenized microstructure is again superficially remelted in a further processing step, but now without the addition of the abovementioned alloying additives, with the aid of a plasma / Wig arc or with the aid of a laser beam, so that this additional remelting process Sets the desired homogeneous structure in the region of the annular groove (or the plurality of annular grooves).
  • the invention relates to an improvement of a machining process with regard to increasing the wear resistance of annular grooves of piston alloys, preferably piston alloys of light metal materials, more preferably of aluminum-containing piston alloys.
  • the described local reinforcement of the ring field by means of melting alloying can take place both with and without seam preparation.
  • the piston alloy very similar welding filler AISi 12 omitted.
  • the gas pores which are primarily due to the high silicon content, can be advantageously minimized by using a silicon-free filler as the main alloying element.
  • this filler metal is alloyed with magnesium in order to achieve a further increase in hardness of the microstructure.
  • only low-alloyed iron-based welding consumables and welding consumables with a high manganese content based on copper are used as reinforcement additives.
  • the abovementioned welding consumables can also be adapted in a corresponding manner from the material, so that the abovementioned welding consumables are particularly advantageous in connection with aluminum-containing piston alloys, although the enumeration is not exhaustive and other welding consumables may also be considered ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne un procédé de renforcement d'au moins une rainure annulaire d'un piston pour un moteur à combustion interne, procédé selon lequel, après production d'une ébauche de piston, une structure non homogène est homogénéisée par un processus de refusion dans la zone de la rainure annulaire qui doit être introduite et, dans cette première étape de traitement par refusion, des additifs d'alliage sont amenés à fusion à l'aide d'une source de chaleur et sont ainsi ajoutés dans la zone à renforcer. L'invention est caractérisée en ce que la structure déjà partiellement homogénéisée est, dans une autre étape du traitement, de nouveau amenée à fusion en surface, à l'aide d'une source de chaleur, mais toutefois sans ajouter des additifs d'alliage.
PCT/EP2008/008171 2007-09-26 2008-09-25 Renforcement d'une rainure annulaire d'un piston pour un moteur à combustion interne Ceased WO2009043537A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08802633A EP2190620A1 (fr) 2007-09-26 2008-09-25 Renforcement d'une rainure annulaire d'un piston pour un moteur à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007046225 2007-09-26
DE102007046225.7 2007-09-26

Publications (1)

Publication Number Publication Date
WO2009043537A1 true WO2009043537A1 (fr) 2009-04-09

Family

ID=40184862

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/008171 Ceased WO2009043537A1 (fr) 2007-09-26 2008-09-25 Renforcement d'une rainure annulaire d'un piston pour un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP2190620A1 (fr)
DE (1) DE102008048978A1 (fr)
WO (1) WO2009043537A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019133522B4 (de) * 2019-12-09 2023-04-20 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor und Kolben für einen Verbrennungsmotor
DE102020210036B4 (de) 2020-08-07 2022-06-09 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor und Kolben für einen Verbrennungsmotor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360956A (en) * 1978-08-11 1982-11-30 Steigerwald Strahltechnik Gmbh Piston having at least one piston ring groove
EP0284118A2 (fr) * 1987-02-24 1988-09-28 Ae Plc Piston et segment
JPH0996246A (ja) * 1995-10-02 1997-04-08 Unisia Jecs Corp 内燃機関用ピストン及びその製造方法
US5653021A (en) * 1995-03-13 1997-08-05 Nissan Motor Co., Ltd. Production process of a piston
EP0820831A1 (fr) * 1996-07-26 1998-01-28 KS Kolbenschmidt GmbH Procédé pour former des surfaces résistantes à l'usure dans des rainures annulaires de pistons en matériau d'aluminium; piston pour moteurs à combustion
EP1386687A1 (fr) * 2002-07-30 2004-02-04 Federal-Mogul Nürnberg GmbH Piston et sa méthode de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360956A (en) * 1978-08-11 1982-11-30 Steigerwald Strahltechnik Gmbh Piston having at least one piston ring groove
EP0284118A2 (fr) * 1987-02-24 1988-09-28 Ae Plc Piston et segment
US5653021A (en) * 1995-03-13 1997-08-05 Nissan Motor Co., Ltd. Production process of a piston
JPH0996246A (ja) * 1995-10-02 1997-04-08 Unisia Jecs Corp 内燃機関用ピストン及びその製造方法
EP0820831A1 (fr) * 1996-07-26 1998-01-28 KS Kolbenschmidt GmbH Procédé pour former des surfaces résistantes à l'usure dans des rainures annulaires de pistons en matériau d'aluminium; piston pour moteurs à combustion
EP1386687A1 (fr) * 2002-07-30 2004-02-04 Federal-Mogul Nürnberg GmbH Piston et sa méthode de fabrication

Also Published As

Publication number Publication date
EP2190620A1 (fr) 2010-06-02
DE102008048978A1 (de) 2009-04-02

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