DE102004026474B4 - Process for non-vacuum electron beam welding of aluminum materials - Google Patents

Process for non-vacuum electron beam welding of aluminum materials Download PDF

Info

Publication number
DE102004026474B4
DE102004026474B4 DE102004026474.0A DE102004026474A DE102004026474B4 DE 102004026474 B4 DE102004026474 B4 DE 102004026474B4 DE 102004026474 A DE102004026474 A DE 102004026474A DE 102004026474 B4 DE102004026474 B4 DE 102004026474B4
Authority
DE
Germany
Prior art keywords
electron beam
aluminum materials
beam welding
vacuum electron
process gas
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.)
Expired - Lifetime
Application number
DE102004026474.0A
Other languages
German (de)
Other versions
DE102004026474A1 (en
Inventor
Dr. Hildebrandt Bernd
Achim Wankum
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.)
HILDEBRANDT, BERND, DR., 47918 TOENISVORST, DE
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE102004026474.0A priority Critical patent/DE102004026474B4/en
Priority to EP04766382A priority patent/EP1651378B8/en
Priority to AT04766382T priority patent/ATE536954T1/en
Priority to PCT/EP2004/051674 priority patent/WO2005011907A2/en
Publication of DE102004026474A1 publication Critical patent/DE102004026474A1/en
Application granted granted Critical
Publication of DE102004026474B4 publication Critical patent/DE102004026474B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/10—Non-vacuum electron beam-welding or cutting
    • 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
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0093—Welding characterised by the properties of the materials to be welded
    • 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
    • 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
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
  • Laser Beam Processing (AREA)

Abstract

Verfahren zum Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen unter Verwendung eines Prozessgases, welches zur Reduzierung einer Strahlaufweitung beim Eintritt des Elektronenstrahls in eine Atmosphäre eingesetzt wird, dadurch gekennzeichnet,dass zusätzlich zum Prozessgas ein Schutzgas zum Schutz des Schweißbereiches des zu schweißenden Werkstücks vor atmosphärischen Störeinflüssen eingesetzt wird,wobei das Schutzgas Argon und 10 bis 90 Vol.-% Helium und 0,02 bis 25 Vol.-% Sauerstoff enthält.Method for non-vacuum electron beam welding of aluminum materials using a process gas which is used to reduce beam expansion when the electron beam enters an atmosphere, characterized in that, in addition to the process gas, a protective gas is used to protect the welding area of the workpiece to be welded from atmospheric interference is, the protective gas containing argon and 10 to 90 vol .-% helium and 0.02 to 25 vol .-% oxygen.

Description

Die Erfindung betrifft ein Verfahren zum Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen unter Verwendung eines Prozessgases, welches zur Reduzierung einer Strahlaufweitung beim Eintritt des Elektronenstrahls in eine Atmosphäre eingesetzt wird.The invention relates to a method for non-vacuum electron beam welding of aluminum materials using a process gas which is used to reduce beam expansion when the electron beam enters an atmosphere.

Beim bekannten Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen wird als Prozessgas Helium eingesetzt.In the well-known non-vacuum electron beam welding of aluminum materials, helium is used as the process gas.

Das beim Non-Vakuum-Elektronenstrahlschweißen hauptsächlich zur Reduzierung der Strahlaufweitung beim Eintritt in die Atmosphäre eingesetzte Prozessgas hat aber nur eine unzureichende Schutzwirkung gegenüber auf den Schmelzbereich einwirkenden atmosphärischen Störeinflüssen, da das Prozessgas überwiegend zur Aufrechterhaltung des Vakuums in der Elektronenstrahlröhre Verwendung findet.The process gas, which is mainly used in non-vacuum electron beam welding to reduce the beam expansion when it enters the atmosphere, however, only has an inadequate protective effect against atmospheric disturbances acting on the melting area, since the process gas is mainly used to maintain the vacuum in the cathode ray tube.

Zudem treten beim Einsatz von nur in begrenzter Menge zur Verfügung stehendem und somit relativ teurem Helium fertigungstechnische Nachteile in Form von starker Kerbbildung am Schweißnahtrand und wellenförmigen Unregelmäßigkeiten entlang der Schweißnaht auf.In addition, when using helium, which is only available in limited quantities and is therefore relatively expensive, disadvantages in terms of manufacturing technology occur in the form of strong notch formation on the edge of the weld seam and undulating irregularities along the weld seam.

Aus der JP S57- 65 661 A ist ein Verfahren zum Non-Vakuum-Elektronenstrahlschweißen eines metallischen Werkstücks bekannt, bei dem ein nicht näher spezifiziertes, inertes Prozessgas zusätzlich als Schutzgas zum Inertisieren einer zu schweißenden Werkstückoberfläche eingesetzt wird.A method for non-vacuum electron beam welding of a metallic workpiece is known from JP S57-65 661 A, in which an unspecified, inert process gas is additionally used as a protective gas to inert a workpiece surface to be welded.

Aus der US 3 585 348 A ist ein Verfahren zum Non-Vakuum-Elektronenstrahlschweißen bekannt, bei dem ein Elektronenstrahl vor Erreichen der zu behandelnden Werkstückoberfläche eine Reihe von Vakuumstufen durchläuft. Um das Eindringen von schädlichen Bestandteilen der Umgebungsluft in die Vakuumstufen zu verhindern, durchläuft der aus den Vakuumstufen entweichende Elektronenstrahl eine Kammer, die mit einem Inertgas gefüllt ist. Dabei handelt es sich aber nicht um ein Prozessgas im Sinne der vorliegenden Erfindung, welches gezielt die Form des Elektronenstrahl beeinflussen soll.From the U.S. 3,585,348 A a method for non-vacuum electron beam welding is known in which an electron beam passes through a series of vacuum stages before it reaches the workpiece surface to be treated. In order to prevent the penetration of harmful components of the ambient air into the vacuum stages, the electron beam escaping from the vacuum stages passes through a chamber which is filled with an inert gas. However, this is not a process gas in the sense of the present invention, which is intended to specifically influence the shape of the electron beam.

Aus der WO 98/ 29 267 A2 geht hervor, Helium als Schutzgas zum Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen einzusetzen. Helium ist jedoch vergleichsweise teuer und führt zu den erwähnten fertigungstechnischen Nachteilen.From WO 98/29 267 A2 it emerges to use helium as a protective gas for non-vacuum electron beam welding of aluminum materials. However, helium is comparatively expensive and leads to the aforementioned manufacturing disadvantages.

Aus der US 5 595 670 A ist ein für das Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen geeignetes Schutzgas bekannt, das aus Helium, Argon oder einem Gemisch davon besteht. Diese Druckschrift beschreibt jedoch kein Verfahren zum Non-Vakuum-Elektronenstrahlschweißen unter Einsatz eines Prozessgases.From the U.S. 5,595,670 A a protective gas suitable for non-vacuum electron beam welding of aluminum materials is known, which consists of helium, argon or a mixture thereof. However, this document does not describe a method for non-vacuum electron beam welding using a process gas.

Aus der DE 101 24 345 A1 und der DE 197 30 311 A1 sind Schutzgase bekannt, die neben Argon und/oder Helium einen Sauerstoffanteil enthalten. Allerdings geben diese Druckschriften keine Anregung, derartige Schutzgase für das Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen einzusetzen.From the DE 101 24 345 A1 and the DE 197 30 311 A1 protective gases are known that contain argon and / or helium as well as oxygen. However, these publications do not give any suggestion to use protective gases of this type for the non-vacuum electron beam welding of aluminum materials.

Der Erfindung liegt somit die Aufgabe zugrunde, ein Non-Vakuum-Elektronenstrahlschweißen für Aluminiumwerkstoffe zur Verfügung zu stellen, mit welchem eine kostengünstige und zudem qualitätsgerechte Werkstoffbearbeitung möglicht ist.The invention is therefore based on the object of providing non-vacuum electron beam welding for aluminum materials, with which a cost-effective and also high-quality material processing is possible.

Die Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen von Anspruch 1 gelöst.The object is achieved according to the invention by a method having the features of claim 1.

Beim erfindungsgemäßen Verfahren enthält das zusätzlich zum Prozessgas eingesetzte Schutzgas Argon und 10 bis 90 Vol.-% Helium und 0,02 bis 25 Vol.-% Sauerstoff.In the method according to the invention, the protective gas used in addition to the process gas contains argon and 10 to 90% by volume of helium and 0.02 to 25% by volume of oxygen.

Das Schutzgas wird beim erfindungsgemäßen Verfahren bevorzugt zeitgleich mit dem Prozessgas eingesetzt, kann aber auch in von der Zuführung des Prozessgases unabhängiger Zeitfolge während des Schweißprozesses eingesetzt werden.In the method according to the invention, the protective gas is preferably used simultaneously with the process gas, but it can also be used during the welding process in a time sequence that is independent of the supply of the process gas.

Die Auswahl des Schutzgases hinsichtlich seiner jeweiligen Zusammensetzung, Einsatzmenge und Einsatzzeit erfolgt in Abhängigkeit von den jeweiligen Verfahrensbedingungen und unter Berücksichtigung der zu schweißenden Werkstückabmessungen.The selection of the protective gas with regard to its respective composition, usage amount and usage time is made depending on the respective process conditions and taking into account the workpiece dimensions to be welded.

Besonders vorteilhaft wird aber ein Argon-Schutzgas mit 10 - 90 Vol.-% Helium und 0,01 bis 75 Vol.-% Stickstoff und 0,02 - 25 Vol.-% Sauerstoff, eingesetzt.However, it is particularly advantageous to use an argon protective gas with 10-90% by volume of helium and 0.01 to 75% by volume of nitrogen and 0.02-25% by volume of oxygen.

Der erfindungsgemäße Schutzgaseinsatz beim Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen verhindert atmosphärische Störeinflüsse im Schweißbereich des zu schweißenden Werkstücks und somit eine die Schweißqualität des zu schweißenden Werkstücks vermindernde Oxidation der Schweißnahtoberfläche und Einbrandkerben.The use of protective gas according to the invention in non-vacuum electron beam welding of aluminum materials prevents atmospheric interference in the welding area of the workpiece to be welded and thus an oxidation of the weld seam surface and undercuts that reduce the welding quality of the workpiece to be welded.

Ein weiterer wesentlicher Vorteil der Erfindung besteht darin, dass das äußere Schweißnahtbild hinsichtlich der Nahtgeometrie und die Schweißnahtqualität durch Verringerung des Porenanteils, wesentlich verbessert werden.Another essential advantage of the invention is that the outer weld seam pattern with regard to the seam geometry and the weld seam quality are significantly improved by reducing the proportion of pores.

Claims (2)

Verfahren zum Non-Vakuum-Elektronenstrahlschweißen von Aluminiumwerkstoffen unter Verwendung eines Prozessgases, welches zur Reduzierung einer Strahlaufweitung beim Eintritt des Elektronenstrahls in eine Atmosphäre eingesetzt wird, dadurch gekennzeichnet, dass zusätzlich zum Prozessgas ein Schutzgas zum Schutz des Schweißbereiches des zu schweißenden Werkstücks vor atmosphärischen Störeinflüssen eingesetzt wird, wobei das Schutzgas Argon und 10 bis 90 Vol.-% Helium und 0,02 bis 25 Vol.-% Sauerstoff enthält.Method for non-vacuum electron beam welding of aluminum materials using a process gas which is used to reduce beam expansion when the electron beam enters an atmosphere, characterized in that, in addition to the process gas, a protective gas is used to protect the welding area of the workpiece to be welded from atmospheric interference is, the protective gas containing argon and 10 to 90 vol .-% helium and 0.02 to 25 vol .-% oxygen. Verfahren nach Anspruch 1, gekennzeichnet durch einen Stickstoffanteil im Schutzgas 0,01 bis 75 Vol.-%.Procedure according to Claim 1 , characterized by a nitrogen content in the protective gas of 0.01 to 75% by volume.
DE102004026474.0A 2003-08-04 2004-05-29 Process for non-vacuum electron beam welding of aluminum materials Expired - Lifetime DE102004026474B4 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE102004026474.0A DE102004026474B4 (en) 2003-08-04 2004-05-29 Process for non-vacuum electron beam welding of aluminum materials
EP04766382A EP1651378B8 (en) 2003-08-04 2004-07-30 Method for non-vacuum electron beam welding metallic materials
AT04766382T ATE536954T1 (en) 2003-08-04 2004-07-30 METHOD FOR NON-VACUUM ELECTRON BEAM WELDING OF METAL MATERIALS
PCT/EP2004/051674 WO2005011907A2 (en) 2003-08-04 2004-07-30 Method and device for non-vacuum electron beam welding metallic materials

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10336136.7 2003-08-04
DE10336136 2003-08-04
DE102004026474.0A DE102004026474B4 (en) 2003-08-04 2004-05-29 Process for non-vacuum electron beam welding of aluminum materials

Publications (2)

Publication Number Publication Date
DE102004026474A1 DE102004026474A1 (en) 2005-03-10
DE102004026474B4 true DE102004026474B4 (en) 2021-04-15

Family

ID=34177338

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102004026474.0A Expired - Lifetime DE102004026474B4 (en) 2003-08-04 2004-05-29 Process for non-vacuum electron beam welding of aluminum materials

Country Status (2)

Country Link
CN (1) CN1845810A (en)
DE (1) DE102004026474B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103537825A (en) * 2013-11-04 2014-01-29 力诺瑞特（上海）新能源有限公司 Copper pipe welding protective gas of medium-temperature heat collector and application
CN104227252A (en) * 2014-09-10 2014-12-24 北京工业大学 Device and method for co-axial and composite welding by adopting center negative pressure plasma arc and electron beam
CN109500478A (en) * 2018-11-07 2019-03-22 天津大学 A kind of welding method that oxidizing gas is applied to tradition TIG
CN114985891B (en) * 2022-06-24 2024-06-25 双环传动（嘉兴）精密制造有限公司 Be used for tooth axle welding dust keeper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585348A (en) * 1961-10-03 1971-06-15 Heraeus Gmbh W C Method and apparatus for welding metallic and nonmetallic materials by an electron beam under normal pressure
JPS5765661A (en) * 1980-10-09 1982-04-21 Toshiba Corp Electron beam welder
US5595670A (en) * 1995-04-17 1997-01-21 The Twentyfirst Century Corporation Method of high speed high power welding
WO1998029267A2 (en) * 1996-12-27 1998-07-09 Hayes Wheels International, Inc. Vehicle wheel and method for producing same
DE19730311A1 (en) * 1997-07-15 1999-01-21 Messer Griesheim Gmbh Laser welding shielding gas mixture
DE10124345A1 (en) * 2001-05-18 2002-11-21 Linde Ag Laser welding comprises using a protective gas containing molecular gases as well as argon and/or helium or molecular gases mixed with the protective gases

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585348A (en) * 1961-10-03 1971-06-15 Heraeus Gmbh W C Method and apparatus for welding metallic and nonmetallic materials by an electron beam under normal pressure
JPS5765661A (en) * 1980-10-09 1982-04-21 Toshiba Corp Electron beam welder
US5595670A (en) * 1995-04-17 1997-01-21 The Twentyfirst Century Corporation Method of high speed high power welding
WO1998029267A2 (en) * 1996-12-27 1998-07-09 Hayes Wheels International, Inc. Vehicle wheel and method for producing same
DE19730311A1 (en) * 1997-07-15 1999-01-21 Messer Griesheim Gmbh Laser welding shielding gas mixture
DE10124345A1 (en) * 2001-05-18 2002-11-21 Linde Ag Laser welding comprises using a protective gas containing molecular gases as well as argon and/or helium or molecular gases mixed with the protective gases

Also Published As

Publication number Publication date
DE102004026474A1 (en) 2005-03-10
CN1845810A (en) 2006-10-11

Similar Documents

Publication Publication Date Title
DE602005001248T2 (en) Method for reducing the oxygen content of a powder and the product made therefrom.
EP1769882B1 (en) Flux-cored wire for gas shielded arc welding
DE2364893C3 (en) Core electrode for automatic or semi-automatic arc welding of steel
DE4105656A1 (en) WIRE WITH A FLUID CORE FOR WELDING STAINLESS STEEL
DE3108160A1 (en) "METHOD FOR PRODUCING PROTECTIVE OXIDE LAYERS"
DE19645746A1 (en) Process and process gas for laser welding of metallic workpieces
DE1902604B2 (en) WORKPIECE MADE OF NIOB OR A NIOB ALLOY WITH PROTECTIVE COVER AND PROCESS FOR ITS MANUFACTURING
CH647265A5 (en) METHOD FOR PRODUCING PROTECTIVE OXIDE LAYERS.
DE3215314A1 (en) METHOD FOR PRODUCING PROTECTIVE OXIDE LAYERS
DE1242986B (en) Additional alloy for use in welding and steel manufacture
DE4327672A1 (en) Shielding-gas arc welding method and appertaining shielding gas
DE102004026474B4 (en) Process for non-vacuum electron beam welding of aluminum materials
DE2126634A1 (en) Tubular, self-protecting compound arc welding electrode
DE19848954A1 (en) Argon-based TIG welding shielding gas contains hydrogen and helium
EP3988240A1 (en) Flux-cored wire and welding method
DE19650258A1 (en) Locally modifying material properties
EP1339525A1 (en) Process gas and method for laser welding
DE1903325B2 (en) PROTECTIVE GAS WELDING OF METALS USING LA BLASTING
WO2002047859A2 (en) Shielding gas and arc-welding method
EP3189931B1 (en) Method for welding austenitic materials
DE102005018876A1 (en) Welding high-strength steels
DE2343476A1 (en) METHOD OF WELDING WITH A LASER BEAM
EP2929977B1 (en) Method for co2 laser welding of low alloy steels
DE1215835B (en) Process for inert gas arc welding of work pieces made of unalloyed bulk steel
WO2021228455A1 (en) Method for additive manufacturing under protective gas using a laser beam

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: HILDEBRANDT, BERND, DR., 47918 TOENISVORST, DE

R016 Response to examination communication
R016 Response to examination communication
R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final
R071 Expiry of right