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DE951470C - Process for flash welding of aluminum and aluminum alloys under protective gas - Google Patents

Process for flash welding of aluminum and aluminum alloys under protective gas

Info

Publication number
DE951470C
DE951470C DEA8009D DEA0008009D DE951470C DE 951470 C DE951470 C DE 951470C DE A8009 D DEA8009 D DE A8009D DE A0008009 D DEA0008009 D DE A0008009D DE 951470 C DE951470 C DE 951470C
Authority
DE
Germany
Prior art keywords
aluminum
protective gas
under protective
flash welding
aluminum alloys
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
Application number
DEA8009D
Other languages
German (de)
Inventor
Eberhard Rietsch
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA8009D priority Critical patent/DE951470C/en
Application granted granted Critical
Publication of DE951470C publication Critical patent/DE951470C/en
Expired 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • B23K11/18—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals
    • B23K11/185—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals of aluminium or aluminium alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Description

Verfahren zum Abbrennschweißen von Aluminium und Aluminium-Legierungen unter Schutzgas Für das Verschweißen von Aluminium und Aluminium-Legierungen hat man das bei Stahl allgem.e@in übliche elektrische Abbrennverfahren zwar angewendet, jedoch fielen die Schweißstellen qualitativ meist unregelmäßig aus. Beim Stumpf-Druck-Schweißen von Leichtmetallen hat man mitunter auch schon unter Schutzgas geschweißt; bei diesem Verfahren ist es jedoch unmöglich, große oder komplizierte Werkstücksquerschnitte zu schweißen.Process for flash welding aluminum and aluminum alloys Under inert gas For welding aluminum and aluminum alloys the electrical burn-off process that is usual for steel in general is used, however, the quality of the welds was mostly irregular. With butt-pressure welding light metals have sometimes been welded under protective gas; at this one However, it is impossible to process large or complicated workpiece cross-sections to weld.

Der Erfindung liegt nun die Aufgabe zugrunde, ein Verfahren. zu schaffen, das die Abbrennschweißung von Aluminilum und Aluminiumlegierungen für alle vorkommenden Werkstücksquerschnitte, insbesondere also auch für große und/ oder komplizierte, verwendbar macht. Nach der Erfindung besteht das Verfahren darin, daß die Schweißstelle in an sioh bekannter Weise von einer Schutzgashülle umgeben ist und daß beim Stauchen ein Druck ausgeübt wird, der größer als ein Sechstel der Zugfestigkeit des Ausgangswerkstoffes in kaltem Zustand ist.The invention is now based on the object of a method. to accomplish, the flash welding of aluminum and aluminum alloys for all occurring Workpiece cross-sections, in particular also for large and / or complex, makes usable. According to the invention, the method consists in that the weld is surrounded in a manner known per se by a protective gas envelope and that when upsetting a pressure is exerted which is greater than one sixth of the tensile strength of the starting material is in cold condition.

Die Anwendung des erfindungsgemäßen Verfahrens ergibt in überraschender Weise bezüglich Festigkeit, Gefügeaufbau und Reinheit des Werkstoffes einwandfreie Schweißverbindungen. Besonders überraschend .ist die Ausrichtung des hohen Stauchdrucks, der trotz der mitunter geringeren Werkstoffestigkeit der Leichtmetalle bedeutend höher liegt als vergleichsweise der bei Stahl ange@vandte. Bei einer Leichtmetallegierung mit einer Ausgangsfestigkeit von 3o kg/mm2 beträgt beispiels-,veise der Stauch.dru.ck erfindungsgemäß über 5 kg/mm2.The application of the method according to the invention results in surprising Manner in terms of strength, structure and purity of the material impeccable Welded joints. Particularly surprising .is the alignment the high compression pressure, which despite the sometimes lower material strength of the Light metals is significantly higher than that used in comparison with steel. In the case of a light metal alloy with an initial strength of 30 kg / mm2 for example, the compression pressure according to the invention is greater than 5 kg / mm 2.

Claims (1)

PATENTANSPRUCH: Verfahren zum elektrischen Wi;derstandsabbrenns.chweißen von Aluminium und Aluminium-Legierungen, dadurch gekennzeichnet, daß die Schweißstelle in bekannter Weise von ,einer Schutzgas@hülle umgeben ist und daß beim Stauchen ein Druck ausgeübt wird, der größer als ein Sechstel der Zugfestigkeit des Ausgangswerkstoffes im kalten Zustand ist. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. z 231 317; Zeitschrift »Aluminium«, 1936, Heft 2, S. 41 bis 48; »Zeitschrift für Metallkunde«, 1933, Heft 6, S. 142; Zeitschrift »Metal Industry«, London, 1939, 13. Jan., S. 71; New York, Febr. 1938, S. 68.PATENT CLAIM: Process for electrical Wi; derstandsabbrenns.chweißing aluminum and aluminum alloys, characterized in that the welding point is surrounded in a known manner by a protective gas envelope and that when upsetting a pressure is exerted which is greater than a sixth of the tensile strength of the starting material is in the cold state. References considered: U.S. Patent No. z 231,317; Journal "Aluminum", 1936, issue 2, pp. 41 to 48; "Zeitschrift für Metallkunde", 1933, issue 6, p. 142; Metal Industry magazine, London, 1939, Jan. 13, p. 71; New York, Feb. 1938, p. 68.
DEA8009D 1941-07-12 1941-07-12 Process for flash welding of aluminum and aluminum alloys under protective gas Expired DE951470C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA8009D DE951470C (en) 1941-07-12 1941-07-12 Process for flash welding of aluminum and aluminum alloys under protective gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA8009D DE951470C (en) 1941-07-12 1941-07-12 Process for flash welding of aluminum and aluminum alloys under protective gas

Publications (1)

Publication Number Publication Date
DE951470C true DE951470C (en) 1956-10-31

Family

ID=6921387

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA8009D Expired DE951470C (en) 1941-07-12 1941-07-12 Process for flash welding of aluminum and aluminum alloys under protective gas

Country Status (1)

Country Link
DE (1) DE951470C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231317A (en) * 1939-04-14 1941-02-11 Aluminum Co Of America Method of welding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231317A (en) * 1939-04-14 1941-02-11 Aluminum Co Of America Method of welding

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