DE748126C - Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys - Google Patents

Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys

Info

Publication number
DE748126C
DE748126C DEB181272D DEB0181272D DE748126C DE 748126 C DE748126 C DE 748126C DE B181272 D DEB181272 D DE B181272D DE B0181272 D DEB0181272 D DE B0181272D DE 748126 C DE748126 C DE 748126C
Authority
DE
Germany
Prior art keywords
light
welding
electrical resistance
metal alloys
resistance welding
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
DEB181272D
Other languages
German (de)
Inventor
Dipl-Ing Fritz Heinric Hentzen
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 filed Critical
Priority to DEB181272D priority Critical patent/DE748126C/en
Application granted granted Critical
Publication of DE748126C publication Critical patent/DE748126C/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
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/12—Spot welding; Stitch welding making use of vibrations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Description

Verfahren zum elektrischen Widerstandsschweißen, insbesondere Punkt- und Nahtschweißen, von Leichtmetallen oder Leichtmetall-Legierungen Es ist bereits bekanntgeworden, Metalle und Metall-Legierungen, insbesondere .Stähle, mit Ultraschallschwingungen sehr hoher Frequenz zu behandeln; hierdurch sollen insbesondere die Härte- und Festigkeitseigenschaften von Stahl verbessert werden. Dieses Verfahren bezieht sich nicht wie die vorliegende Erfindung auf die Verbesserung von Schweißstellen, insbesondere nicht auf die Verbesserung von Schweißstellen an Leichtmetallen und Leichtmetallverbindungen, underfordert zudem sehr umständliche und teuere Einrichtungen.Process for electrical resistance welding, in particular spot welding and seam welding, of light metals or light metal alloys It is already become known, metals and metal alloys, especially steels, with ultrasonic vibrations very high frequency to treat; this should in particular increase the hardness and strength properties can be improved by steel. This procedure is not related like the present one Invention to the improvement of welds, especially not to the improvement of welds on light metals and light metal connections, and not required also very cumbersome and expensive facilities.

Gemäß der Erfindung. wird die elektrische `Viderstandsschweißung von Leichtmetallen oder Leichtmetall-Legierungen unter der Einwirkung von hörbaren Schallschwingungen, deren Frequenz vorzugsweise zwischen 500 und 2o ooo Hz liegt, vorgenommen. Es hat sich nämlich durch Versuche wider Erwarten gezeigt, daß schon verhältnismäßig niedere Frequenzen, d. h. also solche unterhalb 2o ooo Hz, zur Verbesserung ,des Gefüges von Schweißpunkten bzw. der Schweißnaht, also der Schweißstelle und .ihrer Umgebung, ausreichend sind und eine wesentliche Verbesserung der Schweißstellen miit sich bringen.According to the invention. the electrical resistance welding of light metals or light metal alloys is carried out under the influence of audible sound vibrations, the frequency of which is preferably between 500 and 20,000 Hz. In fact, contrary to expectations, tests have shown that even relatively low frequencies, i.e. those below 20,000 Hz, are sufficient to improve the structure of weld points or the weld seam, i.e. the weld point and its surroundings, and are a significant improvement of the welds.

Als besonders vorteilhaft hat sich das Verfahren gemäß der Erfindung bei der Punktschweißung von Leichtmetallen und Leicht--inetall-Legierungen erwiesen. Durch Versuche ist der technische Fortschritt belegt worden, der darin besteht, daß die Schweißzone und ihre Umgebung ein wesentlich :günstigeres. feinkörnigeres Gefüge erhalten. Das Gefüge der Schweißzone und ihrer Umgebung nähert sich durch die Behandlung gerüäß der Erfindung dem Ursprunxsfüge stark -oder wird ihm sogar wieder gleich.. # " Die ErfindungIat sich auch dort als fortschrittlich erwiesen, wo Leichtmetalle oder Leichtmetall-Legierungen verschiedenartiger Zusammensetzung oder verschiedenen Gefii;e-'-zustandes durch Schweißung mitein.an#@lt,e, verbunden werden.The method according to the invention has proven to be particularly advantageous proven in the spot welding of light metals and light metal alloys. The technical progress has been proven by tests, which consists in that the welding zone and its surroundings are much more favorable. finer grain Preserve the structure. The structure of the welding zone and its surroundings is getting closer According to the invention, the treatment of the original structure is strong - or even becomes stronger again soon .. # "The invention has also proven to be progressive there, where light metals or light metal alloys of different compositions or different vessel state connected to one another by welding will.

Claims (1)

PATENTANSPRUCH: Verfahren zurn elektrischen Widerstandsschweißen, insbesondere Punkt- und Nahtschweißen, von Leichtmetallen oder Leichtmetall-Legierungen, dadurch gekennzeichnet, daß das elektrische Widerstandsschweißen unter der Einwirkung von hörbaren Schallschwingungen, deren Frequenz vorzugsweise zwischen 500 und 2o ooo Hz liegt, vorgenommen wird.
deutsche Patentschriften . , . . Nr. 621 200, 621 0g; französische Patentschrift . - 8o6655; USA.-Patentschrift ...... Nr. 2 014 o82.Claim: Method zurn electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys, characterized in that the electrical resistance welding is carried out under the action of audible sound vibrations, the frequency of which is preferably between 500 and 20,000 Hz.
German patents. ,. . No. 621 200, 621 0g; French patent specification. - 8o6655; U.S. Patent ...... No. 2 014 o82.
DEB181272D 1937-08-28 1937-08-28 Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys Expired DE748126C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB181272D DE748126C (en) 1937-08-28 1937-08-28 Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB181272D DE748126C (en) 1937-08-28 1937-08-28 Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys

Publications (1)

Publication Number Publication Date
DE748126C true DE748126C (en) 1944-10-27

Family

ID=7009041

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB181272D Expired DE748126C (en) 1937-08-28 1937-08-28 Process for electrical resistance welding, in particular spot and seam welding, of light metals or light metal alloys

Country Status (1)

Country Link
DE (1) DE748126C (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014082A (en) * 1933-04-03 1935-09-10 North American Aviation Inc Spot welding process and apparatus
DE621209C (en) * 1933-01-22 1935-11-02 Vertriebs Ges Des Leipziger Le Device for generating extremely high, short-term bursts of energy
DE621200C (en) * 1929-08-08 1935-11-02 Procedes Mahoux Soc D Expl Des Process for the treatment of metals and metal alloys
FR806655A (en) * 1935-05-22 1936-12-22 Vertriebs Ges Des Leipziger Le Apparatus intended to produce pulses or bursts of energy of very high value and of short duration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE621200C (en) * 1929-08-08 1935-11-02 Procedes Mahoux Soc D Expl Des Process for the treatment of metals and metal alloys
DE621209C (en) * 1933-01-22 1935-11-02 Vertriebs Ges Des Leipziger Le Device for generating extremely high, short-term bursts of energy
US2014082A (en) * 1933-04-03 1935-09-10 North American Aviation Inc Spot welding process and apparatus
FR806655A (en) * 1935-05-22 1936-12-22 Vertriebs Ges Des Leipziger Le Apparatus intended to produce pulses or bursts of energy of very high value and of short duration

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