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DE852490C - Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure - Google Patents

Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure

Info

Publication number
DE852490C
DE852490C DEH10127A DEH0010127A DE852490C DE 852490 C DE852490 C DE 852490C DE H10127 A DEH10127 A DE H10127A DE H0010127 A DEH0010127 A DE H0010127A DE 852490 C DE852490 C DE 852490C
Authority
DE
Germany
Prior art keywords
metal
copper
under pressure
butt welding
different metals
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
DEH10127A
Other languages
German (de)
Inventor
Wilhelm Dr-Ing Habil Hofmann
Juergen Dipl-Ing Ruge
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.)
Individual
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 DEH10127A priority Critical patent/DE852490C/en
Application granted granted Critical
Publication of DE852490C publication Critical patent/DE852490C/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
    • B23K11/20—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of different metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Description

Verfahren und Form zur Herstellung einer Schweißverbindung zwischen verschiedenen Metallen, insbesondere Aluminium und Kupfer, durch Stumpfschweißen unter Druck Beim Stumpfschweißen zweier Metalle, insbesondere Aluminium und Kupfer, durch.Zusammenpressen tritt der Nachteil auf, daß die Oxydhäute, die die Trennschicht zwischen den zu vereinigenden Metallen bilden, nicht beseitigt werden. Die Folge davon ist eine ungenügende Verbindung der Metalle.Method and shape for producing a welded joint between various metals, especially aluminum and copper, by butt welding under pressure When butt welding two metals, especially aluminum and copper, The disadvantage arises that the oxide layers that form the separating layer between the metals to be united, not eliminated. The consequence one of these is an inadequate connection between the metals.

Zur Behebung dieses Nachteils wird gemäß der Erfindung das eine; gegebenenfalls angespitzte und von der Oxydliaut durch Abreiben, Abfeilen od. dgl. befreite Metall, im folgenden mit Keil bezeichnet, mit (lern höheren Schmelzpunkt im kalten Zustand in das andere durch Erhitzen zum Erweichen gebrachte Metall hineingedrückt. Hierbei dringt der Keil in jungfräuliches Material des anderen Metalls ein, so daß in diesem die Bildung einer Oxydhaut von vornherein ausgeschlossen wird. Um weiterhin eine Oxydation und vorzeitige Erweichung ödes gesäuberten Keiles während des Preßvorganges zu verhindern, ist letzterer rasch, am besten schlagartig einzuführen. Nach dem Eintreiben des Keiles wird dieser durch das andere Metall erwärmt, so daß je nach der Höhe der Temperatur des zum Erweichen gebrachten Metalls und der Art der Metallpaare eine Verschweißung durch Diffusion im festen Zustand oder durch Bildung einer flüssigen Zwischenschicht erfolgt. Es ist auch mit der Möglichkeit zu rechnen, daß bei Fehlen einer gegenseitigen Löslichkeit im festen Zustand die Verschweißung auf Grund von Ad- häsionskräften eintritt.To overcome this disadvantage, according to the invention, one; Any metal that has been sharpened and freed from the oxide by rubbing, filing or the like, hereinafter referred to as wedge, with a higher melting point in the cold state, is pressed into the other metal that has been softened by heating. The wedge penetrates the virgin material of the other metal, so that the formation of an oxide skin is excluded from the start. In order to prevent further oxidation and premature softening of the barren, cleaned wedge during the pressing process, the latter should be introduced quickly, preferably suddenly the other metal is heated so that, depending on the level of the temperature of the softened metal and the type of metal pairs, welding takes place by diffusion in the solid state or by the formation of a liquid intermediate layer a mutual solubility in the solid state the verse enters häsionskräften due to ad chweißung.

Das neue Arbeitsverfahren kann insbesondere für die Metallpaare Kupfer und Aluminium, Stahl und Aluminium, Stahl und Kupfer od. dgl. verwendet werden. Grundsätzlich ist auch die Verschweißung gleichartiger Metalle möglich, wobei man die zugespitzte Probe kalt läßt, die unbearbeitete und gegebenenfalls vorgebohrte Probe aper erwärmt.The new working method can be used in particular for the metal pairs copper and aluminum, steel and aluminum, steel and copper or the like can be used. In principle, the welding of metals of the same type is also possible, whereby one the pointed specimen leaves cold, the unprocessed and, if necessary, pre-drilled Sample aper warmed.

Für die Durchführung des neuen Arbeitsverfahrens verwendet man vorteilhaft eine ein,seitliches Ausweichen des erwärmten Metalls verhindernde Form, die zugleich zur Führung des !kalten Keiles dient.It is advantageous to use for the implementation of the new working method a form that prevents the heated metal from sideways evasion, which at the same time serves to guide the! cold wedge.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung einer Schw#eißverl>indung zwischen verschiedenen Metallen, insibesondere Alurmin.ium und Kupfer, durch Stumpfschweißen unter Druck, dadurch gekennzeichnet, daß das eine, gegebenenfalls angespitzte und von der Oxydhaut durch Abreiben, Abfeilen od. dgl. befreite Metall mit dem höheren Schmelzpunkt im kalten Zustand in das andere durch Erhitzen zum Erweichen gebrachte Metall hineingedrückt wird. PATENT CLAIMS: i. Process for the production of a weld connection between different metals, in particular aluminum and copper, by butt welding under pressure, characterized in that the one metal, optionally sharpened and freed from the oxide skin by rubbing, filing or the like, with the higher melting point in the cold state into which other metal softened by heating is pressed. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß man das Hineindrücken des kalten Metalls in das durch Erwärmung erweichte Metall so schnell vornimmt, daß eine Oxydation des kalten Metalls während des Preßvorgangs vermieden wird. 2. The method according to claim i, characterized in that that the cold metal is pressed into the metal which has been softened by heating occurs so quickly that the cold metal is oxidized during the pressing process is avoided. 3. Form zur Ausübung eines Verfahrens nach Anspruch i oder 2, dadurch gekennzeichnet, daß sie ein seitliches Ausweichen des erwärmten Metalls verhindert und für den kalten Keil als Führung dient.3. Form for performing a method according to claim i or 2, characterized characterized in that it prevents sideways evasion of the heated metal and serves as a guide for the cold wedge.
DEH10127A 1951-10-21 1951-10-21 Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure Expired DE852490C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH10127A DE852490C (en) 1951-10-21 1951-10-21 Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH10127A DE852490C (en) 1951-10-21 1951-10-21 Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure

Publications (1)

Publication Number Publication Date
DE852490C true DE852490C (en) 1952-10-16

Family

ID=7146264

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH10127A Expired DE852490C (en) 1951-10-21 1951-10-21 Method and mold for producing a welded connection between different metals, in particular aluminum and copper, by butt welding under pressure

Country Status (1)

Country Link
DE (1) DE852490C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE910240C (en) * 1951-04-17 1954-04-29 Habil Wilhelm Hofmann Dr Ing Method and device for producing welded joints between workpieces made of metals with different melting temperatures
DE1135732B (en) * 1960-04-02 1962-08-30 Bosch Gmbh Robert Method of connecting pipes
DE1215834B (en) * 1964-06-13 1966-05-05 Bosch Gmbh Robert Method for welding ignition tips made of high quality metal, in particular platinum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE910240C (en) * 1951-04-17 1954-04-29 Habil Wilhelm Hofmann Dr Ing Method and device for producing welded joints between workpieces made of metals with different melting temperatures
DE1135732B (en) * 1960-04-02 1962-08-30 Bosch Gmbh Robert Method of connecting pipes
DE1215834B (en) * 1964-06-13 1966-05-05 Bosch Gmbh Robert Method for welding ignition tips made of high quality metal, in particular platinum

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