MXPA97000389A - Welding material for welding by means of an electronic beam, welding procedure, soldied piece that is obtained from this form and its u - Google Patents

Welding material for welding by means of an electronic beam, welding procedure, soldied piece that is obtained from this form and its u

Info

Publication number
MXPA97000389A
MXPA97000389A MXPA/A/1997/000389A MX9700389A MXPA97000389A MX PA97000389 A MXPA97000389 A MX PA97000389A MX 9700389 A MX9700389 A MX 9700389A MX PA97000389 A MXPA97000389 A MX PA97000389A
Authority
MX
Mexico
Prior art keywords
welding
aluminum
magnesium
value
electron beam
Prior art date
Application number
MXPA/A/1997/000389A
Other languages
Spanish (es)
Other versions
MX9700389A (en
Inventor
Rimbaud Michel
Liodenot Frederic
Gonthier Maurin Pierre
Original Assignee
Gec Alsthom Transport Sa
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 Gec Alsthom Transport Sa filed Critical Gec Alsthom Transport Sa
Priority to MX9700389A priority Critical patent/MX9700389A/en
Priority claimed from MX9700389A external-priority patent/MX9700389A/en
Publication of MXPA97000389A publication Critical patent/MXPA97000389A/en
Publication of MX9700389A publication Critical patent/MX9700389A/en

Links

Abstract

The present invention concerns a material for welding, for welding by electron beam, where the material for welding is an aluminum-magnesium-silicon alloy material of type 6061 and has a ratio R, of mass content of Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio

Description

WELDING MATERIAL FOR WELDING BY A BEAM OF ELECTRONS, WELDING PROCEDURE, SOLDED PART QÜE IS OBTAINED FROM THIS FORM AND SOS USES.
DESCRIPTION OF THE INVENTION The present invention concerns welding. p? r means of an electron beam, of aluminum alloys, in general, and more particularly concerns a welding material for welding by means of an electron beam; to the welded parts, using a welding procedure by electron beam; to an electron beam welding process; as well as the use of the welding material, the welded piece and the welding procedure. M. Brillant and Y. de Bony indicate in the article "Le soudage par faisceaux d'électrons des alliages d'aluminum ", (Electron beam welding of aluminum alloys) published in Matériaux et Techniques, ISSN 0032-6895 August-September 1980, Volume 68, No. 8-9, pp. 318-330, that electron beam welding is a welding procedure, where the first data on this object are from 1956. The document mentioned above describes the applications of electron beam welding in aluminum alloys. RBF: 23813 It is now known that electron beam welding of aluminum alloys is accompanied by the formation of silicates, which are the origin of fissures during the cooling / solidification phase. These cracks are unacceptable due to the fact that they are incompatible with the fatigue requirements experienced by the welded structure. It is an object of the applicant to propose a solution to this main problem of electron beam welding of aluminum-magnesium-silicon alloys. According to the invention, the welding material for electron beam welding, which is a material of an aluminum-magnesium-silicon alloy of type 6061, is characterized in that the aluminum-magnesium-silicon alloy material has a relation R of content Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio. According to another characteristic of the invention, the piece welded by means of an electron beam soldering process, by means of the use of a welding material, in an aluminum-magnesium-silicon alloy material of the type 6061, where the piez soldered is characterized in that the material of the aluminum-magnesium-silicon alloy has a ratio R of Mg / Si mass content whose value is greater than or equal to the value of the stoichiometric ratio.
According to another characteristic of the invention, the electron beam welding process, by means of a welding material, in an aluminum-magnesium-silicon alloy material of the type 6061, is characterized in that the aluminum-alloy material magnesium-silicon has a ratio R of mass content Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio: a. The welding material, the weldment and the welding process of the invention also satisfy the characteristic according to which the value of the ratio R is greater than or equal to 1.75. According to another characteristic of the invention, the welding material, the welded part and the welding process find use in the railway domain. An example of use includes the realization of the chassis of the cart (bogie), especially for the tube / stringer assembly. An advantage of the welding material and of the welding process of the invention is that it allows the electron beam welding of the aluminum-magnesium-silicon alloy of type 6061, in all cases in consideration, in particular in the case of pieces of a large thickness, on a circular joint and with a coating that produces two successive mergers.
Other objects, characteristics and advantages of the invention will become apparent after reading the description of the welding material, of the welding part and of the welding procedure. The series of alloys 6000 is characterized by the formation of the compound defined Mg_Si which, placed in the joints of the grains, allows, after thermal treatment, to obtain the mechanical characteristics of the alloy. The quantities of the elements allowed by standard NF A 50-901 allow obtaining an alloy with presence of Mg_Si and an excess of silicon or an alloy with presence of Mg-Si and an excess of magnesium. In the case of an excess of silicon, there is formation, in the thermally affected area or in the molten zone, of silicate elements comprising the formation of fissures. Conversely, an excess of magnesium does not have negative consequences on the good state of the solder joint. The solution, in accordance with the present invention, consists in preventing the formation of the silicate and therefore consists in the fact that all the silicon elements are aided by magnesium to form the defined compound Mg2Si. This condition is achieved in the case of alloy of aluminum-magnesium-silicon of type 6061 if and only if the value of the ratio R of the contents in mass of Mg / Si is greater than the value of the stoichiometric ratio. The material for welding, for welding by electron beam, where the material for welding is an aluminum-magnesium-silicon alloy material of type 6061 and is such that the material of the aluminum-magnesium-silicon alloy has a relationship R of mass contents of Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio. The piece welded by means of an electron beam welding process, by means of a welding material, into an aluminum-magnesium-silicon alloy material, of the type 6061, is such that the material of the aluminum alloy- magnesium-silicon has an R ratio of Mg / Si mass contents whose value is greater than or equal to the value of the stoichiometric ratio. The method of welding by electron beam, by means of a material for welding, into an aluminum-magnesium-silicon alloy material of type 6061, is such that the material of the aluminum-magnesium-silicon alloy has a ratio of content in Mg / Si mass whose value is greater than or equal to the value of the stoichiometric ratio. The welding material, the welded part and the welding process of the invention satisfy also the characteristic according to which the value of the relation R is greater than or equal to 1.75. The material for welding, the welded piece and the welding procedure find a use in the railway domain. One use of this type comprises the realization of a bogie chassis, especially for the tube / stringer assembly. It is noted that, in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it refers. Having described the invention as above, the content of the following is claimed as property.

Claims (7)

1. A material for welding, for welding by electron beam, where the material for welding is an aluminum-magnesium-silicon alloy material of type 6061, characterized in that the material of aluminum-magnesium-silicon alloy has a ratio R of contents in mass of Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio.
2. A piece welded by means of an electron beam welding process, by means of a welding material, into an aluminum-magnesium-silicon alloy material of type 6061, where the welded part is characterized in that the material of the alloy Aluminum-magnesium-silicon has an R ratio of mass contents Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio.
3 »An electron beam welding process, by means of a welding material, in an aluminum-magnesium-silicon alloy material of type 6061, characterized in that the aluminum-magnesium-silicon alloy material has an R-ratio of mass contents Mg / Si whose value is greater than or equal to the value of the stoichiometric ratio.
4; The welding material, the welded piece or the welding process, according to claims 1 to 3, respectively, characterized in that the value of the ratio R is greater than or equal to 1.75.
5. The use of the welding material of the welded piece of the welding process, according to claims 1 to 4, respectively, because its use is in the railway domain.
6. The use, according to claim 5, characterized in that it is for the manufacture of a chassis d bogie.
7. The use, according to claim 6, characterized in that the use is for the tube / stringer assembly.
MX9700389A 1997-01-14 1997-01-14 Welding material to weld by an electron beam, welding process, welded piece which is thereby obtained, and its uses. MX9700389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MX9700389A MX9700389A (en) 1997-01-14 1997-01-14 Welding material to weld by an electron beam, welding process, welded piece which is thereby obtained, and its uses.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600534 1996-01-18
MX9700389A MX9700389A (en) 1997-01-14 1997-01-14 Welding material to weld by an electron beam, welding process, welded piece which is thereby obtained, and its uses.

Publications (2)

Publication Number Publication Date
MXPA97000389A true MXPA97000389A (en) 1998-01-01
MX9700389A MX9700389A (en) 1998-01-31

Family

ID=39165406

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9700389A MX9700389A (en) 1997-01-14 1997-01-14 Welding material to weld by an electron beam, welding process, welded piece which is thereby obtained, and its uses.

Country Status (1)

Country Link
MX (1) MX9700389A (en)

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