CN1703296A - Method for joining two metal sheets respectively consisting of an aluminium material and an iron or titanium material by means of a braze welding joint - Google Patents

Method for joining two metal sheets respectively consisting of an aluminium material and an iron or titanium material by means of a braze welding joint Download PDF

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Publication number
CN1703296A
CN1703296A CNA2003801010481A CN200380101048A CN1703296A CN 1703296 A CN1703296 A CN 1703296A CN A2003801010481 A CNA2003801010481 A CN A2003801010481A CN 200380101048 A CN200380101048 A CN 200380101048A CN 1703296 A CN1703296 A CN 1703296A
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Prior art keywords
sheet material
iron
attachment weld
welding
blank
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Granted
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CNA2003801010481A
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Chinese (zh)
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CN100381243C (en
Inventor
C·施马兰泽
卡尔-海因茨·施泰尔恩伯格
A·莱特纳
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Voestalpine Stahl GmbH
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Voestalpine Stahl GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/005Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a refractory metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/19Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/20Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/32Bonding taking account of the properties of the material involved
    • B23K26/323Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/23Arc welding or cutting taking account of the properties of the materials to be welded
    • B23K9/232Arc welding or cutting taking account of the properties of the materials to be welded of different metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/34Coated articles, e.g. plated or painted; Surface treated articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/08Non-ferrous metals or alloys
    • B23K2103/10Aluminium or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/08Non-ferrous metals or alloys
    • B23K2103/14Titanium or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials
    • B23K2103/20Ferrous alloys and aluminium or alloys thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/50Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/002Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of light metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/28Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B23K35/286Al as the principal constituent

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Arc Welding In General (AREA)
  • Laser Beam Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention relates to a method for joining two metal sheets (1, 2) respectively consisting of an aluminium material and an iron or titanium material by means of a braze welding joint, using a filler metal, the iron or titanium material being provided with a coating preferably based on zinc or aluminium at least in the joining region, before the filler metal is applied for the creation of a seam (4) by fusion. In order to create advantageous joining conditions, the two metal sheets (1, 2) are joined in the form of a blunt joint, the filler metal based on aluminium for creating the seam (4) being applied to both sides of the metal sheets in a region bridging the joint on the metal sheet (1) consisting of iron or titanium material over a width (b) corresponding to at least three times the thickness (d) of said metal sheet (1).

Description

Connect the method that engages the sheet material that two one side are made by iron or titanium material on the other hand by aluminum by melting welding-soldering
Technical field
The present invention relates to a kind ofly connect the method that engages the sheet material that two one side are made by a kind of iron or titanium material on the other hand by a kind of aluminum using under a kind of situation of welding inserts by a kind of melting welding-soldering, wherein, before the welding inserts that is used to form an attachment weld applies under melting condition, iron or titanium material in engaging zones, be provided with at least a kind of preferred be the coating of base with zinc or aluminium.
Background technology
In the thermally coupled process of a kind of aluminum and a kind of steel material, aluminum is melted at engaging zones, makes the wetting steel material of aluminium of fusing and form the sealed connection of a kind of material after cooling.And having formed the intermetallic metallographic of fragility in the transitional region between material, this metallographic is the bearing capacity that connects of decision jointly fatefully.For the thickness that keeps this intermetallic metallographic limit is little, must correspondingly influence the diffusion conditions of the transitional region of each material, promptly by keeping high relatively heating and cooling speed to make fusing be limited in carrying out in the relatively short time interval.If sheet material to be connected is arranged with the interface of an overlap joint and is heated with a laser beam of dispersing from the steel material in the overlap joint zone of sheet material, just can realize above-mentioned condition over there.The connecting interface of overlap joint makes that after this points hardness of the joint sheet material of formation is higher.In addition, people also must be contemplated to owing to cause in the zone of overlap joint interface the higher tendency of being corroded being arranged in the electrochemistry potential energy difference between steel and the aluminum, even because add with aluminium is the welding inserts of base, can not look to the separator bar in complete closed overlap joint zone in the fusion process of aluminum.In the process that engages the sheet material of making by a kind of titanium material on the other hand by a kind of aluminum on the one hand, also can produce similar difficulty because such material in conjunction with the time a kind of intermetallic metallographic limit of fragility also can appear.
For the intermetallic metallographic of fragility takes place in the zone that prevents the attachment weld between a kind of steel material and a kind of aluminum basically, up-to-date being well known that (DE 10 017 453 A1) before the welding inserts that with zinc is base is applied between the aluminium under steel or the melting condition, at least the engaging zones of steel be provided with a kind of with zinc or aluminium be base coating in case under the melting condition between steel material and aluminum attachment weld of formation.This welding inserts enters into the metallurgical melting welding of fusing with aluminum and connects, and this welding inserts is used as a kind of scolder and is used for being connected with the steel material, this welding inserts will can not contact with the steel material with melting, but contact with coating individually, intermetallic like this metallographic just is suppressed basically, because selected welding inserts is base with zinc.But the shortcoming in this known joint method is, only can be arranged on by the attachment weld that forms of welding inserts in the wedge area between two surf zones that separate of each material to be joined, and needing described welding inserts is base with zinc, and zinc is to be different from aluminum fully.If having adopted is the welding inserts (US 3 202 793 A) of base with aluminium, so just may prevent this shortcoming, but the insufficient strength of this melting welding-soldering interface, even provide the iron plate that has the through hole of gaining in strength material at engaging zones, the welding inserts that the iron plate material is passed flow through described through hole is so that improve the connection power of this welding inserts, and situation still so.
Summary of the invention
Therefore the objective of the invention is to, a kind of method that is used to engage the sheet material that two one side are made by a kind of aluminum by a kind of iron or titanium material and on the other hand is provided, this method can realize a kind of all load connection that require, durable of satisfying between the sheet material of different materials, be the welding inserts of base and needn't adopt with aluminium.
The method of described type is set out from the outset, the present invention reaches this purpose in the following manner, promptly, the form of two sheet materials with a kind of mating interface engaged, wherein, be that the welding inserts of base equals described sheet metal thickness at least with one in the both sides of sheet material in the zone of a described interface of cross-over connection three times width is coated on the sheet material of being made by iron or titanium material with aluminium with what be used to form attachment weld.
Because the result of this measure is that to make with aluminium be that the welding inserts of base is connected across the interface between each sheet material in the both sides of each sheet material, cover the neighboring area of iron or titanium material in the both sides of sheet material by the formed attachment weld of described welding inserts, so not only strengthened the composition surface, but also mean a precondition, promptly in interface area, can there be crevice corrosion to take place.Because the electrochemistry potential energy difference between iron or titanium material coating and welding inserts reduces with comparing obviously with the electrochemistry potential energy difference between the aluminum at iron or titanium material, so the possibility of contact corrosion also reduces significantly.By in engaging zones in the coating of iron or titanium material, also reduced to form the possibility of the intermetallic metallographic of fragility.For this reason, with aluminium is that basic welding inserts can be merged so that gain in strength by known mode itself, particularly, make the supporting cross section obtain increasing, will cause high bearing capacity according to connection of the present invention like this by the attachment weld of the interface between the cross-over connection two boards material.
In order to guarantee a kind of intensity that satisfies all requirements by attachment weld, the attachment weld that is formed by the welding inserts must be rabbeted the edge of the sheet material of being made by iron or titanium material in both sides with a kind of corresponding area.If be coated in three times of thickness that the width of the welding inserts on the sheet material of being made by iron or titanium material equals described sheet material at least, the intensity level that just can be retained to the Weld-little zone is identical with the intensity level in the sheet material zone that joins.
Avoid too high peak stress in order between different materials, to reach gradual change ground bearing load, the sheet material of being made by iron and titanium material can advantageously be provided with an inclined-plane in interface area at least on a sheet material side, make iron or titanium material reduce, and the supporting cross section of aluminum correspondingly increase against aluminum supporting cross section over there.But it is the coating of base as the remainder of engaging zones with zinc, tin or aluminium that this inclined-plane need be capped last one, so that guarantee the material combination between iron or titanium material and welding inserts.Though caused projection in interface area by the attachment weld of the interface area between the cross-over connection sheet material that forms of welding inserts, the projection that should be formed by attachment weld in both sides does not play any conclusive effect in the moulding of the sheet material that docks joint subsequently.This attachment weld also can be flattened by a kind of plastic deformation in some cases.Also can engage the two boards material like this, the surface that is them is placed on the common plane in a side, and in welded seam area after the coating attachment weld, make its away from described common plane ground crooked described weld seam protuberance surpass the thickness separately of common surface.This measure causes having formed in a side surface of passing attachment weld continuously of the sheet material of a joint.
Because the attachment weld both sides cover the fringe region of iron or titanium material, so the possibility of any crevice corrosion is limited on the attachment weld longitudinal edge and the transitional region between its coating on the side of iron or titanium material.If coating material has a kind of limited performance that dissolves in aluminium, the starting point of attack piled up and form by coating material in the welding inserts that with aluminium is base in transitional region danger then may appear.In order to prevent the danger of this low degree in simple mode, the attachment weld that forms by the welding inserts between the two boards material can be at least on the sheet material side in the transitional region of the iron of coating or titanium material by a corrosion-resistant coating particularly an enamelled coating cover.
The one side that engages by weld seam of the present invention by a kind of iron or titanium material and the sheet material blank of making by a kind of aluminum on the other hand can in the attachment weld zone, carry out moulding and not need attachment weld is carried out excessive loads, so just can carry out simple production, because the sheet material blank engaged and is shaped to workpiece by cold forming jointly before cold forming to the workpiece that forms by these sheet material blanks.Prerequisite is that needed power can connect by melting welding-soldering to be transmitted, so that allow the sheet material blank that engages can plastify and therefore produce distortion.This will reach like this, that is, attachment weld is applied to the side of the sheet material blank of being made by iron or titanium material with a width, and this width equals three times of described sheet material blank thickness at least.This usefulness expense has seldom been guaranteed to remain in the scope of a permission for the critical normal stress value of the bearing capacity of attachment weld with regard to satiable condition, even be that in the welding inserts of base and the brazing area between the sheet material made by iron or titanium material the sheet material blank that engages to be carried out plastic deformation also be so with aluminium, this is because the cause of the corresponding increase of composition surface.
Though the attachment weld of the welding inserts material of interface area has caused a projection in interface area between the cross-over connection sheet material blank, this projection plays in the result of both sides as attachment weld in the moulding of the sheet material that can not engage in butt joint subsequently and plays any conclusive effect, because can the projection of this attachment weld can be taken into account by the corresponding depression of shaping jig.In order to reduce the projection of weld seam, before the sheet material blank that engages is carried out common cold forming, can carry out smooth to the attachment weld that between the two boards material, forms by the welding inserts.
Description of drawings
By accompanying drawing method of the present invention is described in more detail
The vertical view of the sheet material blank that two one side that engage with method of the present invention of Fig. 1 are made by a kind of aluminum on the other hand by a kind of steel material;
Fig. 2 is along the profile of the magnification ratio of the section that passes through the attachment weld between the sheet material blank of butt joint of the line II-II of Fig. 1;
View corresponding to Fig. 2 of Fig. 3 has the attachment weld that is flattened by a kind of plastic deformation;
The same view of a kind of constructive variation of an attachment weld that produces according to the present invention of Fig. 4 corresponding to Fig. 2;
Attachment weld of Fig. 5, but the situation after once adding moulding corresponding to Fig. 4; With
Fig. 6 is by the phantom view of the sheet material blank that engages by Fig. 1 by the magnification ratio of the workpiece that a kind of cold forming produced.
The specific embodiment
As Fig. 1 know see, in order to be manufactured on the workpiece shown in Fig. 6, for example a kind of special-shaped beam, it comprises the sheet material blank of being made by a kind of aluminum 2 of the sheet material blank of being made by a kind of iron material 1 of a cold forming and a same cold forming, will be from flat sheet material blank 1 and 2.Described sheet material blank 1 and 2 modes with mating interface engage.The sheet material blank of being made by iron material 1 is provided with the inclined-plane 3 of both sides in the zone at the edge that forms seam for this reason, as shown in Figure 2.The same with other area of engaging zones, it preferably is the coating of base with zinc that these inclined-planes 3 have a kind of.After sheet material blank 1 and 2 to be joined is got together, interface area with a kind of be that the welding inserts of base is coated on the both sides of blank 1 and 2 and by a kind of electric arc it is melted with aluminium, wherein, at the aluminum of sheet material blank 2 and what form attachment weld 4 is to produce a kind of metallurgical being welded to connect of melting between the welding inserts of base with aluminium.This being welded to connect by the unified hatching of sheet material blank 2 and attachment weld 4 of obtaining represented by the melting aluminum material, and wherein, the original edge of sheet material blank 2 is illustrated by the broken lines.The welding inserts of fusing is a kind of scolder that is used to be attached on the sheet material blank of being made by iron material 1, this scolder not only is applied to the direct interface area of two boards material blank 1 and 2, also the described interface of cross-over connection and cover the edge of the sheet material blank of being made by iron material 1 in both sides.The welding inserts that forms scolder is applied to an overlay area, and the width b of this overlay area is three times of thickness d at least.By such increase in conjunction with length, to determine the normal stress in the zone of brazing area of the bearing capacity of attachment weld to be limited in the acceptable amount on the one hand jointly, on the other hand, the loss of strength that is caused by corrosion that will be produced by quite long corrosion path remains on below the loss of strength that is caused by corrosion of more weak basic material of sheet material blank 1,2 of joint, makes engaging zones have on the whole life-span of workpiece to equal at least the intensity level than weak person's intensity level in the two boards material blank 1,2.
After producing attachment weld 4, articulate sheet material blank 1 and 2 can be provided with an etch-proof protective layer.For this reason, can flood japanning to the sheet material blank in a conventional manner, wherein, transitional region 5 between attachment weld 4 and the sheet material blank of being made by the steel material 1 that applied is preferably covered by an enamelled coating, make and in this transitional region, can not corrode generation, and the corrosion of transitional region is along with the time will directly propagate into interface area over there.
Owing in order to mate thickness that inherent strength selects to make the sheet material blank of being made by the aluminum thickness d greater than the sheet material blank of being made by the steel material 1, attachment weld 4 can cause the respective bump of a tie point between two boards material blank 1 and 2.For this projection of restriction under the condition that connection between two boards material blank 1 and 2 is not produced any harm, press Fig. 3, the attachment weld 4 that shape is originally represented by chain-dotted line can be able to smooth by a kind of plastic deformation, such shown in solid line.
According to the present invention, be not essential to the method for production attachment weld 4 of the present invention in the balanced configuration of the sheet material blank 1 shown in Fig. 2 and Fig. 3 and 2.Sheet material blank 1 and 2 surface for example can be placed on the common surface, as shown in Figure 4.Under the situation that does not change primary condition, this structure causes difform attachment weld 4.Because in the embodiment of Fig. 4, on that side surface concordant with sheet material blank 2 at sheet material blank 1 edge an inclined-plane being set does not have any meaning, and all only are provided with an inclined-plane 3 on an opposed side of sheet material blank.In this case, be recommended in and be provided with one on the sheet material blank of making by aluminum 2 and lead rib 6, so that guarantee to advantageously generate weld seam.In addition, welded seam area also can be out of shape by Fig. 5, makes to obtain a common surface of passing attachment weld 4 continuously on a sheet material side.When the sheet material blank in welded seam area away from common surface ground crooked described weld seam protuberance just can realize this point when surpassing separately the thickness of common surface, as shown in Figure 5.
After engaging by a kind of melting welding-soldering, sheet material blank 1 and 2 for example is shaped to workpiece shown in Figure 6 jointly by bending or pull and stretch.In these cold deformation methods, sheet material blank 1 and 2 the needed power of plastic deformation can be easy to by means of the attachment weld transmission.The projection that causes by attachment weld 4 can engage, at first for the plastic forming process of flat sheet material blank 1,2 in a kind of corresponding structure by mould for example take in by the depression in attachment weld 4 zones.Described projection can also be flattened by plastic deformation as shown in Figure 3.
It should be understood that the present invention is not limited to illustrated embodiment.Sheet material blank of being made by a kind of titanium material can be used for replacing the sheet material blank 1 made by iron material, as long as observe parameter of the present invention, the blank that this titanium material is made can be in a similar fashion by a kind of melting welding-soldering with etch-proof mode by a kind of be that the welding inserts of base is connected with a kind of aluminum with aluminium.

Claims (7)

1. one kind connects the method that engages the sheet material that two one side are made by a kind of iron or titanium material on the other hand by a kind of aluminum using under a kind of situation of welding inserts by a kind of melting welding-soldering, wherein, before the welding inserts that is used to form an attachment weld applies under melting condition, it is the coating of base with zinc or aluminium preferably that iron or titanium material are provided with a kind of at least in engaging zones, it is characterized in that: the form of two boards material with a kind of mating interface engaged, wherein, be that the welding inserts of base equals described sheet metal thickness at least with one in the both sides of sheet material in the zone of a described interface of cross-over connection three times width is coated on the sheet material of being made by iron or titanium material with aluminium with what be used to form attachment weld.
2. method according to claim 1 is characterized in that: before interface area was coated with application layer, the sheet material of being made by iron or titanium material was provided with an inclined-plane at least on a sheet material side.
3. method according to claim 1 and 2 is characterized in that: after coating welding inserts, carry out smooth by a kind of plastic deformation to the attachment weld that is formed by the welding inserts between the two boards material.
4. method according to claim 1 and 2, it is characterized in that: to be positioned at a described two boards material of the surface engagement on the common plane in a side, and in welded seam area after the coating attachment weld, make its away from described common plane ground crooked described weld seam protuberance surpass the thickness separately of common surface.
5. according to the described method of one of claim 1 to 4, it is characterized in that: between the two boards material by the attachment weld that forms of welding inserts at least on the sheet material side in the transitional region of the iron of coating or titanium material by a corrosion-resistant coating particularly an enamelled coating cover.
6. the method for the workpiece that constitutes by the cold forming sheet material blank that engages of a manufacturing, described sheet material blank is made by a kind of iron or titanium material on the other hand by a kind of aluminum on the one hand, it is characterized in that: before common cold forming, described sheet material blank is to engage by a kind of melting welding-soldering with the mating interface form under the welding inserts situation of base with aluminium using a kind of, described welding inserts is coated on the coating of iron or titanium material with a width of three times that equals described sheet material blank thickness at least under melting condition, is used for forming attachment weld in the both sides of the sheet material blank of being made by iron or titanium material.
7. method according to claim 6 is characterized in that: before to the common cold forming of sheet material blank that engages, carry out smooth to the attachment weld that is formed by the welding inserts between two boards material blank.
CNB2003801010481A 2002-10-07 2003-10-06 Method for joining two metal sheets respectively consisting of an aluminium material and an iron or titanium material by means of a braze welding joint Expired - Fee Related CN100381243C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0151402A AT413503B (en) 2002-10-07 2002-10-07 Joining two metal sheets comprises using a blunt joint with a filler material being applied to both sides of the sheets in a region bridging the joint on the metal sheet made from iron or titanium material
ATA1514/2002 2002-10-07
ATA773/2003 2003-05-19

Publications (2)

Publication Number Publication Date
CN1703296A true CN1703296A (en) 2005-11-30
CN100381243C CN100381243C (en) 2008-04-16

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Cited By (7)

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CN100464925C (en) * 2007-02-14 2009-03-04 哈尔滨工业大学 AC tungsten inert gases welding electric arc micro-melting brazing procedure for aluminium, titanium and diverse metal alloy thereof
CN101941119A (en) * 2010-09-10 2011-01-12 北京工业大学 Method for connecting aluminum alloy and steel by laser filler wire
CN102112263A (en) * 2008-07-07 2011-06-29 工程产品瑞士有限公司 Fusion welding process to join aluminium and titanium
CN102985209A (en) * 2010-07-13 2013-03-20 乔治洛德方法研究和开发液化空气有限公司 Method for arc-welding aluminum-coated metal parts using oxidizing gas
CN105033386A (en) * 2015-06-25 2015-11-11 航天材料及工艺研究所 Method for welding titanium or titanium alloy with 2219 aluminum alloy
CN105689564A (en) * 2014-12-11 2016-06-22 通用汽车环球科技运作有限责任公司 Metal sheet and method for its manufacture
CN113547197A (en) * 2021-08-02 2021-10-26 重庆大学 Ultrahigh-strength aluminum alloy plate based on automobile thermal forming and preparation process thereof

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464925C (en) * 2007-02-14 2009-03-04 哈尔滨工业大学 AC tungsten inert gases welding electric arc micro-melting brazing procedure for aluminium, titanium and diverse metal alloy thereof
CN102112263A (en) * 2008-07-07 2011-06-29 工程产品瑞士有限公司 Fusion welding process to join aluminium and titanium
CN102112263B (en) * 2008-07-07 2014-07-16 肯联铝业瑞士有限公司 Fusion welding process to join aluminium and titanium
CN102985209A (en) * 2010-07-13 2013-03-20 乔治洛德方法研究和开发液化空气有限公司 Method for arc-welding aluminum-coated metal parts using oxidizing gas
CN102985209B (en) * 2010-07-13 2016-03-16 乔治洛德方法研究和开发液化空气有限公司 Oxidizing gas arc-welding is used to aluminize the method for metal parts
CN101941119A (en) * 2010-09-10 2011-01-12 北京工业大学 Method for connecting aluminum alloy and steel by laser filler wire
CN101941119B (en) * 2010-09-10 2013-04-03 北京工业大学 Method for connecting aluminum alloy and steel by laser filler wire
CN105689564A (en) * 2014-12-11 2016-06-22 通用汽车环球科技运作有限责任公司 Metal sheet and method for its manufacture
CN105033386A (en) * 2015-06-25 2015-11-11 航天材料及工艺研究所 Method for welding titanium or titanium alloy with 2219 aluminum alloy
CN105033386B (en) * 2015-06-25 2017-04-19 航天材料及工艺研究所 Method for welding titanium or titanium alloy with 2219 aluminum alloy
CN113547197A (en) * 2021-08-02 2021-10-26 重庆大学 Ultrahigh-strength aluminum alloy plate based on automobile thermal forming and preparation process thereof
CN113547197B (en) * 2021-08-02 2023-09-05 重庆大学 Ultrahigh-strength aluminum alloy plate based on automobile thermoforming and preparation process thereof

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