CN1020687C - Composite structures and methods of producing same - Google Patents

Abstract

A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material and having a first joining surface in which a recess having an overhang surface is formed, to a second material preferably made of an electrically conductive material and having a second joining surface to be joined to the first joining surface of the first material. On the second joining surface is integrally formed a protrusion having an outer configuration substantially corresponding to the inner shape of the recess. The first and second materials are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method utilizing plastic flow of the second material.

Description

Composite structures and methods of producing same

The present invention relates to complex and manufacture method thereof with the compound formation of kinds of materials.An example of utilizing complex of the present invention is exactly the complex that is in secondary end flat board that the road inductive of the vehicle by the rail running formula linear electric motor of freely travelling under the very little setting height state in road surface uses etc.

As everyone knows, for example, the vehicles are very important, and wherein the vehicles such as railway are because transportation in a large number at a high speed, and therefore different with the automobile transportation, it occupies crucial status.

; if when information is transmitted high speed; reach desirable railway transportation high speed; then its vibration or noise are with very important; in addition; because factors such as the increase of the quantities of bringing along with the big section driving in the tunnel piercing of underground railway etc. and price risings, the linear electric motor vehicle of rail running formula is owing to have peace and quiet, friction and can dwindle many advantages such as section in tunnel etc. and favored day by day, and partly enters the practicability stage.

Yet, primary side for the linear electric motor vehicle of this rail running formula, the secondary end slab construction that makes it to produce current vortex and form driving force, its material must be that good conductibility and high permeability are arranged, and, when producing quite powerful driving force, also must bear shearing force or peeling force as its counter-force.As only using a kind of metal material, therefore then can't obtain having the metal material of this specific character, will adopt and to have the complex of different kinds material fluid-tight engagement of good conductive and high permeability each other as the flat board of secondary end in the technical merit of present stage.

For example, employing with mild steel 1. plate as metallic object with high permeability materials, will be compound with it as the aluminium sheet of the metallic object of another material with good conductive, utilize forcing press to make it moulding, machining is carried out at the two ends of this mild steel plate of clamping again, and counter-sunk screw is screwed into mild steel plate from aluminium sheet, and two dull and stereotyped bindings are one, perhaps, utilize the blast complex method that aluminium sheet is combined closely with it and form composite plate etc. for mild steel plate.

But, as mentioned above, in order to make the secondary end flat board have the supporting function of the counter-force of the powerful driving force that acts on repeatedly for high-frequency, must have can and the huge resistance that contends with of the shearing force of interface parallel direction, simultaneously, the peeling force for above-below direction also must have enough big resistance.

Aspect such as underground railway particularly, must bear because of dispelling the heat relatively poor or the fuel factor of mechanics vibration generation or additional peeling force, therefore, as described above, dull and stereotyped with two with after the forcing press moulding fluid-tight engagement, the structure that is combined with each other with screw-driving or blast all can not have permanent, enough big resistance.

In using the fastening structure of forcing press moulding and screw, the adhesion of machinery or the shortcoming of fastening force are that loosening in time and gradually tendency is arranged, and adopt the compound very costliness of manufacturing expense that has of exploding, the also non-remunerative problem of cost.

In addition, use the underground railway in tunnel, for example corrosion appears near meeting such as underground railway the seashore or harsh condition such as pour water makes environment significantly worsen, and can produce on the composition surface of mild steel plate and aluminium sheet and corrode, can not keep the function of secondary end flat board for a long time, this also is its bad place.

The objective of the invention is to solve the problem of the composite metal of the different kinds material that above-mentioned conventional art makes, particularly to provide a kind of under the fuel factor influence of powerful shear stress that acts on repeatedly or fierceness, dissimilar metals engages each other closely face and also can not produce the changing of the relative positions or peel off, can keep tightening state, and low cost of manufacture, the complex of the foreign material of any variation can take place in its function for a long time hardly.

The present invention also aims to obtain the various manufacture methods of above-mentioned foreign material complex.

To achieve the above object, in foreign material complex of the present invention, make the recess that there is the face of overhanging the inboard on the composition surface of first kind of material in different kinds material, and on the composition surface of second kind of material, make a side have downward raised face and with above-mentioned recess size, protuberance that shape is identical, each protuberance respectively and corresponding recess inner face combine closely.

The manufacture method of foreign material complex of the present invention is as follows: the first kind of material that is ready to have the composition surface, on the composition surface of this material, make the recess that inside has the face of overhanging, first kind of material put into casting mold, second kind of material of casting between the composition surface of first kind of material and casting mold inner face, when being packed into second kind of material in the above-mentioned recess, composition surface along first kind of material, according to fixed thickness second kind of material adhered to, first, second kind material that will become one then takes out from casting mold.

The another kind of manufacture method of foreign material complex of the present invention is as follows: the first kind of material that is ready to have the composition surface, on the composition surface of this first kind of material, make the recess that inside has the face of overhanging, on the other hand, preparation has second kind of material on composition surface, with the composition surface of first kind and second kind material toward each other, compress two materials mutually, utilize the method that plasticity flows that second kind of material entered in the recess of first kind of material, first, second kind material is become one.

Another manufacture method of foreign material complex of the present invention is as follows: the first kind of material that is ready to have the composition surface, making inside on the composition surface of this first kind of material has the recess of the face of overhanging, on the composition surface of first kind of material, adorning the flat board of two blocks of second kind of materials side by side, the end relatively of these flat boards is placed on the above-mentioned recess at certain intervals, the third material of built-up welding between the gap between end relatively of two flat boards and above-mentioned recess, it is filled up, then built-up welding is partly excised, become same plane to outer surface and get final product with two flat boards.

Another manufacture method of foreign material complex of the present invention is to utilize the engagement relationship of machinery, makes two fastening manufacture methods that become complex of kinds of materials fluid-tight engagement on the composition surface.Be ready on the composition surface, make first kind of material that inside has the circular hole recess of the face of overhanging, be ready to have the second kind of material through hole of falling the truncated cone shape and have the composition surface in the smaller diameter end of through hole again, with first kind and second kind of material coincidence, make its composition surface relative, and recess is consistent with through hole, in recess and through hole, insert steady pin, make steady pin produce plastic deformation, thereby will fill up fully in recess and the through hole.

Below in conjunction with the description of drawings embodiments of the invention.

Figure 1A is the profile of the preferential embodiment of foreign material complex of the present invention.

Figure 1B is the profile with the complex discrete representation of Figure 1A.

Fig. 2 is the profile of another embodiment of complex.

Fig. 3 to Fig. 7 is the profile of other different embodiment of complex.

Fig. 8 is the oblique view of another embodiment of complex.

Fig. 9 and Figure 10 represent oblique view recess shapes, that be respectively different embodiment of first kind of material of complex.

Figure 11 represents the plane of an example on first kind of material composition surface of complex.

Figure 12 is XII-XII direction view of Figure 11.

Figure 13 is X III-X III direction view of Figure 11.

Figure 14 is the oblique view of first kind of material of other complex of expression.

Figure 15 is the plane for an embodiment of the material that obtains Figure 14.

Figure 16 is X VI-X VI profile of Figure 15.

Figure 17 is X VII-X VII profile of Figure 15.

Figure 18 is illustrated in the state diagram that closely connects second kind of material on first kind of material of Figure 16.

Figure 19 is illustrated in the profile of making the state before the recess on the composition surface of first kind of material of complex.

Figure 20 is the profile that is illustrated in the state in the recess process that processes on first kind of material of complex of Figure 19.

Figure 21 is the following profile that continues the state of formation recess of state that is illustrated in Figure 20.

Figure 22 is the profile that is illustrated in the state in the recess process that processes other shape on first kind of material of complex.

Figure 23 is the following profile that continues the state of formation recess of state that is illustrated in Figure 22.

Figure 24 is the profile that is illustrated in the formation state of the recess of other form on first kind of material of complex.

Figure 25 is the plane of the recess made with the method for Figure 24 of expression.

Figure 26 is illustrated in the profile that forms the initial period of recess on first or the second kind of material of complex.

Figure 27 and Figure 28 are the profiles of representing two operations of joining with the stage of Figure 26 successively.

Figure 29 to Figure 31 expresses three operations that form other method of recess on first kind of material of complex successively.

Figure 32 A and Figure 32 B are the oblique view and the part sectioned views of first kind of material of the complex of other form.

The oblique view and the part sectioned view of Figure 33 A and Figure 33 B second kind of material that to be expression closely be connected with first kind of material shown in Figure 32 A and Figure 32 B.

Figure 34 to Figure 36 expresses the operation that connects first kind of material and second kind of material successively.

Figure 37 is the profile of recess of other form of first kind of material of expression complex.

Figure 38 is the plane that is illustrated in employed rotating tool in the recess forming process of Figure 37.

Figure 39 and Figure 40 express two operations with the rotating tool recesses machined of Figure 38 successively.

Figure 41 to Figure 43 expresses three operations of other method of recesses machined on first kind of material of complex successively.

Figure 44 to Figure 48 expresses successively with casting method first kind of material and second kind of operation that material is combined closely with complex.

Figure 49 to Figure 52 expresses the method that flows with plasticity first kind of material and second kind of operation that material is combined closely with complex successively.

Figure 53 to Figure 57 expresses the operation of the another kind of method of two kinds of materials of complex being combined closely with the plastic flow flowing mode successively.

Figure 58 to Figure 62 expresses the operation of the another method that two kinds of materials of complex are combined closely successively.

Figure 63 to Figure 65 expresses the operation of Change Example of the method for Figure 58 to Figure 62 successively.

Illustrated embodiment is the situation of the secondary end flat board of rail running formula linear electric motor vehicle, in the embodiment shown in Figure 1A, 111 expressions are as the secondary end flat board of foreign material complex of the present invention, as the mild steel plate 2 of the metallic object of first kind of material with high permeability and the aluminium sheet with good conductive 3 mechanical bond on composition surface 11 as the metallic object of at an upper portion thereof second kind of material.

Can find out from Figure 1B of the form of representing two flat boards 2,3 respectively, on plane 11a on the mild steel plate 2, make the lower end taper, the cross section is the ditch shape recess 7 of V font, these recesses 7 are processed to incline direction, make its a side inner surface 6 form the face that overhangs (in the drawings for along with the face that extends in horizontal direction upward).The incline direction of recess 7 and configuration thereof can be made various changes according to the difference of design condition.

On the other hand, on the lower plane 11b of aluminium sheet 3, make the lower end be tapered, the cross section is the protuberance 9 of V font, these protuberances 9 are outstanding with incline direction, make its side 8 form outstanding face (being the face that extends in horizontal direction along with downwards in the drawings) downwards.

The mutual alignment of above-mentioned recess 7 and protuberance 9 is corresponding, and shape, size are all consistent.In Figure 1B, flat board the 2, the 3rd is represented with released state, in fact, as hereinafter described, when making complex, protuberance 9 casts in the recess 7, or adopts and dull and stereotyped 3 dull and stereotyped relatively 2 usefulness rollers are added the ways that pressure handle protuberance 9 is pressed in the recess 7 make closely combining of machinery of two flat boards.Like this, complex 111 forms as one with great fastening force, much less vertically, even for horizontal shearing force enough big resistance is arranged also, simultaneously, also has resistance for the peeling force that fuel factor produced that is caused by variations in temperature etc.

In said structure, when among the figure not the linear electric motor vehicle of expression with given levitation height when on set secondary end flat board 111, travelling, can produce current vortexs by aluminium sheet 3, thereby produce driving force.Aluminium sheet 3 is in the huge counter-force effect of the driving force that vertically is subjected to this moment, yet because the firm mechanical bond of the downward raised face 8 of the face that overhangs 6 of recess 7 and protuberance 9, much less vertical, even also have enough big resistance for the shearing force on the vertical with it direction, in addition, the face 6 that overhangs also can resist with the firm mechanical bond of downward raised face 8 because the powerful peeling force of the above-below direction that fuel factors such as variations in temperature cause prevents that (floating) height change from surpassing the specified altitude of setpoint distance.Simultaneously, because mild steel plate 2 is combined closely with the composition surface 11 of aluminium sheet 3, even therefore moist wind or pour water etc. can not cause corrosion yet, just can not produce so between the two and peel off, can keep the intimate-association state stipulated fully, the vehicle of linear electric motor also can travel by design code.

Secondly, in the embodiment shown in Figure 2, on the composition surface of complex 112, the jut 10 of centre position to upper process all made in the inside of all recesses 7 of mild steel plate 2 one sides, the composition surface of recess 7 has been increased more, therefore can increase the power of opposing shearing force.When aluminium sheet 3 plastically was pressed into recess 7, this jut 10 made the flowability of plasticity improve, and had to improve the effect of filling.

In complex embodiment illustrated in fig. 3 113, the face that overhangs 6 of recess and the downward raised face of protuberance 8 form with P-P faces title, so protuberance 9 is outstanding to the direction that departs from the P-P face.This embodiment is very effective under situation about being installed on the straight-line travelling part etc., and low cost of manufacture.

In complex embodiment illustrated in fig. 4 114, the recess 7 of swallow-tail form and protuberance 9 be the mutual edge distance certain intervals mutually.As hereinafter described, this embodiment can freely design recess and protuberance with respect to the composition surface on longitudinal and transverse or incline direction, and manufacturing cost is also low.

In complex embodiment illustrated in fig. 5 115, on the downward ledge 8 of the overhang part 6 and the protuberance 9 of recess embodiment illustrated in fig. 17, on the whole surface on recess 7, protuberance 9 and composition surface, all make the pitch littler secondary recess of its pitch than this overhang 6 and downward protuberance 8, like this, mild steel plate 2 can be combined closely more firmly with aluminium sheet 3.In this embodiment, can obtain huge resistance to shearing force or peeling force.

In complex shown in Figure 6 116, for the composition surface of the mild steel plate 2 of the various embodiments described above and aluminium sheet 3 are the dissimilar metals patterns of directly combining closely mutually, should prevent owing to both different producing on the composition surface of causing of corrosion potential difference are corroded, for example, adopt the thinner thin layer 12 of middle insertion ratio insulant with improve between the two prevent to corrode function.In this embodiment, mild steel plate 2 and aluminium sheet 3 also can be closely fastening by thin layer 12, can fully guarantee the resistance to shearing force or peeling force.

In complex shown in Figure 7 117, below the insulating barrier 12 embodiment illustrated in fig. 6, to mild steel plate 2 coating one deck anticorrosive ground coats 12 ' make it between wherein installing.In this embodiment, can improve the anticorrosion function more.

In addition, in this embodiment, it is also fine that anticorrosive coating is coated on the aluminium sheet 3 effect, and the bonding agent that can also be coated with the anticorrosion function replaces anticorrosive coating.

About recess with the face of overhanging and configuration mode with protuberance of downward raised face, can be as shown in Figure 8, on vertical or horizontal with equidirectional configuration, also can be as shown in Figure 9, on same direction, be configured to zigzag, can also dispose obliquely as shown in Figure 10.

Only represented mild steel plate 2 at Figure 11 to complex 120(shown in Figure 13) in, on plane 11a on the mild steel plate, leave straight flute shape recess 7 abreast.The cross sectional shape of each recess 7 comes down to identical with the cross sectional shape of recess shown in Figure 27.On plane 11a on this piece mild steel plate, make the ditch 14 that intersects with recess 7, can make sulcus of chiasm 14 and recess 7 square crossings.In this embodiment, the aluminium sheet of not expressing among the figure 3 has and protuberance same, that include downward raised face (this face is along the face that overhangs 6 of chase 7) shown in Figure 2, also has the protuberance that fills up above-mentioned sulcus of chiasm 14 inside fully simultaneously.In this embodiment, for resistance, owing to the existence of sulcus of chiasm 14 is strengthened along vertical external force of recess 7.

In the mild steel plate 2 of complex shown in Figure 14 121, on the opening portion of its recess 7, make extension 16 at certain intervals in wave shapely.In order to make waveform extension 16, can resemble Figure 15 extremely as shown in Figure 17, both sides at ditch shape recess 7 are made punching 15 etc. at certain intervals, make along a part of material of recess 7 and above recess 7, producing plastic deformation near the punching 15, its result, on the opening portion of recess 7, formed extension 16 at certain intervals.Like this, imbed aluminium sheet 3(Figure 18 in the recess 7) protuberance 9 combine more firmly with mild steel plate 2.Utilize Fig. 9 to method shown in Figure 180, can obtain the geometric fingerprinting stress on all directions.

Certainly, performance of the present invention is not limited in the various embodiments described above, for example, with respect to face of overhanging and downward raised face, can also adopt various patterns such as several sections zigzag jogs are set on short transverse.

In addition, the also available other materials of mild steel plate and aluminium sheet replaces.

And, the applicable object of complex is not only the secondary end flat board of the linear electric motor vehicle of rail running formula, and require the complex of firmly tight fastening combination all can be suitable for for all, the for example contact line and the lathe of under the very big condition of violent slip or vibration, variations in temperature, working, and all applicable on other members.

Shearing force that complex of the present invention acts on repeatedly for high-frequency or peeling force also can stable for extended periods of time firm locking state, can very stably keep playing remarkable effect aspect the function of linear electric motor vehicle etc. according to design.

In addition, the composition surface of two flat boards, because raised face forms a kind of labyrinth sealing state for the effect of combining closely of the face of overhanging downwards, therefore, even be corrosive around under the ambient condition of gas, corrosive gas can not invaded the composition surface yet, like this, can play preventing to produce the effect of peeling off on the composition surface of a kind of material and another kind of material.

For on the composition surface of mild steel plate 2, processing V-arrangement ditch shape recess, can adopt the method for the following stated with the face of overhanging.

At first, on blank mild steel plate 2, process composition surface 11a as shown in figure 19, smooth, on institute's certain portions of this composition surface 11a, with two sides shown in Figure 20 smooth and circumferential surface have seamed edge, side surface by the moulding roller 20 of deciding taper with fixed pressure extrusion, and when the limit squish lip rotates, then as shown in Figure 20, on the 11a of the composition surface of mild steel plate 2; Form sharp-pointed bump 24 by a side, then form low ebb part 25, form small bump 26 at opposite side at downside.

And, utilizing roller with optimum shape, number of times according to the rules carries out this forming process repeatedly, just can make the low ebb part 25 that a side has the bump 24 of specified altitude.

Such as shown in figure 21, when the surface that columnar roller 27 is compressed low ebb part 25, and when rotating it on one side, the bump 24,26 of low ebb part 25 1 sides and opposite side will become smooth equally with the composition surface 11a of general place, form the V-arrangement cross section of inclination, just constituted so have the ditch shape recess 7 of the face of overhanging 6.

Therefore, the processing and forming that needn't carry out the difficulties such as machining of downward raised face can be made the face of overhanging 6.

Secondly, when as shown in Figure 2 recess 7 of processing, as shown in Figure 19, for composition surface 11a through processing smooth blank mild steel plate 2 in advance, on the 11a of composition surface, such as shown in figure 22, can be with the belt shape type roller 20a compressive engagement face 11a that V-arrangement cross section ditch is arranged on the periphery, and rotate it simultaneously, can process inside and have chevron bossing 28, both sides have the ditch of vertical sidewall and bump 29,29.By carrying out forming operation shown in Figure 22 repeatedly, just can make the paddy portion and the bump 29,29 of prescribed depth.Moreover; Such as shown in figure 23, by with periphery axially for the cylindrical shape moulding roller 27a of straight line is pressed on the bump 29,29 of both sides, and make it to rotate the number of times of regulation simultaneously, then bump 29; 29 are pressed into the inboard, and just can make that both sides have with chevron bossing 28 is the recess of the face that overhangs 6,6 of border, outward-dipping extension.

That is to say, recess on first kind of material composition surface was made by following each stage: promptly utilize the rotation of the moulding roller of the ditch that has the V-arrangement cross section on the periphery, the stage of the ditch that the central authorities of formation bottom surface exceed, flatten with the composition surface that utilizes cylindrical roller will contain formed ditch, be made at both sides have the face of overhanging, the cross section is the stage of the ditch shape recess of fork-shaped.

In the embodiment shown in Figure 24, on the periphery of belt wheel shape roller 20a shown in Figure 22, make a recess 30 every certain intervals, when this roller 20a rotates on the bottom surface of formed ditch shape recess 7, such as shown in figure 25, every certain intervals, constitute a jut 31.Therefore fill up the protuberance and the jut 31 of the aluminium sheet 3 of recess 7 inside and combine closely, so just increased for recess 7 resistance of external force longitudinally.If the recess 30 with on the bossing replacement roller 20a then will form a sunk part to replace jut 31 on recess 7.Resistance also can increase in this case.

When processing as shown in Figure 4 the swallow-tail form recess and during protuberance, such as shown in figure 26, processing the cross section on the 11a of the composition surface of mild steel plate 2 in advance is square ledge 40, then, such as shown in figure 27, utilize outer circumference surface to have the cross section on ledge 40, to push for the roller 41 of M shape ditch, clamp the both sides of ledge 40 with the medial surface of M shape ditch, and make it to rotate the number of times of regulation simultaneously, thus, ledge 40 just become end face and have the ledge 40 of the recess in M type cross section '.Once more, the both sides of such as shown in figure 28, when moulding roller 42 extruding ledges 40 that will have the cylindrical shape periphery ' and when rotating the number of times of regulation, ledge 40 ' just become smooth ledge of end face 40 "; at this ledge 40 " just constitute the face 43,43 that overhangs.Like this, do not need, just can make swallow-tail form cross section part according to design by machining.

The processing that also can use the same method of the downward raised face of the aluminium sheet 3 that combines with the face of overhanging of mild steel plate 2.

Figure 29 to Figure 31 is illustrated on the mild steel plate 2 processing and has another kind of method with the recess of recess shown in Figure 47 analogous shapes.When using this method, such as shown in figure 29, utilize 45 pairs of ditches of cylindrical roller to carry out plastic working, both sides at it form bump 46, secondly, such as shown in figure 30, in part corresponding to the ditch 7 that processes, the calendering roller 48 that employing has annular triangular section ditch 47 rolls mild steel plate 2.Like this, the bump 46 of ditch 7 both sides just as 46 ' shown in like that, to the inboard plastic deformation of ditch.At last, such as shown in figure 31, when utilizing cylinder roller 49 calendering mild steel plates 2, bump 46 ', so just process the ditch shape recess 7 that there is the face of overhanging 6 both sides again to the inboard distortion of ditch.

At Figure 32 A to the embodiment shown in Figure 39, the recess of on mild steel plate 2, making 7, it is not the ditch shape among the previous embodiment, but has the circle hole shape of the face of overhanging 6, shown in Figure 32 A and Figure 32 B.On aluminium sheet 3, shown in Figure 33 A and Figure 33 B, like that, also make back taper through hole 51.Recess 7 is consistent with the mutual alignment of through hole 51.These recesses 7 and through hole 51 are not necessarily non-to be that circle, rectangle or ellipse, other shapes are also passable.

Prepare mild steel plate 2 as described above and aluminium sheet 3, such as shown in figure 34, make recess 7 concentric with through hole 51, and two dull and stereotyped coincidences, secondly, such as shown in figure 35, forgeable soft material (for example steady pin of making of aluminium 52) is inserted in recess 7 and the through hole 51, along arrow F direction with its jumping-up.Like this, as among Figure 36 with 52 ' representing, soft material fills up recess 7 and hole 51, reaches the effect of steady pin, aluminium sheet 3 and mild steel plate 2 combine securely.

In example shown in Figure 37, the recess 7 of mild steel plate 2 is made of the stairstepping circular hole that the inside part diameter increases.This step portion just forms overhang 6.

When making such recess 7, such as shown in figure 38, employing cutting edge 54 can be at solid line position and towards the cutter 55 that circles round that moves freely between the imaginary line position that radial direction is outwards given prominence to.At first, such as shown in figure 39, cutting edge 54 is bored a hole on mild steel plate 2 with the state to the inboard retraction of radial direction, and is such as shown in figure 40 then, and cutting edge 54 is released towards the outside of radius aspect, carries out hole processing.Like this, can process as shown in Figure 37 ladder recess 7.Moreover, if, gradually cutting edge 54 is released to the outside of radial direction, then can process recess such shown in Figure 32 B 7 along with the carrying out of hole processing.

Figure 41 to Figure 43 is illustrated in the another kind of method that processes recess 7 in the mild steel plate 2.When making in this way, such as shown in figure 41, at first will there be the pressing plate 58 of circular hole 57 to be fixed on the mild steel plate 2, secondly such as shown in figure 42, in the position of the circular hole 57 of pressing plate 58, drift 60 is squeezed in the mild steel plate 2.Like this, around drift 60, and be in the scope of the circular hole 57 of pressing plate 58, the material of mild steel plate 2 forms bump 61.Then, such as shown in figure 43, take out drift 60, with dull and stereotyped 62 be pressed in down mild steel plate 2 above, then bump 61 is to the distortion of the inboard in hole, at the inside of the recess 7 formation face that overhangs.

Make to have and combine closely, can also adopt following method with the aluminium sheet 3 of the protuberance of downward raised face and the mild steel plate 2 that processes the ditch shape recess that has the face of overhanging with said method or cutting working method.

The situation of now just making the complex of shape shown in Figure 2 describes: at first, such as shown in figure 44, on mild steel plate 2 and by the situation difference, make after the recess 7 of being with the face 6 that overhangs in two side, in order to produce in a large number, such as shown in figure 45, for example can be by release liners such as gypsum 63, with a pair of mild steel plate 2,2 the back side is combined into one relatively, then, such as shown in figure 46, with the mild steel plate 2 that is made of one, 2 put into casting mold 65, the aluminium water 3 ' injection of the state of dissolving be will be in advance from the cast gate 67 of casting mold 65, aluminium water 3 ' be full of the composition surface outer surface of mild steel plate 2,2 and the cavity between the casting mold 65 made.

At this moment, utilize well-known conventional process, can make aluminium water 3 ' along all recesses 7,7 ... each face 6 that overhangs flow to each corner.

Like this,, after aluminium water 3 ' cooled and solidified, open casting mold 65 through official hour, such as shown in figure 47, just can obtain on the outer surface of mild steel plate 2,2, aluminium sheet 3 is at its whole recesses 7,7 ... in, along each closely square of embedding of face 6 that overhangs.Then,, cut off aluminium sheet 3, just obtain secondary end flat board shown in Figure 48 along release liner 63.

In addition, also can be between Figure 45 and operation shown in Figure 46 of the foregoing description, at mild steel plate 2, the corrosion-proof paint that coating is made up of the insulating materials that can prevent iron and aluminium galvano-cautery on 2 the composition surface 11, after forming the anticorrosive property film on the composition surface 11, putting into casting mold 65 again, be molded into aluminium water 3 '.

When pouring into a mould the another kind of material of fusion with respect to a kind of material in the casting mold, the sort of material that certainly will easily melt forms the state that dissolves.

Utilizing the described plasticity current method in back also can carry out mild steel plate 2 is connected with the tight of aluminium sheet 3.

In order to implement this method, such at first as shown in figure 49, the mild steel plate 2 of the recess 7 that has the face of overhanging 6 is made in preparation on the 11a of composition surface, such as shown in figure 50 simultaneously, prepares to have the plate shaped aluminium sheet 3 of composition surface 11b again.

Secondly, like that, with the composition surface 11a of two boards 2,3,11b is relative shown in Figure 51, and two plates are connected, and utilizes the press arrangement that does not illustrate among the figure or rolls roller etc., applies thrust equably according to the direction shown in the arrow F among Figure 51 comprehensively.Like this, plasticity flows and makes the material of the aluminium sheet 3 that yield point is low flow into recess 7,7 ... the position, when continuing pressurization, then shown in Figure 52 like that, the material of the composition surface 11b of aluminium sheet 3 will be along the face of overhanging 6,6 ... enter in the recess 7,7 of mild steel plate 2, even discharge thrust F, two flat boards 2,3 still can keep intimate-association state.

And, in the operation that applies thrust F,, make it to heat up by utilizing the composition surface 11b of heating such as thermatron aluminium sheet 3, more can guarantee the recess 7,7 that the plasticity by aluminium sheet 3 flows and causes to mild steel plate 2 ... interior inflow campaign.

When in the end being shaped, just can obtain desirable goods by finishing processing etc.

Embodiment shown in Figure 53 to Figure 57 represents the manufacture method of the complex 112 of shape shown in Figure 2.

When using this method, at first, shown in Figure 53 like that, prepare on the 11a of composition surface, to process the mild steel plate 2 of the recess 7 that has the face of overhanging 6 and shown in Figure 54 like that, on the 11b of composition surface, process the aluminium sheet 3 of the ledge 66 corresponding with recess 7.At this moment, on the top end face of ledge 66, process the ditch 67 that the cross section is a V-arrangement.The ledge 66 of this shape and the ledge 40 in interstage shown in Figure 27 ' identical.If can pushing the aluminium with desirable cross sectional shape, to obtain section bar also passable.Can determine like this from the overhang of the composition surface 11b projection of each ledge 66: slightly bigger the getting final product of volume of recess 7 that makes the volume ratio mild steel plate 2 of ledge 66.

Secondly, such shown in Figure 55, make recess 7 consistent with ledge 66 mutual alignments, mild steel plate 2 is relative with aluminium sheet 3, the top of ledge 66 is embedded in the recess 7, such shown in Figure 56 for another example, relative mild steel plate 2, utilize forcing press or calendering roller, on aluminium sheet 3, apply uniform thrust F comprehensively.Like this, same as the previously described embodiments, each ledge 66 of aluminium sheet 3 produces plasticity and flows, and flows in the recess 7 of mild steel plate 2 along the face of overhanging 6, and is such shown in Figure 57.

At this moment, by the caused chock effect in bottom protrusion inclined-plane owing to recess 7, make and more to truly have assurance ground to carry out by the mobile inflow that causes of the plasticity of the ledge 66 that carries out along the face 6 that respectively overhangs, and, as mentioned above, because the volume of the recess 7 of the volume ratio mild steel plate 2 of the ledge of counting from the composition surface 11b of aluminium sheet 3 66 is slightly bigger, therefore, the material of the aluminium sheet 3 that is caused by thrust F flows also can more truly have towards the plasticity in the recess 7 with guaranteeing and carries out, thereby more can guarantee the intimate-association state of both machineries.

Same as the previously described embodiments, in this case, when applying thrust F, by pressing to ledge 66,66 heating of fixed temperature to aluminium sheet 3, the yield stress of aluminium sheet 3 reduces, and more can guarantee the realization of flowing.In addition, shrink even material occurs when in applying the thrust process, cooling off, because the volume of the volume ratio recess 7 of ledge 66 is big slightly, therefore also can be material the flowing in recess 7 of realization aluminium sheet 3 after the contraction, accomplishing does not have the gap, obtains the more firm complex of combining closely.

In addition, in produced like this complex,, therefore can significantly improve for the shearing slip of in-plane or the resistance of peeling off (particularly shear and slide) of above-below direction because big with respect to the bonded area of the mild steel plate 2 of aluminium sheet 3.

Other methods of combining closely of making complex are described in conjunction with Figure 58 to Figure 62.

When using this method, like that, prepare mild steel plate 2 shown in Figure 58, it and the mounting bracket 70 that will install on the track sleeper of linear electric motor vehicle are beforehand with and are integral.This mild steel plate 2 processes a recess 7 with the face of overhanging 6 on the longitudinal direction of its composition surface 11a central authorities, processing the cross section in its two sides is the chase 71 of circular arc.

Secondly, shown in Figure 59 like that, will with recess cross sectional shape and measure-alike trapezoidal aluminium bar 72 in the recess 7 that vertically is pressed into mild steel plate 2.

Can also need not do like this, and it is interior as aluminium bar 72 that the aluminium water that dissolves is molded into recess 7, as a whole also passable with 2 one-tenth of mild steel plates.

Secondly, such shown in Figure 60, preparation is as the aluminium sheet 3 of second metallic object, 3, its cross section is the L type, on the one end, integrally make chase 71 with the side of mild steel plate 2, the teat 73 of 71 correspondences, other end 74 are made an inclined-plane, and aluminium sheet is heated to predetermined temperature, make it to expand, with each teat 73 of aluminium sheet closely and chase 71 combinations of mild steel plate 2, on the face of overhanging 6, make two terminal surfaces 74 keep certain intervals then, the placement of terminal surface 74 positions is appropriate, make the configuration relatively mutually of a pair of aluminium sheet 3,3.

Secondly, shown in Figure 61, like that, on the aluminium bar 72 the recess 7 of mild steel plate 2 in and the part of this aluminium bar 72 that is close to aluminium sheet 3,3, go out welding portion 75, mild steel plate 2, aluminium bar 72, aluminium sheet 3,3 four are combined as a whole with the aluminium built-up welding.

Then with its cooling, utilize aluminium sheet 3, the contraction that 3 cooling produces and the thermal contraction of built-up welding part 74, make aluminium sheet 3,3 in cross-direction shrinkage, its teat 73 just embeds in the chase 71 of mild steel plate 2 securely, therefore, mild steel plate 2 is whole intimate-association state with aluminium sheet 3,3 and tightens up, and can obtain the secondary end flat board as final products shown in Figure 62 by built-up welding part 75 being carried out machining.Secondary end flat board as product can keep the firm intimate-association state of aluminium sheet 3 on mild steel plate 2 for a long time, also can fully keep the shearing slip of in-plane or the resistance of peeling off of above-below direction.

Secondly, in the embodiment shown in Figure 63 to Figure 65, such shown in Figure 63, also be to process on the 11a of composition surface on recess 7 with the face of overhanging 6 and the mild steel plate 2 that is processing chase 71,71 on the two sides in advance relatively, utilize the aluminium sheet 3,3 of combining closely the pair of L type being installed of teat 73 and chase 71.At this moment, not as previous embodiment, in recess 7, do not insert aluminium bar.And make flange 76 outstanding in recess 7 at opposite one end of the teat 73 of each aluminium sheet 3.

Secondly, such shown in Figure 64 in the state of Figure 63, the aluminium water of in recess 7, casting and dissolving from the gap of 76 of two flanges, after the cavity between recess 7 and the flange 76 was full of, two flanges just melted knot together, again its were placed cooling.Because aluminium sheet 3,3 pre-heated effects produce thermal contraction in its cooling procedure, teat 73 just embeds in the corresponding chase 71, and mild steel plate 2 just forms the closely fastening state that is combined as a whole with aluminium sheet 3,3.In addition, in the recess 7 of mild steel plate 2, because the effect of the metallic solution 77 that has solidified, mild steel plate 2 forms the closely fastening state that is combined as a whole with aluminium sheet 3,3.For another example shown in Figure 65 like that, by machining is carried out at the compound position 77 of built-up welding, become equally with the surface of aluminium sheet 3,3, just as Figure 62, can obtain product complex as the combination shown in Figure 65.This species complex is the same with the complex shown in Figure 62, become the close-connected securely complex of aluminium sheet 3 and mild steel plate 2, can be fully, change ground chronically, and keep resistance for the peeling force of the shearing force of in-plane effect or above-below direction effect.

Above-described embodiments of the invention can carry out various changes.For example, described recess processing method goes for described various compound system making method.

Claims (5)

1, utilize the pass of mechanical bond to tie up to the manufacture method of the complex of combining closely on the composition surface a pair of kinds of materials, it is characterized in that: first kind of material of preparing to have faying face, on the composition surface of this material, make recess with the face of overhanging, first kind of material put into casting mold, second kind of material is molded between the composition surface and casting mold inner surface of first kind of material, second kind of material filled up in the above-mentioned recess, simultaneously, composition surface along first kind of material, thickness with regulation adheres to second kind of material, with be made of one first, second kind of material takes out from casting mold, constitutes complex like this.

2, the manufacture method of complex according to claim 1, it is characterized in that: the recess on first kind of material faying face is produced by following each stage: the edge that the rotation that promptly utilizes periphery to have the moulding roller of seamed edge is made at sidewall has the stage of the ditch of bump, flatten with the composition surface that utilizes cylindrical roller will contain formed ditch, and the stage of making the ditch shape recess with the face of overhanging.

3, the manufacture method of complex according to claim 1, it is characterized in that: the recess on first kind of material composition surface was made by following each stage: promptly utilize the rotation of the moulding roller of the ditch that has the V-arrangement cross section on the periphery, the stage of the ditch that the central authorities of formation bottom surface exceed, flatten with the composition surface that utilizes cylindrical roller will contain formed ditch, be made at both sides have the face of overhanging, the cross section is the stage of the ditch shape recess of fork-shaped.

4, according to the manufacture method of claim 2 or 3 described complexs, it is characterized in that: on moulding roller periphery, recess or lug boss are set at certain intervals.

5, the manufacture method of complex according to claim 1, it is characterized in that: the recess on first kind of material composition surface was made by following each stage: promptly utilize the rotation of moulding roller, be made at the stage of the ditch that bump is arranged on the both sides, has the stage that calendering roller with the peripheral groove of the triangular-section on a pair of inclined-plane (this inclined-plane makes the bump of both sides of formed ditch to central authorities' distortion of ditch) flattens the composition surface with utilization, and utilize the composition surface that cylindrical roller will contain ditch to flatten, form the stage of ditch shape recess with the face of overhanging in both sides.

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