CN117087262B - Easily welded fiber metal laminated plate and processing method thereof - Google Patents
Easily welded fiber metal laminated plate and processing method thereof Download PDFInfo
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- CN117087262B CN117087262B CN202311335338.8A CN202311335338A CN117087262B CN 117087262 B CN117087262 B CN 117087262B CN 202311335338 A CN202311335338 A CN 202311335338A CN 117087262 B CN117087262 B CN 117087262B
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- 239000002184 metal Substances 0.000 title claims abstract description 211
- 239000000835 fiber Substances 0.000 title claims abstract description 97
- 238000003672 processing method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 48
- 239000011094 fiberboard Substances 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009489 vacuum treatment Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 23
- 239000010410 layer Substances 0.000 description 28
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1858—Handling of layers or the laminate using vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/42—Alternating layers, e.g. ABAB(C), AABBAABB(C)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
Abstract
The invention relates to the technical field of layered products, in particular to an easy-to-weld fiber metal laminated plate and a processing method thereof, wherein the easy-to-weld fiber metal laminated plate comprises N+1 metal plates and N fiber plates, the metal plates and the fiber plates are alternately arranged, two metal plates at the outer layer are outer-layer metal plates, and the rest metal plates are inner-layer metal plates; through set up first filling groove and second filling groove on the both ends face of inlayer metal sheet to pack the inflation body in first filling groove and second filling groove, in welding process, the inflation of inflation body is heated and is taken place the inflation in first filling groove and the second filling groove, and the inflation of inflation body extrudees the fibreboard, and the inflation of inflation body extrudees the deformation with inlayer metal sheet, makes inlayer metal sheet and outer metal sheet butt each other, has increased fibre metal laminated board's electric conductivity, guarantees simultaneously that fibre metal laminated board's intensity is stable in the position that does not weld.
Description
Technical Field
The invention relates to the technical field of layered products, in particular to an easy-to-weld fiber metal laminated plate and a processing method thereof.
Background
The fiber metal laminated board is an interlayer composite material formed by alternately paving metal board layers and fiber board layers and solidifying the metal board layers and the fiber board layers under certain temperature and pressure. The fiber metal laminated board has the characteristics of small density, good impact property, long fatigue life, high damage tolerance and the like. The connection method of the fiber metal laminated plate is generally performed by using a resistance welding method, in which the welding member is locally heated and simultaneously pressurized by using resistance heat generated by passing current through the welding member and the contact portion as a heat source, but the resistance welding cannot be performed due to poor conductive performance of the fiber metal layer during the welding process.
In the prior art, for example, the chinese patent application with the publication number CN111674123B grants a fiber metal laminate, a method for manufacturing the same, and a method for electric resistance welding, in which a region to be welded is provided, a metal protrusion is provided on a metal plate layer in the region to be welded, and the metal protrusion penetrates through the fiber plate layer, so that the metal protrusion on the metal plate layer can abut against each other during electric resistance welding, and ensure that electric resistance welding can be performed normally, but in a position where welding is not performed, the metal protrusion breaks the structure of the fiber laminate, so that the strength of the fiber metal laminate is poor, and welding can only be performed in a specific position during welding, so that the fiber metal laminate in the disclosure has poor applicability.
Disclosure of Invention
The invention provides an easy-to-weld fiber metal laminated board and a processing method thereof, which are used for solving the problem of reduced strength of the existing fiber metal laminated board.
The invention relates to an easy-to-weld fiber metal laminated board and a processing method thereof, which adopts the following technical scheme:
the utility model provides an easy-to-weld fiber metal laminated board, includes N+1 metal sheets and N fibreboard, N+1 metal sheets and N fibreboard are arranged alternately, wherein N is greater than 1 positive integer, and two metal sheets that are in the skin are outer metal sheets, and the other metal sheets are inlayer metal sheets; the upper end face and the lower end face of the inner layer metal plate are respectively provided with a first filling groove and a second filling groove, the first filling grooves and the second filling grooves are alternately arranged in any one end face of the inner layer metal plate, and the first filling grooves at the upper end of the inner layer metal plate and the second filling grooves at the lower end of the inner layer metal plate are positioned on the same vertical surface; the expansion bodies are filled in the first filling groove and the second filling groove, the expansion bodies can expand when being heated, the expansion bodies can extrude the inner metal plate to deform the inner metal plate, the expansion bodies can stir the fiber plate, and the inner metal plate and the outer metal plate are in mutual butt joint.
Further, the expansion body is expanded graphite powder, the volume of the expanded graphite powder is increased after the expanded graphite powder is heated, and the expanded graphite powder can conduct electricity.
Further, the fiberboard has a slit.
Further, the first filling groove is provided with a first groove position and a second groove position, and an included angle is formed between the first groove position and the second groove position.
Further, the vertical sections of the first groove position and the second groove position of the first filling groove are V-shaped, the first groove position and the second groove position are adjacently arranged left and right, and the vertical section of the second filling groove is trapezoidal.
Further, the edges of the first filling groove and the second filling groove are both arranged in an arc shape.
Further, the processing method of the easy-to-weld fiber metal laminated board is used for processing the easy-to-weld fiber metal laminated board, and comprises the following steps of:
s100: selecting N-1 metal plates from the N+1 metal plates as inner metal plates; the rest is an outer layer metal plate;
s200: milling a first filling groove and a second filling groove on the upper end surface and the lower end surface of the inner layer metal plate;
s300: the metal plates and the fiber plates are alternately arranged, and an expansion body is filled in the first filling groove and the second filling groove on the inner layer metal plate;
s400: carrying out hot press shaping on the arranged metal plates and fiber plates;
wherein N is a positive integer greater than 1.
Further, the step S300 includes:
s310: horizontally placing each milled inner metal plate, and filling expansion bodies in the first filling groove and the second filling groove of the upper end face;
s320: placing each fiber board above one inner layer metal plate one by one to form N-1 first whole bodies, and overturning each first whole body;
s330: filling expansion bodies in the first filling groove and the second filling groove of the upper end face of the inner-layer metal plate again;
s340: stacking the N-1 first integral bodies, and placing a fiber plate above the uppermost first integral body;
s350: and respectively placing an outer metal plate at the upper end and the lower end of the first integral body which is completed by stacking.
Further, step S400 includes:
s410: placing the arranged metal plates and fiber plates in a mold;
s420: the mold is placed entirely in a vacuum bag and subjected to a vacuum process.
Further, step S400 further includes:
s430: carrying out hot pressing treatment on the metal plate and the fiber plate which are subjected to the vacuum treatment;
s440: the hot pressing temperature is adjusted to 120 ℃;
s450: the mold is oscillated during the hot pressing.
The beneficial effects of the invention are as follows: the invention relates to an easy-to-weld fiber metal laminated board, which comprises N+1 metal plates and N fiber plates, wherein the metal plates and the fiber plates are alternately arranged, two metal plates at the outer layer are outer-layer metal plates, and the rest metal plates are inner-layer metal plates; through set up first filling groove and second filling groove on the both ends face of inlayer metal sheet to pack the inflation body in first filling groove and second filling groove, in welding process, the inflation of inflation body is heated and is taken place the inflation in first filling groove and the second filling groove, and the inflation of inflation body extrudees the fibreboard, and the inflation of inflation body extrudees the deformation with inlayer metal sheet, makes inlayer metal sheet and outer metal sheet butt each other, has increased fibre metal laminated board's electric conductivity, guarantees simultaneously that fibre metal laminated board's intensity is stable in the position that does not weld.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is an elevation view of an embodiment of a weldable fiber metal laminate sheet material;
FIG. 2 is an exploded view of an embodiment of the present invention providing a weldable fiber metal laminate sheet;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of an embodiment of the present invention when a weld spot is made on a metal laminate sheet of a readily weldable fiber;
fig. 5 is a flowchart of a processing method of an easy-to-weld fiber metal laminated board according to an embodiment of the invention.
In the figure: 110. a metal plate; 111. an inner layer metal plate; 112. an outer layer metal plate; 120. a fiber board; 210. a first filling groove; 220. a second filling groove; 310. and (5) expanding graphite powder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1 to 4, the easily welded fiber metal laminated board provided in the embodiment of the invention includes n+1 metal plates 110 and N fiber plates 120, where n+1 metal plates 110 and N fiber plates 120 are alternately arranged, N is a positive integer greater than 1, the metal plates 110 and the fiber plates 120 are identical in size, the positions of the fiber metal laminated board according to the metal plates 110 can be divided into an inner metal plate 111 and an outer metal plate 112, the two metal plates at the outer layer are the outer metal plates 112, and the rest metal plates are the inner metal plates 111.
First filling grooves 210 and second filling grooves 220 are provided on the upper end face and the lower end face of each inner metal plate 111, and in the upper end face or the lower end face of the inner metal plate 111, the first filling grooves 210 and the second filling grooves 220 are alternately arranged, and the fiber metal laminated plate is exemplified by cutting the vertical face extending left and right, and the first filling grooves 210 in the upper end face and the second filling grooves 220 in the lower end face of the inner metal plate 111 are located on the same vertical face. Specifically, the first filling groove 210 has a first groove position and a second groove position, an included angle is formed between the first groove position and the second groove position, taking a horizontal state of the fiber metal laminated plate as an example, the first groove position and the second groove position of the first filling groove 210 are both in V-shapes with upward or downward openings, and the second filling groove 220 is in an isosceles trapezoid with upward or downward openings. Wherein, the first slot position and the second slot position of the first filling slot 210 are adjacently arranged left and right, the V-shaped outline size and the angle of the first slot position and the second slot position are completely consistent, the first slot position and the second slot position form a W shape, the angular bisector of the included angle between the first slot position and the second slot position is a vertical line, and the angular bisector of the included angle between the first slot position and the second slot position passes through the middle part of the second filling slot 220.
The expansion bodies are filled in the first filling groove 210 and the second filling groove 220, the expansion bodies can expand when being heated, the expansion bodies can extrude the inner metal plate 111 to deform, the expansion bodies can stir the fiber plates 120, the inner metal plate 111 and the outer metal plate 112 are in mutual contact, the conductivity of the fiber metal laminated plate is increased, and the efficiency of resistance welding of the fiber metal laminated plate is improved.
In this embodiment, the expansion body is expanded graphite powder 310, the volume of the expanded graphite powder 310 increases after being heated, and the expanded graphite powder 310 can squeeze the inner metal plate 111 during the expansion process, so that the inner metal plate 111 deforms. The expanded graphite powder 310 can tear the fiberboard 120 during the expansion process, and ensures that the deformed inner metal plates 111 can abut against each other, while the inner metal plates 111 can abut against the outer metal plates 112. Further, the expanded graphite powder 310 is able to conduct electricity, and after the expanded graphite powder 310 is expanded, the expanded graphite powder 310 fills in the gaps between the inner-layer metal sheet 111 and the fiber sheet 120, further increasing the conductivity of the fiber metal laminate sheet.
In this embodiment, the fiber board 120 has gaps, and the expansion of the expanded graphite powder 310 can squeeze the fiber board 120 out of the gaps during the expansion of the expanded graphite powder 310, and the expanded graphite powder 310 can fill the gaps of the fiber board 120 during the expansion of the expanded graphite powder 310, thereby increasing the conductivity of the fiber board 120.
In this embodiment, the edges of the first filling groove 210 and the second filling groove 220 are both arc-shaped, so that the expanded graphite powder 310 can be prevented from being too concentrated in the process of pressing the inner metal sheet 111, and the inner metal sheet 111 can be further prevented from being torn.
As shown in fig. 5, a method for processing a metal laminate sheet with easily welded fibers according to an embodiment of the present invention is used for processing the metal laminate sheet with easily welded fibers shown in fig. 1 to 4, and includes the following steps:
s100: n-1 metal plates 110 are selected from the N+1 metal plates 110 as inner metal plates 111, and the other two metal plates are outer metal plates 112; wherein N is a positive integer greater than 1, and the number of the fiber plates 120 is N; wherein the outline and the size of the inner metal plate 111 and the outer metal plate 112 are identical.
S200: the upper end surface and the lower end surface of the inner layer metal plate 111 are milled to form a first filling groove 210 and a second filling groove 220, wherein the first filling groove 210 is provided with a first groove position and a second groove position, the first groove position and the second groove position are both in a V shape with an upward or downward opening, the first groove position and the second groove position are arranged, and an included angle is formed between the first groove position and the second groove position, so that the first groove position and the second groove position form a W shape; the second filling grooves 220 are arranged in a trapezoid shape with an opening facing upward or downward, and the first filling grooves 210 are alternately distributed with the second filling grooves 220. Any one of the first filling grooves 210 in the upper end face of the inner metal plate 111 always has one second filling groove 220 in the lower end face on the same vertical face. The edges of the first filling groove 210 and the second filling groove 220 are then each cut into an arc shape.
S300: the metal plates 110 and the fiber plates 120 are alternately arranged, and the first filling grooves 210 and the second filling grooves 220 on the inner layer metal plate 111 are filled with an expansion body, which can expand when heated, wherein the expansion body is expanded graphite powder 310, the expanded graphite powder 310 has conductivity, the expanded graphite powder 310 can squeeze the fiber plates 120 and the inner layer metal plate 111 when heated and expanded, and the initial expansion temperature of the expanded graphite powder 310 is 290-300 ℃.
S400: and (3) performing hot press shaping on the arranged metal plates 110 and the fiber plates 120, and adjusting the hot press shaping temperature to be smaller than the initial expansion temperature of the expanded graphite powder 310.
Further, the step S300 includes:
s310: placing each milled inner metal plate 111 horizontally and filling the expanded graphite powder 310 into the first filling groove 210 and the second filling groove 220 of the upper end face; after each milled inner metal plate 111 is horizontally placed, the inner metal plate 111 has an upper end face and a lower end face, and the expanded graphite powder 310 is filled in the first filling groove 210 and the second filling groove 220 in the upper end face.
S320: placing each fiber board 120 one by one above one inner layer metal plate 111 to form N-1 first integral bodies, and turning over each first integral body; after the filling of the expanded graphite powder 310 in the first filling groove 210 and the second filling groove 220 on the upper end surface of the inner metal sheet 111 is completed, each fiberboard 120 is placed above one inner metal sheet 111, and at this time, one inner metal sheet 111 and one fiberboard 120 form a first whole, N-1 first whole is formed altogether, and each first whole is turned over, so that the upper and lower end surfaces of the inner metal sheet 111 in each first whole are turned over, and the fiberboard 120 is positioned below the inner metal sheet 111 in the turned first whole.
S330: filling the expanded graphite powder 310 into the first filling groove 210 and the second filling groove 220 of the upper end surface of the inner metal sheet 111 again; the first filling grooves 210 and the second filling grooves 220 in the upper end face of the inner metal plate 111 in each of the turned first whole are filled with the expanded graphite powder 310, and at this time, the first filling grooves 210 and the second filling grooves 220 in the upper and lower end faces of the inner metal plate 111 are filled with the expanded graphite powder 310.
S340: placing N-1 first unitary stacks and one fiberboard 120 over the uppermost first unitary inner sheet 111; in the N-1 first integral stacking process, the fiber plates 120 and the inner metal plates 111 are alternately arranged in sequence from bottom to top, and one fiber plate 120 is placed over the uppermost first integral inner metal plate 111 to prevent the expanded graphite powder 310 on the inner metal plate 111 from being separated from the first filling groove 210 and the second filling groove 220.
S350: an outer metal plate 112 is placed at each of the upper and lower ends of the stacked first body to ensure that the outermost side of the fiber metal laminate sheet is the metal plate 110.
Further, step S400 includes:
s410: the arranged metal plates 110 and the fiber plates 120 are placed in a mold, wherein the shape of the mold is consistent with the outline of the metal plates 110, and the metal plates 110 and the fiber plates 120 are orderly arranged under the limit action of the mold.
S420: the mold is integrally placed in a vacuum bag, and vacuumized, so that air between the metal plate 110 and the fiber plate 120 is reduced, and the tight adhesion between the metal plate 110 and the fiber plate 120 is ensured.
Further, step S400 further includes:
s430: the metal plate 110 and the fiber plate 120 after the vacuum treatment are subjected to the heat press treatment, and the metal plate 110 and the fiber plate 120 can be surely closely adhered together by the heat press treatment.
S440: the hot pressing temperature is adjusted to 120 ℃, the hot pressing temperature is lower than the initial expansion temperature of the expanded graphite powder 310 when the hot pressing temperature is 120 ℃, and the hot pressing treatment of the metal plate 110 and the fiber plate 120 is completed when the expanded graphite powder 310 does not start to expand.
S450: the mold oscillates during the hot pressing process, and the expanded graphite powder 310 can be filled in the gaps of the fiber plates 120 during the oscillation process of the mold, so that the conductivity of the fiber plates 120 is increased on the basis of ensuring the strength of the fiber plates 120.
In combination with the above embodiment, the use process of the easy-to-weld fiber metal laminated board provided by the embodiment of the invention is as follows:
when the fiber metal laminated board is used, the manufactured fiber metal laminated board is cut out according to the required size, welding treatment is carried out at the position needing to be welded, the conventional welding mode is resistance welding, in the welding process, as the expanded graphite powder 310 is filled in the gaps of the fiber board 120, the expanded graphite powder 310 has certain conductivity, the resistance of the fiber metal laminated board is larger, and along with the progress of welding, the fiber metal laminated board has partial current to pass, so that the temperature of the welding point is slowly increased. When the temperature of the welding point reaches the initial expansion temperature of the expanded graphite powder 310, the expanded graphite powder 310 in the first filling groove 210 and the second filling groove 220 on the upper end surface and the lower end surface of the inner metal plate 111 gradually start to expand, the expanded graphite powder 310 can expand to several times of the self, when the expanded graphite powder 310 expands in the first filling groove 210, as the first filling groove 210 is provided with the first groove position and the second groove position, when the inner metal plate 111 is in a horizontal state, the first groove position and the second groove position are in a V shape with the opening facing upwards or downwards, and the first groove position and the second groove position form a W shape, when the expanded graphite powder 310 expands in the first filling groove 210, the expanded graphite powder 310 diffuses in all directions in the first groove position and the second groove position, the included angle between the first groove position and the second groove position gradually decreases, and the first groove position and the second groove position squeeze and tear the adjacent fiber plate 120, so that the fiber plate 120 is provided with a notch. When the expanded graphite powder 310 expands in the second filling groove 220, the expanded graphite powder 310 in the second filling groove 220 diffuses in all directions, so that the expanded graphite powder 310 pushes the inner metal sheet 111 to deform, under the expansion action of the expanded graphite powder 310 in the second filling groove 220, the tip formed by the included angle between the first groove position and the second groove position on the inner metal sheet 111 is gradually pushed, so that the inner metal sheet 111 passes through the notch on the fiber sheet 120, and the inner metal sheet 111 gradually abuts against the adjacent inner metal sheet 111 or outer metal sheet 112, thereby ensuring that the inner metal sheet 111 and the outer metal sheet 112 abut against each other, further increasing the conductivity of the fiber metal laminated sheet, improving the efficiency of resistance welding, and keeping the original state of the fiber sheet 120 in the non-welding position of the fiber metal laminated sheet, so that the strength of the fiber metal laminated sheet is stable.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An easy-to-weld fiber metal laminate sheet, characterized in that: the fiber comprises N+1 metal plates and N fiber plates, wherein the N+1 metal plates and the N fiber plates are alternately arranged, N is a positive integer greater than 1, two metal plates at the outer layer are outer layer metal plates, and the rest metal plates are inner layer metal plates; the upper end face and the lower end face of the inner layer metal plate are respectively provided with a first filling groove and a second filling groove, the first filling grooves and the second filling grooves are alternately arranged in any one end face of the inner layer metal plate, and the first filling grooves at the upper end of the inner layer metal plate and the second filling grooves at the lower end of the inner layer metal plate are positioned on the same vertical surface; the first filling groove and the second filling groove are filled with expansion bodies, the expansion bodies can expand when being heated, the expansion bodies can squeeze the inner-layer metal plate to deform the inner-layer metal plate, the expansion bodies can stir the fiber plates, and the inner-layer metal plate and the outer-layer metal plate are in mutual abutting connection; the expansion body is expanded graphite powder, the volume of the expanded graphite powder is increased after being heated, and the expanded graphite powder can conduct electricity; the initial expansion temperature of the expanded graphite powder is 290-300 ℃; the first filling groove is provided with a first groove position and a second groove position, and an included angle is formed between the first groove position and the second groove position; the vertical sections of the first groove position and the second groove position of the first filling groove are V-shaped, the first groove position and the second groove position are adjacently arranged left and right, and the vertical section of the second filling groove is trapezoidal.
2. The easy welded fiber metal laminate panel of claim 1, wherein: the fiberboard has a slit.
3. The easy welded fiber metal laminate panel of claim 1, wherein: the edges of the first filling groove and the second filling groove are all arranged in an arc shape.
4. A method of processing a free-standing fiber metal laminate of any one of claims 1-3, comprising the steps of:
s100: selecting N-1 metal plates from the N+1 metal plates as inner metal plates; the rest is an outer layer metal plate;
s200: milling a first filling groove and a second filling groove on the upper end surface and the lower end surface of the inner layer metal plate;
s300: the metal plates and the fiber plates are alternately arranged, and an expansion body is filled in the first filling groove and the second filling groove on the inner layer metal plate;
s400: carrying out hot press shaping on the arranged metal plates and fiber plates;
wherein N is a positive integer greater than 1.
5. The method of processing a metal laminate sheet of weldable fibers of claim 4, wherein: the step S300 includes:
s310: horizontally placing each milled inner metal plate, and filling expansion bodies in the first filling groove and the second filling groove of the upper end face;
s320: placing each fiber board above one inner layer metal plate one by one to form N-1 first integers, and overturning each first integer;
s330: filling expansion bodies in the first filling groove and the second filling groove of the upper end face of the inner-layer metal plate again;
s340: stacking the N-1 first integral bodies, and placing a fiber plate above the uppermost first integral body;
s350: and respectively placing an outer metal plate at the upper end and the lower end of the first integral body which is completed by stacking.
6. The method of processing a metal laminate sheet of weldable fibers of claim 4, wherein: the step S400 includes:
s410: placing the arranged metal plates and fiber plates in a mold;
s420: the mold is placed entirely in a vacuum bag and subjected to a vacuum process.
7. The method of processing a metal laminate sheet of weldable fibers of claim 6, wherein: step S400 further includes:
s430: carrying out hot pressing treatment on the metal plate and the fiber plate which are subjected to the vacuum treatment;
s440: the hot pressing temperature is adjusted to 120 ℃;
s450: the mold is oscillated during the hot pressing.
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| CN202311335338.8A CN117087262B (en) | 2023-10-16 | 2023-10-16 | Easily welded fiber metal laminated plate and processing method thereof |
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| CN202311335338.8A CN117087262B (en) | 2023-10-16 | 2023-10-16 | Easily welded fiber metal laminated plate and processing method thereof |
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| CN117087262B true CN117087262B (en) | 2024-03-05 |
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