CN105109146A - Manufacturing technology of metal interlayer plate in which damping film is embedded - Google Patents
Manufacturing technology of metal interlayer plate in which damping film is embedded Download PDFInfo
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- CN105109146A CN105109146A CN201510520606.2A CN201510520606A CN105109146A CN 105109146 A CN105109146 A CN 105109146A CN 201510520606 A CN201510520606 A CN 201510520606A CN 105109146 A CN105109146 A CN 105109146A
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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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
- B32B37/0084—Point bonding
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
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Abstract
The invention discloses a manufacturing technology of a metal interlayer plate in which a damping film is embedded. The manufacturing technology includes the steps that firstly, a metal interlayer plate structure in which the damping film is embedded is designed; secondly, the damping film is manufactured; thirdly, metal plates and the damping film are laid according to the design requirement; fourthly, technological parameters of a spot welder are adjusted, a proper spot welding technology mold is designed and manufactured, a damping film layer between the metal plates becomes thin through pressure of welding points, the thinned position of the damping film layer is punctured under the action of an external electric field, a discharging channel is generated, local high temperature is formed, the thinned damping film portion will be firstly combusted and gasified, a gap between metal layers at the thinned position of the damping layer becomes small, a local discharging channel is formed, and local metal between layer interfaces is melted together under the action of pressure and high temperature; fifthly, the damping metal interlayer plate is formed after spot welding machining and cooling. A foundation is laid for research of the design theory of an orthotropic damping structure and wide application of the metal interlayer plate structure in which the damping film is embedded.
Description
Technical field
The present invention is the crossing research field of Noise and Vibration Control and functional material, and especially a kind of new technology of friction welding and/or mash welder welding that uses makes the metal sandwich plate structure embedding damping diaphragm.
Background technology
Traditional metal material and structure can not meet the designing requirement of aircraft high rigidity, large damping capacity.Between sheet metal, embed damping diaphragm just form a kind of new damping embedded structure, it proposes a kind of new construction with high damping vibration attenuation anti-acoustic capability on maintenance conventional metals sheet material mechanical property basis, it is the multiphase solid material that two or more material of different nature is combined by pad or sealing wire by a class, analyze from its Nomenclature Composition and Structure of Complexes, wherein have one to be that continuous print is called that matrix is as sheet metal in layer, and another is isotropic visco-elastic damping material mutually.
The embedded co-curing of applicant's earlier application is bored a hole in damping diaphragm and grid damping diaphragm composite structure, the connection of its damping material and matrix material is mainly leaned on the physics between chemical bond (namely chemical reaction forms IPN structure) and material to fuse with co-curing reaction and is realized connecting between interface, thus makes embedded co-curing damp composite material structure.But this structure is only only limitted to make polymer matrix composites, the damping capacity that will improve its component for sheet metal can only use the method for passive damping process usually, comprise free damping structure, constrained damping structure and damping insert structure, and these three kinds of ways all belong to and process afterwards, often be subject to the restriction of the factors such as physical dimension, space and weight, and in use also easily occur phenomenons such as peeling off, come off.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of metallic sandwich sheet manufacture craft embedding damping diaphragm is provided, this technique is by the pressure of mash welder on welding position and high temperature, make the first combustion gasification of Local Damping layer thinning position viscoelastic material, also make gap smaller between the metal level on the thinning position of damping layer simultaneously, form shelf depreciation passage, localized metallic between bed boundary is just melted in together, after cooling, the top and bottom of metallic sandwich sheet just link together partly, make the metal sandwich plate structure embedding damping diaphragm.When noting making this damping diaphragm metal sandwich board member, the wire bonding of mash welder finally must be used to stitch the periphery of component is coupled together completely, thus the damping material in the metallic sandwich sheet of embedding damping diaphragm is closed in an independent space, prevent damping diaphragm periphery to be chronically exposed to aging in used environment coming off.
For achieving the above object, the present invention adopts following technical proposals:
Embed a metallic sandwich sheet manufacture craft for damping diaphragm, comprise the following steps:
1) design embeds the metal sandwich plate structure of damping diaphragm, and every layer of damping diaphragm thickness is less than 2mm;
2) damping diaphragm is made;
3) sheet metal and damping diaphragm are laid according to designing requirement; Damping diaphragm is laid on sheet metal, then lays covering sheet metal, when the metal sandwich plate structure of multilayer damping diaphragm will be made, above-mentioned process of deployment can be repeated, until meet design requirement.
4) adjust the technological parameter of mash welder and select corresponding spot-welding technology mould, pad is or/and operation pressure on line, and pad when being greater than pure spot welding sheet metal is or/and Wiring technology pressure; Pad is or/and means of spot welds voltage when line place voltage is greater than pure spot welding sheet metal; By the pressure of pad, make the damping diaphragm layer that is clipped between sheet metal thinning, under the effect of external electric field, the thinning position of damping diaphragm layer is breakdown, produces discharge channel, form localized hyperthermia, damping diaphragm place thinning like this will first combustion gasification, also makes gap smaller between the metal level on the thinning position of damping layer simultaneously, forms shelf depreciation passage, under the effect of pressure and high temperature, the localized metallic between bed boundary is just melted in together;
5), after spot welding processing cooling, the top and bottom of metallic sandwich sheet just link together partly, form damping metallic sandwich sheet.
The metal sandwich plate structure embedding damping diaphragm in described step 1) is individual layer damping metallic plate sandwich structure, or is more than or equal to two-layer damping metallic plate sandwich structure.
In described step 1), every layer of damping diaphragm can be perforation damping structure, or grid damping structure, or bores a hole and the combined damping structure of grid.
In described step 3), sheet metal is smooth, sheet metal is the sheet metal of same material as required, or the sheet metal of not same material, the more weak sheet metal design of mechanical property is near the position of neutral line, the sheet metal that mechanical property is stronger designs in the position away from neutral line, when using the sheet metal of material not of the same race, note preventing electrochemical corrosiveness.
In described step 4), when adopting solder joint to connect the metal sandwich plate structure embedding damping diaphragm, use and weld a mash welder connected;
In described step 4), when adopting bonding wire to connect the metal sandwich plate structure embedding damping diaphragm, use the mash welder welding line and connect.
Spot-welding technology mould in described step 4), for the mould that perforation damping structure connects, described mould and absorption surface position are of a size of 1.1 to 1.5 times that weld rear round dot diameter, the capping that panel is thick, the line taking lower limit that panel is thin, thickness is here the thickness sum of all panels.
Spot-welding technology mould in described step 4), for the mould that grid damping structure connects, the size at described mould and absorption surface position is 1.1 to 1.5 times of welding position mesh spacing, the capping that panel is thick, the line taking lower limit that panel is thin, thickness is here the thickness sum of all panels.
In the present invention, first the enough large damping diaphragm of area will be made, thickness is generally within 2 millimeters, can make by oneself, also ready-made large damping rubber film can be bought, but the curing temperature of this damping diaphragm and cure time will be selected based on the actual application requirements in using, general Long-Time Service environment temperature will far below the curing temperature of damping material, after sulfuration, the peak value of the kinetic curve of its material of damping diaphragm and serviceability temperature scope must be broad, the peak point corresponding temperature of kinetic curve should be the environment temperature that component is applied usually, like this by riveting or/and the pad of mash welder is or/and the sheet metal of damping diaphragm both sides couples together by sealing wire, become damping metallic sandwich sheet, total is made to have higher damping capacity.
The metallic sandwich sheet of the embedding damping diaphragm of design can be individual layer damping metallic plate sandwich structure, also can be multilayer damping metallic plate sandwich structure, but it is too thick that every layer of damping material film can not design, general within 2 millimeters of scopes, and in same structure situation, multilayer damping structure is higher than the fissipation factor of individual layer damping structure.Overall structure rigidity is reduced in order to prevent continuous damping, every layer of damping can be designed to damping structure of boring a hole, grid damping structure, or the combination of dampings structure of perforation and grid, so just can realize the object increasing substantially structural damping when seldom reducing the rigidity of structure.When noting making this damping diaphragm metal sandwich board member, the wire bonding of mash welder finally must be used to stitch the periphery of component is coupled together completely, thus the damping material in the metallic sandwich sheet of embedding damping diaphragm is closed in an independent space, prevent damping diaphragm periphery to be chronically exposed to aging in institute's environment for use coming off.
The link position of its secondary reasonable design damping metallic sandwich sheet and punch position, the area of single damping fin is adjusted by link position, length-width ratio, arrangement mode, and the spacing between damping diaphragm small pieces, whole metal sandwich plate structure is made to have different damping capacities in a different direction, realize the anisotropic of structural damping performance, the link position of concrete damping metallic sandwich sheet is with reference to " embedded co-curing perforation damping diaphragm composite structure and making thereof, application number is 201410257835.5 " and apply for a patent " embedded co-curing grid damp composite material structure and manufacture craft thereof, application number is 201410257832.1 ", here punch position and/or grid position are exactly the link position of damping metallic sandwich sheet, the form that is connected of punch position and grid position can certainly be adopted.
When selected element welding machine, if the link position of damping metallic sandwich sheet is designed to type of attachment of boring a hole, just adopt spot-welding technology; If the link position of damping metallic sandwich sheet is designed to Mesh connection form, just adopt the wire bonding technique of mash welder; If the link position of damping metallic sandwich sheet is designed to a little or/and the form that is connected of line; Just adopt wire bonding technique respectively or/and spot-welding technology make welding after the damping fin of damping metallic sandwich sheet become perforation damping and grid damping or their combining form.
Due to the non-conductive of damping material or weakly conducting performance, almost directly block the circuit turn-on of weld locations during mash welder work, so at pad or/and line time, the technological parameter of mash welder is used to be different from the means of spot welds technological parameter of sheet metal, show this patent pad or/and operation pressure on line, pad when being greater than pure spot welding sheet metal is or/and Wiring technology pressure; This patent pad is or/and means of spot welds voltage when line place voltage is greater than pure spot welding sheet metal.By the pressure of pad, make the damping layer that is clipped between sheet metal thinning, under the effect of external electric field, local meeting (the thinning position of damping layer) is breakdown, produce discharge channel, form localized hyperthermia, damping diaphragm place thinning like this will first combustion gasification, also make gap smaller between the metal level on the thinning position of damping layer simultaneously, form shelf depreciation passage, under the effect of pressure and high temperature, localized metallic between bed boundary is just melted in together, after cooling, the top and bottom of metallic sandwich sheet just link together partly, form damping metallic sandwich sheet.Can improve integrally-built dynamic performance as metal sandwiched damping board, a large amount of bibliography research conclusions demonstrates this point.
The present invention is earlier application patent " embedded co-curing perforation damping diaphragm composite structure and manufacture craft thereof " on the original basis embedding perforation damping structure and grid damping structure, application number is 201410257835.5 and earlier application patent " embedded co-curing grid damp composite material structure and manufacture craft thereof ", application number is on the basis of 201410257832.1, mode grid damping and perforation damping structure combined is proposed, form a kind of complexity and mix the new construction wearing metal sandwiched damping board, increase the design parameter of structural damping anisotropic, Accurate Design for structural damping provides more multivariable, the distribution form of concrete damping block can refer to the first two patent, as long as reasonably combine, just can form the multiple metal sandwiched damping board having specific damping function.
Damping diaphragm in the present invention is prior art, the application number of its structure and applicant's earlier application be 201410257835.5 and 201410257832.1 damp composite material in structure identical, do not repeat them here.
But the present invention and original application patent have 2 main distinctions: the type of attachment of first damping material and matrix material; It two is manufacture crafts of total.The embedded co-curing applied for above is bored a hole in damping diaphragm and grid damping diaphragm composite structure, the connection of its damping material and matrix material is mainly leaned on the physics between chemical bond (namely chemical reaction forms IPN structure) and material to fuse with co-curing reaction and is realized connecting between interface, make embedded co-curing damp composite material structure, be only applicable to polymer matrix composites, the metal sandwich plate structure embedding damping diaphragm cannot be made, the dynamic performance of sheet metal cannot be improved.And the present invention is mainly by the pressure of mash welder on welding position and high temperature, make the first combustion gasification of Local Damping layer thinning position viscoelastic material, also make gap smaller between the metal level on the thinning position of damping layer simultaneously, form shelf depreciation passage, localized metallic between bed boundary is just melted in together, after cooling, the top and bottom of metallic sandwich sheet just link together partly, make the metal sandwich plate structure embedding damping diaphragm, with traditional free damping structure, constrained damping structure is compared with damping insert structure, there is dynamic performance high, the not aging advantage such as to come off.
The present invention embeds damping diaphragm and just forms a kind of new damping embedded structure between sheet metal, it proposes a kind of new construction with high damping vibration attenuation anti-acoustic capability on maintenance conventional metals sheet material mechanical property basis, it is the multiphase solid material that two or more material of different nature is combined by pad or sealing wire by a class, analyze from its Nomenclature Composition and Structure of Complexes, one is wherein had to be that continuous print is called that matrix is as sheet metal in layer, and another is isotropic visco-elastic damping material mutually, designer arranges pad or line position as required and penetrates viscoelastic damping continuous film by pad or line and coupled together by its upper and lower metal.Its matrix phase and visco-elastic damping material play coordinative role in performance, thus reach the object improving sheet metal damping significantly, obtain the comprehensive mechanical property that homogenous material hardly matches.When noting making this damping diaphragm metal sandwich board member, the wire bonding of mash welder finally must be used to stitch the periphery of component is coupled together completely, damping diaphragm periphery is prevented to be chronically exposed in institute's environment for use, this prior impedance bundary structure is embedded in matrix material inside compared with traditional damping form, there is vibration insulation and noise reduction performance good, do not come off, anti-aging, shock-resistant, the advantages such as antifatigue, therefore this material structure replaces original sheet metal in aviation, space flight, vehicle, boats and ships, automobile, bullet train, lathe, switch, electronics, the industries such as computer have wide application prospect.
Accompanying drawing explanation
Fig. 1 embeds metal sandwich structure (before the spot welding) figure of continuous damping;
Fig. 2 embeds metal sandwich structure (before the spot welding) figure of the continuous damping of multilayer;
Fig. 3 embeds the metal sandwich structure figure of perforation damping;
Fig. 4 embeds the metal sandwich structure figure of grid damping;
Fig. 5 embeds the metal sandwich structure figure of multilayer perforation damping;
Fig. 6 embeds the metal sandwich structure figure of multi-layer net damping;
Grid damping fin distribution mode figure after the spot welding machine that Fig. 7 line connects, wherein Fig. 7 a is in-line arrangement formula, and Fig. 7 b is bifurcated row formula, and Fig. 7 c is non-middle bifurcated row formula;
Damping material in-line arrangement perforation distributions mode figure after Fig. 8 spot welding machine;
Bifurcated row perforation distributions mode figure in damping material after Fig. 9 spot welding machine;
The non-middle bifurcated row perforation distributions mode figure of damping material after Figure 10 spot welding machine;
The combining form figure of in-line arrangement perforation and grid damping after Figure 11 spot welding machine;
The combining form figure of Figure 12 spot welding machine back vent row perforation and grid damping;
The combining form figure of perforation and the damping of in-line arrangement square net after Figure 13 spot welding machine;
The combining form figure of perforation and the damping of in-line arrangement Rectangular grid after Figure 14 spot welding machine;
The combining form figure of perforation and the damping of fork platoon leader square net after Figure 15 spot welding machine;
Figure 16 embeds the fabrication processing figure of the metal sandwich plate structure of damping diaphragm;
Figure 17 welds the mash welder that line connects;
Figure 18 welds a mash welder connected;
Figure 19 mash welder welding schematic diagram
Wherein metal skin plate, 2. damping diaphragm on 1., 3. descend metal skin plate, 4. intermetallic metal skin panel, the wire bonding slit die tool 5. on mash welder, the means of spot welds mould 6. on mash welder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
The present invention is actual solves three problems: propose the mach several different perforation of a kind of convenience point weldering, grid damping or perforation and grid hybrid multilayer or individual layer damping metal sandwich plate structure, explore and use spot-welding technology to be embedded in the middle of sheet metal by vulcanized viscoelastic damping film, make the metal sandwich plate structure embedding damping diaphragm, develop and a set ofly make the spot-welding technology of metal sandwich plate structure embedding damping diaphragm, below in conjunction with accompanying drawing 1-Figure 19 and embodiment, the invention will be further described.
The metal sandwich plate structure embedding damping diaphragm is a kind of New Damping process structure, concrete structure as shown in Figures 1 to 6, here several damping fin distribution modes that the present invention proposes are as shown in Fig. 7 to Figure 15, the different distributions mode of damping diaphragm sheet, the damping capacity of this spline structure is also different, and its manufacture craft also has certain difference.Figure 16 is the flow process of manufacture craft, Figure 17 with Figure 18 welds mash welder that line is connected and weld a mash welder be connected, and Figure 19 is mash welder welding schematic diagram.
First the metal sandwich plate structure embedding damping diaphragm will be designed, it can be individual layer damping metallic plate sandwich structure, also can be multilayer damping metallic plate sandwich structure, it is too thick that every layer of damping material film can not design, general within 2 millimeters of scopes, and in same structure situation, multilayer damping structure is higher than the fissipation factor of individual layer damping structure, overall structure rigidity is reduced in order to prevent continuous damping, every layer of damping can be designed to damping structure of boring a hole, grid damping structure, or the combination of dampings structure of perforation and grid, so just can realize the object increasing substantially structural damping when seldom reducing the rigidity of structure, when making damping diaphragm metal sandwich board member, the wire bonding of mash welder finally must be used to stitch the periphery of component is coupled together completely, damping diaphragm periphery is prevented to be chronically exposed in institute's environment for use, this prior impedance bundary structure is embedded in matrix material inside compared with traditional damping form, there is vibration insulation and noise reduction performance good, do not come off, anti-aging, shock-resistant, the advantages such as antifatigue.
In manufacture craft, first the enough large damping diaphragm of area will be made, thickness is generally within 2 millimeters, can make by oneself, also ready-made large damping rubber film can be bought, but the curing temperature of this damping diaphragm and cure time will be selected based on the actual application requirements in using, general Long-Time Service environment temperature will far below the curing temperature of damping material, after sulfuration, the peak value of the kinetic curve of its material of damping diaphragm and serviceability temperature scope must be broad, the peak point corresponding temperature of kinetic curve should be the environment temperature that component is applied usually, like this by riveting or/and the pad of mash welder is or/and the sheet metal of damping diaphragm both sides couples together by sealing wire, become damping metallic sandwich sheet, total is made to have higher damping capacity.
Then be laid in by damping diaphragm on lower metal skin 3 thin plate, the damping diaphragm 2 of embedding is generally individual layer, re-lays metal skin 1 thin plate, makes the metal sandwich structure (before spot welding) of the continuous damping diaphragm of embedding as shown in Figure 1; If the damping diaphragm embedded is multilayer, just make the metal sandwich structure (before spot welding) of the continuous damping diaphragm of embedding multilayer shown in Fig. 2, note there is no adhesion between damping diaphragm here and sheet metal, the connection that realize between sheet metal by grid and/or perforation damping structure.
Finally will be placed on the manufacture craft mash welder shown in Figure 17 and Figure 18 realizing the metal sandwich plate structure embedding damping diaphragm as shown in Figure 1 with the continuous damping metal sandwich structure of the single or multiple lift shown in Fig. 2 semi-finished product.When selected element welding machine, if the link position of damping metallic sandwich sheet is designed to the perforation type of attachment shown in Fig. 3 and Fig. 5, just adopt spot-welding technology (using equipment as shown in figure 18); If the link position of damping metallic sandwich sheet is designed to the Mesh connection form shown in Fig. 4 and Fig. 6, just adopt the wire bonding technique of mash welder (using equipment as shown in figure 17); If the link position of damping metallic sandwich sheet is designed to a little or/and the form that is connected of line, just adopt wire bonding technique respectively or/and spot-welding technology make welding after the damping fin of damping metallic sandwich sheet become perforation damping and grid damping or their combining form.
This patent gives the metal sandwich plate structure of multiple embedding damping diaphragm, and their main distinction has 2 points: the quantity of first damping layer, and it two is link position and types of attachment thereof of every layer of damping fin.During design, the thickness of individual layer damping diaphragm can not be too thick, generally do not exceed 2mm, blocked up damping layer seriously can reduce the rigidity of structure, thicker single damping layer structure should be replaced by multi-layer thin damping layer structure during design as far as possible, that is use the multi-layer thin damping structure shown in Fig. 5 and Fig. 6 as far as possible, using the single monolayer thick damping structure of Fig. 3 and Fig. 4 less, like this when seldom reducing the rigidity of structure, improving the damping capacity of structure.Have a variety of as the link position of every layer of damping fin and type of attachment thereof, mainly contain perforation structure, network and perforation and grid combining structure, wherein perforation structure as shown in Figure 3 and Figure 5, grid damping structure as shown in Figure 4 and Figure 6, and the arrangement mode of grid damping fin comprise a) in-line arrangement formula as shown in Figure 7, b) in bifurcated row formula, c) non-middle bifurcated row formula three kinds; The arrangement mode of perforation structure middle punch position comprises three kinds of arrangement modes shown in Fig. 8, Fig. 9 and Figure 10 equally; The combining form of perforation and grid damping, as shown in Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15, certainly also has other combining form, does not just illustrate with figure one by one here.
Due to the non-conductive of damping material or weakly conducting performance, almost directly block the circuit turn-on of weld locations during mash welder work, so at pad or/and line time, the technological parameter of mash welder is used to be different from the means of spot welds technological parameter of sheet metal, show this patent pad or/and operation pressure on line, pad when being greater than pure spot welding sheet metal is or/and Wiring technology pressure; This patent pad is or/and means of spot welds voltage when line place voltage is greater than pure spot welding sheet metal.By the pressure of pad, make the damping layer that is clipped between sheet metal thinning, under the effect of external electric field, local meeting (the thinning position of damping layer) is breakdown, produce discharge channel, form localized hyperthermia, damping diaphragm place thinning like this will first combustion gasification, also make gap smaller between the metal level on the thinning position of damping layer simultaneously, form shelf depreciation passage, under the effect of pressure and high temperature, localized metallic between bed boundary is just melted in together, specifically as shown in figure 19, after cooling, the top and bottom of metallic sandwich sheet just link together partly, form damping metallic sandwich sheet, when noting making this damping diaphragm metal sandwich board member, the wire bonding of mash welder finally must be used to stitch the periphery of component is coupled together completely, damping diaphragm periphery is prevented to be chronically exposed to aging in institute's environment for use coming off.
In concrete enforcement, the present invention uses spot-welding technology, mainly in four steps, comprise: design damping structure also makes damping diaphragm, sheet metal and damping diaphragm carried out laying, adjusting the technological parameter of mash welder according to designing requirement and designs and produces suitable spot-welding technology mould and (if solder joint is connected the metal sandwich plate structure embedding damping diaphragm, weld a mash welder for connection with regard to shown in use Figure 18; If bonding wire connects the metal sandwich plate structure embedding damping diaphragm, just use the mash welder welding line connection shown in Figure 17) and edge sealing.The metal sandwich plate structure embedding damping diaphragm is just become after spot welding processing cooling.Specifically to note following item:
The first, design damping structure and make damping diaphragm, damping material (as parameters such as the size of fissipation factor and the height of environment for use temperature), the number of plies of design damping layer, each layer should be selected to embed the size of damping fin, the size of spacing and arrangement mode according to the serviceability of the metal sandwich plate structure of required embedding damping diaphragm and environment temperature and carry out customized or self-control damping diaphragm.The curing temperature of damping material and cure time will be selected based on the actual application requirements, general Long-Time Service environment temperature will far below the curing temperature of damping material, after sulfuration, the peak value of the kinetic curve of its material of damping diaphragm and serviceability temperature scope must be broad, and the peak point corresponding temperature of kinetic curve should be the environment temperature that component is applied usually.
The second, sheet metal and damping diaphragm are laid according to designing requirement, the sheet metal used is smooth, sheet metal can be the sheet metal of same material as required, also can be the sheet metal of not same material, the more weak sheet metal of General Mechanics performance should design in the position near neutral line, the sheet metal that General Mechanics performance is stronger should design in the position away from neutral line, when using the sheet metal of material not of the same race, note preventing electrochemical corrosiveness.
Three, the technological parameter adjusting mash welder uses suitable means of spot welds mould, due to the non-conductive of damping material or weakly conducting performance, almost directly block the circuit turn-on of weld locations during mash welder work, so at pad or/and line time, the technological parameter of mash welder is used to be different from the means of spot welds technological parameter of sheet metal, show this patent pad or/and operation pressure on line, pad when being greater than pure spot welding sheet metal is or/and Wiring technology pressure; This patent pad is or/and means of spot welds voltage when line place voltage is greater than pure spot welding sheet metal.The mould that means of spot welds uses will be determined according to connection in the metal sandwich plate structure of embedding damping diaphragm, for the mould that perforation structure connects, concrete structure is as shown in 5 in Figure 17 and Figure 18 and 6, here mould can carry before mash welder dispatches from the factory, for existing equipment, also can determine according to the size oneself of welding round dot diameter or mesh spacing in spot-welding technology, as long as mould and the size at absorption surface position are 1.1 to 1.5 times that weld round dot diameter or mesh spacing during design, the capping that panel is thick, the line taking lower limit that panel is thin, here thickness is the thickness sum of all panels.
Four, edge sealing, when making the metal sandwich board member embedding damping diaphragm, the wire bonding of mash welder must be used to stitch the periphery of component is coupled together completely, damping diaphragm periphery is prevented to be chronically exposed in institute's environment for use, thus make the damping material in the metallic sandwich sheet of embedding damping diaphragm be closed in an independent space, this prior impedance bundary structure closes to be embedded in matrix material inside compared with traditional damping form, have vibration insulation and noise reduction performance good, do not come off, the advantage such as anti-aging, shock-resistant, antifatigue.
Like this according to after Figure 19 processing, cooling just defines the metal sandwich plate structure embedding damping diaphragm.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (8)
1. embed a metallic sandwich sheet manufacture craft for damping diaphragm, it is characterized in that, comprise the following steps:
1) design embeds the metal sandwich plate structure of damping diaphragm, and every layer of damping diaphragm thickness is less than 2mm;
2) making or customized damping diaphragm;
3) sheet metal and damping diaphragm are laid according to designing requirement; Damping diaphragm is laid on sheet metal, then lays covering sheet metal;
4) adjust the technological parameter of mash welder and select corresponding spot-welding technology mould, pad is or/and operation pressure on line, and pad when being greater than pure spot welding sheet metal is or/and Wiring technology pressure; Pad is or/and means of spot welds voltage when line place voltage is greater than pure spot welding sheet metal; By the pressure of pad, make the damping diaphragm layer that is clipped between sheet metal thinning, under the effect of external electric field, the thinning position of damping diaphragm layer is breakdown, produces discharge channel, form localized hyperthermia, damping diaphragm place thinning like this will first combustion gasification, also makes gap smaller between the metal level on the thinning position of damping layer simultaneously, forms shelf depreciation passage, under the effect of pressure and high temperature, the localized metallic between bed boundary is just melted in together;
5) when making the metal sandwich board member embedding damping diaphragm, the wire bonding of mash welder must be used to stitch the periphery of component is coupled together completely, prevent damping diaphragm periphery to be chronically exposed in institute's environment for use, thus make the damping material in the metallic sandwich sheet of embedding damping diaphragm be closed in an independent space;
6), after spot welding processing cooling, the top and bottom of metallic sandwich sheet just link together partly, form damping metallic sandwich sheet.
2. the metallic sandwich sheet manufacture craft embedding damping diaphragm as claimed in claim 1, it is characterized in that, the metal sandwich plate structure embedding damping diaphragm in described step 1) is individual layer damping metallic plate sandwich structure, or is more than or equal to two-layer damping metallic plate sandwich structure.
3. the metallic sandwich sheet manufacture craft embedding damping diaphragm as claimed in claim 1, is characterized in that, in described step 1), every layer of damping diaphragm is perforation damping structure, or grid damping structure, or bores a hole and the combined damping structure of grid.
4. the as claimed in claim 1 metallic sandwich sheet manufacture craft embedding damping diaphragm, it is characterized in that, in described step 3), sheet metal is smooth, and sheet metal is the sheet metal of same material as required, or the sheet metal of not same material.
5. the metallic sandwich sheet manufacture craft embedding damping diaphragm as claimed in claim 1, is characterized in that, in described step 4), when adopting solder joint to connect the metal sandwich plate structure embedding damping diaphragm, uses and welds a mash welder connected.
6. the metallic sandwich sheet manufacture craft of embedding damping diaphragm according to claim 1, is characterized in that, in described step 4), when adopting bonding wire to connect the metal sandwich plate structure embedding damping diaphragm, uses the mash welder welding line and connect.
7. the metallic sandwich sheet manufacture craft embedding damping diaphragm as claimed in claim 3, it is characterized in that, spot-welding technology mould in described step 4), for the mould that perforation damping structure connects, described mould and absorption surface position are of a size of 1.1 to 1.5 times that weld rear round dot diameter, the capping that panel is thick, the line taking lower limit that panel is thin, thickness is here the thickness sum of all panels.
8. the metallic sandwich sheet manufacture craft embedding damping diaphragm as claimed in claim 3, it is characterized in that, spot-welding technology mould in described step 4), for the mould that grid damping structure connects, the size at described mould and absorption surface position is 1.1 to 1.5 times of welding position mesh spacing, the capping that panel is thick, the line taking lower limit that panel is thin, thickness is here the thickness sum of all panels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510520606.2A CN105109146B (en) | 2015-08-24 | 2015-08-24 | The metallic sandwich sheet manufacture craft of embedded damping diaphragm |
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| CN201510520606.2A CN105109146B (en) | 2015-08-24 | 2015-08-24 | The metallic sandwich sheet manufacture craft of embedded damping diaphragm |
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| CN105109146A true CN105109146A (en) | 2015-12-02 |
| CN105109146B CN105109146B (en) | 2017-11-10 |
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| CN201510520606.2A Expired - Fee Related CN105109146B (en) | 2015-08-24 | 2015-08-24 | The metallic sandwich sheet manufacture craft of embedded damping diaphragm |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273143A (en) * | 2016-09-22 | 2017-01-04 | 青岛理工大学 | The manufacturing system of a kind of embedded co-curing composite damping thin film and method |
| CN108099300A (en) * | 2017-11-28 | 2018-06-01 | 嘉峪关天源新材料有限责任公司 | A kind of welding metal shock reducing plate |
| CN110769666A (en) * | 2018-07-27 | 2020-02-07 | 广州方邦电子股份有限公司 | Electromagnetic shielding film, circuit board and preparation method of electromagnetic shielding film |
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| WO1987007872A1 (en) * | 1986-06-20 | 1987-12-30 | Nisshin Steel Co., Ltd. | Damp metal sheet |
| JPH01234235A (en) * | 1988-03-15 | 1989-09-19 | Sumitomo Metal Ind Ltd | Damping metal plate |
| CN2431112Y (en) * | 2000-06-01 | 2001-05-23 | 朱金龙 | Vibration-damping composite metal plate |
| CN101244642A (en) * | 2007-02-15 | 2008-08-20 | 洛阳双瑞金属复合材料有限公司 | Metal net plate damping composite material and method for manufacturing same |
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| WO1987007872A1 (en) * | 1986-06-20 | 1987-12-30 | Nisshin Steel Co., Ltd. | Damp metal sheet |
| JPH01234235A (en) * | 1988-03-15 | 1989-09-19 | Sumitomo Metal Ind Ltd | Damping metal plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106273143A (en) * | 2016-09-22 | 2017-01-04 | 青岛理工大学 | The manufacturing system of a kind of embedded co-curing composite damping thin film and method |
| CN106273143B (en) * | 2016-09-22 | 2019-01-11 | 青岛理工大学 | A kind of manufacturing system and method for embedded co-curing composite material damping film |
| CN108099300A (en) * | 2017-11-28 | 2018-06-01 | 嘉峪关天源新材料有限责任公司 | A kind of welding metal shock reducing plate |
| CN110769666A (en) * | 2018-07-27 | 2020-02-07 | 广州方邦电子股份有限公司 | Electromagnetic shielding film, circuit board and preparation method of electromagnetic shielding film |
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| CN105109146B (en) | 2017-11-10 |
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