CN105109146B - Manufacturing process of metal sandwich plate embedded with damping film - Google Patents
Manufacturing process of metal sandwich plate embedded with damping film Download PDFInfo
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- CN105109146B CN105109146B CN201510520606.2A CN201510520606A CN105109146B CN 105109146 B CN105109146 B CN 105109146B CN 201510520606 A CN201510520606 A CN 201510520606A CN 105109146 B CN105109146 B CN 105109146B
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- 238000013016 damping Methods 0.000 title claims abstract description 274
- 239000002184 metal Substances 0.000 title claims abstract description 127
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 127
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 71
- 238000013461 design Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000005684 electric field Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 45
- 238000005516 engineering process Methods 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 10
- 238000002309 gasification Methods 0.000 claims description 6
- 206010020843 Hyperthermia Diseases 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000036031 hyperthermia Effects 0.000 claims description 4
- 230000005518 electrochemistry Effects 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000011160 research Methods 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 40
- 238000003780 insertion Methods 0.000 description 12
- 230000037431 insertion Effects 0.000 description 12
- 239000010408 film Substances 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920013657 polymer matrix composite Polymers 0.000 description 2
- 239000011160 polymer matrix composite Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a manufacturing process of a metal sandwich plate embedded with a damping film, which comprises the following steps: 1) designing a metal sandwich plate structure embedded with a damping film, and 2) manufacturing the damping film; 3) laying a metal plate and a damping film according to design requirements; 4) adjusting the technological parameters of a spot welding machine and designing and manufacturing a proper spot welding technological die, thinning a damping film layer clamped between metal plates by the pressure of a welding point, puncturing the thinned position of the damping film layer under the action of an external electric field to generate a discharge channel to form local high temperature, burning and gasifying the thinned damping film to reduce the gap between metal layers at the thinned position of the damping layer to form a local discharge channel, and melting local metals between layer interfaces together under the action of the pressure and the high temperature; 5) and spot welding, processing and cooling to form the damping metal sandwich plate. The method lays a foundation for the research of the design theory of the anisotropic damping structure and the wide application of the metal sandwich plate shell structure embedded with the damping film.
Description
Technical field
The present invention is the crossing research field of Noise and Vibration Control and functional material, especially a kind of to use friction welding
And/or the new technology of mash welder welding makes the metal sandwich harden structure of embedded damping diaphragm.
Background technology
Traditional metal material and structure can not meet aircraft high rigidity, the design requirement of big damping capacity.In gold
Embedded damping diaphragm just forms a kind of new damping embedded structure between metal thin plate, and it is to keep conventional metals sheet material mechanical property
On the basis of propose a kind of new construction with high damping vibration attenuation anti-acoustic capability, be a kind of to lead to two or more materials of different nature
The multiphase solid material that pad or sealing wire are combined together is crossed, is analyzed from its Nomenclature Composition and Structure of Complexes, wherein there is a phase to exist
It is to be continuously referred to as matrix such as sheet metal in layer, and another phase is isotropic visco-elastic damping material.
In the embedded co-curing perforation damping diaphragm and grid damping diaphragm composite structure of applicant's earlier application,
The connection of its damping material and matrix material mainly leans on chemical bond with co-curing reaction（I.e. chemical reaction forms IPN structures）And material
The fused connection realized between interface of physics between material, so as to which embedded co-curing damp composite material structure be made.But this
Kind structure is only limited to make polymer matrix composites, and the damping capacity that its component is improved for sheet metal is typically only capable to make
The method handled with passive damping, including free damping structure, constrained damping structure and damping insert structure, and these three methods
Post-processing is belonged to, suffers from the limitation of the factors such as physical dimension, space and weight, and is also easy in use
There is phenomena such as peeling off, coming off.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of metal sandwich of embedded damping diaphragm
Plate manufacture craft, the technique lean on pressure and high temperature of the mash welder on welding position, make the thinning opening position viscoelastic of Local Damping layer
Property material elder generation combustion gasification, while gap diminishes between also making the metal level on the thinning position of damping layer, forms shelf depreciation and leads to
Road, the localized metallic between bed boundary are just consequently flowed together, and the top and bottom of metallic sandwich sheet are just partly connected to after cooling
Together, the metal sandwich harden structure of embedded damping diaphragm is made.When paying attention to making the damping diaphragm metal sandwich board member, finally
It must use the wire bonding seam of mash welder that the periphery of component is fully connected, so that the metallic sandwich sheet of embedded damping diaphragm
In damping material be closed in an independent space, prevent damping diaphragm periphery be chronically exposed to used in environment and
Aging comes off.
To achieve the above object, the present invention uses following technical proposals：
A kind of metallic sandwich sheet manufacture craft of embedded damping diaphragm, comprises the following steps：
1）The metal sandwich harden structure of the embedded damping diaphragm of design, every layer of damping diaphragm thickness are less than 2mm；
2）Make damping diaphragm；
3）Sheet metal is laid with damping diaphragm according to design requirement；Damping diaphragm is laid in sheet metal
On, covering sheet metal is then laid, when the metal sandwich harden structure of multilayer damping diaphragm to be made, can be repeated
Process of deployment is stated, untill meeting design requirement.
4）Adjust the technological parameter of mash welder and select corresponding spot-welding technology mould, the work on pad or/and line
Skill pressure, pad or/and Wiring technology pressure when being greater than pure spot welding sheet metal；Voltage is big at pad or/and line
Spot welding voltage when pure spot welding sheet metal；By the pressure of pad, make the damping diaphragm being clipped between sheet metal
Layer is thinning, and in the presence of external electric field, the thinning position of damping diaphragm layer is breakdown, produces discharge channel, forms localized hyperthermia,
At so thinning damping diaphragm will first combustion gasification, while also become gap between the metal level on the thinning position of damping layer
It is small, shelf depreciation passage is formed, in the presence of pressure and high temperature, the localized metallic between bed boundary is just consequently flowed together；
5）After spot welding processing cooling, the top and bottom of metallic sandwich sheet just partly link together, and form damping metal clip
Laminate.
The step 1）The metal sandwich harden structure of middle embedded damping diaphragm is that individual layer damps metallic plate sandwich structure, or
It is greater than the damping metallic plate sandwich structure equal to two layers.
The step 1）In every layer of damping diaphragm can be perforation damping structure, or grid damping structure, or perforation and net
The combined damping structure of lattice.
The step 3）Middle sheet metal is smooth, and sheet metal as needed is the sheet metal of same material, or
It is the sheet metal of not same material, the weaker sheet metal design of mechanical property is close to the position of neutral line, mechanical property
Stronger sheet metal is designed in the position away from neutral line, when using the sheet metal of material not of the same race, it should be noted that prevent
The corrosiveness of electrochemistry.
The step 4）In, when connecting the metal sandwich harden structure of embedded damping diaphragm using solder joint, using welding a company
The mash welder connect；
The step 4）In, when connecting the metal sandwich harden structure of embedded damping diaphragm using bonding wire, connected using line is welded
The mash welder connect.
The step 4）In spot-welding technology mould, for perforation damping structure connection mould, the mould and workpiece
The size of contact site is 1.1 to 1.5 times of round dot diameter after welding, the thick capping of panel, the thin line taking lower limit of panel, this
In thickness be all panels thickness sum.
The step 4）In spot-welding technology mould, for grid damping structure connection mould, the mould and workpiece
The size of contact site is 1.1 to 1.5 times of welding position grid spacing, the thick capping of panel, the thin line taking lower limit of panel,
Here thickness is the thickness sum of all panels.
In the present invention, first having to make the sufficiently large damping diaphragm of area, thickness can be made by oneself typically within 2 millimeters,
Ready-made big damping rubber film can also be bought, but the curing temperature of the damping diaphragm will be according to reality with cure time in use
Border application requirement is selected, and general long-term use of environment temperature will be far below the curing temperature of damping material, be damped after vulcanization thin
The peak value and use temperature range of the kinetic curve of its material of film must be broad, and the peak point corresponding temperature of kinetic curve should
It is the commonly used environment temperature of component, so by the pad or/and sealing wire of riveting or/and mash welder by damping diaphragm
The sheet metal of both sides connects, and turns into damping metallic sandwich sheet, total is had higher damping capacity.
The metallic sandwich sheet of the insertion damping diaphragm of design can be individual layer damping metallic plate sandwich structure or more
Layer damping metallic plate sandwich structure, but every layer of damping material film can not design it is too thick, typically within the scope of 2 millimeters, and
And multilayer damping structure is higher than the fissipation factor of individual layer damping structure in the case of same structure.In order to prevent continuous damping from reducing
Overall structure rigidity, every layer of damping can be designed to that damping structure of perforating, grid damping structure, or perforation and the combination of grid hinder
Buddhist nun's structure, it so can be achieved with increasing substantially the purpose of structural damping in the case where seldom reducing the rigidity of structure.Pay attention to system
When making the damping diaphragm metal sandwich board member, it must finally use the wire bonding seam of mash welder that the periphery of component has been fully connected
Come, so that the damping material in the metallic sandwich sheet of embedded damping diaphragm is closed in an independent space, prevent from damping
Film periphery is chronically exposed in institute's use environment and aging comes off.
The link position of its secondary reasonable design damping metallic sandwich sheet is punch position, is adjusted by link position single
The area of individual damping fin, length-width ratio, the spacing between arrangement mode, and damping diaphragm small pieces, make whole metal sandwich hardened
Structure has different damping capacities in a different direction, realizes the anisotropic of structural damping performance, specifically damps metal sandwich
The link position reference of plate《Embedded co-curing perforation damping diaphragm composite structure and its making, Application No.
201410257835.5》With apply for a patent《Embedded co-curing grid damp composite material structure and its manufacture craft, application
Number be 201410257832.1》, punch position and/or grid position here are exactly the link position for damping metallic sandwich sheet,
The combination type of attachment of punch position and grid position can certainly be used.
When selecting mash welder, if the link position of damping metallic sandwich sheet is designed to type of attachment of perforating, just use
Spot-welding technology；If the link position of damping metallic sandwich sheet is designed to Mesh connection form, the wire bonding work of mash welder is just used
Skill；If damping metallic sandwich sheet link position be designed to a little or/and line combination type of attachment；Wire bonding work is just respectively adopted
Skill or/and spot-welding technology make the damping fin of the damping metallic sandwich sheet after welding turn into perforation damping and grid damping or they
Combining form.
Due to the non-conductive or weak inductive energy of damping material, weld locations when almost directly having blocked mash welder work
Circuit turn-on, so in pad or/and line, use the technological parameter of mash welder and the spot welding technique of sheet metal to join
Number is different, shows the operation pressure on this patent pad or/and line, is greater than pad during pure spot welding sheet metal
Or/and Wiring technology pressure；Spot welding voltage when voltage is greater than pure spot welding sheet metal at this patent pad or/and line.
By the pressure of pad, make the damping layer that is clipped between sheet metal thinning, in the presence of external electric field, local meeting（Resistance
The thinning position of Buddhist nun's layer）It is breakdown, discharge channel is produced, localized hyperthermia is formed, will first be burnt at so thinning damping diaphragm
Gasification, while gap diminishes between also making the metal level on the thinning position of damping layer, shelf depreciation passage is formed, in pressure and height
In the presence of temperature, the localized metallic between bed boundary is just consequently flowed together, and the top and bottom of metallic sandwich sheet are just local after cooling
Ground links together, and forms damping metallic sandwich sheet.Integrally-built dynamic performance can be improved as metal sandwiched damping board,
Substantial amounts of bibliography research conclusion has been proven that this point.
The present invention is earlier application patent on the basis of original embedded perforation damping structure and grid damping structure《It is embedded
Formula co-curing perforation damping diaphragm composite structure and its manufacture craft》, Application No. 201410257835.5 and first Shen
Please patent《Embedded co-curing grid damp composite material structure and its manufacture craft》, Application No. 201410257832.1
On the basis of, the mode that damping structure is combined that grid is damped and perforated is proposed, a kind of complexity of formation is mixed to wear metal damping interlayer
The new construction of plate, increase the design parameter of structural damping anisotropic, more designs are provided for the Accurate Design of structural damping
Variable, the distribution form of specific damping block can refer to the first two patent, as long as rational combination, can just be formed a variety of has specific resistance
The metal sandwiched damping board of Buddhist nun's function.
Damping diaphragm in the present invention is prior art, the Application No. of its structure and applicant's earlier application
201410257835.5 with it is completely identical in structure in 201410257832.1 damp composite material, will not be repeated here.
But the present invention has 2 main distinctions with original application patent：One is the connection shape of damping material and matrix material
Formula；The second is the manufacture craft of total.The embedded co-curing perforation damping diaphragm and grid damping diaphragm above applied
In composite structure, the connection of its damping material and matrix material mainly leans on chemical bond with co-curing reaction（Chemically react
Form IPN structures）And the fused connection realized between interface of physics between material, embedded co-curing damping composite wood is made
Expect structure, be only applicable to polymer matrix composites, the metal sandwich harden structure of embedded damping diaphragm can not be made, gold can not be improved
Belong to the dynamic performance of sheet material.And pressure and high temperature of the present invention mainly by mash welder on welding position, make Local Damping layer
Thinning opening position viscoelastic material elder generation combustion gasification, while gap diminishes between also making the metal level on the thinning position of damping layer,
Shelf depreciation passage is formed, the localized metallic between bed boundary is just consequently flowed together, the top and bottom of metallic sandwich sheet after cooling
Just partly link together, the metal sandwich harden structure of embedded damping diaphragm is made, with traditional free damping structure, constraint
Damping structure is compared with damping insert structure, has the advantages that dynamic performance height, not aging come off.
The present invention embedded damping diaphragm between sheet metal just forms a kind of new damping embedded structure, and it is to keep passing
System sheet metal mechanical property on the basis of propose a kind of new construction with high damping vibration attenuation anti-acoustic capability, be one kind by two kinds with
The multiphase solid material that upper material of different nature is combined together by pad or sealing wire, from its Nomenclature Composition and Structure of Complexes
Analysis, wherein it is continuously to be referred to as matrix such as sheet metal in layer to have a phase, and another phase is isotropic viscoplasticity resistance
Damping material, designer is arranged as required to pad or line position and to penetrate viscoelastic damping by pad or line continuously thin
Film connects the metal above and below it.Its matrix phase and visco-elastic damping material play coordinative role in performance, so as to reach
The purpose of sheet metal damping is significantly increased, obtains the comprehensive mechanical property that homogenous material hardly matches.Pay attention to making and be somebody's turn to do
During damping diaphragm metal sandwich board member, it must finally use the wire bonding seam of mash welder that the periphery of component is fully connected,
Damping diaphragm periphery is prevented to be chronically exposed in institute's use environment, this impedance bundary knot in advance compared with traditional damping form
Structure is embedded in inside matrix material, has that vibration insulation and noise reduction performance is good, do not fall off, be anti-aging, impact resistance, antifatigue etc. excellent
Point, therefore this material structure replaces original sheet metal in Aeronautics and Astronautics, vehicle, ship, automobile, bullet train, machine
The industry such as bed, switch, electronics, computer has wide application prospect.
Brief description of the drawings
The metal sandwich structure that Fig. 1 insertions continuously damp（Before spot welding）Figure；
The metal sandwich structure that Fig. 2 insertions multilayer continuously damps（Before spot welding）Figure；
The metal sandwich structure figure of Fig. 3 insertion perforation dampings；
The metal sandwich structure figure of Fig. 4 insertion grid dampings；
The metal sandwich structure figure of Fig. 5 insertion multilayer perforation dampings；
The metal sandwich structure figure of Fig. 6 insertion multi-layer net dampings；
Grid damping fin distribution mode figure after the spot welding machine of Fig. 7 lines connection, wherein Fig. 7 a are in-line arrangement formula, and Fig. 7 b are
Bifurcated arranges formula, and Fig. 7 c arrange formula for non-middle bifurcated；
Damping material in-line arrangement perforation distributions mode figure after Fig. 8 spot welding machines；
Bifurcated arranges perforation distributions mode figure in damping material after Fig. 9 spot welding machines；
The non-middle bifurcated row perforation distributions mode figure of damping material after Figure 10 spot welding machines；
The combining form figure of in-line arrangement perforation and grid damping after Figure 11 spot welding machines；
Figure 12 spot welding machines back vent row perforation and the combining form figure of grid damping；
The combining form figure of perforation and the damping of in-line arrangement square net after Figure 13 spot welding machines；
The combining form figure of perforation and the damping of in-line arrangement Rectangular grid after Figure 14 spot welding machines；
The combining form figure of platoon leader's square net damping is perforated and pitched after Figure 15 spot welding machines；
The fabrication processing figure of the metal sandwich harden structure of Figure 16 insertion damping diaphragms；
Figure 17 welds the mash welder of line connection；
Figure 18 welds a mash welder for connection；
Figure 19 mash welders weld schematic diagram
Metal skin plate on wherein 1., 2. damping diaphragms, 3. times metal skin plates, 4. intermetallic metal skin panels, 5. points
Wire bonding slit die on welding machine has, the spot welding mould on 6. mash welders.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
The present invention actually solves three problems：It is proposed a kind of several different perforation of suitable mash welder processing, grid
Damping or perforation and grid hybrid multilayer or individual layer damping metal sandwich harden structure, exploring will be vulcanized using spot-welding technology
Viscoelastic damping film is embedded among sheet metal, and the metal sandwich harden structure of embedded damping diaphragm is made, develops a set of
The spot-welding technology of the metal sandwich harden structure of embedded damping diaphragm is made, 1-Figure 19 and embodiment are to this hair below in conjunction with the accompanying drawings
It is bright to be described further.
The metal sandwich harden structure of embedded damping diaphragm is a kind of New Damping processing structure, concrete structure such as Fig. 1 to Fig. 6
Shown, several damping fin distribution modes proposed by the present invention are as shown in Fig. 7 to Figure 15 here, the different distributions side of damping diaphragm piece
Formula, the damping capacity of this spline structure is also different, and its manufacture craft also has certain difference.Figure 16 is the stream of manufacture craft
Journey, Figure 17 and Figure 18 are that the mash welder for welding line connection is a weld through machine Fundamentals of Welding figure with welding a mash welder being connected, Figure 19.
First have to design the metal sandwich harden structure of embedded damping diaphragm, can be individual layer damping metallic plate sandwich knot
Structure or multilayer damping metallic plate sandwich structure, every layer of damping material film can not design it is too thick, typically at 2 millimeters
Within the scope of, and multilayer damping structure is higher than the fissipation factor of individual layer damping structure in the case of same structure；In order to prevent
Continuous damping reduces overall structure rigidity, every layer of damping can be designed to damping structure of perforating, grid damping structure, or perforation with
The combination of dampings structure of grid, it so can be achieved with increasing substantially structural damping in the case where seldom reducing the rigidity of structure
Purpose, when making damping diaphragm metal sandwich board member, it must finally use the wire bonding seam of mash welder that the periphery of component is complete
Connect, prevent damping diaphragm periphery to be chronically exposed in institute's use environment, it is this prior compared with traditional damping form
Impedance bundary structure is embedded in inside matrix material, has that vibration insulation and noise reduction performance is good, do not fall off, be anti-aging, impact resistance, anti-
The advantages that tired.
In manufacture craft, first have to make the sufficiently large damping diaphragm of area, thickness, can be with typically within 2 millimeters
Self-control, ready-made big damping rubber film can also be bought, but the curing temperature of the damping diaphragm will with cure time in use
Select based on the actual application requirements, general long-term use of environment temperature will be far below the curing temperature of damping material, after vulcanization
The peak value and use temperature range of the kinetic curve of its material of damping diaphragm must be broad, and the peak point of kinetic curve is corresponding
Temperature should be the commonly used environment temperature of component, will so be hindered by the pad or/and sealing wire of riveting or/and mash welder
The sheet metal of Buddhist nun's film both sides connects, and turns into damping metallic sandwich sheet, total is had higher damping capacity.
Then damping diaphragm being laid on the lower thin plate of metal skin 3, embedded damping diaphragm 2 is usually individual layer, then
The thin plate of metal skin 1 is laid, the metal sandwich structure of the continuous damping diaphragm of insertion as shown in Fig. 1 is made（Before spot welding）；
If embedded damping diaphragm is multilayer, the metal sandwich structure of the continuous damping diaphragm of insertion multilayer shown in Fig. 2 is just made
（Before spot welding）, pay attention to being not bound with power between damping diaphragm here and sheet metal, to pass through grid and/or perforation damping knot
Structure realizes the connection between sheet metal.
The single or multiple lift as shown in Fig. 1 and shown in Fig. 2 is continuously finally damped into metal sandwich structure semi-finished product and is placed on figure
The manufacture craft of the metal sandwich harden structure of embedded damping diaphragm is realized on mash welder shown in 17 and Figure 18.In selection mash welder
When, 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 using point welder
Skill（It is as shown in figure 18 using equipment）；If the link position of damping metallic sandwich sheet is designed to that the grid shown in Fig. 4 and Fig. 6 connects
Form is connect, just uses the wire bonding technique of mash welder（It is as shown in figure 17 using equipment）；If damp the connection position of metallic sandwich sheet
Put be designed to a little or/and line combination type of attachment, wire bonding technique or/and spot-welding technology, which is just respectively adopted, makes the damping after welding
The damping fin of metallic sandwich sheet turns into perforation damping and grid damping or combinations thereof form.
This patent gives the metal sandwich harden structure of a variety of embedded damping diaphragms, and their main distinction has at 2 points：Its
When the quantity of damping layer, the second is the link position and its type of attachment of every layer of damping fin.Individual layer damping diaphragm during design
Thickness can not be too thick, does not exceed 2mm typically, and blocked up damping layer can seriously reduce the rigidity of structure, and should try one's best during design use
Multi-layer thin damping Rotating fields replace thicker single damping Rotating fields, that is to say, that are hindered as far as possible using the multi-layer thin shown in Fig. 5 and Fig. 6
Buddhist nun's structure, less with Fig. 3 and Fig. 4 single monolayer thick damping structure, so in the case where seldom reducing the rigidity of structure, improve structure
Damping capacity.There are many kinds as the link position and its type of attachment of every layer of damping fin, mainly there is 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 includes a) in-line arrangement formula as shown in Figure 7, b）Middle bifurcated row formula, c）Non- middle three kinds of formula of bifurcated row；
The arrangement mode of perforation structure middle punch position equally includes three kinds of arrangement modes shown in Fig. 8, Fig. 9 and Figure 10；Perforation and grid
The combining form of damping is as shown in Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15, certainly also other combining forms, here just not
Illustrated one by one with figure.
Due to the non-conductive or weak inductive energy of damping material, weld locations when almost directly having blocked mash welder work
Circuit turn-on, so in pad or/and line, use the technological parameter of mash welder and the spot welding technique of sheet metal to join
Number is different, shows the operation pressure on this patent pad or/and line, is greater than pad during pure spot welding sheet metal
Or/and Wiring technology pressure；Spot welding voltage when voltage is greater than pure spot welding sheet metal at this patent pad or/and line.
By the pressure of pad, make the damping layer that is clipped between sheet metal thinning, in the presence of external electric field, local meeting（Resistance
The thinning position of Buddhist nun's layer）It is breakdown, discharge channel is produced, localized hyperthermia is formed, will first be burnt at so thinning damping diaphragm
Gasification, while gap diminishes between also making the metal level on the thinning position of damping layer, shelf depreciation passage is formed, in pressure and height
In the presence of temperature, the localized metallic between bed boundary is just consequently flowed together, specific as shown in figure 19, metallic sandwich sheet after cooling
Top and bottom just partly link together, formed damping metallic sandwich sheet, pays attention to making the damping diaphragm metallic sandwich sheet structure
During part, it must finally use the wire bonding seam of mash welder that the periphery of component is fully connected, prevent that damping diaphragm periphery is long-term
In institute's use environment and aging comes off.
In specific implementation, the present invention uses spot-welding technology, mainly in four steps, including：Design damping structure is simultaneously made
Make damping diaphragm, sheet metal is laid with damping diaphragm according to design requirement, the technological parameter of mash welder is adjusted and sets
Meter makes suitable spot-welding technology mould（If the metal sandwich harden structure of the embedded damping diaphragm of solder joint connection, just using figure
A mash welder for connection is welded shown in 18；If the metal sandwich harden structure of the embedded damping diaphragm of bonding wire connection, just using figure
The mash welder of line connection is welded shown in 17）And edge sealing.Just turn into the metallic sandwich sheet of embedded damping diaphragm after spot welding processing cooling
Structure.Specifically it is noted that following item：
Firstth, design damping structure and make damping diaphragm, should be according to the metal sandwich of required insertion damping diaphragm
Performance and environment temperature the selection damping material of harden structure（As fissipation factor size and use environment temperature it is high low
Parameter）, design damping layer the number of plies, each layer insertion size of damping fin, the size and arrangement mode of spacing carry out customized or self-control
Damping diaphragm.The curing temperature of damping material will be selected based on the actual application requirements with cure time, general long-term use of ring
Border temperature will be far below the curing temperature of damping material, the peak value of the kinetic curve of its material of damping diaphragm and use after vulcanization
Temperature range must be broad, and the peak point corresponding temperature of kinetic curve should be the commonly used environment temperature of component.
Secondth, sheet metal and damping diaphragm are laid according to design requirement, the sheet metal used is smooth, root
According to needing sheet metal to be the sheet metal of same material or the sheet metal of non-same material, General Mechanics
The weaker sheet metal of performance should design should design close to the position of neutral line, the stronger sheet metal of General Mechanics performance
Position away from neutral line, when using the sheet metal of material not of the same race, it should be noted that prevent the corrosiveness of electrochemistry.
3rd, adjust the technological parameter of mash welder using suitable spot welding mould, due to the non-conductive of damping material or
Weak inductive energy, the circuit turn-on of weld locations when almost directly having blocked mash welder work, so in pad or/and line
When, the use of the technological parameter of mash welder from the spot welding technological parameter of sheet metal is different, show this patent pad or/
With the operation pressure on line, pad or/and Wiring technology pressure when being greater than pure spot welding sheet metal；This patent pad
Or/and the spot welding voltage at line when voltage is greater than pure spot welding sheet metal.Being spot welded the mould used will hinder according to embedded
Connection is determined in the metal sandwich harden structure of Buddhist nun's film, for the mould of perforation structure connection, concrete structure such as Figure 17 and
In Figure 18 5 and 6 shown in, what mould here can carry before mash welder dispatches from the factory, be existing equipment, can also be according to point
The size oneself that round dot diameter or grid spacing are welded in Welding determines, as long as mould and the chi of workpiece contact portion position during design
Very little is weld round dot diameter or grid spacing 1.1 to 1.5 times, the thick capping of panel, the thin line taking lower limit of panel, here
Thickness is the thickness sum of all panels.
4th, edge sealing, when making the metal sandwich board member of embedded damping diaphragm, it is necessary to stitched using the wire bonding of mash welder
The periphery of component is fully connected, prevents damping diaphragm periphery to be chronically exposed in institute's use environment, so that embedded resistance
Damping material in the metallic sandwich sheet of Buddhist nun's film is closed in an independent space, this compared with traditional damping form
Prior impedance bundary structure is that closing is embedded in inside matrix material, have vibration insulation and noise reduction performance is good, do not fall off, be anti-aging,
Impact resistance, it is antifatigue the advantages that.
After so being processed according to Figure 19, cooling is formed being embedded in the metal sandwich harden structure of damping diaphragm.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1. a kind of aircraft metallic sandwich sheet manufacture craft of embedded vulcanized viscoelastic damping film, it is characterized in that,
Comprise the following steps：
1）The metal sandwich harden structure of the embedded damping diaphragm of design, every layer of damping diaphragm thickness are less than 2mm；
Every layer of damping diaphragm is perforation damping structure, or grid damping structure, or perforation and the combined damping structure of grid；
The arrangement mode of grid damping structure includes in-line arrangement formula, middle bifurcated row's formula and non-middle bifurcated row formula；
Perforate damping structure middle punch position arrangement mode include in-line arrangement perforation distributions, middle bifurcated row's perforation distributions and it is non-in point
Fork row's perforation distributions；
The combining form of perforation and grid damping includes combination, fork row perforation and the grid damping of in-line arrangement perforation and grid damping
Combination, perforation and the fork row of combination, the combination of perforation and the damping of in-line arrangement square net, perforation and the damping of in-line arrangement Rectangular grid
The combination of Rectangular grid damping；
2）Making or customized damping diaphragm；
3）Sheet metal is laid with damping diaphragm according to design requirement；Damping diaphragm is laid on sheet metal, so
After lay covering sheet metal；
4）Adjust the technological parameter of mash welder and select corresponding spot-welding technology mould, the operation pressure on pad or/and line,
Pad or/and Wiring technology pressure when being greater than pure spot welding sheet metal；Voltage is greater than pure spot welding at pad or/and line
Spot welding voltage during sheet metal；By the pressure of pad, make the damping diaphragm layer that is clipped between sheet metal thinning,
In the presence of external electric field, the thinning position of damping diaphragm layer is breakdown, produces discharge channel, forms localized hyperthermia, so thinning
Damping diaphragm at will first combustion gasification, while gap diminishes between also making the metal level on the thinning position of damping layer, is formed
Shelf depreciation passage, in the presence of pressure and high temperature, the localized metallic between bed boundary is just consequently flowed together；
5）When making the metal sandwich board member of embedded damping diaphragm, it is necessary to the periphery component is stitched using the wire bonding of mash welder
It is fully connected, prevents damping diaphragm periphery to be chronically exposed in institute's use environment, so that the metal of embedded damping diaphragm
Damping material in sandwich plate is closed in an independent space；
6）After spot welding processing cooling, the top and bottom of metallic sandwich sheet just partly link together, and form damping metallic sandwich sheet.
2. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 1）The metal sandwich harden structure of middle embedded damping diaphragm is that individual layer damps metallic plate sandwich structure,
Damping metallic plate sandwich structure either more than or equal to two layers.
3. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 3）Middle sheet metal is smooth, and sheet metal as needed is the sheet metal of same material,
The either sheet metal of not same material, it should be noted that prevent the corrosiveness of electrochemistry.
4. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 4）In, when connecting the metal sandwich harden structure of embedded damping diaphragm using solder joint, using welding
The mash welder of point connection.
5. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 4）In, when connecting the metal sandwich harden structure of embedded damping diaphragm using bonding wire, using welding
The mash welder of line connection.
6. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 4）In spot-welding technology mould, for perforation damping structure connection mould, the mould with
The size of workpiece contact portion position is 1.1 to 1.5 times of round dot diameter after welding, the thick capping of panel, under the thin line taking of panel
Limit, thickness here are the thickness sums of all panels.
7. aircraft as claimed in claim 1 makes work with the metallic sandwich sheet of embedded vulcanized viscoelastic damping film
Skill, it is characterized in that, the step 4）In spot-welding technology mould, for grid damping structure connection mould, the mould with
The size of workpiece contact portion position is 1.1 to 1.5 times of welding position grid spacing, the thick capping of panel, the thin line taking of panel
Lower limit, thickness here are the thickness sums 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 | Manufacturing process of metal sandwich plate embedded with damping film |
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| CN201510520606.2A CN105109146B (en) | 2015-08-24 | 2015-08-24 | Manufacturing process of metal sandwich plate embedded with damping film |
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| CN105109146B true CN105109146B (en) | 2017-11-10 |
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| CN106273143B (en) * | 2016-09-22 | 2019-01-11 | 青岛理工大学 | Manufacturing system and method of embedded co-curing composite 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873149A (en) * | 1986-06-20 | 1989-10-10 | Nisshin Steel Co., Ltd. | Vibration-damper metal sheets |
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2015
- 2015-08-24 CN CN201510520606.2A patent/CN105109146B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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