CN106271067B - Strengthen the device and method of foil bonding strength under a kind of Laser shock loading - Google Patents
Strengthen the device and method of foil bonding strength under a kind of Laser shock loading Download PDFInfo
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- CN106271067B CN106271067B CN201610688696.0A CN201610688696A CN106271067B CN 106271067 B CN106271067 B CN 106271067B CN 201610688696 A CN201610688696 A CN 201610688696A CN 106271067 B CN106271067 B CN 106271067B
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- paper tinsel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides the device and method for strengthening foil bonding strength under a kind of Laser shock loading, including Laser shock loading system, control system, warm system, welding system, snap system and three-dimensional mobile platform system；Laser shock loading system includes condenser lens, lens carrier, lens height adjuster, speculum and pulse laser；Control system includes computer, laser controller, gas pressure regulator, warm controller and three-dimensional mobile platform controller；Warm system includes heating plate；Three-dimensional mobile platform system includes three-dimensional mobile platform and perpendicular type base；Welding system includes restraint layer, absorbed layer and workpiece；Snap system includes workpiece, cylinder, drives die device and upper/lower die；The present invention is under thermal condition, by loading laser, two layers of foil is carried out simultaneously to impact welding and clamping, enhances the bonding strength between foil；Drive die device in the present invention can drive mould in activity to move left and right, and can play self-locking action, improve operating efficiency.
Description
Technical field
The invention belongs to laser-impact welding field in machine-building and metal foil to deform interconnection technique field, especially
Being related to strengthens the device and method of foil bonding strength under a kind of Laser shock loading.
Background technology
Micro element applies more and more extensive, production in industries such as electronic product, biology, medicine equipment, precision instruments in recent years
Product are miniaturizated to a manufacturing important trend, and associated metal foil interconnection technique research seems heavy all the more
Will.Novel lightweight metal foil is with its kind, the diversity of performance, wide applicability and huge application potential, just
Played a greater and greater role for the development of human society.However, traditional metal foil interconnection technique can not meet
Growth requirement applied to the novel metal foil of micro- part.Resolve two layers of of the same race or new gold of xenogenesis applied to micro- part
Belong to the connectivity problem of foil, the Quality advance and cost for Modern Industry Products reduce significant.
The connection method of foil has much at present, including welding and riveting etc., but is all the connection of single form.Such as：Shen
Number it please propose a kind of ultra-thin sheet material pulsed laser micro rivet connection method and its special dress for 200810014018.1 Chinese patent
Put, its process is：The advance punching on one block of plate, another block of plate are pressed on the block plate, and laser action forms flexibility in upper sheet material
Punch-pin, two layers of sheet material is riveted together in the position in hole.The invention provides a kind of no rivet, it can guarantee that the sealing of plate will
The clinching method asked, but because it need to be to the advance punching of sheet material, so less efficient, and its rigid backing plate is plane, it is unfavorable
Flowed in material to both sides；In addition, the plasticity of sheet metal is relatively low under normal temperature, material flowability is poor, can cause the sheet material to be difficult
Plastic deformation, and then be difficult to be riveted together, cause the bonding strength between sheet material not high；In addition, only rivet a kind of connection
Mode, it is not high to also result in bonding strength.The Chinese patent of Application No. 201010142235.6 proposes a kind of laser spot welding
Method and laser-welded product, its process be：The position of workpiece is adjusted, is bonded the knee of workpiece, in the bending of workpiece
Place directly carries out laser spot welding.The invention can weaken is carrying on the back trace in pinpoint welding procedure caused by the workpiece, makes the workpiece or by this
The appearance that workpiece forms product is more attractive in appearance, but this processing method is, it is necessary in advance by workpiece bows, so efficiency is low；
In addition required laser energy is high, duration length, so power consumption；In addition, a kind of only connected mode of spot welding, can cause connection strong
Degree is not high.
The content of the invention
For above mentioned problem existing for the connection of sheet metal in the prior art, the invention provides increase under a kind of Laser shock loading
The device and method of strong foil bonding strength, while realize two layers of the same race or xenogenesis foil welding and clamping, this method without
Need to the advance punching on foil, it is ensured that the sealing of connecting portion, production efficiency is improved, and in this method in lower mould
There is a square groove at centre, the centre of groove has a hemisphere, is more beneficial for workpiece material and flows laterally, and snap effect is more
It is good；This method is provided with heating plate below base paper tinsel, to base paper tinsel heat, improve base foil material plasticity, be advantageous to improve foil it
Between impact weld strength, be also beneficial to welding after multiple paper tinsel and base paper tinsel in a mold material flow, and then improve foil between
Clamping intensity；After two layers of foil have passed through the connected mode of welding and two kinds of forms of clamping, bonding strength obtains dual guarantee；
In addition, whole process only needs pulse laser to carry out single-impact, required energy is smaller, saves processing cost.
The present invention is to realize above-mentioned technical purpose by following technological means, and it is strong to strengthen foil connection under a kind of Laser shock loading
The device of degree, including Laser shock loading system, control system, welding system, snap system and three-dimensional mobile platform system；
The three-dimensional mobile platform system includes L-type base and three-dimensional mobile platform；The three-dimensional mobile platform is arranged on L
Type submounts, the three-dimensional mobile platform are the L-type platform that the left side has step；
The Laser shock loading system includes condenser lens, lens carrier, lens height adjuster, speculum, pulse laser
Device；Speculum is located at the top of condenser lens, and condenser lens is connected by lens carrier with lens height adjuster, lens height
Adjuster is arranged on the side of L-type base, and positioned at laser in the light path after speculum reflects；
The control system includes computer, laser controller, gas pressure regulator and three-dimensional mobile platform controller；It is described
One end of laser controller, gas pressure regulator and three-dimensional mobile platform controller is with calculating mechatronics；The laser controlling
The device other end electrically connects with pulse laser；The gas pressure regulator other end electrically connects with cylinder；The three-dimensional mobile platform
The controller other end electrically connects with three-dimensional mobile platform；
The welding system includes absorbed layer, restraint layer height adjuster, restraint layer support and restraint layer, the restraint layer
Connected by restraint layer support with constraint layer height adjuster, restraint layer height adjuster is vertically mounted on the side of L-type base
On, the restraint layer is located at the lower section of condenser lens；
The snap system includes cylinder, drives die device, upper die and lower die；The cylinder and drive die device are arranged on three-dimensional
On the step of mobile platform left end, the lower mould is arranged on three-dimensional mobile platform right-hand member, and the upper mould is arranged on lower mould；
The upper mould includes the upper mould of activity and fixed upper mould；When the upper mould of activity and fixed upper mould close up, centre has one
Circular port, the section at circular port is semi arch；The left end of the upper mould of activity is hinged with driving die device；In the fixation on mould
There are two holes being arranged symmetrically；The centre of the lower mould has a square groove, and the centre of groove has a hemisphere, hemisphere with
It is arc transition between square groove surface, the left end of lower mould is connected with the basal sliding of mould in activity, and the right-hand member of lower mould is with consolidating
Surely upper mould is fixedly connected.
In such scheme, in addition to warm system；The warm system includes heating plate, and the heating plate is moved positioned at three-dimensional
The right-hand member of moving platform, the lower mould are located above heating plate；The control system also includes warm controller, warms controller
Both ends electrically connected respectively with computer and heating plate.
In such scheme, the drive die device is symmetrical mounting, including piston rod, upper quarter butt, lower quarter butt, upper corner block,
Lower corner block, upper stock and lower stock；
The piston rod is T-shaped, its left end and cylinders, and the upper and lower of right-hand member passes through hinge with upper quarter butt, lower quarter butt respectively
Chain is connected；The other end of upper quarter butt, the C angles with upper corner block, the C ' angles of lower corner block pass through hinge to the other end of lower quarter butt respectively
Chain is connected；The A angles of upper corner block and the A ' angles of lower corner block are all fixed by a pin in three-dimensional mobile platform, and can be around pin
Rotation；The B angles of upper corner block and the B ' angles of lower corner block are connected with upper stock left end and lower stock left end by hinge respectively；On
The right-hand member of the right-hand member of stock and lower stock is all connected by left end of the hinge respectively with mould in activity.
In such scheme, there is the guide rail that two sections being arranged symmetrically are swallow-tail form the upper mould lower surface of activity；It is described
The left end of lower mould has two dovetail grooves being engaged with upper mould guide rail, and guide rail is arranged in dovetail groove and can slided in dovetail groove
It is dynamic.
In such scheme, there are two holes being arranged symmetrically in the fixation on mould；The right-hand member of the lower mould has two with consolidating
Surely the steady pin that the hole of upper mould is engaged, steady pin can insert in the hole on fixed upper mould respectively.
Strengthen the method for foil bonding strength under a kind of Laser shock loading, comprise the following steps：
S1, multiple paper tinsel and base paper tinsel pre-processed；
S2, the lower surface that absorbed layer is plated in restraint layer, the multiple paper tinsel pre-processed in step S1 is attached to the following table of absorbed layer
Face；Base paper tinsel is placed at the center of upper mould；Regulation multiple the distance between paper tinsel and base paper tinsel；
S3, regulation warm controller so that the temperature of heating plate reaches 150~300 DEG C, then causes the temperature liter of base paper tinsel
Height, it is incubated 2~3min；
S4, regulation lens height adjuster make on the absorbed layer of Laser Focusing in step s 2, adjust spot diameter；Control
Laser single-impact, laser, which reaches, absorbs layer surface, absorbed layer surface portion produced after gasification and ionization HTHP etc. from
Daughter, outside splash expansion, its reaction force can form strong shock wave to plasma rapidly, and multiple paper tinsel is high under shock wave
Speed is struck on base paper tinsel, realizes impact welding, and multiple paper tinsel and the base paper tinsel welded together continues under shock wave, flies downwards
OK, under the constraint of upper die and lower die, and then clamping is realized, so as to complete the mistake of welding and the clamping of foil under Laser shock loading
Journey；
S5, complete under a Laser shock loading after the welding and clamping of foil, computer control pressure controller, air pressure control
Device control cylinder processed shrinks so that mould moves to left in activity, takes out the workpiece to link together；Control pressure controls computer again
Device, gas pressure regulator control cylinder stretch out so that mould moves to right in activity, when mould closes up with fixed upper mould in activity, drives mould dress
Put to form self-locking, can now remove the air pressure of pneumatic cylinder, into Laser shock loading next time under foil welding and clamping process.
In such scheme, the restraint layer is K9 glass, has heating plate below multiple paper tinsel and base paper tinsel, temperature is higher, glass
Resistant to elevated temperatures effect can be played.
In such scheme, the absorbed layer is aluminium foil.
In such scheme, the thickness of the multiple paper tinsel is 20um~40um, and the thickness of base paper tinsel is 50um~100um.
In such scheme, the multiple paper tinsel and base paper tinsel are of the same race or different metal materials.
Beneficial effects of the present invention：Compared with prior art, the present invention is carried out simultaneously by loading laser to two layers of foil
Impact welding and clamping, while the welding of two kinds of forms is realized, bonding strength has obtained dual guarantee；In addition, in warm bar
Under part, by being preheated to base paper tinsel, its plasticity is improved, the impact be advantageous between base paper tinsel and multiple paper tinsel is welded, after being also beneficial to welding
Multiple paper tinsel and base paper tinsel material flows in a mold, and then be advantageous to the clamping between foil；In addition, the drive die device in the present invention
Mould moves left and right in energy driving activity, and can play self-locking action, improves operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation for the device for strengthening foil bonding strength under the Laser shock loading of an embodiment of the present invention；
Fig. 2 is the structural representation of the middle drive die device of an embodiment of the present invention；
Fig. 3 is the constitutional diagram of the middle upper die and lower die of an embodiment of the present invention；
Fig. 4 is the explosive view of the middle upper die and lower die of an embodiment of the present invention；
Fig. 5 is the process schematic that the weld preparation of an embodiment of the present invention starts；
Fig. 6 is that the strong shock wave of an embodiment of the present invention makes to answer the welding process schematic diagram that paper tinsel strikes base paper tinsel；
Fig. 7 is that the multiple paper tinsel and base paper tinsel completion welding flight downwards of an embodiment of the present invention enters the process signal of upper mould
Figure；
Fig. 8 is that multiple paper tinsel and the base paper tinsel of an embodiment of the present invention carries out the Principle of Process figure of clamping.
In figure, 1-L type bases, 2- three-dimensional mobile platforms, 3- heating plates, mould under 4-, the upper moulds of 5-, 6- base paper tinsels, the multiple paper tinsels of 7-, 8-
Absorbed layer, 9- restraint layer height adjusters, 10- restraint layer supports, 11- restraint layers, 12- lens height adjusters, 13- lens branch
Frame, 14- condenser lenses, 15- speculums, 16- pulse lasers, 17- laser controllers, 18- computers, 19- gas pressure regulators,
20- warms controller, 21- three-dimensional mobile platform controllers, 22- cylinders, and 23- drives die device, mould in 24- activities, is grown on 25-
Bar, the upper corner blocks of 26-, the upper quarter butts of 27-, 28- piston rods, quarter butt under 29-, corner block under 30-, stock under 31-, in 32- fixations
Mould, 33- shock waves.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
It is a kind of embodiment for the device for strengthening foil bonding strength under Laser shock loading of the present invention as shown in Figure 1,
Strengthening the device of foil bonding strength under the Laser shock loading includes Laser shock loading system, control system, warm system, welding system
System, snap system and three-dimensional mobile platform system.
The three-dimensional mobile platform system includes L-type base 1 and three-dimensional mobile platform 2；The three-dimensional mobile platform 2 is installed
On L-type base 1, the three-dimensional mobile platform 2 is L-type.
The Laser shock loading system includes condenser lens 14, lens carrier 13, lens height adjuster 12, the and of speculum 15
Pulse laser 16；Speculum 15 is located at the top of condenser lens 14, and condenser lens 14 passes through lens carrier 13 and lens height
Adjuster 12 is connected, and lens height adjuster 12 is arranged on the side of L-type base 1, and is reflected positioned at laser through speculum 15
In light path afterwards；
The control system includes computer 18, laser controller 17, gas pressure regulator 19, warm controller 20 and three-dimensional
Mobile platform controller 21；The laser controller 17, gas pressure regulator 19, warm controller 20, three-dimensional mobile platform control
Device 21 electrically connects with computer 18；The laser controller 17 electrically connects with pulse laser 16, for controlling pulse laser
The working condition of device 16；The gas pressure regulator 19 electrically connects with cylinder 22, for controlling the flexible of cylinder 22；The warm control
Device 20 processed electrically connects with heating plate 3, for controlling the heating-up temperature of heating plate 3；The three-dimensional mobile platform controller 21 and three
Dimension mobile platform 2 electrically connects, for controlling the movement of three-dimensional mobile platform 2.
The warm system includes heating plate 3, for being preheated to base paper tinsel 6.The heating plate 3 is positioned at three-dimensional mobile flat
The right-hand member of platform 2, the step of the left end of three-dimensional mobile platform 2 are used for supporting cylinder 22 and drive die device 23.
The welding system is used for the impact welding to multiple paper tinsel 7 and base paper tinsel 6, including absorbed layer 8, restraint layer height adjuster
9th, restraint layer support 10 and restraint layer 11；The restraint layer 11 is connected by restraint layer support 10 and constraint layer height adjuster 9,
Restraint layer height adjuster 9 is vertically mounted on the side of L-type base 1, and the restraint layer 11 is located under condenser lens 14
Side.Multiple paper tinsel 7 is attached to the lower surface of absorbed layer 8, adjusts multiple paper tinsel 7 and base paper tinsel 6 indirectly by adjusting restraint layer height adjuster 9
The distance between.
The snap system is used to carry out the multiple paper tinsel 7 and base paper tinsel 6 that weld together clamping, including cylinder 22, drive mould dress
23, upper mould 5 and lower mould 4 are put, the cylinder 22 and drive die device 23 are arranged on the step of the left end of three-dimensional mobile platform 2, described
Lower mould 4 is arranged in heating plate 3, and the upper mould 5 is arranged on lower mould 4, and base paper tinsel 6 is placed at the center of mould 5.
As shown in Fig. 2 the drive die device 23 is symmetrical mounting, including piston rod 28, upper quarter butt 27, lower quarter butt 29, on
Corner block 26, lower corner block 30, upper stock 25 and lower stock 31.When piston rod 28 moves to right, mould 24 is to fixation in drive activity
Upper mould 32 moves, and when mould 24 in activity and fixed upper mould 32 close up, the AB of upper corner block 26 is in the A ' B ' of, lower corner block 30
It is conllinear with upper stock 25, lower stock 31 respectively, self-locking is formed, can now remove the air pressure of pneumatic cylinder；The piston rod 28 is T
Type, its left end are connected with cylinder 22, and the upper and lower of right-hand member is connected with upper quarter butt 27, lower quarter butt 29 by hinge respectively；Upper quarter butt 27
The other end, the C angles with upper corner block 26, the C ' angles of lower corner block 30 are connected the other end of lower quarter butt 29 by hinge respectively；
The A angles of upper corner block 26 and the A ' angles of lower corner block 30 are all fixed by a pin in three-dimensional mobile platform 2, and can be revolved around pin
Turn；The B angles of upper corner block 26 and the B ' angles of lower corner block 30 pass through hinge with the upper left end of stock 25 and the lower left end of stock 31 respectively
It is connected；The right-hand member of the right-hand member of upper stock 25 and lower stock 31 is all connected by hinge with the left end of the upper mould 24 of activity.
As shown in Figure 3 and Figure 4, the upper mould 5 includes the upper mould 24 of activity and fixed upper mould 32.When mould 24 in activity and fix
When upper mould 32 closes up, there is a circular port centre, and the section at circular port is semi arch；The left end edge of the upper mould 24 of activity has
Two pans being arranged symmetrically, the right-hand member with upper stock 25 and lower stock 31 is connected respectively, and its lower surface has two symmetrically
The section of arrangement is the guide rail of swallow-tail form；There are two holes being arranged symmetrically in the fixation on mould 32；The centre of the lower mould 4
There is a square groove, the centre of groove has a hemisphere, is arc transition between hemisphere and square groove surface, lower mould 4
Left end has two dovetail grooves being engaged with the upper guide rail of mould 24, and the right-hand member of lower mould 4 has the hole matching of two and fixed upper mould 32
The steady pin of conjunction.
The present invention also provides a kind of method for strengthening foil bonding strength under Laser shock loading, specifically includes following steps：
S1, with coarse sandpaper multiple paper tinsel 7 and the surface of base paper tinsel 6 are polished, remove the oxide layer on surface, then use fine sandpaper again
To its sanding and polishing, finally with alcohol washes surface so that the surface cleaning of multiple paper tinsel 7 and base paper tinsel 6 is smooth；The thickness of the multiple paper tinsel 7
Spend for 20um~40um, the thickness of base paper tinsel 6 is 50um~100um；The multiple paper tinsel 7 and base paper tinsel 6 are of the same race or different metal materials；
S2, K9 glass thick 3mm is regard as restraint layer 11, in the lower surface of restraint layer 11 plating last layer aluminium foil, as suction
Layer 8 is received, the multiple paper tinsel 7 pre-processed in step S1 is attached to the lower surface of absorbed layer 8；Base paper tinsel 6 is placed at the center of upper mould 5；About
Beam layer 11, restraint layer support 10 are connected and are arranged on L-type base 1 with the constraint three of layer height adjuster 9, are constrained by adjusting
Layer height adjuster 9 adjusts the distance between multiple paper tinsel 7 and base paper tinsel 6 indirectly；
S3, regulation warm controller 20 so that the temperature of heating plate 3 reaches 150~300 DEG C, then causes the temperature of base paper tinsel 6
Degree rise, is incubated 2~3min；
S4, the regulation height adjuster 12 of condenser lens 14 make on the absorbed layer 8 of Laser Focusing in step s 2, adjust hot spot
Diameter；Laser single-impact is controlled, laser reaches the surface of absorbed layer 8, and the surface portion of absorbed layer 8 is produced high after gasification and ionization
Warm high pressure plasma, outside splash expansion, its reaction force can form strong shock wave 33 to plasma rapidly, and multiple paper tinsel 7 is rushing
Hit under the effect of ripple 33, on high-speed impact to base paper tinsel 6, realize impact welding, the multiple paper tinsel 7 and base paper tinsel 6 welded together continues rushing
Hit under the effect of ripple 33, flight, under the constraint of upper mould 5 and lower mould 4, and then realizes clamping, so as to complete under Laser shock loading downwards
The process of welding and the clamping of foil；
S5, complete under a Laser shock loading after the welding and clamping of foil, the control pressure controller 19 of computer 18, gas
Pressure controller 19 controls cylinder 22 to shrink so that mould 24 moves to left in activity, takes out the workpiece to link together；Computer 18 is again
Control pressure controller 19, gas pressure regulator 19 control cylinder 22 to stretch out so that mould 24 moves to right in activity, when the He of mould 24 in activity
When mould 32 closes up in fixation, drive die device 23 and form self-locking, can now remove the air pressure of pneumatic cylinder；Hence into laser next time
The process of welding and the clamping of the lower foil of loading.
Fig. 5, Fig. 6, Fig. 7 are the welding process of foil under Laser shock loading, and its process is as follows：
Laser single-impact is controlled, laser reaches the surface of absorbed layer 8, and the surface portion of absorbed layer 8 is produced after gasification and ionization
Raw HTHP plasma, outside splash expansion, its reaction force can form strong shock wave 33 to plasma rapidly, multiple paper tinsel 7
Under the effect of shock wave 33, on high-speed impact to base paper tinsel 6, impact welding is realized.
Fig. 7, Fig. 8 are the clamping process of foil under Laser shock loading, and its process is as follows：
The multiple paper tinsel 7 and base paper tinsel 6 welded together continues in the case where shock wave 33 acts on, downwards flight, in upper mould 5 and lower mould 4
Constraint under, and then clamping is realized, so as to complete the process of welding and the clamping of foil under Laser shock loading.
The embodiment is preferred embodiment of the invention, but the present invention is not limited to above-mentioned embodiment, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification belongs to protection scope of the present invention.
Claims (9)
1. strengthen the device of foil bonding strength under a kind of Laser shock loading, it is characterised in that including Laser shock loading system, control system
System, welding system, snap system and three-dimensional mobile platform system；
The three-dimensional mobile platform system includes L-type base (1) and three-dimensional mobile platform (2)；Three-dimensional mobile platform (2) peace
Mounted in L-type base (1) above, the three-dimensional mobile platform (2) is the L-type platform that the left side has step；
The Laser shock loading system includes condenser lens (14), lens carrier (13), lens height adjuster (12), speculum
(15), pulse laser (16)；Speculum (15) is located at the top of condenser lens (14), and condenser lens (14) passes through lens carrier
(13) it is connected with lens height adjuster (12), lens height adjuster (12) is arranged on the side of L-type base (1), and position
In laser in the light path after speculum (15) reflection；
The control system includes computer (18), laser controller (17), gas pressure regulator (19) and three-dimensional mobile platform control
Device (21) processed；One end of the laser controller (17), gas pressure regulator (19) and three-dimensional mobile platform controller (21) with
Computer (18) electrically connects；Laser controller (17) other end electrically connects with pulse laser (16)；The pressure control
Device (19) other end electrically connects with cylinder (22)；Three-dimensional mobile platform controller (21) other end and three-dimensional mobile platform
(2) electrically connect；
The welding system includes absorbed layer (8), restraint layer height adjuster (9), restraint layer support (10) and restraint layer (11),
The restraint layer (11) is connected by restraint layer support (10) and constraint layer height adjuster (9), restraint layer height adjuster (9)
It is vertically mounted on the side of L-type base (1), the restraint layer (11) is located at the lower section of condenser lens (14)；
The snap system includes cylinder (22), drives die device (23), upper mould (5) and lower mould (4)；The cylinder (22) and drive mould
Device (23) is arranged on the step of three-dimensional mobile platform (2) left end, and it is right that the lower mould (4) is arranged on three-dimensional mobile platform (2)
On end, the upper mould (5) is arranged on lower mould (4)；
The upper mould (5) includes the upper mould (24) of activity and fixed upper mould (32)；The upper mould (24) of activity and fixed upper mould (32)
When closing up, there is a circular port centre, and the section at circular port is semi arch；The left end of the upper mould (24) of activity is with driving die device
(23) it is hinged；There are two holes being arranged symmetrically in the fixation on mould (32)；The centre of the lower mould (4) has a square
Groove, the centre of groove have a hemisphere, are arc transition between hemisphere and square groove surface, the left end of lower mould (4) and work
The basal sliding connection of dynamic upper mould (24), the right-hand member of lower mould (4) are fixedly connected with fixed upper mould (32)；
The drive die device (23) is symmetrical mounting, including piston rod (28), upper quarter butt (27), lower quarter butt (29), upper corner block
(26), lower corner block (30), upper stock (25) and lower stock (31)；
To be T-shaped, its left end is connected the piston rod (28) with cylinder (22), right-hand member it is upper and lower respectively with upper quarter butt (27), under it is short
Bar (29) is connected by hinge；The other end of upper quarter butt (27), the other end of lower quarter butt (29) C with upper corner block (26) respectively
Angle, the C ' angles of lower corner block (30) are connected by hinge；The A angles of upper corner block (26) and the A ' angles of lower corner block (30) all pass through
Pin is fixed in three-dimensional mobile platform (2), and can be rotated around pin；The B angles of upper corner block (26) and lower corner block (30)
B ' angles are connected with upper stock (25) left end and lower stock (31) left end by hinge respectively；The right-hand member and lower stock of upper stock (25)
(31) right-hand member is all connected by left end of the hinge respectively with mould in activity (24).
2. strengthen the device of foil bonding strength under a kind of Laser shock loading according to claim 1, it is characterised in that also wrap
Include warm system；The warm system includes heating plate (3), and the heating plate (3) is located at the right-hand member of three-dimensional mobile platform (2),
The lower mould (4) is located above heating plate (3)；The control system also includes warm controller (20), warms controller
(20) both ends electrically connect with computer (18) and heating plate (3) respectively.
3. strengthen the device of foil bonding strength under a kind of Laser shock loading according to claim 1, it is characterised in that described
There is the guide rail that two sections being arranged symmetrically are swallow-tail form mould (24) lower surface in activity；The left end of the lower mould (4) has two
The dovetail groove being engaged with upper mould (24) guide rail, guide rail are arranged in dovetail groove and can slided in dovetail groove.
4. strengthen the device of foil bonding strength under a kind of Laser shock loading according to claim 1, it is characterised in that described
There are two holes being arranged symmetrically in fixation on mould (32)；The right-hand member of the lower mould (4) has two hole phases with fixed upper mould (32)
The steady pin of cooperation, steady pin can insert in the hole on fixed upper mould (32) respectively.
5. a kind of foil bonding strength device of enhancing according to claim 1 strengthens foil bonding strength under Laser shock loading
Method, it is characterised in that comprise the following steps：
S1, paper tinsel (7) and base paper tinsel (6) it will be pre-processed again；
S2, the lower surface that absorbed layer (8) is plated in restraint layer (11), absorbed layer is attached to by the multiple paper tinsel (7) pre-processed in step S1
(8) lower surface；Base paper tinsel (6) is placed at the center of upper mould (5)；Regulation multiple the distance between paper tinsel (7) and base paper tinsel (6)；
S3, regulation warm controller (20) so that the temperature of heating plate (3) reaches 150~300 DEG C, then causes base paper tinsel (6)
Temperature raises, and is incubated 2~3min；
S4, regulation lens height adjuster (12) make on the absorbed layer (8) of Laser Focusing in step s 2, adjust spot diameter；
Laser single-impact is controlled, laser reaches absorbed layer (8) surface, and absorbed layer (8) surface portion is produced high after gasification and ionization
Warm high pressure plasma, outside splash expansion, its reaction force can form strong shock wave (33) to plasma rapidly, multiple paper tinsel (7)
Under shock wave (33) effect, on high-speed impact to base paper tinsel (6), impact welding, the multiple paper tinsel (7) and base paper tinsel welded together are realized
(6) continuing under shock wave (33) effect, flight, under the constraint of upper mould (5) and lower mould (4), and then realizes clamping downwards, from
And complete the process of welding and the clamping of foil under Laser shock loading；
S5, complete under a Laser shock loading after the welding and clamping of foil, computer (18) control pressure controller (19), gas
Pressure controller (19) control cylinder (22) shrinks so that mould (24) moves to left in activity, takes out the workpiece to link together；Computer
(18) control pressure controller (19), gas pressure regulator (19) control cylinder (22) stretch out again so that mould (24) is right in activity
Move, when mould (24) in activity and fixed upper mould (32) close up, drive die device (23) formation self-locking, can now remove pneumatic cylinder
Air pressure, into Laser shock loading next time under foil welding and clamping process.
A kind of 6. method for strengthening foil bonding strength under Laser shock loading according to claim 5, it is characterised in that institute
It is K9 glass to state restraint layer (11).
A kind of 7. method for strengthening foil bonding strength under Laser shock loading according to claim 5, it is characterised in that institute
It is aluminium foil to state absorbed layer (8).
A kind of 8. method for strengthening foil bonding strength under Laser shock loading according to claim 5, it is characterised in that institute
The thickness for stating multiple paper tinsel (7) is 20um~40um, and the thickness of base paper tinsel (6) is 50um~100um.
A kind of 9. method for strengthening foil bonding strength under Laser shock loading according to claim 5, it is characterised in that institute
It is of the same race or different metal materials to state multiple paper tinsel (7) and base paper tinsel (6).
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| CN201610688696.0A CN106271067B (en) | 2016-08-18 | 2016-08-18 | Strengthen the device and method of foil bonding strength under a kind of Laser shock loading |
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| CN201610688696.0A CN106271067B (en) | 2016-08-18 | 2016-08-18 | Strengthen the device and method of foil bonding strength under a kind of Laser shock loading |
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Cited By (2)
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| CN107378234A (en) * | 2017-08-15 | 2017-11-24 | 江苏大学 | Ultrasonic vibration aids in the device and method of high speed impact pressure welding metal foil plate |
| CN108406145A (en) * | 2018-05-28 | 2018-08-17 | 湖南大学 | A kind of buoyant gas auxiliary welding device and the welding method using the device |
Families Citing this family (2)
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| CN107717212B (en) * | 2017-08-22 | 2019-04-02 | 江苏大学 | A kind of metal sheet profiled devices and methods therefor of laser-impact |
| CN109048032B (en) * | 2018-08-21 | 2020-07-31 | 江苏大学 | Automatic clamping device and method for laser shock pressure welding |
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