CN108723621A - A kind of side welding method of the deformable metal foil structure of small initial angle - Google Patents
A kind of side welding method of the deformable metal foil structure of small initial angle Download PDFInfo
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- CN108723621A CN108723621A CN201810596857.2A CN201810596857A CN108723621A CN 108723621 A CN108723621 A CN 108723621A CN 201810596857 A CN201810596857 A CN 201810596857A CN 108723621 A CN108723621 A CN 108723621A
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- metal foil
- deformable metal
- foil structure
- connector
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Classifications
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
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Abstract
A kind of side welding method of the deformable metal foil structure of small initial angle, it belongs to special welding and the connection area of deformable metal foil structure, and in particular to a kind of side welding method of the deformable metal foil structure of small initial angle.The invention aims to solve the problems, such as the welding difficulty of the side of the deformable metal foil structure of small initial angle.Side welding method：One, connector is set；Two, the position of 6 spot welding is set；Three, compression moulding obtains deformable metal foil structure before being brazed；Four, spot welding obtains a postwelding structure；Five, heat-treatment furnace completes the side welding of the deformable metal foil structure of small initial angle.Advantage：The 1.2atm pressure differences that can be born.Present invention is mainly used for the welding of the side of the deformable metal foil structure of small initial angle.
Description
Technical field
The invention belongs to the special welding of deformable metal foil structure and connection areas, and in particular to a kind of small initial folder
The side welding method of the deformable metal foil structure at angle.
Background technology
Deformable structure is due to that can be not in certainly by folding and being unfolded come changeable volume, and during folding exhibition
The destruction of body, therefore be widely used in space flight.Compared to the deformable structure of high molecular material manufacture, metal material can be changed
The overall stiffness and the strength of materials of shape structure are good, while showing in terms of shaping performance after uvioresistant irradiates and is unfolded excellent.
Therefore has good application potential.Although there are the report that deformable metal structure is applied in foreign countries at present, because secrecy is former
Because no, relevant manufacturing technology is disclosed, and domestic research is in initial period.Metal foil is readily formed relative to plank,
And it is not easy the fold for the destruction and inner surface for crooked outer surface occur in flexural deformation, while resistance of deformation is small.Therefore
For load-bearing requirements are low or the deformable structure part of MULTILAYER COMPOSITE, metal foil are more suitable for manufacturing.
The forming of deformable metal foil structure and deformation process are generally by being divided into following several stages：First, to structure
Plastic Forming and sealed connection are carried out, that is, shapes metal foil structure, and be attached to structure side, is tied after the completion of connection
Structure is in original state；Secondly, the structure of original state is folded into small size state, is positioned in means of transport；Again, it arrives
Large volume state is constituted by the knot of external applied load unfolded state after up to purpose, is come into operation under large volume state.Structure
Original state influence folded configuration volume size, and then influence occupy transport space size.In general, initial shape
State volume is smaller, and the transport space of occupancy is smaller.
Original state lower structure it is small, illustrate that the angle between the adjacent each unit of original state lower structure is smaller.By
In connector almost with other location contacts of structure, therefore the space very little that can be subjected to, so small under original state
The difficulty of the deformable super thin metal foil structure side connection of angle is larger.It is reported at present still without relevant technology.
Invention content
The invention aims to solve the welding difficulty of the side of the deformable metal foil structure of small initial angle
Problem, and a kind of side welding method of the deformable metal foil structure of small initial angle is provided.
A kind of side welding method of the deformable metal foil structure of small initial angle, is specifically realized by the following steps
's：
One, connector, deformable metal foil structure foil are set in the both sides of deformable metal foil structure foil plate
Plate parallelogram, and deformable metal foil structure foil plate is made of multiple identical triangular vanes, adjacent two
The flat shape of a triangular vane composition is parallelogram, deformable metal foil structure foil plate outermost two three
Angle blades are blade to be welded, and the minimum acute ends in the longest bevel edge of blade to be welded are arranged in connector, and in leaf to be welded
The blade overlap joint welding to be welded of the connector and the other side of piece setting, when overlap joint welding, except blade coupling to be welded will not be with
Other parts generate interference；
Two, the position of 6 spot welding on connector is set, ensure that connector is uniformly fixed with blade to be welded；
Three, pricker is coated in the side of connector by after deformable metal foil structure foil plate compression moulding by punching block
Material is used for the sealing of connector when overlap joint welding, obtains deformable metal foil structure before being brazed；
Four, Gripping platform is placed on mash welder, and the blade to be welded of deformable metal foil structure after molding is placed in
On the loading plate of Gripping platform, loading plate ensures that connector and bucket flat to be welded are placed, and 6 spot welding on guarantee connector
Then position carries out spot welding using the position of 6 spot welding in mash welder corresponding joints, obtains in the upper surface of loading plate
Point postwelding structure；
Five, a postwelding structure is positioned in heat-treatment furnace, is brazed under nitrogen protection, cools to room temperature with the furnace,
Complete the side welding of the deformable metal foil structure of small initial angle.
Advantage of the present invention：
1, the present invention realizes being reliably connected for the side of the deformable metal foil structure of small initial angle.It is directed to just
The deformable metal foil structure of small angle is small in the operable space of joint location under beginning state, is not easy the problem welded, and will pass
The spot welding and soldering of system are combined.The fixation that connector is realized by spot welding, increases the deposited strength of connector.Meanwhile passing through soldering
Realize joint sealing connection.Obtain good airproof performance, the high connector of intensity.
2, the connector of one aspect of the present invention design specific shape and size, it is ensured that each section is not dry when connection and after connection
It relates to, is set as overlapping by connector in addition so that joint has enough contacts area to realize sealed connection；On the other hand, in point
Specific Gripping platform is devised when weldering, prevents from making structure local deformation occur because of the force of welding gun electrode when welding.
3, the deformable metal foil sealing structure of the small initial angle obtained after the present invention welds is strong, can bear
1.2atm pressure differences, meet application requirement.
Description of the drawings
Fig. 1 is the structural schematic diagram of deformable metal foil structure foil plate, and 4 indicate deformable metal foil knots in figure
Structure foil plate, 5 indicate connector；
Fig. 2 indicates the structural schematic diagram of connector, and 5 indicate connectors in figure, and 6 indicate the position of spot welding；
Fig. 3 is the structural schematic diagram of Gripping platform, and 1 indicates pedestal in figure, and 2 indicate supporting rods, and 3 indicate loading plates；
Fig. 4 indicates spot welding assembling schematic diagram, and 1 indicates pedestal in figure, and 2 indicate supporting rods, and 7 indicate deformable metals before soldering
Foil structure, 8 indicate point welding machine welding head.
Specific implementation mode
Specific implementation mode one：Present embodiment is a kind of side weldering of the deformable metal foil structure of small initial angle
Method is connect, is specifically realized by the following steps：
One, connector, deformable metal foil structure foil are set in the both sides of deformable metal foil structure foil plate
Plate parallelogram, and deformable metal foil structure foil plate is made of multiple identical triangular vanes, adjacent two
The flat shape of a triangular vane composition is parallelogram, deformable metal foil structure foil plate outermost two three
Angle blades are blade to be welded, and the minimum acute ends in the longest bevel edge of blade to be welded are arranged in connector, and in leaf to be welded
The blade overlap joint welding to be welded of the connector and the other side of piece setting, when overlap joint welding, except blade coupling to be welded will not be with
Other parts generate interference；
Two, the position of 6 spot welding on connector is set, ensure that connector is uniformly fixed with blade to be welded；
Three, pricker is coated in the side of connector by after deformable metal foil structure foil plate compression moulding by punching block
Material is used for the sealing of connector when overlap joint welding, obtains deformable metal foil structure before being brazed；
Four, Gripping platform is placed on mash welder, and the blade to be welded of deformable metal foil structure after molding is placed in
On the loading plate 3 of Gripping platform, loading plate 3 ensures that connector and bucket flat to be welded are placed, and ensures 6 spot welding on connector
Position in the upper surface of loading plate 3, then using the position of 6 spot welding in mash welder corresponding joints carry out spot welding,
Obtain a postwelding structure；
Five, a postwelding structure is positioned in heat-treatment furnace, is brazed under nitrogen protection, cools to room temperature with the furnace,
Complete the side welding of the deformable metal foil structure of small initial angle.
Initial angle refers to the angle of two neighboring triangular vane.The angle is very big in some deformable structures, has
Very little, 50 ° of the angle < of the deformable metal foil structure of small initial angle, the initial angle very little of this structure, that brings asks
Topic is：Side is not easy to connect.Because no sufficient space come realize the welding such as argon arc welding (such as because of joint location narrow space,
Argon arc welding gun cannot be allowed to pass through).The best way is soldering, but is needed connector before being brazed and overlapped therewith blade
It fixes.Soldering strength may be inadequate simultaneously, therefore spot welding before brazing.There are two the purposes of spot welding：It is connect first, can fix
Head；Second is that the intensity of soldering rear joint can be increased.
Specific implementation mode two：The difference of present embodiment and specific implementation mode one is：It can be changed described in step 1
Shape metal foil structure foil plate is made of multiple identical triangular vanes, wherein the length of the longest bevel edge of triangular vane
Angle for 207mm, a length of 40mm of degree of most short side, the corresponding minimum acute angle of most short side is 11 °.Other and specific implementation mode
One is identical.
Small initial angle is deformable made of the deformable metal foil structure foil plate provided present embodiment
The angle of metal foil structure is 35 °.
Specific implementation mode three：The difference of present embodiment and specific implementation mode two is：Connector described in step 1
The side AB of hexagonal ABCDLK, hexagon ABCDLK are on the most short side extended line of blade to be welded, side AK and leaf to be welded
The coincidence of the longest bevel edge of piece, the length of side AB are 30mm, and the length of side BC is 28mm, and the length of side CD is 65mm, side AB with
The angle of side BC is 117 °, while BC with while CD angle be 159 °, side DL is 45 ° of bevel edges, and the length of side DL is 2mm.Other
It is identical with embodiment two.
Specific implementation mode four：The difference of present embodiment and specific implementation mode three is：6 described in step 2
The position of spot welding is respectively the vertical range of point E, point F, point H, point G, point I and point J, midpoint E, point G, point I and point J and side AK
For 6mm, point E, point G, point I and point J are followed successively by from A to K, and point E, point G, point I and point J are equally distributed, spacing 17mm,
The length of AE is 12mm；The vertical range of point F and point H and side AK is 18mm, and point F and point H, and point F and point H are followed successively by from A to K
Spacing be 17mm, the length of AF is 25mm.Other are the same as the specific implementation mode 3.
Specific implementation mode five：One of present embodiment and specific implementation mode one to four difference are：Institute in step 4
Gripping platform is stated by pedestal 1, supporting rod 2 and loading plate 3, supporting rod 2 is fixed on vertically on pedestal 1, and loading plate 3 is horizontally fixed on
Supporting rod 2,3 MNO triangular in shape of loading plate, loading plate 3 are fixed together along side MN and supporting rod 2, and the length of side MN is
The length of 134mm, side MO are 311mm, and the length of side NO is 368mm.Other are identical as specific implementation mode one to four.
Specific implementation mode six：One of present embodiment and specific implementation mode two to five difference are：Lead in step 3
Punching block is crossed by after deformable metal foil structure foil plate compression moulding, solder is coated in the side of connector, and along side KL and
Side LD is bonded using epoxide-resin glue, obtains deformable metal foil structure before being brazed.Other and specific implementation mode two
It is identical to five.
The content of present invention is not limited only to the content of the respective embodiments described above, the group of one of them or several specific implementation modes
Contract sample can also realize the purpose of invention.
Using following verification experimental verifications effect of the present invention
Embodiment 1：A kind of side welding method of the deformable metal foil structure of small initial angle is specifically pressed following
What step was completed：
One, connector, deformable metal foil structure foil are set in the both sides of deformable metal foil structure foil plate
Plate parallelogram, and deformable metal foil structure foil plate is made of multiple identical triangular vanes, adjacent two
The flat shape of a triangular vane composition is parallelogram, deformable metal foil structure foil plate outermost two three
Angle blades are blade to be welded, and the minimum acute ends in the longest bevel edge of blade to be welded are arranged in connector, and in leaf to be welded
The blade overlap joint welding to be welded of the connector and the other side of piece setting, when overlap joint welding, except blade coupling to be welded will not be with
Other parts generate interference；
Two, the position of 6 spot welding on connector is set, ensure that connector is uniformly fixed with blade to be welded；
Three, pricker is coated in the side of connector by after deformable metal foil structure foil plate compression moulding by punching block
Material is used for the sealing of connector when overlap joint welding, obtains deformable metal foil structure before being brazed；
Four, Gripping platform is placed on mash welder, and the blade to be welded of deformable metal foil structure after molding is placed in
On the loading plate 3 of Gripping platform, loading plate 3 ensures that connector and bucket flat to be welded are placed, and ensures 6 spot welding on connector
Position in the upper surface of loading plate 3, then using the position of 6 spot welding in mash welder corresponding joints carry out spot welding,
Obtain a postwelding structure；
Five, a postwelding structure is positioned in heat-treatment furnace, is brazed under nitrogen protection, cools to room temperature with the furnace,
Complete the side welding of the deformable metal foil structure of small initial angle.
Deformable metal foil structure foil plate described in the present embodiment step 1 is by multiple identical triangular vane groups
At wherein the length of the longest bevel edge of triangular vane is 207mm, a length of 40mm of degree of most short side, the corresponding minimum of most short side
The angle of acute angle is 11 °.
The side AB of the hexagonal ABCDLK of connector described in the present embodiment step 1, hexagon ABCDLK are in blade to be welded
Most short side extended line on, side AK is overlapped with the longest bevel edge of blade to be welded, and the length of side AB is 30mm, the length of side BC
For 28mm, the length of side CD is 65mm, while AB with while BC angle be 117 °, while BC with while CD angle be 159 °, side DL is
The length of 45 ° of bevel edges, side DL is 2mm.
The position of 6 spot welding described in the present embodiment step 2 respectively point E, point F, point H, point G, point I and point J,
Midpoint E, point G, point I and point J and the vertical range of side AK are 6mm, and point E, point G, point I and point J, and point E, point are followed successively by from A to K
G, point I and point J are equally distributed, and the length of spacing 17mm, AE are 12mm；Point F and point H and the vertical range of side AK are
12mm is followed successively by point F and point H from A to K, and the spacing of point F and point H is 17mm, and the length of AF is 21mm.
For Gripping platform described in the present embodiment step 4 by pedestal 1, supporting rod 2 and loading plate 3, supporting rod 2 is fixed vertically
On pedestal 1, loading plate 3 is horizontally fixed on supporting rod 2, and 3 MNO triangular in shape of loading plate, loading plate 3 is along side MN and supporting rod 2
It is fixed together, the length of side MN is 134mm, and the length of side MO is 311mm, and the length of side NO is 368mm.
By punching block by after deformable metal foil structure foil plate compression moulding in the present embodiment step 3, in connector
Side coat solder, and along while KL and while LD be bonded using epoxide-resin glue, deformable metal foil before obtaining being brazed
Structure.
After the side connection for completing foil structure by above method, then the connection of end and flange is carried out, composition has interior
The closed structure of chamber.Gas, structure expansion are passed through into structure.When air pressure is more than 1.2atm, structure face in the level of folding line
Position leaks air, and the air pressure of 1.2atm can be born by showing side portion structure at least, without failing.
Claims (6)
1. a kind of side welding method of the deformable metal foil structure of small initial angle, it is characterised in that it be specifically by with
What lower step was completed：
One, connector, deformable metal foil structure foil plate are set in the both sides of deformable metal foil structure foil plate
Parallelogram, and deformable metal foil structure foil plate is made of multiple identical triangular vanes, two neighboring three
The flat shape of angle blades composition is parallelogram, deformable metal foil structure foil plate two triangles of outermost
Blade is blade to be welded, and the minimum acute ends in the longest bevel edge of blade to be welded are arranged in connector, and are set in blade to be welded
The blade overlap joint welding to be welded of the connector and the other side set, when overlap joint welding, except blade coupling to be welded will not with it is other
Part generates interference；
Two, the position of 6 spot welding on connector is set, ensure that connector is uniformly fixed with blade to be welded；
Three, solder is coated in the side of connector, is used by after deformable metal foil structure foil plate compression moulding by punching block
The sealing of connector when overlap joint welding obtains deformable metal foil structure before being brazed；
Four, Gripping platform is placed on mash welder, and the blade to be welded of deformable metal foil structure after molding is placed in clamping
On the loading plate (3) of platform, loading plate (3) ensures that connector and bucket flat to be welded are placed, and ensures 6 spot welding on connector
Position in the upper surface of loading plate (3), then carried out a little using the position of 6 spot welding in mash welder corresponding joints
Weldering, obtains a postwelding structure；
Five, a postwelding structure is positioned in heat-treatment furnace, is brazed under nitrogen protection, cool to room temperature with the furnace, i.e., it is complete
At the side welding of the deformable metal foil structure of small initial angle.
2. a kind of side welding method of the deformable metal foil structure of small initial angle according to claim 1,
It is characterized in that the structure foil plate of deformable metal foil described in step 1 is made of multiple identical triangular vanes, wherein three
The length of the longest bevel edge of angle blades is 207mm, a length of 40mm of degree of most short side, the angle of the corresponding minimum acute angle of most short side
It is 11 °.
3. a kind of side welding method of the deformable metal foil structure of small initial angle according to claim 2,
It is characterized in that most short sides of the side AB in blade to be welded of connector described in step 1 hexagonal ABCDLK, hexagon ABCDLK
On extended line, side AK is overlapped with the longest bevel edge of blade to be welded, and the length of side AB is 30mm, and the length of side BC is 28mm,
The length of side CD be 65mm, while AB with while BC angle be 117 °, while BC with while CD angle be 159 °, side DL be 45 ° of chamferings
The length on side, side DL is 2mm.
4. a kind of side welding method of the deformable metal foil structure of small initial angle according to claim 3,
It is characterized in that the position of 6 spot welding described in step 2 is respectively point E, point F, point H, point G, point I and point J, midpoint E, point
G, the vertical range of point I and point J and side AK are 6mm, are followed successively by point E, point G, point I and point J from A to K, and point E, point G, point I and
Point J is equally distributed, and the length of spacing 17mm, AE are 12mm；The vertical range of point F and point H and side AK is 18mm, from A
It is followed successively by point F and point H to K, and the spacing of point F and point H is 17mm, the length of AF is 25mm.
5. a kind of side of the deformable metal foil structure of small initial angle according to claim 1,2,3 or 4 is welded
Method, it is characterised in that for Gripping platform described in step 4 by pedestal (1), supporting rod (2) and loading plate (3), supporting rod (2) is perpendicular
It is directly fixed on pedestal (1), loading plate (3) is horizontally fixed on supporting rod (2), loading plate (3) MNO triangular in shape, loading plate (3)
It is fixed together along side MN and supporting rod (2), the length of side MN is 134mm, and the length of side MO is 311mm, and the length of side NO is
368mm。
6. a kind of side welding method of the deformable metal foil structure of small initial angle according to claim 5,
It is characterized in that in step 3 applying after deformable metal foil structure foil plate compression moulding in the side of connector by punching block
Cover solder, and along while KL and while LD be bonded using epoxide-resin glue, obtain deformable metal foil structure before being brazed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596857.2A CN108723621B (en) | 2018-06-11 | 2018-06-11 | Side welding method of deformable metal foil structure with small initial included angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596857.2A CN108723621B (en) | 2018-06-11 | 2018-06-11 | Side welding method of deformable metal foil structure with small initial included angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108723621A true CN108723621A (en) | 2018-11-02 |
| CN108723621B CN108723621B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810596857.2A Expired - Fee Related CN108723621B (en) | 2018-06-11 | 2018-06-11 | Side welding method of deformable metal foil structure with small initial included angle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759664A (en) * | 2019-03-12 | 2019-05-17 | 哈尔滨汽轮机厂有限责任公司 | The processing method of low pressure movable vane piece welding stellite alloy sheet defect elimination process |
| CN110842362A (en) * | 2019-12-09 | 2020-02-28 | 浙江普兴电子科技有限公司 | Variable ultrathin structure metal inner layer-flexible middle layer-metal outer layer side welding method |
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| CN106216799A (en) * | 2016-09-29 | 2016-12-14 | 深圳市晟达真空钎焊技术有限公司 | Metallic plate and the weld jig of metal folding sheet vacuum brazing |
| CN106238582A (en) * | 2016-09-19 | 2016-12-21 | 哈尔滨工业大学 | A kind of mould using metal foil/thin plate making space deployable cabin section |
| CN106493505A (en) * | 2016-11-16 | 2017-03-15 | 中国人民解放军第五七九工厂 | The advanced method for welding that a kind of aero-engine stator blade three-dimensional dimension is repaired |
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| US3899815A (en) * | 1973-09-28 | 1975-08-19 | Rockwell International Corp | Thermal bed screen pack |
| CN102974946A (en) * | 2012-11-12 | 2013-03-20 | 西安航空动力股份有限公司 | Method for controlling deformation of sheet bar honeycomb during vacuum soldering and brazing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109759664A (en) * | 2019-03-12 | 2019-05-17 | 哈尔滨汽轮机厂有限责任公司 | The processing method of low pressure movable vane piece welding stellite alloy sheet defect elimination process |
| CN110842362A (en) * | 2019-12-09 | 2020-02-28 | 浙江普兴电子科技有限公司 | Variable ultrathin structure metal inner layer-flexible middle layer-metal outer layer side welding method |
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| CN108723621B (en) | 2020-06-09 |
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