CN107199439A - A kind of square honeycomb sandwich construction and preparation method thereof - Google Patents
A kind of square honeycomb sandwich construction and preparation method thereof Download PDFInfo
- Publication number
- CN107199439A CN107199439A CN201710354840.1A CN201710354840A CN107199439A CN 107199439 A CN107199439 A CN 107199439A CN 201710354840 A CN201710354840 A CN 201710354840A CN 107199439 A CN107199439 A CN 107199439A
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- square
- sandwich construction
- honeycomb sandwich
- rear side
- side panel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
- F16S3/06—Assemblies of elongated members
- F16S3/08—Assemblies of elongated members forming frameworks, e.g. gratings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of square honeycomb sandwich construction and preparation method thereof, square cellular-core is prepared using interlocking technique, by cell location in core body, it is determined that in unilateral panel perforate position, institute's opening square hole overlaps with the geometric center of square honeycomb unit cell.Core body and front and rear sides panel are welded by squarely honeycomb sandwich construction using soldering or argon arc welding.Compared with traditional square honeycomb sandwich construction, this modified square honeycomb sandwich construction is under conditions of ensureing that carrying, shock resistance are suitable, and preparation is simpler, safeguards more convenient, it is easy to batch production simultaneously, is had broad application prospects in fields such as communications and transportation, security protection and military affairs.
Description
Technical field
The invention belongs to sandwich design and preparation field, and in particular to a kind of square honeycomb sandwich construction and its preparation
Method.
Background technology
Honeycomb lattice structure has at home and abroad possessed some special knowledge as a kind of two-dimension periodic loose structure.Wherein square honeybee
Nest lattice structure has ideal compression and cutting performance, has relative to lattice structures such as ripple, three-dimensional rod members and substantially holds
Load advantage；Simultaneously under Explosive Shock Loading effect, square honeycomb sandwich construction also shows more significant performance advantage.To the greatest extent
Managing square honeycomb sandwich construction has optimal bearing capacity, but its Cellular structure in existing porous material/structural system
Closure constrains its multifunction application.Meanwhile, in the processing and preparation of large-scale steel structure, argon arc welding can not be in square honeybee
Carry out in the closing cell element of nest sandwich.In addition, corrosion easily occurs for steel construction in wet condition, and square honeycomb interlayer
The Cellular structure closed in structure is unfavorable for implementing maintenance and protected.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that proposing a kind of unilateral panel
The square honeycomb sandwich construction of opening square hole, collection carrying, shock resistance, multifunctional application one, processing and system in large-scale steel structure
Standby middle welding procedure is ripe, overcomes internal structure corrosion problem in complex environment.
The present invention uses following technical scheme：
A kind of square honeycomb sandwich construction preparation method, comprises the following steps：
S1, the metallic plate of smooth mistake cut into some rectangular metal laths, then in the rectangular metal lath width
Some slots are opened up on direction；
S2, the assembled squarely honeycomb of multiple laths of metals for preparing step S1, are made of welding manner
Cellular-core；
S3, the metallic plate of smooth mistake cut into some rectangular metal plates, be prepared into front panel and rear side panel, according to
Cell location determines the position of perforate in the rear side panel in the cellular-core prepared by step S2, in the rear side panel
Upper opening square hole；
S4, the front panel and rear side panel for preparing the step S2 square cellular-cores prepared and step S3
The square honeycomb sandwich construction of unilateral panel opening square hole is made in welding.
It is preferred that, in step S1, the thickness of the laths of metal is 0.5~5mm, the width side of each laths of metal
To some slots are provided with, the depth of the slot is the half of the rectangular metal lath width, and the width of the slot is big
In 0.05~0.2mm of the laths of metal thickness.
It is preferred that, in step S3, the thickness of front panel and the rear side panel is 0.5~10mm.
It is preferred that, in step S2 and S4, cleaning first is carried out to the laths of metal, front panel and rear side panel respectively and gone
Except the greasy dirt and rusty stain on surface, the then dry for standby in 40~50 DEG C of baking ovens.
It is preferred that, the material of the metallic plate includes carbon steel, stainless steel, aluminium alloy, magnesium alloy and titanium alloy.
It is preferred that, the welding uses soldering or argon arc welding mode, and the vacuum of the soldering is 10-2Pa, with 1 DEG C/min
Speed is incubated 10~60min from room temperature to 900 DEG C.
A kind of square honeycomb sandwich construction, including front panel and rear side panel, front panel and the rear side panel it
Between be provided with some laths of metals, some laths of metals are mutually perpendicular into lattice structure and constitute square cellular-core, institute
State and be provided with each unit cell of correspondence on each nest one independent unit cell of composition of cellular-core, the rear side panel
Square hole.
It is preferred that, the size of each square hole opened up on the rear side panel is identical.
It is preferred that, the area of the square hole accounts for the 0~50% of the trailing flank plate suqare.
Compared with prior art, the present invention at least has the advantages that：
The present invention discloses a kind of square honeycomb sandwich construction preparation method, and square cellular-core is prepared using interlocking technique,
By cell location in core body, it is determined that in unilateral panel perforate position, the geometric center of institute's opening square hole and square honeycomb unit cell
Overlap, core body and front and rear sides panel are welded by squarely honeycomb sandwich construction using soldering or argon arc welding, collection is prepared and holds
Load, shock resistance, multifunctional application one, welding procedure is ripe in the processing and preparation of large-scale steel structure, overcomes complex environment
The modified square honeycomb sandwich construction of middle internal structure corrosion problem, the preparation method process is simple, and technical maturity overcomes
Welding Problems caused by legacy cellular sandwich cell element closure, are easy to batch production.
Further, socket depth is the half of rectangular metal lath width, and slot width is more than laths of metal thickness
0.05~0.2mm, is easy to assembled and does not influence the precision and stability of node configuration.
Invention additionally discloses a kind of square honeycomb sandwich construction, it is made up of front panel, cellular-core and rear side panel,
The unit cell of correspondence cellular-core opens up some square holes on rear side panel, compared to traditional square honeycomb sandwich construction, unilateral panel
The square honeycomb interlayer of opening square hole is while constant structural bearing, shock resistance advantage or even lifting is ensured, by single side face
Plate opening square hole, overcomes restriction of the closing Cellular structure to traditional square honeycomb sandwich construction in actual applications.
Further, the separation of front and back sides plate can bear more pressures, improve bending rigidity, and honeycomb core
Body is primarily subjected to shearing, improves structure shear resistance, opens up square hole in constant same of guarantee structural bearing, shock resistance advantage
When improve preparation technology.
Further, according to existing experimental result, when square hole area accounts for trailing flank plate suqare 0~50%, the structure is relative
Lifted in traditional traditional square honeycomb sandwich construction bearing capacity.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is square cellular-core assembling schematic diagram of the invention；
Fig. 2 is the square honeycomb interlayer sandwich structure schematic diagram of the unilateral panel cut out of the present invention；
Fig. 3 is trend schematic diagram of the subsequent side panel perforated area of interlayer sandwich structure intensity of the present invention than change.
Wherein：1. laths of metal；2. cellular-core；3. front panel；4. rear side panel.
Embodiment
In the description of the invention, it is to be understood that the orientation or position relationship of the instruction such as term " interior ", " outer " are base
In orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 and Fig. 2 are referred to, the invention provides a kind of square honeycomb sandwich construction of unilateral panel opening square hole, including
Front panel 3 and rear side panel 4, are provided with some laths of metals 1 between the front panel 3 and rear side panel 4, some described
Laths of metal 1, which is arranged in a mutually vertical manner, constitutes square cellular-core 2, and each honeycomb of the cellular-core 2 constitutes an independence
Unit cell, be provided with square hole at each unit cell of correspondence on the rear side panel 4.
The width of each laths of metal 1 is provided with some slots, and the depth of the slot is rectangle gold
Belong to the half of the width of lath 1, the width of the slot is more than 0.05~0.2mm of the thickness of laths of metal 1.
The square hole is overlapped with the geometric center of the unit cell.
The size of each square hole opened up on the rear side panel 4 is identical.
The area of the square hole accounts for the 0~50% of the area of rear side panel 4；
The invention also discloses a kind of preparation method of the square honeycomb sandwich construction of unilateral panel opening square hole, including it is following
Step：
S1, first, some rectangular metals are cut into plate shearing machine by the metallic plate that the thickness of smooth mistake is 0.5mm~5mm
Lath, then opens up some slots using Wire EDM in rectangular metal lath width；
Wherein socket depth be rectangular metal lath width half, slot width be more than laths of metal thickness 0.05~
0.2mm；
S2, the assembled squarely honeycomb of the laths of metal for preparing step S1 form square cellular-core, and right
Welded the stitching portion of square cellular-core；
S3, with plate shearing machine the thickness of smooth mistake cut into some rectangular metal plates for 0.5~10mm metallic plate, prepared
Front panel and rear side panel, by cell location in square honeycomb dot matrix structural core, it is determined that in rear side panel perforate position
Put, using Wire EDM on rear side panel opening square hole, institute's opening square hole overlaps with square honeycomb unit cell geometric center；
S4, the front panel and rear side panel for preparing the step S2 square cellular-cores prepared and step S3
Welding obtains the square honeycomb sandwich construction of unilateral panel opening square hole.
It is preferred that, the metallic plate material is carbon steel, stainless steel, aluminium alloy, magnesium alloy, titanium alloy.
It is preferred that, the welding technique is soldering or argon arc welding.
Embodiment 1：
1) first, the 0.5mm stainless steel plates of smooth mistake are cut into the rectangular metal plate of some appropriate sizes with plate shearing machine
Bar, then opens up some slots, wherein socket depth is rectangle using Wire EDM in rectangular metal lath width
The half of laths of metal width, slot width is more than 0.05~0.2mm of laths of metal thickness, surplus be for the ease of assembled and
The precision and stability of node configuration is not influenceed；
2) laths of metal for cutting completion secondly, is added into metal cleaner in supersonic cleaning machine to be cleaned, removed
The grease and rusty stain on its surface, are then dried in 40~50 DEG C of baking ovens, by the metallic plate for offering slot after drying
Bar assembly squarely honeycomb core body, uniformly smears NiCr at interpolation25P10Solder paste, 40~50 DEG C of drying in an oven,
Then said structure is fitted into high temperature brazing stove and welded, slow cooling to room temperature, which is come out of the stove, after the completion of welding obtains square honeycomb core
Body；
The soldering：Vacuum degree control is 10-2Pa, with 1 DEG C/min speed from room temperature to 900 DEG C insulation 10~
60min；
3) stainless steel plate that thickness is 1mm then, is cut into appropriate size rectangular metal plate with plate shearing machine and is used as front side
Panel and rear side panel；Position of opening in rear side panel is determined by cell location in the cellular-core of square lattice structure,
By Wire EDM on rear side panel opening square hole, institute's opening square hole is overlapped with square honeycomb unit cell geometric center, opened
Square hole area accounts for the 25% of plate suqare below；
4) front panel is added into metal cleaner in supersonic cleaning machine with rear side panel to be cleaned, to remove its table
The grease and rusty stain in face, are then dried in 40~50 DEG C of baking ovens, then by the front panel after drying, rear side panel with
The square cellular-core that welding is completed is fitted together, and uniformly smears NiCr in binding site25P10Solder paste, in an oven
Said structure, is then fitted into high temperature brazing stove and is welded, slow cooling to room temperature is come out of the stove after the completion of welding by 40~50 DEG C of drying
Obtain the square honeycomb sandwich construction of unilateral panel cut out；
The soldering：Vacuum degree control is 10-2Pa, with 1 DEG C/min speed from room temperature to 900 DEG C of insulation 10min.
Embodiment 2：
1) first, the 1mm aluminium alloy plates of smooth mistake are cut into the rectangular metal lath of some appropriate sizes with plate shearing machine,
Then some slots are opened up in rectangular metal lath width using Wire EDM, wherein socket depth is rectangular metal
The half of width of sheet, slot width is more than 0.05~0.2mm of laths of metal thickness, and surplus is for the ease of assembled and not shadow
Ring the precision and stability of node configuration；
2) laths of metal for cutting completion secondly, is added into metal cleaner in supersonic cleaning machine to be cleaned, removed
The grease and rusty stain on its surface, are then dried in 40~50 DEG C of baking ovens, by the metallic plate for offering slot after drying
Bar assembly squarely cellular-core, uniformly smears commercially available aluminium soldering cream, in an oven 40~50 DEG C of drying, then at interpolation
Said structure is fitted into high temperature brazing stove and welded, slow cooling to room temperature, which is come out of the stove, after the completion of welding obtains square cellular-core；
The soldering：Vacuum degree control is 10-2Pa, with 1 DEG C/min speed from room temperature to 550~600 DEG C of insulations 10
~20min.
3) aluminium alloy plate that thickness is 2mm then, is cut into appropriate size rectangular metal plate with plate shearing machine and is used as front side
Panel and rear side panel；By cell location in square cellular-core, position of opening in rear board is determined, is cut by wire electric discharge
The opening square hole on plate below is cut, institute's opening square hole is overlapped with square honeycomb unit cell geometric center, institute's evolution hole area accounts for rear board
The 40% of area.
4) front panel is added into metal cleaner in supersonic cleaning machine with rear side panel to be cleaned, to remove its table
The grease and rusty stain in face, are then dried in 40~50 DEG C of baking ovens.Then using argon arc welding successively by front panel, rear side
Panel welds the square honeycomb sandwich construction for obtaining unilateral panel opening square hole with square cellular-core.
Fig. 3 is core body height and honeycomb interlayer beam length ratio is the subsequent side panel perforated area of structural strength under the conditions of 0.1
Than the trend of change, wherein abscissa is the ratio between rear side face sheet open area and original area, and ordinate is structure under three-point bending
Intensity.The ratio between rear side face sheet open area and original area are the traditional square honeybee that structure is non-perforate under the 0 expression abscissa
Nest sandwich.V is the shearing in three-point bending underbeam in figure, and M is the moment of flexure in three-point bending underbeam, and E is girder construction mother metal
Young's modulus.
Measured by experiment, under static compress, perforated area accounts for the unilateral panel opening square hole of trailing flank plate suqare 25%
Square honeycomb sandwich construction compared with traditional square honeycomb sandwich construction intensity improve 30%, be provided simultaneously with can be achieved it is multi-functional should
With, welding procedure is ripe in the processing and preparation of large-scale steel structure, overcome the excellent of internal structure corrosion problem in complex environment
Gesture.
The technological thought of above content only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every to press
According to technological thought proposed by the present invention, any change done on the basis of technical scheme each falls within claims of the present invention
Protection domain within.
Claims (9)
1. a kind of square honeycomb sandwich construction preparation method, it is characterised in that comprise the following steps：
S1, the metallic plate of smooth mistake cut into some rectangular metal laths, then in the rectangular metal lath width
On open up some slots；
S2, the assembled squarely honeycomb of multiple laths of metals for preparing step S1, honeycomb is made using welding manner
Core body；
S3, the metallic plate of smooth mistake cut into some rectangular metal plates, front panel and rear side panel are prepared into, according to step
Cell location determines the position of perforate in the rear side panel in the cellular-core prepared by S2, is opened in the rear on side panel
Square hole；
S4, the front panel and trailing flank plate weld by the step S2 square cellular-cores prepared and step S3 preparations
The square honeycomb sandwich construction of unilateral panel opening square hole is made.
2. a kind of square honeycomb sandwich construction preparation method according to claim 1, it is characterised in that in step S1, institute
The thickness for stating laths of metal is 0.5~5mm, and the width of each laths of metal is provided with some slots, the slot
Depth be the rectangular metal lath width half, the width of the slot be more than the laths of metal thickness 0.05~
0.2mm。
3. a kind of square honeycomb sandwich construction preparation method according to claim 1, it is characterised in that in step S3, institute
The thickness for stating front panel and rear side panel is 0.5~10mm.
4. a kind of square honeycomb sandwich construction preparation method according to claim 1, it is characterised in that step S2 and S4
In, greasy dirt and rusty stain that cleaning removes surface, Ran Hou are first carried out to the laths of metal, front panel and rear side panel respectively
Dry for standby in 40~50 DEG C of baking ovens.
5. a kind of square honeycomb sandwich construction preparation method according to claim 1, it is characterised in that the metallic plate
Material includes carbon steel, stainless steel, aluminium alloy, magnesium alloy and titanium alloy.
6. a kind of square honeycomb sandwich construction preparation method according to claim 1, it is characterised in that the welding is used
Soldering or argon arc welding mode, the vacuum of the soldering is 10-2Pa, with 1 DEG C/min speed from room temperature to 900 DEG C, insulation
10~60min.
7. square honeycomb sandwich construction prepared by a kind of utilization claim 1 methods described, it is characterised in that including front panel
(3) some laths of metals (1), Ruo Gansuo and rear side panel (4), are provided between the front panel (3) and rear side panel (4)
State laths of metal (1) and be mutually perpendicular into the square cellular-core (2) of lattice structure composition, each nest of the cellular-core (2)
Nest constitutes and is provided with square hole at each unit cell of correspondence on an independent unit cell, the rear side panel (4).
8. a kind of square honeycomb sandwich construction according to claim 7, it is characterised in that opened on the rear side panel (4)
If each square hole size it is identical.
9. a kind of square honeycomb sandwich construction according to claim 7, it is characterised in that the area of the square hole accounts for described
The 0~50% of rear side panel (4) area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354840.1A CN107199439A (en) | 2017-05-18 | 2017-05-18 | A kind of square honeycomb sandwich construction and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354840.1A CN107199439A (en) | 2017-05-18 | 2017-05-18 | A kind of square honeycomb sandwich construction and preparation method thereof |
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ID=59906121
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| CN201710354840.1A Pending CN107199439A (en) | 2017-05-18 | 2017-05-18 | A kind of square honeycomb sandwich construction and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108058447A (en) * | 2017-12-28 | 2018-05-22 | 天津大学 | A kind of high-entropy alloy honeycomb interlayer harden structure and preparation method thereof |
| CN108656641A (en) * | 2018-05-15 | 2018-10-16 | 西安交通大学 | A kind of ripple-four directions honeycomb composite sandwich structure and preparation method thereof |
| CN109202204A (en) * | 2017-12-18 | 2019-01-15 | 中国航空制造技术研究院 | A kind of manufacturing method of dissimilar material honeycomb sandwich construction |
| CN109465608A (en) * | 2018-12-28 | 2019-03-15 | 清华大学天津高端装备研究院洛阳先进制造产业研发基地 | A kind of titanium alloy soldering sandwich structure plate and its manufacturing method |
| CN112212202A (en) * | 2020-09-29 | 2021-01-12 | 清华大学 | Multi-level structure based on lattice structure |
| CN113103638A (en) * | 2021-04-22 | 2021-07-13 | 大连理工大学 | Novel zero-Poisson ratio honeycomb structure and interlocking assembly manufacturing method thereof |
| CN114055080A (en) * | 2021-11-12 | 2022-02-18 | 吉林大学 | Processing method based on gradient multi-cell lattice structure |
| CN115284619A (en) * | 2022-08-05 | 2022-11-04 | 北京理工大学 | Ultrasonic welding flexible energy-conducting item and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202204A (en) * | 2017-12-18 | 2019-01-15 | 中国航空制造技术研究院 | A kind of manufacturing method of dissimilar material honeycomb sandwich construction |
| CN108058447A (en) * | 2017-12-28 | 2018-05-22 | 天津大学 | A kind of high-entropy alloy honeycomb interlayer harden structure and preparation method thereof |
| CN108656641A (en) * | 2018-05-15 | 2018-10-16 | 西安交通大学 | A kind of ripple-four directions honeycomb composite sandwich structure and preparation method thereof |
| CN109465608A (en) * | 2018-12-28 | 2019-03-15 | 清华大学天津高端装备研究院洛阳先进制造产业研发基地 | A kind of titanium alloy soldering sandwich structure plate and its manufacturing method |
| CN112212202A (en) * | 2020-09-29 | 2021-01-12 | 清华大学 | Multi-level structure based on lattice structure |
| CN112212202B (en) * | 2020-09-29 | 2021-04-27 | 清华大学 | Multi-level structure based on lattice structure |
| CN113103638A (en) * | 2021-04-22 | 2021-07-13 | 大连理工大学 | Novel zero-Poisson ratio honeycomb structure and interlocking assembly manufacturing method thereof |
| CN114055080A (en) * | 2021-11-12 | 2022-02-18 | 吉林大学 | Processing method based on gradient multi-cell lattice structure |
| CN115284619A (en) * | 2022-08-05 | 2022-11-04 | 北京理工大学 | Ultrasonic welding flexible energy-conducting item and application thereof |
| CN115284619B (en) * | 2022-08-05 | 2024-06-25 | 北京理工大学 | Ultrasonic welding flexible energy guiding item and application thereof |
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Application publication date: 20170926 |
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