CN106216496A - A kind of preparation method of high-strength light dot matrix metal material - Google Patents
A kind of preparation method of high-strength light dot matrix metal material Download PDFInfo
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- CN106216496A CN106216496A CN201610636466.XA CN201610636466A CN106216496A CN 106216496 A CN106216496 A CN 106216496A CN 201610636466 A CN201610636466 A CN 201610636466A CN 106216496 A CN106216496 A CN 106216496A
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- metal material
- dot matrix
- matrix metal
- strength light
- light dot
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The present invention relates to the preparation method of a kind of high-strength light dot matrix metal material, belong to technical field of metal material preparation.First the materials such as 6061 aluminium alloys, Graphene are carried out mixed calcining by the present invention, and carry out hot rolling and cold rolling respectively, obtain alloy sheets, then be placed on punch press and carry out pressure rolling, triangular multi-hole network structure must be revised, then it is placed on after V-type mould carries out pressing lap, is soaked in dehydrated alcohol, and carry out sonic oscillation, take out the high-strength light dot matrix metal material coarse fodder after vibration, after being cleaned by gauze, after drying and freezing processing, obtain high-strength light dot matrix metal material.High-strength light dot matrix metal material prepared by the present invention has light structures, and intensity is higher, and intensity reaches more than 25Gpa；Excellent in mechanical performance, can be widely applied to space flight and aviation and industrial equipment technical field.
Description
Technical field
The present invention relates to the preparation method of a kind of high-strength light dot matrix metal material, belong to metal material technology of preparing neck
Territory.
Background technology
Aero-Space and developing rapidly of industrial equipment technology require that people realize profound level in terms of material lighting
Technological break-through, the most only pursues the simple lighting of material, but seeks lightweight and other certain or certain several premium properties
The advanced material combined is to adapt to different demands.Gold lattice material is currently to think the most promising advanced lightweight in the world
Multifunctional material.It is the orderly ultra-light cellular material that a kind of model molecule dot matrix configuration produces, and is by face unit or bar list
The periodic network structural material of unit's composition.Metal lattice material belongs to the category of porous material, but with metal foaming material not
Be that metal lattice material is applicable to the specific strength to material, specific stiffness and structural stability etc. and has the field of requirements at the higher level
Close.Under equal quality, the comprehensive mechanical property of metal lattice material is better than disordered metal foamed materials.Metal lattice material
Specific strength, specific stiffness will be more than metal foaming material, but its sensitivity metal foam to be less than material to therein defect
Material, and quality efficiency advantage is the most prominent when extremely-low density.Metal lattice material has the feature of high porosity, unit volume
Quality be only the 20% of solid material, the gentliest, two dimension or three-dimensional net rack system can be divided into by its Space expanding, and
Mechanics and other physical properties of material are had a significant impact by the topological structure of various configuration.Metal lattice material is excellent except having
Outside different mechanical property, also there are bright prospects at aspects such as conduction of heat, electro-magnetic wave absorption, noise resistances.It both can be as many
The structural material of application, it is also possible to as the functional material of some occasions, in the ordinary course of things, has function and structure especially concurrently
Dual function, is the multifunctional engineering material of a kind of performance brilliance.Honeycomb sandwich board in metal current lattice material, ripple folder
Central layer is widely used to building, shipbuilding industry and aerospace field.
Currently used stretching nets folding prepares dot matrix metal material, and stretching nets is the cutting after-drawing of virgin metal plate to be expanded
Opening and make, its body is light and bearing capacity is strong.By the stretching nets prepared, after the smooth process of milling train, pressing lap is just
Metal lattice structure can be prepared, carry out this lattice core with panel welding or cementation process couples together and i.e. prepares metal
Truss core material.The technology that Kooistra etc. use stretching nets to fold prepares aluminium alloy pyramid lattice sandwich structure, should
The maximum advantage of technique is that expanded metals is made up of former metallic plate, and production process wastage of material is few, is greatly saved raw material, but its
Still need to drastic deformation in the fabrication process, be only used for the material of high ductibility, cause the structural strength made relatively low, and processing
Technique is complex.
Summary of the invention
The technical problem to be solved: for its knot of the dot matrix metal material utilizing stretching nets folding to prepare
Structure intensity is relatively low, the problem that processing technique is complex, and first the materials such as 6061 aluminium alloys, Graphene are mixed by the present invention
Calcining, and carry out hot rolling and cold rolling respectively, obtains alloy sheets, then is placed on punch press and carries out pressure rolling, must revise triangle many
Hole network structure, is then placed on after carrying out pressing lap in V-type mould, is soaked in dehydrated alcohol, and carries out Under Ultrasonic Vibration
Swing, take out the high-strength light dot matrix metal material coarse fodder after vibration, after being cleaned by gauze, after drying and freezing processing,
To high-strength light dot matrix metal material, high-strength light dot matrix metal material prepared by the present invention has lightweight and the higher spy of intensity
Point, processing technique is simple, can be widely applied to space flight and aviation and industrial equipment technical field.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
(1) counting by weight, take 60～65 part of 6061 aluminium alloy, 6～8 parts of Graphenes and 1～2 part of manganese dioxide, mixing is all
Even, it is subsequently placed in calcining furnace, calcines 30～40min at 500～550 DEG C, cool to room temperature with the furnace, obtain alloy base material, then put
Entering and carry out hot rolling in hot-rolling mill, carry out cold rolling subsequently, prepared thickness is the alloy sheets of 1～3mm；
(2) above-mentioned alloy sheets is put on punch press, punch shape be the length of side be the equilateral triangle of 2～3cm, to alloy sheets punching press,
Adjacent two the triangular open space distances of alloy sheets are 4～6mm, obtain triangular multi-hole network structure, subsequently by triangular multi-hole net
Shape structure puts into milling train, carries out pressure rolling with 2.1～2.3m/s, must revise triangular multi-hole network structure；
(3) by the correction triangular multi-hole network structure of above-mentioned gained, by the V-type mould that angle is 75～80, it is carried out
Pressing lap, obtains high-strength light dot matrix metal material coarse fodder, is soaked in subsequently in dehydrated alcohol, is placed in ultrasonator
In, with 45～50kHz vibrations 30～50min；
(4) after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, by gauze by its table
Face wiped clean, is subsequently placed in baking oven, and design temperature is 100～105 DEG C, takes out, put into liquid nitrogen flash freezer machine after being dried 2～3h
In, design temperature is-10～-5 DEG C, takes out, warm naturally to room temperature after freezing processing 20～25min, i.e. can get lightweight high
Strong point battle array metal material.
High-strength light dot matrix metal absorbed energy prepared by the present invention reaches more than 1500J, and elastic modelling quantity reaches
More than 220Gpa, Poisson's ratio reaches more than 0.35, and bending stiffness reaches 1750N m2Above, intensity reaches more than 25Gpa.
The present invention is compared with additive method, and Advantageous Effects is:
(1) the high-strength light dot matrix metal material that prepared by the present invention has light structures, and intensity is higher, and intensity reaches 25Gpa
Above；
(2) the high-strength light dot matrix metal material that prepared by the present invention is correlated with excellent in mechanical performance, can be widely applied to space flight and aviation
With industrial equipment technical field；
(3) preparation technology of the present invention is simple, and the required cost of raw material is low.
Detailed description of the invention
Count the most by weight, take 60～65 part of 6061 aluminium alloy, 6～8 parts of Graphenes and 1～2 part of manganese dioxide, mixed
Close uniformly, be subsequently placed in calcining furnace, calcine 30～40min at 500～550 DEG C, cool to room temperature with the furnace, obtain alloy base material,
Placing into and carry out hot rolling in hot-rolling mill, carry out cold rolling subsequently, prepared thickness is the alloy sheets of 1～3mm；Above-mentioned alloy sheets is put into
On punch press, punch shape be the length of side be the equilateral triangle of 2～3cm, to alloy sheets punching press, adjacent two triangular open space of alloy sheets
Distance is 4～6mm, obtains triangular multi-hole network structure, subsequently triangular multi-hole network structure is put into milling train, with 2.1～
2.3m/s carries out pressure rolling, must revise triangular multi-hole network structure；By the correction triangular multi-hole network structure of above-mentioned gained, logical
Over-angle be 75～80 V-type mould it is carried out pressing lap, obtain high-strength light dot matrix metal material coarse fodder, subsequently by it
It is soaked in dehydrated alcohol, is placed in ultrasonator, with 45～50kHz vibrations 30～50min；
Last after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, by gauze by it
Surface wipes is clean, is subsequently placed in baking oven, and design temperature is 100～105 DEG C, takes out, put into liquid nitrogen flash freezer after being dried 2～3h
In machine, design temperature is-10～-5 DEG C, takes out, warm naturally to room temperature, i.e. can get lightweight after freezing processing 20～25min
High-strength dot matrix metal material.
Example 1
Count the most by weight, take 65 part of 6061 aluminium alloy, 8 parts of Graphenes and 2 parts of manganese dioxide, mix homogeneously, put subsequently
Enter in calcining furnace, calcine 40min at 550 DEG C, cool to room temperature with the furnace, obtain alloy base material, place into and hot-rolling mill carries out hot rolling,
Carrying out cold rolling subsequently, prepared thickness is the alloy sheets of 3mm；Above-mentioned alloy sheets is put on punch press, punch shape be the length of side be 3cm
Equilateral triangle, to alloy sheets punching press, adjacent two the triangular open space distances of alloy sheets are 6mm, obtain the netted knot of triangular multi-hole
Structure, puts into milling train by triangular multi-hole network structure subsequently, carries out pressure rolling with 2.3m/s, must revise the netted knot of triangular multi-hole
Structure；By the correction triangular multi-hole network structure of above-mentioned gained, by the V-type mould that angle is 80, it is carried out pressing lap,
Obtain high-strength light dot matrix metal material coarse fodder, be soaked in subsequently in dehydrated alcohol, be placed in ultrasonator, with
50kHz vibrates 50min；Last after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, logical
Crossing gauze its surface wipes is clean, be subsequently placed in baking oven, design temperature is 105 DEG C, takes out after being dried 3h, puts into liquid nitrogen speed
Freezing in machine, design temperature is-5 DEG C, takes out, warm naturally to room temperature, i.e. can get high-strength light dot matrix after freezing processing 25min
Metal material.After testing, high-strength light dot matrix metal absorbed energy prepared by the present invention reaches 1525J, and elastic modelling quantity reaches
To 225Gpa, Poisson's ratio reaches 0.36, and bending stiffness reaches 1755N m2, intensity reaches 26Gpa.
Example 2
Count the most by weight, take 60 part of 6061 aluminium alloy, 6 parts of Graphenes and 1 part of manganese dioxide, mix homogeneously, put subsequently
Enter in calcining furnace, calcine 30min at 500 DEG C, cool to room temperature with the furnace, obtain alloy base material, place into and hot-rolling mill carries out hot rolling,
Carrying out cold rolling subsequently, prepared thickness is the alloy sheets of 1mm；Above-mentioned alloy sheets is put on punch press, punch shape be the length of side be 2cm
Equilateral triangle, to alloy sheets punching press, adjacent two the triangular open space distances of alloy sheets are 4mm, obtain the netted knot of triangular multi-hole
Structure, puts into milling train by triangular multi-hole network structure subsequently, carries out pressure rolling with 2.1m/s, must revise the netted knot of triangular multi-hole
Structure；By the correction triangular multi-hole network structure of above-mentioned gained, by the V-type mould that angle is 75, it is carried out pressing lap,
Obtain high-strength light dot matrix metal material coarse fodder, be soaked in subsequently in dehydrated alcohol, be placed in ultrasonator, with
45kHz vibrates 30min；Last after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, logical
Crossing gauze its surface wipes is clean, be subsequently placed in baking oven, design temperature is 100 DEG C, takes out after being dried 2h, puts into liquid nitrogen speed
Freezing in machine, design temperature is-10 DEG C, takes out, warm naturally to room temperature, i.e. can get high-strength light point after freezing processing 20min
Battle array metal material.After testing, the high-strength light dot matrix metal absorbed energy that prepared by the present invention reaches 1535J, elastic modelling quantity
Reaching 224Gpa, Poisson's ratio reaches 0.37, and bending stiffness reaches 1762N m2, intensity reaches 27Gpa.
Example 3
Count the most by weight, take 62 part of 6061 aluminium alloy, 7 parts of Graphenes and 2 parts of manganese dioxide, mix homogeneously, put subsequently
Enter in calcining furnace, calcine 35min at 520 DEG C, cool to room temperature with the furnace, obtain alloy base material, place into and hot-rolling mill carries out hot rolling,
Carrying out cold rolling subsequently, prepared thickness is the alloy sheets of 2mm；Above-mentioned alloy sheets is put on punch press, punch shape be the length of side be 2cm
Equilateral triangle, to alloy sheets punching press, adjacent two the triangular open space distances of alloy sheets are 5mm, obtain the netted knot of triangular multi-hole
Structure, puts into milling train by triangular multi-hole network structure subsequently, carries out pressure rolling with 2.2m/s, must revise the netted knot of triangular multi-hole
Structure；By the correction triangular multi-hole network structure of above-mentioned gained, by the V-type mould that angle is 77, it is carried out pressing lap,
Obtain high-strength light dot matrix metal material coarse fodder, be soaked in subsequently in dehydrated alcohol, be placed in ultrasonator, with
47kHz vibrates 40min；Last after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, logical
Crossing gauze its surface wipes is clean, be subsequently placed in baking oven, design temperature is 102 DEG C, takes out after being dried 2h, puts into liquid nitrogen speed
Freezing in machine, design temperature is-7 DEG C, takes out, warm naturally to room temperature, i.e. can get high-strength light dot matrix after freezing processing 22min
Metal material.After testing, high-strength light dot matrix metal absorbed energy prepared by the present invention reaches 1532J, and elastic modelling quantity reaches
To 230Gpa, Poisson's ratio reaches 0.37, and bending stiffness reaches 1756N m2, intensity reaches 26.5Gpa.
Claims (1)
1. the preparation method of a high-strength light dot matrix metal material, it is characterised in that concrete preparation process is:
(1) counting by weight, take 60～65 part of 6061 aluminium alloy, 6～8 parts of Graphenes and 1～2 part of manganese dioxide, mixing is all
Even, it is subsequently placed in calcining furnace, calcines 30～40min at 500～550 DEG C, cool to room temperature with the furnace, obtain alloy base material, then put
Entering and carry out hot rolling in hot-rolling mill, carry out cold rolling subsequently, prepared thickness is the alloy sheets of 1～3mm；
(2) above-mentioned alloy sheets is put on punch press, punch shape be the length of side be the equilateral triangle of 2～3cm, to alloy sheets punching press,
Adjacent two the triangular open space distances of alloy sheets are 4～6mm, obtain triangular multi-hole network structure, subsequently by triangular multi-hole net
Shape structure puts into milling train, carries out pressure rolling with 2.1～2.3m/s, must revise triangular multi-hole network structure；
(3) by the correction triangular multi-hole network structure of above-mentioned gained, by the V-type mould that angle is 75～80, it is carried out
Pressing lap, obtains high-strength light dot matrix metal material coarse fodder, is soaked in subsequently in dehydrated alcohol, is placed in ultrasonator
In, with 45～50kHz vibrations 30～50min；
(4) after above-mentioned vibration terminates, the high-strength light dot matrix metal material coarse fodder after vibration is taken out, by gauze by its table
Face wiped clean, is subsequently placed in baking oven, and design temperature is 100～105 DEG C, takes out, put into liquid nitrogen flash freezer machine after being dried 2～3h
In, design temperature is-10～-5 DEG C, takes out, warm naturally to room temperature after freezing processing 20～25min, i.e. can get lightweight high
Strong point battle array metal material.
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| CN201610636466.XA CN106216496A (en) | 2016-08-05 | 2016-08-05 | A kind of preparation method of high-strength light dot matrix metal material |
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| CN201610636466.XA CN106216496A (en) | 2016-08-05 | 2016-08-05 | A kind of preparation method of high-strength light dot matrix metal material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009108A (en) * | 2017-03-29 | 2017-08-04 | 燕山大学 | A kind of cold-rolled steel sheet punching net short-flow production method and equipment |
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| CN104668893A (en) * | 2013-12-02 | 2015-06-03 | 青岛永通电梯工程有限公司 | Lattice material processing flow |
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| CN107009108A (en) * | 2017-03-29 | 2017-08-04 | 燕山大学 | A kind of cold-rolled steel sheet punching net short-flow production method and equipment |
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