CN104988440A - Preparation method of aluminum-TC4 titanium alloy composite material applied in production of unmanned aerial vehicle skin - Google Patents
Preparation method of aluminum-TC4 titanium alloy composite material applied in production of unmanned aerial vehicle skin Download PDFInfo
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Abstract
The invention discloses a preparation method of an aluminum-TC4 titanium alloy composite material applied in production of an unmanned aerial vehicle skin. The volume ratio of TC4 in aluminum is 1-10%; the preparation method comprises the steps: laying a TC4 foil between two 1060 industrial pure aluminum sheet materials, heating to 280-350 DEG C, heating for 5-20 minutes, then rolling in a rolling mill with the rolling speed of 0.4-0.8 m/s and the rolling reduction of 50%, air-cooling to room temperature after rolling, and then carrying out shearing, polishing cleaning, stacking, heating and rolling on the synthesized aluminum-TC4 composite material sheet material for 15 cycles. The aluminum-TC4 titanium alloy composite material has the advantages of high strength, high hardness and excellent electrical conductivity, and has the yield strength of 120-170 MPa, the tensile strength of 140-200 MPa, the microhardness of 44-69 Hv and the specific resistance of 2.7-2.9 [mu]ohm*cm; and the aluminum-TC4 titanium alloy composite material can meet the requirements of an unmanned aerial vehicle skin material, and is applied in production of the unmanned aerial vehicle skin.
Description
Technical field
The present invention relates to a kind of preparation method being applied to the aluminium-TC4 titanium alloy composite material making unmanned plane covering.
Background technology
Along with the development of aviation, military affairs and remote sensing cause, unmanned plane is subject to paying close attention to more and more widely, and countries in the world are dropped into a large amount of human and material resources one after another and gone to develop advanced unmanned plane.Covering is one of important component part of unmanned plane, and it requires to have the physical and mechanical properties such as low density, high strength and high-wearing feature.The skin material used in the past is often difficult to reach above-mentioned requirements.Aluminum matrix composite has the advantages such as high specific strength, high elastic coefficient and high-wearing feature.Therefore, aluminum matrix composite has very large application potential on unmanned plane skin material.But the method for producing aluminum matrix composite is at present mostly squeeze casting method, pressure-free impregnation method and spray-up method, there is certain shortcoming in these methods, such as reinforcing particle disperses uneven in the base, reinforcing particle and aluminum substrate wettability poor, the economic benefit etc. that matrix material porosity is high, electric conductivity is low and lower of preparation, Processed by Accumulative Roll-bonding overcomes above-mentioned shortcoming as a kind of brand-new method, metallographic phase reinforced aluminum matrix composites can also be prepared simultaneously, and then reach the effect preventing electrostatic accumulation.The aluminum matrix composite selecting Processed by Accumulative Roll-bonding to prepare as can be seen here is applied in very few people's skin material and selects to have stronger advantage.Up to the present, this matrix material is not also applied to some extent on unmanned plane.
Summary of the invention
The object of this invention is to provide a kind of have high strength, high rigidity, superior electrical conductivity can the preparation method of aluminium-TC4 titanium alloy composite material and application.The present invention mainly utilizes commercial-purity aluminium sheet material and appropriate TC4 titanium alloy foil as raw material, by means of Processed by Accumulative Roll-bonding means, can obtain the aluminium-TC4 matrix material with excellent mechanical performance and conductivity.
Aluminium-TC matrix material of the present invention is pure titanium particle enhanced aluminum-based composite material, and the content volume ratio of TC4 in aluminium is: 1-10%.
Concrete steps are:
(1) 1060 commercial-purity aluminium sheet material surface wire brushes are polished, then clean with alcohol.
(2) be layered on by TC4 foil between two panels step (1) gained 1060 commercial-purity aluminium sheet material, the content volume ratio of TC4 in aluminium is: 1-10%.
(3) put into retort furnace after being stacked by step (2) gained two sheet material, Heating temperature is 280-350 DEG C, heats and is rolled on milling train after 5-20 minute; Do not use lubricating oil in the process of rolling, roll speed is 0.4-0.8m/s, and draught is 50%; After rolling completes, air cooling is to room temperature; Above process is the first passes, synthesizes aluminium-TC4 composite board, and the content volume ratio of TC4 in aluminium is: 1-10%.
(4) under the condition no longer adding TC4 foil, the aluminium-TC4 composite board of above-mentioned synthesis is carried out according to the method described above the shearing of 15 circulations, polishing is cleaned, stacks, heated and rolling, obtain aluminium-TC4 titanium alloy composite material.
Obtained aluminium-TC4 titanium alloy composite material is applied to and makes unmanned plane covering.
The present invention compared with prior art tool has the following advantages: aluminum matrix composite of the present invention is under the prerequisite not destroying fine aluminium excellent conductive capability, and mechanical property obtains and significantly improves.Its yield strength is 120-190MPa, tensile strength is 140-200MPa, microhardness is 44-69Hv, be respectively the 3-4.7 of annealed state 1060 commercial-purity aluminium doubly, 1.5-2.5 doubly and 1.7-2.2 doubly.During owing to preparing this kind of matrix material, do not introduce intermetallic compound, so conductivity is good, its electric conductivity is 2.7-2.9 μ Ω cm, be respectively annealed state 1060 commercial-purity aluminium, 2024 T3 state aluminium alloys, 5052 H1 state aluminium alloys, 6061 T6 state aluminium alloys, 7075 T6 state aluminium alloys 1.03-1.07 doubly, 0.49-0.5 doubly, 0.57-0.59 doubly, 0.7-0.72 doubly and 0.55-0.56 doubly.
Accompanying drawing explanation
Fig. 1 is the metallograph of the aluminium-TC4 titanium alloy composite material that the embodiment of the present invention 1 obtains.
concrete embodiment
Embodiment 1:
(1) annealed state 1060 commercial-purity aluminium sheet material (southwestern Aluminum company limited produces) the surface wire brush being of a size of 150mm × 100mm × 1mm is polished, then cleaned with alcohol.
(2) be that the TC4 foil (production of Baoji Tai Ye company limited) of 150mm × 100mm × 0.1mm is layered between two panels step (1) gained annealed state 1060 commercial-purity aluminium sheet material by 2 chip sizes.
(3) put into retort furnace after being stacked by step (2) gained two sheet material, Heating temperature is 280 DEG C, heat after 5 minutes diameter be 300mm, length be 220mm milling train on be rolled; Do not use lubricating oil in the process of rolling, roll speed is 0.6m/s, and draught is 50%; After rolling completes, air cooling is to room temperature; Above process is the first passes, synthesizes aluminium-TC4 composite board, and the content volume ratio of TC4 in aluminium is 1%.
(4) under the condition no longer adding TC4 foil, aluminium-TC4 composite board step (3) synthesized carries out 15 shearings circulated according to the method described above, polishing is cleaned, stacks, heated and rolling, obtain aluminium-TC4 titanium alloy composite material, the content volume ratio of TC4 in aluminium is 1%.
Obtained aluminium-TC4 titanium alloy composite material is applied to and makes unmanned plane covering.
The unmanned plane covering that prepared aluminium-TC4 composite board makes has the physical and mechanical properties of low density, high strength and high-wearing feature, and density is 2.718g/cm
3, the maximum tensile strength is 140MPa, and yield strength is 120MPa.
Embodiment 2:
(1) annealed state 1060 commercial-purity aluminium sheet material (southwestern Aluminum company limited produces) the surface wire brush being of a size of 150mm × 100mm × 1mm is polished, then cleaned with alcohol.
(2) be that the TC4 foil (production of Baoji Tai Ye company limited) of 150mm × 100mm × 0.1mm is layered between two panels step (1) gained annealed state 1060 commercial-purity aluminium sheet material by 10 chip sizes.
(3) put into retort furnace after being stacked by step (2) gained two sheet material, Heating temperature is 280 DEG C, heat after 5 minutes diameter be 300mm, length be 220mm milling train on be rolled; Do not use lubricating oil in the process of rolling, roll speed is 0.6m/s, and draught is 50%; After rolling completes, air cooling is to room temperature; Above process is the first passes, synthesizes aluminium-TC4 composite board, and the content volume ratio of TC4 in aluminium is 5%.
(4) under the condition no longer adding TC4 foil, aluminium-TC4 composite board step (3) synthesized carries out 15 shearings circulated according to the method described above, polishing is cleaned, stacks, heated and rolling, obtain aluminium-TC4 titanium alloy composite material, the content volume ratio of TC4 in aluminium is 5%.
Obtained aluminium-TC4 titanium alloy composite material is applied to and makes unmanned plane covering.
The unmanned plane covering density that prepared aluminium-TC4 composite board makes is 2.79g/cm
3, the maximum tensile strength is 180MPa, and yield strength is 140MPa.
Embodiment 3:
(1) annealed state 1060 commercial-purity aluminium sheet material (southwestern Aluminum company limited produces) the surface wire brush being of a size of 150mm × 100mm × 1mm is polished, then cleaned with alcohol.
(2) be that the TC4 foil (production of Baoji Tai Ye company limited) of 150mm × 100mm × 0.1mm is layered between two panels step (1) gained annealed state 1060 commercial-purity aluminium sheet material by 20 chip sizes.
(3) put into retort furnace after being stacked by step (2) gained two sheet material, Heating temperature is 280 DEG C, heat after 5 minutes diameter be 300mm, length be 220mm milling train on be rolled; Do not use lubricating oil in the process of rolling, roll speed is 0.6m/s, and draught is 50%; After rolling completes, air cooling is to room temperature; Above process is the first passes, synthesizes aluminium-TC4 composite board, and the content volume ratio of TC4 in aluminium is 10%.
(4) under the condition no longer adding TC4 foil, aluminium-TC4 composite board step (3) synthesized carries out 15 shearings circulated according to the method described above, polishing is cleaned, stacks, heated and rolling, obtain aluminium-TC4 titanium alloy composite material, the content volume ratio of TC4 in aluminium is 10%.
The unmanned plane covering density that prepared aluminium-TC4 composite board makes is 2.88g/cm
3, the maximum tensile strength is 200MPa, and yield strength is 170MPa.
Aluminium-TC4 the titanium alloy composite material finally obtained 3 embodiments stretches, hardness and resistivity measurement.Room temperature uniaxial tensile test carries out on Instron5982 mechanical property testing system, and rate of extension is: 5 × 10
-4s
-1.Microhardness performance test, at 50N, is carried out under the experiment condition of 10 seconds.Room temperature resistivity test is carried out in PPMS-9 Analysis of Physical system, the method for attachment of experiment employing standard 4 line.
The room-temperature mechanical property of AMMCs of the present invention is: tensile strength >=140MPa, yield strength >=120MPa, elongation >=5%, microhardness >=44Hv, resistivity≤2.9 μ Ω cm.The concrete data of test are in table 1.
Table 1: the aluminium-TC4 titanium alloy composite material mechanics that the present invention obtains and conducting performance test result
Claims (2)
1. a preparation method for aluminium-TC4 titanium alloy composite material, is characterized in that concrete steps are:
(1) 1060 commercial-purity aluminium sheet material surface wire brushes are polished, then clean with alcohol;
(2) be layered on by TC4 foil between two panels step (1) gained 1060 commercial-purity aluminium sheet material, the content volume ratio of TC4 in aluminium is: 1-10%;
(3) put into retort furnace after being stacked by step (2) gained two sheet material, Heating temperature is 280-350 DEG C, heats and is rolled on milling train after 5-20 minute; Do not use lubricating oil in the process of rolling, roll speed is 0.4-0.8m/s, and draught is 50%; After rolling completes, air cooling is to room temperature; Above process is the first passes, synthesizes aluminium-TC4 composite board;
(4) under the condition no longer adding TC4 foil, the aluminium-TC4 composite board of above-mentioned synthesis is carried out according to the method described above the shearing of 15 circulations, polishing is cleaned, stacks, heated and rolling, obtain aluminium-TC4 titanium alloy composite material.
2. the application of aluminium-TC4 titanium alloy composite material according to claim 1, is characterized in that aluminium-TC4 titanium alloy composite material is applied to and makes unmanned plane covering.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060032560A1 (en) * | 2003-10-29 | 2006-02-16 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| CN102703768A (en) * | 2012-03-19 | 2012-10-03 | 燕山大学 | Aluminum-tungsten composite and production method thereof |
| CN104561854A (en) * | 2015-02-01 | 2015-04-29 | 桂林理工大学 | Preparation method of aluminum-titanium composite material |
| CN104626676A (en) * | 2015-01-15 | 2015-05-20 | 燕山大学 | Laminated metal composite plate for autobody and preparation method of laminated metal composite plate |
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- 2015-07-29 CN CN201510454845.2A patent/CN104988440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060032560A1 (en) * | 2003-10-29 | 2006-02-16 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| CN102703768A (en) * | 2012-03-19 | 2012-10-03 | 燕山大学 | Aluminum-tungsten composite and production method thereof |
| CN104626676A (en) * | 2015-01-15 | 2015-05-20 | 燕山大学 | Laminated metal composite plate for autobody and preparation method of laminated metal composite plate |
| CN104561854A (en) * | 2015-02-01 | 2015-04-29 | 桂林理工大学 | Preparation method of aluminum-titanium composite material |
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