CN102689096A - Method for laser-induced self-propagating connection between carbon fiber reinforced aluminum-based composite and metal - Google Patents
Method for laser-induced self-propagating connection between carbon fiber reinforced aluminum-based composite and metal Download PDFInfo
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- CN102689096A CN102689096A CN2012101855101A CN201210185510A CN102689096A CN 102689096 A CN102689096 A CN 102689096A CN 2012101855101 A CN2012101855101 A CN 2012101855101A CN 201210185510 A CN201210185510 A CN 201210185510A CN 102689096 A CN102689096 A CN 102689096A
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Abstract
The invention discloses a method for laser-induced self-propagating connection between carbon fiber reinforced aluminum-based composite and metal, relates to a method for connecting aluminum-based composite and the metal, and aims to solve the problems of serious interface reaction between reinforced phase carbon fibers and aluminum and parent metal performance deterioration caused by overall high heating temperature in the conventional welding method. The method comprises the following steps of: 1, uniformly mixing and ball-milling titanium powder, aluminum powder and nano-carbon powder to obtain mixed powder; 2, pressing the mixed powder into an intermediate layer compact with relative density of 60 to 80 percent and thickness of 1 to 3mm, and sealing and storing the intermediate layer compact; and 3, placing the intermediate layer compact between the carbon fiber reinforced aluminum-based composite and the metal to obtain a sandwich, igniting the intermediate layer compact by using laser, and stopping a laser to finish the laser-induced self-propagating connection. The self-propagating heating intermediate layer compact is used for realizing the connection by adopting a laser ignition technology, and the joint strength reaches 30.5MPa. The method is applied to the field of connection between the carbon fiber reinforced aluminum-based composite and the metal.
Description
Technical field
The present invention relates to the method for attachment of a kind of aluminum matrix composite and metal.
Background technology
Aluminum matrix composite has high specific strength, specific stiffness, axial tensile strength and wearability; Outstanding high temperature resistance and low thermal coefficient of expansion; Favorable conductive, thermal conductivity, fatigue resistance; And under humidity or radiation environment good advantages such as dimensional stability, be a kind of desirable light-weight high-strength material.Carbon fiber reinforced aluminum matrix composite density is less than aluminium alloy, and modulus is but high 2 ~ 4 times than aluminium alloy, and its tensile strength still can keep 81% of room temperature tensile strength in the time of 250 ℃, and its fatigue ratio aluminium alloy is high by 38%.The member of processing has light weight, good rigidly, small wall thickness, advantages of higher stability, can improve place capacity and delivered payload capability greatly.With the satellite parabola antenna skeleton that carbon fiber reinforced aluminum matrix composite is processed, thermal coefficient of expansion is low, thermal conductivity good, can in than large-temperature range, keep its dimensionally stable, makes the gain efficiency of satellite parabola antenna improve 4 times.DWA company uses the graphite fibre reinforced aluminum matrix composites to be the waveguide on NASA and the Lockheed manufactured satellite.Not only axial rigidity is high, the coefficient of expansion is low for the waveguide of processing with this material, conduct electricity very well, and lighter by 30% with the compounded waveguide of graphite/epoxy one aluminium lamination than former.Along with the quickening of C/Al composite engineering progress of application, material self and and other material between connectivity problem become more and more important.
Fiber-reinforced metal matrix composite is made up of parent metal and fortifying fibre; The difficult point of welding this composite is; Under higher temperature, thermodynamic instability normally between matrix in the metal-base composites and the fortifying fibre is prone to take place chemical reaction on both contact interfaces; Generation is to the disadvantageous fragility phase of material property, and this reaction is commonly referred to interfacial reaction.The solubility of carbon in solid-state and liquid aluminium is all little, and solid solubility is 0.015%; And the solubility when 800 ℃, 1000 ℃, 1100 ℃ and 1200 ℃ is respectively 0.1%, 0.14%, 016% and 0.32%.In the temperature range of room temperature to 1670 ℃, Al and C reaction generate Al
4C
3Standard free energy of formation all be negative value.Therefore, aluminium and carbon are inconsistent on thermodynamics, and they have begun reaction at low temperatures, and just speed is very slow, along with the rising of temperature, reacts more and more violent, the Al of generation
4C
3Amount is also more and more.The temperature that both obviously have an effect is different and different according to matrix composition and carbon fiber structural, between 400 ℃～500 ℃.The welding method of welding temperature on this scope all can cause tangible interfacial reaction.Al
4C
3Be fragility acicular constituent, the boundary strength between matrix and the fortifying fibre acutely descended, the performance of severe exacerbation mother metal.At present, mainly concentrate on the research of methods such as arc welding, soldering and diffusion welding (DW), yet arc welding can cause the serious interfacial reaction of wild phase and matrix generation because bath temperature is higher, heating surface (area) (HS is bigger for the connection of fiber reinforcement aluminum matrix composite; Diffusion welding (DW) can cause the large tracts of land of interfacial reaction to take place because the connection temperature is high, heat time heating time is long too; Though the solder in the soldering can realize the connection of fiber reinforcement aluminum matrix composite, the joint of soft solder welding is highly brittle, and just possibly rupture in the cooling procedure.The present invention proposes a kind of method of attachment that can realize carbon fiber reinforced aluminum matrix composite and metal, and quality of connection is higher, makes carbon fiber reinforced aluminum matrix composite and intermetallic reach good metallurgical binding, also can not worsen the performance of mother metal simultaneously.
Summary of the invention
The objective of the invention is in order to solve the whole heating-up temperature of traditional welding method high; Cause taking place between wild phase carbon fiber and the aluminium serious interfacial reaction; Worsen the problem of mother metal performance, and provide a kind of laser-induced self-propagating reaction to connect the method for carbon fiber reinforced aluminum matrix composite and metal.
The method that a kind of laser-induced self-propagating reaction of the present invention connects carbon fiber reinforced aluminum matrix composite and metal is carried out according to following steps: one, by weight 35 ~ 39 parts titanium valve, 58 ~ 62 parts aluminium powder and 2 ~ 4 parts nano-carbon powder are mixed; Place in the ball grinder; In ball material mass ratio is that 5: 1 ratio is put into abrading-ball; Under the condition of argon shield, the speed ball milling 2 ~ 3h with 300 ~ 500r/min obtains mixed-powder; Two, the mixed-powder that step 1 is obtained be pressed into relative density be 60% ~ 80% and thickness be the intermediate layer pressed compact of 1 ~ 3mm, sealing is preserved; Three, the intermediate layer pressed compact that step 2 is obtained places and is assembled into " sandwich " formula assembly parts between carbon fiber reinforced aluminum matrix composite and the metal, assembly parts clipped to be put in the laser equipment then, and be under the condition of 5MPa at pressure; The hot spot of laser is aimed at the intermediate layer pressed compact; Ignite, treat to ignite in the intermediate layer after, close laser instrument immediately; Utilize intermediate layer self liberated heat, promptly accomplish being connected of carbon fiber reinforced aluminum matrix composite and metal.
Advantage of the present invention: one, utilization of the present invention is developed voluntarily spreads the heat release intermediate layer certainly; And adopt laser-induced combustion technological; Under normal temperature, atmospheric environment, can realize being connected of fiber reinforcement aluminium carbon fiber reinforced aluminum matrix composite and metal; Simultaneously can not influence performance of composites, well keep the various good characteristics of mother metal.Two, utilize the intermediate layer among the present invention to connect carbon fiber reinforced aluminum matrix composite and metal, intermediate layer and both sides mother metal reach good metallurgical binding, and quality of connection is good, and strength of joint can reach 30.5MPa.
It is to utilize the heat release of SHS reaction and the technology that product connects mother metal to be welded thereof that self propagating high temperature connects (being called for short SHS connects).The present invention adopts homemade heat release intermediate layer, utilizes the laser-induced combustion intermediate layer, and the realization carbon fiber reinforced aluminum matrix composite is connected with metal.
Adopt homemade powder intermediate layer among the present invention; Form by certain weight proportion by Ti powder, Al powder, C powder, be pressed into the thick cylinder of 1 ~ 2mm, be placed between C/Al composite and the metal; Be assembled into " sandwich " formula structure; Be placed under the laser instrument and ignite, apply certain pressure simultaneously, realize connecting.The present invention utilizes Ti powder and the burning of C powder in the homemade powder intermediate layer to emit a large amount of heat, and C/Al composite and metal that partial melting contacts with the intermediate layer make the two that metallurgical binding take place, and realize connecting.C in the connection procedure
f/ Al mother metal is not heated, and therefore can not influence C
f/ Al performance of composites has well kept the various good characteristics of mother metal.
Description of drawings
Fig. 1 is the laser-induced self-propagating reaction installation diagram; Wherein, 1 is laser, and 2 is the graphite bolt, and 3 is aluminum matrix composite, and 4 is the intermediate layer pressed compact, and 5 is metal, and 6 is the graphite jig;
Fig. 2 is the weld seam macro morphology figure of carbon fiber reinforced aluminum matrix composite and metal; Wherein, the left side is C among the figure
f/ Al composite, the centre is the intermediate layer pressed compact, the right side is the TiAl alloy.
The specific embodiment
Technical scheme of the present invention is not limited to the following cited specific embodiment, also comprises the combination in any between each specific embodiment.
The specific embodiment one: a kind of laser-induced self-propagating reaction of this embodiment connects the method for carbon fiber reinforced aluminum matrix composite and metal to carry out according to following steps: one, by weight 35 ~ 39 parts titanium valve, 58 ~ 62 parts aluminium powder and 2 ~ 4 parts nano-carbon powder are mixed; Place in the ball grinder; In ball material mass ratio is that 5: 1 ratio is put into abrading-ball; Under the condition of argon shield, the speed ball milling 2 ~ 3h with 300 ~ 500r/min obtains mixed-powder; Two, the mixed-powder that step 1 is obtained be pressed into relative density be 60% ~ 80% and thickness be the intermediate layer pressed compact of 1 ~ 3mm, sealing is preserved; Three, the intermediate layer pressed compact that step 2 is obtained places and is assembled into " sandwich " formula assembly parts between carbon fiber reinforced aluminum matrix composite and the metal, assembly parts clipped to be put in the laser equipment then, and be under the condition of 5MPa at pressure; The hot spot of laser is aimed at the intermediate layer pressed compact; Ignite, treat to ignite in the intermediate layer after, close laser instrument immediately; Utilize intermediate layer self liberated heat, promptly accomplish being connected of carbon fiber reinforced aluminum matrix composite and metal.
The advantage of this embodiment: one, the utilization of this embodiment is developed voluntarily spreads the heat release intermediate layer certainly; And adopt laser-induced combustion technological; Under normal temperature, atmospheric environment, can realize being connected of carbon fiber reinforced aluminum matrix composite and metal; Simultaneously can not influence performance of composites, well keep the various good characteristics of mother metal.Two, utilize the intermediate layer in this embodiment to connect carbon fiber reinforced aluminum matrix composite and metal, intermediate layer and both sides mother metal reach good metallurgical binding, and quality of connection is good, and strength of joint can reach 30.5MPa.
The specific embodiment two: what this embodiment and the specific embodiment one were different is: the described nano-carbon powder granularity of step 1 is 12500 orders.Other is identical with the specific embodiment one.
The specific embodiment three: what this embodiment and the specific embodiment one to two were different is: the described titanium valve of step 1 is 325 ~ 1000 orders, and aluminium powder is 325 ~ 1000 orders.Other is identical with the specific embodiment one to two.
Through following verification experimental verification effect of the present invention:
A kind of laser-induced self-propagating reaction of this test connects the method for carbon fiber reinforced aluminum matrix composite and metal to carry out according to following steps: one, take by weighing the titanium valve of 3.7g, the aluminium powder of 6.0g and the nano-carbon powder of 0.3g and mix; Place in the ball grinder; In ball material mass ratio is that 5: 1 ratio is put into abrading-ball; Under the condition of argon shield, the speed ball milling 2.5h with 300r/min obtains mixed-powder; Two, the mixed-powder that step 1 is obtained be pressed into relative density be 70% and thickness be the intermediate layer pressed compact of 1mm, sealing is preserved; Three, the intermediate layer pressed compact that step 2 is obtained places and is assembled into " sandwich " formula assembly parts between carbon fiber reinforced aluminum matrix composite and the metal, assembly parts clipped to be put in the laser equipment (sketch map is as shown in Figure 1) then, and be under the condition of 5MPa at pressure; The hot spot of laser is aimed at the intermediate layer pressed compact; Ignite, treat to ignite in the intermediate layer after, close laser instrument immediately; Utilize intermediate layer self liberated heat, promptly accomplish being connected of carbon fiber reinforced aluminum matrix composite and metal.
The carbon fiber reinforced aluminum matrix composite of this test is C
f/ Al composite is bought from Materials Academy special material research institute of Harbin Institute of Technology; Metal is the TiAl alloy.
Graphite jig in this Test Drawing 1 is a semi-closed structure; Leave a hole in the middle of the graphite cover of top layer through laser facula; The pressurization of graphite bolt is adopted on both sides, because it is too fast to scatter and disappear from the heat that spreads, so this test adopts semi-enclosed structure can effectively organize the loss of heat.
Material after this test connection is carried out back scattering observe under SEM, the result is as shown in Figure 2, can be known by Fig. 2; The intermediate layer has reached good with the both sides mother metal and has combined; No significant defect generates in joint, and TiAl alloy one side has continuous conversion zone to generate, with carbon fiber reinforced aluminum matrix composite one side; Aluminum substrate in intermediate layer and the composite is because thermal expansion coefficient difference is less, and what therefore combine is also comparatively tight.
Claims (3)
1. a laser-induced self-propagating reaction connects the method for carbon fiber reinforced aluminum matrix composite and metal; The method that it is characterized in that laser-induced self-propagating reaction connection carbon fiber reinforced aluminum matrix composite and metal is carried out according to following steps: one, by weight 35 ~ 39 parts titanium valve, 58 ~ 62 parts aluminium powder and 2 ~ 4 parts nano-carbon powder are mixed; Place in the ball grinder; In ball material mass ratio is that 5: 1 ratio is put into abrading-ball; Under the condition of argon shield, the speed ball milling 2 ~ 3h with 300 ~ 500r/min obtains mixed-powder; Two, the mixed-powder that step 1 is obtained be pressed into relative density be 60% ~ 80% and thickness be the intermediate layer pressed compact of 1 ~ 3mm, sealing is preserved; Three, the intermediate layer pressed compact that step 2 is obtained places and is assembled into " sandwich " formula assembly parts between carbon fiber reinforced aluminum matrix composite and the metal, assembly parts clipped to be put in the laser equipment then, and be under the condition of 5MPa at pressure; The hot spot of laser is aimed at the intermediate layer pressed compact; Ignite, treat to ignite in the intermediate layer after, close laser instrument immediately; Utilize intermediate layer self liberated heat, promptly accomplish being connected of carbon fiber reinforced aluminum matrix composite and metal.
2. a kind of laser-induced self-propagating reaction according to claim 1 connects the method for carbon fiber reinforced aluminum matrix composite and metal, it is characterized in that the described nano-carbon powder granularity of step 1 is 12500 orders.
3. a kind of laser-induced self-propagating reaction according to claim 1 connects the method for carbon fiber reinforced aluminum matrix composite and metal, it is characterized in that the described titanium valve of step 1 is 325 ~ 1000 orders, and aluminium powder is 325 ~ 1000 orders.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056507A (en) * | 2012-12-28 | 2013-04-24 | 哈尔滨工业大学 | Fixture capable of continuously adjusting pressure and special for self-propagating connection |
| CN103586582A (en) * | 2013-11-28 | 2014-02-19 | 哈尔滨工业大学 | Method for connecting Cf/Al composite materials and TiAl through laser ignition self-propagating reaction auxiliary brazing |
| CN103600169A (en) * | 2013-11-28 | 2014-02-26 | 哈尔滨工业大学 | Method for connecting Cf/Al composite with TiAl based on laser ignition and self-propagating reaction |
| CN103862161A (en) * | 2014-03-18 | 2014-06-18 | 哈尔滨工业大学 | Method for connecting aluminum matrix composite with titanium alloy |
| CN104668808A (en) * | 2015-01-29 | 2015-06-03 | 山东浪潮华光光电子股份有限公司 | High-purity indium fiber composited reinforcing solder and preparation method thereof |
| CN104708224A (en) * | 2015-01-29 | 2015-06-17 | 山东浪潮华光光电子股份有限公司 | Short filament reinforced high-purity indium composite solder and preparation method thereof |
| CN104842064A (en) * | 2015-05-14 | 2015-08-19 | 哈尔滨工业大学 | Method for specially connecting Cf/Al composite material with TiAl |
| CN105237791A (en) * | 2015-10-14 | 2016-01-13 | 哈尔滨工业大学 | Method for preparing cladding coating on surface of carbon fiber reinforced thermo plastic by laser-assisted self-propagation high-temperature synthesis (SHS) technology |
| CN106238851A (en) * | 2016-08-21 | 2016-12-21 | 北京工业大学 | A kind of nano-multilayer film self-propagating reaction is applied to connect TiNi SMA and titanium or the method for titanium alloy |
| CN106702375A (en) * | 2016-12-05 | 2017-05-24 | 天津工业大学 | Laser-induction complex melting deposition device for fiber-reinforced metal matrix composite material |
| CN108339987A (en) * | 2018-03-01 | 2018-07-31 | 常熟理工学院 | The connection method of carbon fibre composite and magnesium alloy materials |
| CN108406147A (en) * | 2018-01-23 | 2018-08-17 | 武汉理工大学 | A kind of connection method of carbon fibre composite and metal |
| CN110587112A (en) * | 2019-09-12 | 2019-12-20 | 湖北工业大学 | Welding method between metal plates |
| CN115319267A (en) * | 2022-08-19 | 2022-11-11 | 国家高速列车青岛技术创新中心 | High-strength alloy heterogeneous lap joint and low-heat-input preparation method thereof |
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| CN103056507B (en) * | 2012-12-28 | 2015-04-15 | 哈尔滨工业大学 | Fixture capable of continuously adjusting pressure and special for self-propagating connection |
| CN103056507A (en) * | 2012-12-28 | 2013-04-24 | 哈尔滨工业大学 | Fixture capable of continuously adjusting pressure and special for self-propagating connection |
| CN103586582A (en) * | 2013-11-28 | 2014-02-19 | 哈尔滨工业大学 | Method for connecting Cf/Al composite materials and TiAl through laser ignition self-propagating reaction auxiliary brazing |
| CN103600169A (en) * | 2013-11-28 | 2014-02-26 | 哈尔滨工业大学 | Method for connecting Cf/Al composite with TiAl based on laser ignition and self-propagating reaction |
| CN103862161A (en) * | 2014-03-18 | 2014-06-18 | 哈尔滨工业大学 | Method for connecting aluminum matrix composite with titanium alloy |
| CN103862161B (en) * | 2014-03-18 | 2015-08-19 | 哈尔滨工业大学 | A kind of method connecting aluminum matrix composite and titanium alloy |
| CN104668808A (en) * | 2015-01-29 | 2015-06-03 | 山东浪潮华光光电子股份有限公司 | High-purity indium fiber composited reinforcing solder and preparation method thereof |
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| CN104842064A (en) * | 2015-05-14 | 2015-08-19 | 哈尔滨工业大学 | Method for specially connecting Cf/Al composite material with TiAl |
| CN105237791B (en) * | 2015-10-14 | 2018-07-03 | 哈尔滨工业大学 | A kind of method for preparing cladding coating on fibre reinforced thermoplastic composite surface using laser assisted SHS techniques |
| CN105237791A (en) * | 2015-10-14 | 2016-01-13 | 哈尔滨工业大学 | Method for preparing cladding coating on surface of carbon fiber reinforced thermo plastic by laser-assisted self-propagation high-temperature synthesis (SHS) technology |
| CN106238851A (en) * | 2016-08-21 | 2016-12-21 | 北京工业大学 | A kind of nano-multilayer film self-propagating reaction is applied to connect TiNi SMA and titanium or the method for titanium alloy |
| CN106702375A (en) * | 2016-12-05 | 2017-05-24 | 天津工业大学 | Laser-induction complex melting deposition device for fiber-reinforced metal matrix composite material |
| CN106702375B (en) * | 2016-12-05 | 2019-01-01 | 天津工业大学 | A kind of device of laser-inductive composite melt deposit fiber enhancing metal-base composites |
| CN108406147A (en) * | 2018-01-23 | 2018-08-17 | 武汉理工大学 | A kind of connection method of carbon fibre composite and metal |
| CN108406147B (en) * | 2018-01-23 | 2019-10-01 | 武汉理工大学 | A kind of connection method of carbon fibre composite and metal |
| CN108339987A (en) * | 2018-03-01 | 2018-07-31 | 常熟理工学院 | The connection method of carbon fibre composite and magnesium alloy materials |
| CN110587112A (en) * | 2019-09-12 | 2019-12-20 | 湖北工业大学 | Welding method between metal plates |
| CN110587112B (en) * | 2019-09-12 | 2022-02-01 | 湖北工业大学 | Welding method between metal plates |
| CN115319267A (en) * | 2022-08-19 | 2022-11-11 | 国家高速列车青岛技术创新中心 | High-strength alloy heterogeneous lap joint and low-heat-input preparation method thereof |
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Application publication date: 20120926 |