CN105618885B - A method of reinforced phase is formed by regulation and strengthens composite weld structural material - Google Patents
A method of reinforced phase is formed by regulation and strengthens composite weld structural material Download PDFInfo
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- CN105618885B CN105618885B CN201610180155.7A CN201610180155A CN105618885B CN 105618885 B CN105618885 B CN 105618885B CN 201610180155 A CN201610180155 A CN 201610180155A CN 105618885 B CN105618885 B CN 105618885B
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/06—Soldering, e.g. brazing, or unsoldering making use of vibrations, e.g. supersonic vibrations
-
- 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
- B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
-
- 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
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
一种通过调控形成增强相强化复合焊缝结构材料的方法，步骤如下：首先将待焊母材、复合材料和钎料的表面分别清洗，去除氧化膜、污渍和油脂，烘干备用；然后将上述材料按照“母材/钎料/复合材料/钎料/母材”的结构组装，然后放入超声波辅助焊接装置中，加热、保温同时施加超声波，在达到预定温度、超声场条件下，开启加压装置进行焊接，焊接完成后待温度下降至室温，关闭超声作用，取出焊件，得到增强相强化复合焊缝结构材料。本发明的优点和积极效果是：该方法通过调控形成增强相强化复合焊缝结构材料，能够进行金属、非金属的焊接，结合界面反应可控、残余热应力较小、结合强度较高。
A method for forming a reinforcing phase-strengthened composite weld structural material by regulating and controlling, the steps are as follows: first, the surfaces of the base material to be welded, the composite material and the brazing filler metal are respectively cleaned to remove oxide films, stains and grease, and dried for later use; The above-mentioned materials are assembled according to the structure of "base metal/brazing material/composite material/brazing material/base material", and then put into the ultrasonic assisted welding device, heating and heat preservation while applying ultrasonic waves, when the predetermined temperature and ultrasonic field conditions are reached, turn on The pressure device is used for welding, and after the welding is completed, the temperature is lowered to room temperature, the ultrasonic action is turned off, and the weldment is taken out to obtain a reinforced phase-strengthened composite welding seam structural material. The advantages and positive effects of the invention are as follows: the method can form a reinforcing phase-strengthened composite weld structural material through regulation and control, and can perform metal and non-metal welding, with controllable bonding interface reaction, small residual thermal stress and high bonding strength.
Description
Technical field
It is especially a kind of that reinforced phase reinforcing Combined Welding is formed by regulation the present invention relates to material machine-shaping manufacturing field
The method of crack structure material.
Background technique
The high-strength, reliable of material welds and connect, and leads in automobile, ship, aerospace, petrochemical industry and daily product etc.
Domain has a wide range of applications.However, it is many tired to realize that high-strength, the reliable welding of material exists in cases of engineering
Difficulty, such as: it is easy in different-metal material welding connector there are brittle intermetallic layer, residual thermal stress is larger and interface cohesion
The problems such as weak, ceramic material welding point are easy to produce in conjunction with the problems such as weak, residual stress is big.These problems seriously affect
Material generates high-strength, reliable connection.It, can be certain by improving the thinkings such as technique from the point of view of current present Research both at home and abroad
Degree alleviates these problems, it is contemplated that the factors such as joint form, production flexibility, welding cost, in many occasions, these methods are suitable
It is somewhat limited with property, effect needs to be further increased.
By taking the welding of different metal materials and connection as an example, different-metal material welding is to make two kinds or two kinds using welding technique
The different metal of the above physics, chemistry, mechanical property realizes firm metallurgical bonding on interface and is formed and be reliably connected.Although
Each metal still maintains respective primary characteristic, but its performance is more superior than single metal, therefore, dissimilar metal connection combine always by
To most attention.
The welding and connection method of dissimilar metal, main includes soldering, fusion welding and Solid-State Welding etc..The basic technology of soldering
It is: prepares base material and solder as requested, then use external heat source, by brazing filler metal melts, realizes interface cohesion after solder solidification.
This method needs to abolish the oxidation film of master surface using brazing flux or atmosphere.The basic technology of fusion welding is: preparing as requested
Then base material and solder use external heat source, base material or base material and packing material are melted, and interface knot is realized after weld seam solidification
It closes.The basic technology of Pressure Welding is: preparing base material and solder as requested, then uses external heat source, base material is non-fusible, passes through
Applying pressure promotes interface to realize combination.
Main problem present in above-mentioned technique is: in welding process, dissimilar metal is swift in response, acutely, be difficult to avoid that,
The weld metal zone brittle intermetallic thing of generation is difficult to the effect of meeting with stresses, and be easy to cause cracking, reduces the mechanical property of welding point.
At present reduce dissimilar material intermetallic compound influence thinking be generally adjust welding parameter, optimization technique, reduction heat input,
And then the generation of intermetallic compound is reduced, but dissimilar metal is swift in response, and thoroughly avoids more difficult.Dissimilar material dissolves each other
Property it is poor, in fusion welding, liquid phase separation, when crystallisation by cooling, causes weld seam composition uneven, is easy to happen cracking；Thermal expansion coefficient is not
Together, weld seam is also easy to produce stress, causes welding deformation, leads to crack initiation；Thermal conductivity is different, and crystallization condition deteriorates, and easily causes crystalline substance
Grain roughening；Metal material surface secondary oxidation film growth rapidly, can produce be mingled with, crackle, influence interface cohesion；Metal watch before welding
Face cleaning technology is cumbersome, can personnel be caused with toxic side effect using brazing flux in welding process, after-welding brazing flux cleaning is difficult, easily to right
The generation adverse effect of combination interface.
Summary of the invention
The purpose of the present invention is there are problem, provide a kind of to form reinforced phase by regulation and strengthen composite weld for above-mentioned
The method of structural material, this method under the conditions of ultrasonic field, be used in combination by pressurization, heating, welds and connect the formation enhancing of base material weld seam
The composite weld structure mutually strengthened, combination interface reaction is controllable, and bond strength is high, and residual thermal stress is small.
Technical solution of the present invention:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, steps are as follows:
1) by base material surface clean to be welded, oxide film dissolving, spot and grease is removed, is dried for standby；
2) by composite material surface polishing, polishing, cleaning, oxide film dissolving, spot and grease is removed, is dried for standby；
3) by the polishing of solder surface, polishing, cleaning, oxide film dissolving, spot and grease is removed, is dried for standby；
4) by treated base material, solder metal alloy and composite material to be welded, according to " base material/solder/composite wood
The structure of material/solder/base material " assembles, and is then placed in ultrasonic wave auxiliary welding device, is heated to 50-2000 DEG C and keeps the temperature 1-
60min, while applying ultrasonic wave 0.1-120s, the vibration frequency of ultrasonic wave is 1 × 104-1×109Hz, ultrasonic power it is defeated
Power is 0.01-5kW out, under the conditions of reaching predetermined temperature, ultrasonic field, opens pressurizing device and is welded, tool heads output
Amplitude is 0.01-20 μm, operating pressure 0.01-5.0Mpa, drops to room temperature to temperature after the completion of welding, closes ultrasonication,
Weldment is taken out, reinforced phase is obtained and strengthens composite weld structural material.
The base material to be welded is aluminium, steel, Al2O3Or ceramics.
The composite material is that silicon particle enhances composite material or silicon carbide fibre enhancing composite material.
The solder is Zn-xAl (x=0-50), Sn-xZn (x=0-80), Sn-In, Sn-Bi, Sn-Ag-Cu, Sn-Pb
Or BAl88Si (9-10.5) Mg (1-2) (fusing point 591).
The advantages and positive effects of the present invention are:
This method forms reinforced phase by regulation and strengthens composite weld structural material, is able to carry out metal, nonmetallic weldering
It connects, combination interface reaction is controllable, residual thermal stress is smaller, bond strength is higher.
Detailed description of the invention
Fig. 1 is the welding schematic diagram using particulate reinforced composite.
Fig. 2 is individual particle enhancing composite weld structure.
Fig. 3 enhances the welding schematic diagram of composite material using two kinds of particles.
Fig. 4 is double particle enhancing composite weld structures.
Fig. 5 is the welding schematic diagram using short fiber reinforced composite.
Fig. 6 is short fiber reinforced composite weld structure.
Fig. 7 is the welding schematic diagram using short fiber reinforced composite and particulate reinforced composite.
Fig. 8 is staple fiber-particle joint enhancing composite weld structure.
Specific embodiment
The technical solution of the present invention is not limited to the following list, further includes between each specific embodiment
Combination.
Embodiment 1:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, steps are as follows:
1) base material aluminium to be welded and steel surface are cleaned, removes oxide film dissolving, spot and grease, is dried for standby；
2) by the polishing of silicon particle enhancing composite material surface, polishing, cleaning, oxide film dissolving, spot and grease is removed, is dried standby
With；
3) by the polishing of the surface solder Sn-9Zn, polishing, cleaning, oxide film dissolving, spot and grease is removed, is dried for standby；
4) by treated base material, solder metal alloy and composite material to be welded, according to " aluminium/solder/composite wood
The structure of material/solder/steel " assembles, as shown in Figure 1, being then placed in ultrasonic wave auxiliary welding device, being heated to 260 DEG C and protecting
Warm 60min, while applying ultrasonic wave, the vibration frequency of ultrasonic wave is 100kHz, amplitude is 20 μm, and ultrasonic treatment time is
The output power of 30s, ultrasonic power are 5kW, under the conditions of reaching predetermined temperature, ultrasonic field, open pressurizing device and are welded
It connects, it is 10 μm, operating pressure 3.5MPa that tool heads, which export amplitude, drops to room temperature to temperature after the completion of welding, closes ultrasound and makees
With taking-up weldment obtains reinforced phase and strengthens composite weld structural material.
It is as shown in Figure 2 that individual particle enhances composite weld structure.
Embodiment 2:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: used base material be titanium and aluminium oxide ceramics.
Embodiment 3:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: used solder be tinbase, zinc-base, silver-based, copper-based or acieral solder.
Embodiment 4:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: supersonic frequency be 2 × 104-1×109Hz, it is 0.01-20 μm that tool heads, which export amplitude, ultrasonic power
Output power be 0.01-5kW, operating pressure 0.01-5.0Mpa.
Embodiment 5:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: operating pressure size be 0.0001-100Mpa.
Embodiment 6:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: heating temperature be 50-2000 DEG C.
Embodiment 7:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: welded using silicon particle and silicon carbide two kinds of particles enhancing composite material as middle layer, such as
Shown in Fig. 3, double particle enhancing composite weld structures are obtained, as shown in Figure 4.
Embodiment 8:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: welded using carborundum brief fiber enhancing composite material as middle layer, as shown in figure 5, obtaining
Short fiber reinforced composite weld structure, as shown in Figure 6.
Embodiment 9:
A method of reinforced phase is formed by regulation and strengthens composite weld structural material, step and the basic phase of embodiment 1
Together, the difference is that: use carborundum brief fiber enhancing composite material and silicon particle enhancing composite material as middle layer
It is welded, as shown in fig. 7, having obtained staple fiber-particle joint enhancing composite weld structure, as shown in Figure 8.
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610180155.7A CN105618885B (en) | 2016-03-25 | 2016-03-25 | A method of reinforced phase is formed by regulation and strengthens composite weld structural material |
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| CN201610180155.7A CN105618885B (en) | 2016-03-25 | 2016-03-25 | A method of reinforced phase is formed by regulation and strengthens composite weld structural material |
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Families Citing this family (5)
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| CN106735833A (en) * | 2016-12-26 | 2017-05-31 | 天津理工大学 | Sound based on eutectic reaction causes instant liquid-phase diffusion welding welding method |
| CN110293304B (en) * | 2019-06-04 | 2021-09-28 | 南京理工大学 | SiCpElectron beam welding method for particle reinforced aluminum-based composite material |
| CN112895474A (en) * | 2019-12-03 | 2021-06-04 | 中国商用飞机有限责任公司 | Method for connecting fiber reinforced thermoplastic composite material and metal |
| CN113510327B (en) * | 2021-06-23 | 2022-12-13 | 上海空间推进研究所 | Dissimilar material brazing gap control method and system |
| CN118023710B (en) * | 2024-01-12 | 2024-11-01 | 北京科技大学 | Steel/aluminum dissimilar metal welding method for reinforcing and toughening steel surface by adding short fibers |
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Patent Citations (7)
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|---|---|---|---|---|
| JPH08164477A (en) * | 1994-12-14 | 1996-06-25 | Hitachi Kasei Shoji Kk | Ultrasonic solder joining method |
| JP2003238268A (en) * | 2002-02-15 | 2003-08-27 | Hitachi Ltd | Bonding method of metal and insulator and vacuum circuit breaker using the same |
| US7806994B2 (en) * | 2004-05-04 | 2010-10-05 | S-Bond Technologies, Llc | Electronic package formed using low-temperature active solder including indium, bismuth, and/or cadmium |
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