CN105618885A - Method for forming reinforced-phase-strengthened composite welding seam structural material by regulating - Google Patents
Method for forming reinforced-phase-strengthened composite welding seam structural material by regulating Download PDFInfo
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- CN105618885A CN105618885A CN201610180155.7A CN201610180155A CN105618885A CN 105618885 A CN105618885 A CN 105618885A CN 201610180155 A CN201610180155 A CN 201610180155A CN 105618885 A CN105618885 A CN 105618885A
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- composite
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Classifications
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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
Abstract
The invention discloses a method for forming reinforced-phase-strengthened composite welding seam structural material by regulating. The method comprises the following steps: separately cleaning the surfaces of a to-be-welded parent material, a composite material and brazing filler metal to remove an oxide film, stains and grease, and drying the to-be-welded parent material, the composite material and the brazing filler metal for later use; and then, assembling the materials according to a structure of parent material/brazing filler metal/composite material/brazing filler metal/parent material, putting the assembled materials into an ultrasonic auxiliary welding device, applying ultrasonic waves while heating and preserving the heat, starting a pressurizing device to carry out welding in case of reaching a predetermined temperature and ultrasonic fields, stopping ultrasonic action while the temperature is reduced to the room temperature after welding, and taking out a welded part, thereby obtaining the reinforced-phase-strengthened composite welding seam structural material. The method has the advantages and the positive effects that: the method is used for forming reinforced-phase-strengthened composite welding seam structural material by regulating, welding for metal and nonmetal can be carried out, bonding interface reaction is controllable, residual thermal stress is relatively small, and the bonding strength is relatively high.
Description
Technical field
The present invention relates to the shaping manufacture field of materials processing, particularly a kind of method being formed wild phase strengthening composite weld structured material by regulation and control.
Background technology
The welding high-strength, reliable of material, with being connected, has a wide range of applications in fields such as automobile, boats and ships, aerospace, petrochemical complex and daily products. But, in cases of engineering, there is a lot of difficulty in the welding high-strength, reliable realizing material, such as: the problem such as easily have in dissimilar metal welding joint that compound layer between friable metal, residual thermal stress be relatively big and interface cohesion is weak, stupalith welding joint easily produces to combine the problems such as weak, unrelieved stress is big. These problems seriously affect material produce high-strength, connect reliably. From domestic and international present Research at present, by improving the thinkings such as technique, it is possible to a certain degree alleviate these problems, consider joint form, produce the factors such as flexibility, welding cost, in many occasions, these method applicabilities are by restriction to a certain extent, and effect needs to be improved further.
For the welding of different metal materials be connected, dissimilar metal welding be utilize welding technique to make metal that two or more physics, chemistry, mechanical property are different realize on interface firmly metallurgical binding and form reliable connection. Although each metal still keeps respective primary characteristic, but its performance is more superior than single metal, and therefore, dissimilar metal connects combination and is subject to most attention always.
The welding of dissimilar metal and method of attachment, mainly comprise soldering, melting and Solid-State Welding etc. The basic technique of soldering is: preparing mother metal and solder as requested, then use external heat source, by brazing filler metal melts, solder realizes interface cohesion after solidifying. The method needs to use brazing flux or atmosphere, abolishes the oxide film of master surface. The basic technique of melting is: prepares mother metal and solder as requested, then uses external heat source, and by mother metal or mother metal and packing material fusing, weld seam realizes interface cohesion after solidifying. The basic technique of pressure welding is: preparing mother metal and solder as requested, then use external heat source, mother metal is non-fusible, impels interface to realize combining by applying pressure.
The main problem existed in above-mentioned technique is: in welding process, and dissimilar metal reacts rapidly, acutely, is difficult to avoid, and between the friable metal of generation, compound is difficult to bear stress, it is easy to cause cracking, reduces the mechanical property of welding joint. The thinking reducing the impact of foreign material intermetallic compound at present is generally adjustment welding setting, optimizes technique, falls low_input_power and then reduce the generation of intermetallic compound, but dissimilar metal reaction is rapidly, thoroughly avoids comparatively difficulty. Foreign material mutual solubility is poor, and when melting, liquid phase separation, causes weld seam composition uneven, it is easy to ftracture during crystallisation by cooling; Thermal expansivity is different, and weld seam easily produces stress, causes welding distortion, causes crack initiation; Thermal conductivity is different, and crystallization condition worsens, and easily causes grain coarsening; The growth of metal material surface secondary oxidation film rapidly, can produce to be mingled with, crackle, affects interface cohesion; Welding front metallic surface cleaning technology loaded down with trivial details, use brazing flux personnel can be caused toxic side effect in welding process, after-welding brazing flux cleaning difficulty, easily to the generation detrimentally affect to bonding interface.
Summary of the invention
It is an object of the invention to for above-mentioned existing problems, a kind of method being formed wild phase strengthening composite weld structured material by regulation and control is provided, the method is when ultrasonic field, pressurization, heat and use, the composite weld structure welded and be connected the formation wild phase strengthening of mother metal weld seam, bonding interface reaction is controlled, and bonding strength height, residual thermal stress is little.
The technical scheme of the present invention:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is as follows:
1) by mother metal surface cleaning to be welded, oxide film, spot and grease is removed, dry for standby;
2) by composite material surface polishing, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
3) by solder surface finish, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
4) by the mother metal to be welded after above-mentioned process, braze metal alloy and matrix material, assemble according to the structure of " mother metal/solder/matrix material/solder/mother metal ", then ultrasonic assistant welding plant is put into, it is heated to 50-2000 DEG C and it is incubated 1-60min, applying ultrasonic wave 0.1-120s, hyperacoustic vibrational frequency is 1 �� 10 simultaneously4-1��109Hz, the output rating of ultrasonic power is 0.01-5kW, when reaching preset temperature, ultrasonic field, opening pressurizing device to weld, tool heads exports amplitude and is 0.01-20 ��m, operating pressure 0.01-5.0Mpa, treat after having welded that temperature decrease is to room temperature, close ultrasonication, take out weldment, be enhanced and strengthen composite weld structured material mutually.
Described mother metal to be welded is aluminium, steel, Al2O3Or pottery.
Described matrix material is silicon grain reinforced composite or silicon carbide fiber reinforced composite.
Described 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).
Advantage and the positively effect of the present invention be:
The method forms wild phase strengthening composite weld structured material by regulation and control, it is possible to carrying out metal, nonmetal welding, bonding interface reaction is controlled, residual thermal stress is less, bonding strength is higher.
Accompanying drawing explanation
Fig. 1 is the welding schematic diagram adopting particulate reinforced composite.
Fig. 2 is that single particle strengthens composite weld structure.
Fig. 3 adopts the welding schematic diagram of two kinds of particulate reinforced composites.
Fig. 4 is two particle reinforce composite weld structures.
Fig. 5 is the welding schematic diagram adopting short fiber reinforced composite.
Fig. 6 is short fiber reinforced composite weld structure.
Fig. 7 is the welding schematic diagram adopting short fiber reinforced composite and particulate reinforced composite.
Fig. 8 is that staple fibre-particle combines enhancing composite weld structure.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the combination between each embodiment.
Embodiment 1:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is as follows:
1) by mother metal aluminium to be welded and steel surface cleaning, oxide film, spot and grease is removed, dry for standby;
2) by silicon grain reinforced composite surface finish, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
3) by solder Sn-9Zn surface finish, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
4) by the mother metal to be welded after above-mentioned process, braze metal alloy and matrix material, assemble according to the structure of " aluminium/solder/matrix material/solder/steel ", as shown in Figure 1, then ultrasonic assistant welding plant is put into, it is heated to 260 DEG C and it is incubated 60min, apply ultrasonic wave simultaneously, hyperacoustic vibrational frequency is 100kHz, amplitude is 20 ��m, ultrasonic treatment time is 30s, the output rating of ultrasonic power is 5kW, reaching preset temperature, when ultrasonic field, open pressurizing device to weld, it is 10 ��m that tool heads exports amplitude, operating pressure 3.5MPa, treat after having welded that temperature decrease is to room temperature, close ultrasonication, take out weldment, it is enhanced and strengthens composite weld structured material mutually.
Single particle strengthens composite weld structure as shown in Figure 2.
Embodiment 2:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, and difference is: the mother metal used is titanium and alumina-ceramic.
Embodiment 3:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, and difference is: the solder used is tin base, zinc-base, money base, copper base or aluminum base alloy solder.
Embodiment 4:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, and difference is: ultrasonic frequency is 2 �� 104-1��109Hz, tool heads exports amplitude and is 0.01-20 ��m, and the output rating of ultrasonic power is 0.01-5kW, operating pressure 0.01-5.0Mpa.
Embodiment 5:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, and difference is: operating pressure size is 0.0001-100Mpa.
Embodiment 6:
Formed a method for wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, and difference is: Heating temperature is 50-2000 DEG C.
Embodiment 7:
A kind of method being formed wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, difference is: have employed silicon grain and silicon carbide two kinds of particulate reinforced composites weld as middle layer, as shown in Figure 3, obtain two particle reinforce composite weld structure, as shown in Figure 4.
Embodiment 8:
A kind of method being formed wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, difference is: adopt carborundum brief fiber reinforced composite to weld as middle layer, as shown in Figure 5, obtain short fiber reinforced composite weld structure, as shown in Figure 6.
Embodiment 9:
A kind of method being formed wild phase strengthening composite weld structured material by regulation and control, step is substantially the same manner as Example 1, difference is: have employed carborundum brief fiber reinforced composite and silicon grain reinforced composite welds as middle layer, as shown in Figure 7, obtain staple fibre-particle and combine enhancing composite weld structure, as shown in Figure 8.
Claims (4)
1. one kind forms the method for wild phase strengthening composite weld structured material by regulation and control, it is characterised in that step is as follows:
1) by mother metal surface cleaning to be welded, oxide film, spot and grease is removed, dry for standby;
2) by composite material surface polishing, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
3) by solder surface finish, polishing, cleaning, oxide film, spot and grease is removed, dry for standby;
4) by the mother metal to be welded after above-mentioned process, braze metal alloy and matrix material, assemble according to the structure of " mother metal/solder/matrix material/solder/mother metal ", then ultrasonic assistant welding plant is put into, it is heated to 50-2000 DEG C and it is incubated 1-60min, applying ultrasonic wave 0.1-120s, hyperacoustic vibrational frequency is 1 �� 10 simultaneously4-1��109Hz, the output rating of ultrasonic power is 0.01-5kW, when reaching preset temperature, ultrasonic field, opening pressurizing device to weld, tool heads exports amplitude and is 0.01-20 ��m, operating pressure 0.01-5.0Mpa, treat after having welded that temperature decrease is to room temperature, close ultrasonication, take out weldment, be enhanced and strengthen composite weld structured material mutually.
2. the method for wild phase strengthening composite weld structured material is formed according to claim 1 by regulation and control, it is characterised in that: described mother metal to be welded is aluminium, steel, Al2O3Or pottery.
3. the method for wild phase strengthening composite weld structured material is formed according to claim 1 by regulation and control, it is characterised in that: described matrix material is silicon grain reinforced composite or silicon carbide fiber reinforced composite.
4. the method for wild phase strengthening composite weld structured material is formed according to claim 1 by regulation and control, it is characterised in that: described 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).
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| CN105618885B CN105618885B (en) | 2019-01-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110293304A (en) * | 2019-06-04 | 2019-10-01 | 南京理工大学 | A kind of SiCpParticle enhanced aluminum-based composite material electro-beam welding method |
| 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 |
| CN113510327A (en) * | 2021-06-23 | 2021-10-19 | 上海空间推进研究所 | Dissimilar material brazing gap control method and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110293304A (en) * | 2019-06-04 | 2019-10-01 | 南京理工大学 | A kind of SiCpParticle enhanced aluminum-based composite material electro-beam 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 |
| CN113510327A (en) * | 2021-06-23 | 2021-10-19 | 上海空间推进研究所 | Dissimilar material brazing gap control method and system |
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| CN105618885B (en) | 2019-01-18 |
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Effective date of registration: 20181203 Address after: 314400 No. 11, Qi Road, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Bangchi Automobile Parts Co., Ltd. Address before: 300384 main campus of Tianjin University of Technology, 391 Bingshui West Road, Xiqing, Tianjin. Applicant before: Tianjin University of Technology |
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