CN106513945A - Overlap welding method using ultrathin aluminum-steel compound transition joint - Google Patents
Overlap welding method using ultrathin aluminum-steel compound transition joint Download PDFInfo
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- CN106513945A CN106513945A CN201611204411.8A CN201611204411A CN106513945A CN 106513945 A CN106513945 A CN 106513945A CN 201611204411 A CN201611204411 A CN 201611204411A CN 106513945 A CN106513945 A CN 106513945A
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
Abstract
The invention relates to an overlap welding method using an ultrathin aluminum-steel compound transition joint. The method comprises the steps of: pre-welding treatment; and a method of welding aluminum first and then welding steel during welding. The patent provides the welding method of welding aluminum first and then welding steel. As the heat conductivity coefficient of aluminum is about 3 times that of iron. Heat dissipation of an aluminum-steel interface is facilitated if aluminum is welded first, and the peak temperature of the aluminum-steel interface in the welding process is reduced, so that continuous welding is guaranteed, and meanwhile, the aluminum-steel interface of the ultrathin aluminum-steel compound transition joint is not peeled off.
Description
Technical field
The present invention relates to a kind of welding method, more particularly, to a kind of lap-welded using ultra-thin aluminum steel compound transition joint
Method.
Background technology
Metal material provide function can be divided into structural, thermal expansivity, thermal and mechanical stress control, magnetic, it is corrosion-resistant,
Connection etc., and the demand that the joint of different metal material combination constantly develops is because relative to two-layer or multiple layer metal material
For joint, a kind of metal material can only provide a kind of chemistry, physics and mechanical characteristic, and direct using lightweight metal material
It is compounded on the big metal material of intensity and can saves sizable weight.For these reasons, the development need of high-speed ship
Aluminum-steel compound transition joint is connecting aluminium erection and steel hull.Due to the further light-weighted need of high speed hull
Ask, occur in that the demand to ultra-thin aluminum-steel compound transition joint that gross thickness is 10mm or so, its thickness is well below CB/
T1343-98《Aluminum-steel transit joint specification》The aluminum of requirement-steel compound transition joint product thickness cannot be less than the requirement of 22mm,
It is transit joint peculiar to vessel most frivolous both at home and abroad.Aluminum-steel compound transition joint is compound by what is manufactured using explosion welding method
Plate, is in strip by the processing of the Cold-forming process such as saw, plane, milling, Water Cutting, plate shape, circle or other shapes.Aluminum-steel was combined
Crossing joint is composited by aluminium alloy, aluminum or titanium, three kinds of different metal materials of steel or stainless steel, and wherein aluminum or titanium are centre
Layer, as the dissolubility between aluminum and ferrum is very low, can also form Fe when mutually fusingXAlYBrittle phase between various metals, aluminum-steel are multiple
Transit joint is closed as, during transition jointing application, these intermetallic phases are in weldering between naval vessel aluminum superstructure and steel hull
In the presence of scooping out power, require carrying out the company of the overlap joint between ultra-thin aluminum-steel compound transition joint especially in accordance with actual welding
Connect（Connected mode is shown in Fig. 1）There is the situation that aluminum and iron phase are mutually fused in Shi Jiyi, and easily causes aluminum-steel interface peel.
The content of the invention
The purpose of the present invention is for solving being overlapped using ultra-thin aluminum-steel compound transition joint for above-mentioned technical problem
In welding process, the characteristics of due to ultra-thin aluminum-steel compound transition joint very thin thickness, held when welding using existing method
Easily cause the problem of aluminum-steel interface peel in ultra-thin aluminum-steel compound transition joint, there is provided one kind was combined using ultra-thin aluminum-steel
The method for crossing overlapping splice weldering.
For solving the deficiency of above-mentioned technical problem, the technical scheme for being adopted is the present invention：
It is a kind of to utilize the lap-welded method of ultra-thin aluminum steel compound transition joint, comprise the steps：
Step one, steel connecting plate to be overlapped, aluminum connecting plate and welding position are determined according to design requirement, using ultra-thin aluminum-steel
Compound transition joint, selectes the welding method of semi-automatic gas metal-arc welding, determines the welding procedure ginseng of the welding method
Number；
Table is carried out to determining position to be welded and welding position both sides to be not less than in the range of 50mm in step one before step 2, weldering
Face is cleared up；
Step 3, according to the welding parameter determined in step one, after using flat fillet weld and first welding aluminum, the method for welding steel is welded,
Slope is wiped using first welding during on the one hand welding steel after aluminum can be avoided because removing steel side oxide layer, steel side weld partial trim etc.
The abrasive particle pollution aluminum side welding region remained when residue during mouth and polishing, produces when such residue can cause aluminum side to weld
The defects such as slag inclusion, pore；The heat conductivity of another aspect aluminum is approximately 3 times of ferrum, is conducive to dissipating for aluminum-steel interface when first welding aluminum
Heat, reduces the peak temperature at aluminum-steel interface in welding process, and after first welding aluminum, the method for welding steel is：First by aluminum connecting plate and ultra-thin
Aluminum-steel compound transition joint welds together, the electric arc deflection aluminum connecting plate side of control 3/1sts to four/2nd during welding,
Again steel connecting plate is welded together with ultra-thin aluminum-steel compound transition joint, control 3/1sts to four/2nd during welding
Electric arc deflection steel connecting plate side, after steel connecting plate is welded together with ultra-thin aluminum-steel compound transition joint, welding is completed, wherein
Protective gas when aluminum is welded adopts noble gases, protective gas when steel is welded to be not less than 50% inertia using volume content
The mixed gas of gas and carbon dioxide；In welding process keep 3/1sts to four/2nd electric arc deflection aluminum connecting plate and
Steel connecting plate side, mutually melts phenomenon to avoid ultra-thin aluminum-steel compound transition joint interface from producing aluminum, ferrum；
It is with reference to CB/T3953-2002 in described step one《Aluminum-titanium-steel compound transition joint solder technology condition》Require into
Row welding procedure test, determines welding condition
Any one method in acetone soln or grinding is coordinated using stainless steel wire brush in described step two
Surface is cleared up, and after cleaning, impurity and the attachments such as surface moisture, dust, greasy dirt, oxide-film is removed with cleaning wiping cloth.
When cannot carry out flat fillet weld in described step three, that is, it is to limit and cannot carry out according to site operation position or condition
Flat fillet weld, can adopt horizontal position welding, vertical position welding or be welded, and compared with downhand welding mode, be welded using horizontal position welding welding and vertical position welding
When speed of welding improve 1% ~ 10%, using overhead welding welding when speed of welding improve 5% ~ 10%, it is to avoid liquid deposited metal overflow
Go out to cause ultra-thin aluminum-steel compound transition joint interface aluminum, ferrum mutually to melt phenomenon.
When cannot be welded using the method for first welding welding steel after aluminum in described step three, first take measures to keep aluminum side
The cleaning of welding region, in order to avoid producing the defects such as slag inclusion, pore when aluminum side is welded, then is carried out using the method for welding aluminum after first welding steel
Welding, as：First steel connecting plate and ultra-thin aluminum-steel compound transition joint are welded together, during welding control 1/2nd to
3/4ths electric arc deflection steel connecting plate side, then aluminum connecting plate is welded together with ultra-thin aluminum-steel compound transition joint, weld
The electric arc deflection aluminum connecting plate side of control 3/1sts to four/2nd when connecing.
It is taken keep aluminum side welding region cleaning measure be：Aluminum side welding region surface apply antioxidizing paint or
Aluminum side welding region adds any one in covering.
Institute's covering is any one in rubber or asbestos cloth, it would however also be possible to employ it is dirty that other do not result in welding region
With article is covered, both are common used material for the isolation of dye.
In described step three, noble gases used are argon.
The invention has the beneficial effects as follows：Patent of the present invention proposes the welding method of welding steel after first weldering aluminum, due to leading for aluminum
Hot coefficient is approximately 3 times of ferrum, is conducive to the radiating at aluminum-steel interface when first welding aluminum, reduces the peak value at aluminum-steel interface in welding process
Temperature, this ensures that theres continuous welding, while the aluminum-steel interface peel of ultra-thin aluminum-steel compound transition joint is not resulted in, and
And the protective gas when steel is welded typically is adopted using the mixed gas of at least noble gases of 50% volume and 50% carbon dioxide
With+20% carbon dioxide of 80% argon, the splash phenomena caused during single carbon dioxide gas arc welding is greatly reduced, reduced
Postwelding cleaning work amount, compared with pure argon, and reduces production cost to a certain extent；Electric arc deflection in welding process
Aluminum connecting plate and steel connecting plate side, effectively avoid as aluminum, ferrum are mutual on the premise of the foot welding height of design requirement is ensured
The phenomenon of the brittle even cracking of the molten weld seam for causing, causes ultra-thin while avoiding liquid deposited metal using flat-face fillet weld and overflowing
Aluminum-steel compound transition joint interface aluminum, ferrum mutually melt phenomenon.
Description of the drawings
Fig. 1 is ultra-thin aluminum steel compound transition joint joint form schematic diagram in the present invention.
Fig. 2 is ultra-thin aluminum steel compound transition joint test piece for welding assembling and temperature measurement location schematic diagram in the present invention.
Fig. 3 is the side view of Fig. 2 in the present invention.
Specific embodiment
It is a kind of to utilize the lap-welded method of ultra-thin aluminum steel compound transition joint, comprise the steps：
Step one, steel connecting plate to be overlapped, aluminum connecting plate and welding position are determined according to design requirement, it is multiple using ultra-thin aluminum steel
Transit joint is closed, the welding method of semi-automatic gas metal-arc welding is selected, is determined the welding condition of the welding method；
Table is carried out to determining position to be welded and welding position both sides to be not less than in the range of 50mm in step one before step 2, weldering
Face is cleared up；
Step 3, according to the welding parameter determined in step one, after using flat fillet weld and first welding aluminum, the method for welding steel is welded,
Slope is wiped using first welding during on the one hand welding steel after aluminum can be avoided because removing steel side oxide layer, steel side weld partial trim etc.
The abrasive particle pollution aluminum side welding region remained when residue during mouth and polishing, produces when such residue can cause aluminum side to weld
The defects such as slag inclusion, pore；The heat conductivity of another aspect aluminum is approximately 3 times of ferrum, is conducive to dissipating for aluminum-steel interface when first welding aluminum
Heat, reduces the peak temperature at aluminum-steel interface in welding process, and after first welding aluminum, the method for welding steel is：First by aluminum connecting plate and ultra-thin
Aluminum steel compound transition joint welds together, the electric arc deflection aluminum connecting plate side of control 3/1sts to four/2nd during welding,
Again steel connecting plate is welded together with ultra-thin aluminum-steel compound transition joint, control 3/1sts to four/2nd during welding
Electric arc deflection steel connecting plate side, after steel connecting plate is welded together with ultra-thin aluminum-steel compound transition joint, welding is completed, wherein
Protective gas when aluminum is welded adopts noble gases, protective gas when steel is welded to be not less than 50% inertia using volume content
The mixed gas of gas and carbon dioxide；In welding process keep 3/1sts to four/2nd electric arc deflection aluminum connecting plate and
Steel connecting plate side, to avoid aluminum-steel compound transition joint interface aluminum, ferrum from mutually melting phenomenon；
It is with reference to CB/T3953-2002 in described step one《Aluminum-titanium-steel compound transition joint solder technology condition》Require into
Row welding procedure test, determines welding condition
Any one method in acetone soln or grinding is coordinated using stainless steel wire brush in described step two
Surface is cleared up, and after cleaning, impurity and the attachments such as surface moisture, dust, greasy dirt, oxide-film is removed with cleaning wiping cloth.
When cannot carry out flat fillet weld in described step three, that is, it is to limit and cannot carry out according to site operation position or condition
Flat fillet weld, can adopt horizontal position welding, vertical position welding or be welded, and compared with downhand welding mode, be welded using horizontal position welding welding and vertical position welding
When speed of welding improve 1% ~ 10%, using overhead welding welding when speed of welding improve 5% ~ 10%, it is to avoid liquid deposited metal overflow
Go out to cause ultra-thin aluminum-steel compound transition joint interface aluminum, ferrum mutually to melt phenomenon.
When cannot be welded using the method for first welding welding steel after aluminum in described step three, first take measures to keep aluminum side
The cleaning of welding region, in order to avoid producing the defects such as slag inclusion, pore when aluminum side is welded, then is carried out using the method for welding aluminum after first welding steel
Welding, as：First steel connecting plate and ultra-thin aluminum-steel compound transition joint are welded together, during welding control 1/2nd to
3/4ths electric arc deflection steel connecting plate side, then aluminum connecting plate is welded together with ultra-thin aluminum steel compound transition joint, weld
The electric arc deflection aluminum connecting plate side of control 3/1sts to four/2nd when connecing.
It is taken keep aluminum side welding region cleaning measure be：Aluminum side welding region surface apply antioxidizing paint or
Aluminum side welding region adds any one in covering.
Institute's covering is any one in rubber or asbestos cloth, it would however also be possible to employ it is dirty that other do not result in welding region
With article is covered, both are common used material for the isolation of dye.
In described step three, noble gases used are argon.
The performance of product after exploitativeness and detection welding for the method in the checking present invention, using following examples
Carry out performance detection：
Embodiment 1：
As basic unit, the fine aluminium 1060 with thickness as 2mm as intermediate layer with thickness is hull structural steel CCSB with thickness as 5mm
The aluminium alloy 5083 of 3mm is ultra-thin aluminum-steel compound transition joint of the cladding using explosion welding method manufacture, and it is ultra-thin that saw takes
Aluminum-steel compound transition joint welding procedure test test plate (panel) size is（5+2+3）× 20 × 400mm, quantity are 2 pieces.To welding
Thermometer hole is bored in engineer testing aluminum-steel transit joint test piece for welding aluminum-steel interface, and aperture is 3 ~ 4mm.To position to be welded before weldering
And stainless steel wire brush and acetone be respectively adopted in the range of the 50mm of both sides carry out removing surface, go moisture removal, dust, greasy dirt,
The impurity such as oxide-film and all attachments.Employ in welding process and first weld aluminum, the welding sequence of rear welding steel.Aluminum alloy side is overlapped
During weldering, aluminium alloy welding wire is ER5183, a diameter of Ф 1.2mm, and during the overlap welding of steel side, steel welding wire is H08Mn2SiA, a diameter of Ф
1.2mm, with reference to CB/T3953-2002《Aluminum-titanium-steel transit joint solder technology condition》Requirement first carried out ultra-thin aluminum-steel
Compound transition joint welding procedure test, welding condition are shown in Table 1.Postwelding is in the centre position of test plate (panel)（In dashed region）Cut
Two tensile samples are taken, temperature measurement location and stretching sampling position are as shown in Figure 2.
1 ultra-thin aluminum of table-steel compound transition joint lap joint process
Tension test is tested using 600KN universal tensile testing machines, clamps aluminum connecting plate and steel connecting plate termination, to ultra-thin
Aluminum-steel compound transition joint welding structural element carries out tensile property detection, and testing result is respectively 334Mpa, 323Mpa, two
5083 minimum tensile strength of aluminium alloy that the tensile force of tensile sample is specified by standard in being not less than ship structure is calculated
Less value of thrust.After ultra-thin aluminum-steel transit joint welding integral structure component drawn test, the compound transition of ultra-thin aluminum-steel connects
Aluminum-steel the interface of head is intact, and the fracture position of tensile sample is aluminum connecting plate.
The peak temperature at aluminum-steel interface is measured in welding process, it is ensured that during welding, the temperature at aluminum-steel interface is strictly controlled
Below 300 DEG C.With reference to the convenience of practice of construction, the welding between aluminium alloy employs the less semi-automatic fusing of heat input
The protective gas during welding method, wherein Welded of pole gas shielded arc welding is the argon that purity is 99.99%, steel welding
When protective gas be+20% carbon dioxide of 80% argon, selected corresponding welding equipment.Selected according to welding procedure test result
Fixed welding procedure has carried out ultra-thin aluminum-steel compound transition joint overlap welding, 2/3rds electric arc deflection aluminum in welding process
Connecting plate and steel connecting plate side, the peak temperature for measuring aluminum-steel interface in welding process are 266 DEG C.Postwelding respectively to ultra-thin aluminum-
Steel compound transition joint test plate (panel) weld seam and aluminum-steel interface have carried out visual examination, and appearance of weld is good, and ultra-thin aluminum-steel was combined
Cross the peeling that joint interface is visible by naked eyes.
Respectively ultra-thin aluminum-steel compound transition joint lap weld and aluminum-steel interface are permeated after visual examination is qualified
Detection, testing result meet I grade of requirement of NB/T47013-2015.Steel, aluminum connecting plate and its attachment weld is removed, is cut respectively
Ultra-thin aluminum-steel compound transition joint bonding sample 3, shears 3, sample, measures the ultra-thin aluminum-steel compound transition joint of postwelding
Interface bond strength, testing result show aluminum-steel interface binding intensity for 151Mpa, 168Mpa, 133Mpa, and meansigma methodss are
150Mpa；Aluminum-steel interface shear strength is 81Mpa, 77Mpa, 79Mpa, and meansigma methodss are 79Mpa.To ultra-thin aluminum-steel transit joint
Lap joint carries out low power morphology observation Jing after corroding, without lack of fusion phenomenon.Above items testing result is satisfied by
The index request of CB20091-2012 and CB/T3953-2002.
Embodiment 2
Hull structural steel CCSB with thickness as 5mm as basic unit, the titanium TA1 with thickness as 2mm as intermediate layer, with thickness as 3mm
Aluminium alloy 5083 be ultra-thin aluminum-steel compound transition joint of the cladding using explosion welding method manufacture, with reference to CB/T3953-
2002《Aluminum-titanium-steel compound transition joint solder technology condition》Require, the ultra-thin aluminum for cutting-steel compound transition joint Welder
Skill test test plate (panel) size is（5+2+5）× 20 × 400mm, quantity are 5 pieces.Weldering before to position to be welded and both sides 50mm in the range of
Removing surface is carried out using rustless steel steel wire brush and acetone, the impurity such as moisture removal, dust, greasy dirt, oxide-film is removed and is owned
Attachment.Adopt in welding process and first weld aluminum, the welding sequence of rear welding steel.Ultra-thin aluminum-steel compound transition joint and connecting plate it
Between welding using the less semi-automatic gas metal-arc welding of heat input welding method, wherein aluminum weld when shielding gas
Body is the argon that purity is 99.99%, and protective gas when steel is welded is+20% carbon dioxide of 80% argon, has selected corresponding weldering
Connect equipment.Welding condition is with embodiment 1.Postwelding is respectively to ultra-thin aluminum-steel compound transition joint test plate (panel) weld seam and aluminum-steel circle
Face has carried out visual examination, and appearance of weld is good, the peeling that aluminum-steel compound transition joint interface is visible by naked eyes.
Respectively ultra-thin aluminum-steel compound transition joint lap weld and aluminum-steel interface are permeated after visual examination is qualified
Detection, testing result meet I grade of requirement of NB/T47013-2015.
Steel, aluminum connecting plate and its attachment weld is removed, ultra-thin aluminum-steel compound transition joint bonding sample 3 is cut respectively,
3, sample of shearing, measures the interface bond strength of the ultra-thin aluminum-steel compound transition joint of postwelding, and testing result shows aluminum-steel circle
Face adhesion strength is 172Mpa, 188Mpa, 171Mpa, and meansigma methodss are 177Mpa；Aluminum-titanium interface shear strength be 88Mpa,
88Mpa, 81Mpa, meansigma methodss are 85.7Mpa, and titanium-steel interface shear strength is 375Mpa, 369Mpa, 370Mpa, and meansigma methodss are
371.3Mpa.Low power morphology observation is carried out Jing after corroding to ultra-thin aluminum-steel transit joint lap joint, without lack of fusion phenomenon.
Above items testing result is satisfied by the index request of CB20091-2012 and CB/T3953-2002.
Technical scheme and embodiment cited by the present invention non-limiting, with the technical scheme cited by the present invention and
Embodiment is equal to or effect same approach is all in the range of the present invention is protected.
Claims (8)
- It is 1. a kind of to utilize the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that：Comprise the steps：Step one, steel connecting plate to be overlapped, aluminum connecting plate and welding position are determined according to design requirement, it is multiple using ultra-thin aluminum steel Transit joint is closed, the welding method of semi-automatic gas metal-arc welding is selected, is determined the welding condition of the welding method；Table is carried out to determining position to be welded and welding position both sides to be not less than in the range of 50mm in step one before step 2, weldering Face is cleared up；Step 3, according to the welding parameter determined in step one, after using flat fillet weld and first welding aluminum, the method for welding steel is welded, After first welding aluminum, the method for welding steel is：First aluminum connecting plate and ultra-thin aluminum steel compound transition joint are welded together, is controlled during welding 3/to four/2nd electric arc deflection aluminum connecting plate side, then steel connecting plate is welded with ultra-thin aluminum steel compound transition joint Together, during welding, the electric arc of control 3/1sts to four/2nd is partial to steel connecting plate side, and steel connecting plate is multiple with ultra-thin aluminum steel After conjunction transit joint welds together, welding process terminates, and protective gas when wherein aluminum is welded adopts noble gases, steel welding When protective gas 50% noble gases and the mixed gas of carbon dioxide are not less than using volume content.
- 2. according to claim 1 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： It is with reference to CB/T3953-2002 in described step one《Aluminum-titanium-steel compound transition joint solder technology condition》Requirement is welded Engineer testing is connect, welding condition is determined.
- 3. according to claim 1 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： Any one method in acetone soln or grinding is coordinated to table using stainless steel wire brush in described step two Face is cleared up, and removes impurity and the attachments such as surface moisture, dust, greasy dirt, oxide-film with cleaning wiping cloth after cleaning.
- 4. according to claim 1 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： When flat fillet weld cannot be carried out in described step three, can adopt horizontal position welding, vertical position welding or be welded, with downhand welding mode phase Than speed of welding when being welded using horizontal position welding welding and vertical position welding improves 1% ~ 10%, is improved using speed of welding during overhead welding welding 5%~10%。
- 5. according to claim 1 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： When cannot be welded using the method for first welding welding steel after aluminum in described step three, first take measures to keep aluminum side welding region Cleaning, then welded using the method for welding aluminum after first welding steel, as：First steel connecting plate and the compound transition of ultra-thin aluminum steel are connect Head welds together, the electric arc deflection steel connecting plate side of control 3/1sts to four/2nd during welding, then by aluminum connecting plate with Ultra-thin aluminum steel compound transition joint welds together, the electric arc deflection aluminum connecting plate of control 3/1sts to four/2nd during welding Side.
- 6. according to claim 5 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： It is taken keep aluminum side welding region cleaning measure be：Antioxidizing paint is applied in aluminum side welding region surface or is welded in aluminum side Region adds any one in covering.
- 7. according to claim 6 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： Institute's covering is any one in rubber or asbestos cloth.
- 8. according to claim 1 a kind of using the lap-welded method of ultra-thin aluminum steel compound transition joint, it is characterised in that： In described step three, noble gases used are argon.
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| CN108526692A (en) * | 2018-04-10 | 2018-09-14 | 上海工程技术大学 | A kind of laser filler Welding of magnesium/aluminum dissimilar metal |
| CN109202315A (en) * | 2018-11-07 | 2019-01-15 | 欣旺达惠州电动汽车电池有限公司 | The method of two kinds of metal material superposition welding |
| CN110253118A (en) * | 2019-07-12 | 2019-09-20 | 中船桂江造船有限公司 | A kind of 917 steel plates+aluminium titanium steel composite material welding method |
| CN110421229A (en) * | 2019-07-12 | 2019-11-08 | 中船桂江造船有限公司 | A kind of EH36+CCSB ceramic substrate welding method |
| CN112296492A (en) * | 2019-12-04 | 2021-02-02 | 中国商用飞机有限责任公司 | Welding process method of dissimilar metal piece |
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| CN108526692A (en) * | 2018-04-10 | 2018-09-14 | 上海工程技术大学 | A kind of laser filler Welding of magnesium/aluminum dissimilar metal |
| CN109202315A (en) * | 2018-11-07 | 2019-01-15 | 欣旺达惠州电动汽车电池有限公司 | The method of two kinds of metal material superposition welding |
| CN110253118A (en) * | 2019-07-12 | 2019-09-20 | 中船桂江造船有限公司 | A kind of 917 steel plates+aluminium titanium steel composite material welding method |
| CN110421229A (en) * | 2019-07-12 | 2019-11-08 | 中船桂江造船有限公司 | A kind of EH36+CCSB ceramic substrate welding method |
| CN110253118B (en) * | 2019-07-12 | 2022-11-15 | 中船桂江造船有限公司 | Welding method for 917 steel plate and aluminum-titanium steel composite material |
| CN112296492A (en) * | 2019-12-04 | 2021-02-02 | 中国商用飞机有限责任公司 | Welding process method of dissimilar metal piece |
| CN112296492B (en) * | 2019-12-04 | 2022-05-24 | 中国商用飞机有限责任公司 | Welding process method of dissimilar metal piece |
| CN115255706A (en) * | 2022-07-29 | 2022-11-01 | 宁波东方电缆股份有限公司 | Method for welding copper conductor and aluminum conductor for flexible joint of high-voltage submarine power cable |
| CN115255706B (en) * | 2022-07-29 | 2023-10-27 | 宁波东方电缆股份有限公司 | Welding method of copper conductor and aluminum conductor for high-voltage submarine power cable flexible joint |
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