CN106346126B - A kind of titanium alloy and red copper dissimilar metal electro-beam welding method - Google Patents

A kind of titanium alloy and red copper dissimilar metal electro-beam welding method Download PDF

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CN106346126B
CN106346126B CN201610867917.0A CN201610867917A CN106346126B CN 106346126 B CN106346126 B CN 106346126B CN 201610867917 A CN201610867917 A CN 201610867917A CN 106346126 B CN106346126 B CN 106346126B
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welding
titanium alloy
copper
vacuum
titanium
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CN106346126A (en
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周琦
郭顺
彭勇
罗添元
向阳
孔见
王毅
李洪强
王希凯
尹凡
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Nanjing University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0033Preliminary treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0046Welding
    • B23K15/0053Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/06Electron-beam welding or cutting within a vacuum chamber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials

Abstract

The present invention is titanium copper dissimilar metal electro-beam welding method, and specially a kind of electro-beam welding method of TC4 titanium alloy and T2 red copper, specific step is as follows for this method: firstly, the preparation before being welded;First of inclined brazing is completed to connect;The quick back centering weldering of small line is reused, root molding is carried out and strengthens;Finally on the basis of preceding twice are welded, welded with the inclined titanium alloy side of electron beam.Welding method of the invention can effectively control the distribution and content of compound between nascent unfavorable orientation metal, improve the intensity and reliability of welding point.

Description

A kind of titanium alloy and red copper dissimilar metal electro-beam welding method
Technical field
The present invention relates to different-metal material welding fields, and in particular to TC4 titanium alloy and T2 red copper welding method.
Background technique
The composite construction of dissimilar metal is in fields such as aerospace, shipbuilding, power industries using more and more extensive.Titanium alloy Because its heat resistance is strong, specific strength is high, has good plasticity, toughness and corrosion resistance, it is widely used in aerospace, petroleum The fields such as work.Copper alloy has excellent electric conductivity, thermal conductivity, excellent corrosion resistance, some copper alloys are also with higher strong Degree, using all multi-parts with aerospace field.
Titanium copper different-metal material welding not only can realize the multifunction of material, while high-strength in conjunction with material property each other Titanium copper connector can also be explored as transition structure, to solve other different-metal material welding problems such as titanium steel.Traditional titanium copper welding, packet Include soldering, molten soldering etc., due to two kinds of materials each other between physical property larger difference and unfavorable brittleness metallic compound life At strength of joint can only achieve 70% or so of copper intensity, it is difficult to realize practical engineering application.
Titanium-copper heterogenous metal composite construction not only meets the demands such as heat transfer, electrical conduction, wearability and corrosion resistance, and And certain intensity can be born while mitigating weight, but at high temperature traditional melting welding be easy to generate in joint it is a large amount of Titanium-copper weld metal zone brittle intermetallic thing, the serious mechanical property for reducing connector.Titanium-copper heterogenous metal welding key exists In efficiently controlling the formation of intermetallic compound and grow up, such as explode weldering, friction welding (FW) of Solid-phase welding method can form titanium-copper Connector, but in terms of be restricted.Zhao Hai is raw, and .QCr0.8/TC4 dissimilar material electro-beam welding process is ground Study carefully [D] Harbin Institute of Technology, electron beam centering weldering research has been carried out to QCr0.8/TC4 dissimilar material in 2007. texts, still Interfacial reaction thickness, classes of compounds and quantity are more, and CuTi based solid solution area organizational coarseness, weld strength is low, and connectivity is poor.Liu Big, Chen Guoqing, Zhang Binggang waits copper/titanium alloy electro-beam welding process optimization [J] welding journal, right in 2008,29 (5) text Copper/titanium alloy electro-beam welding process is optimized, and is improved on the original basis using the method that the inclined brazing of electron beam connects Strength of joint, but effect be not it is obvious that in weld seam there are still a large amount of weld metal zone brittle intermetallic thing and distribution it is irregular, Incomplete root penetration is also that strength of joint is caused to improve one of inapparent reason.How to overcome in above-mentioned welding technique in technique The problem of as TC4 titanium alloy and T2 red copper welding technical problem.
Summary of the invention
It is an object of that present invention to provide a kind of titanium copper dissimilar metal electro-beam welding methods, by changing between realization brittle metal The mode for closing object controlled growth, is greatly optimized connector weakness faying face, to solve the problems, such as that titanium copper dissimilar metal bond strength is low.
Realize that the object of the invention adopts the following technical scheme that
A kind of electro-beam welding method of TC4 titanium alloy and T2 red copper, the specific steps are as follows:
Step 1, TC4 titanium alloy sheet and T2 copper plate are subjected to welding preparation;
Step 2, vacuum is extracted, welding parameter: beam voltage, focus current, welding and assembling height and filament electricity is set Stream;
Step 3, electronic beam current: 40mA-50mA, speed of welding: 10mm/s, line up and down time: 1.5s is set; Make Electron beam deflection in T2 copper plate side, amount of bias range: 1mm-3mm is welded, and after complete molten bath is formed, lower beam Start trunnion axis movement, completes T2 copper plate side front and carry out vacuum welding;
Step 4, electronic beam current: 10mA-20mA is set, speed of welding: 15-20mm/s, the line up and down time: 1.5s;It carries out TC4 titanium alloy sheet and the back centering of T2 copper plate is welded, and after complete molten bath is formed, lower beam starts trunnion axis fortune It is dynamic to complete vacuum welding;Electron beam welding has apparent deep perforation effect, and depth-to-width ratio is big, and welding point root position is due to electricity Beamlet biasing welding, it is understood that there may be lack of fusion, to guarantee the excellent welding quality of connector, electron beam back is fast using small line Fast centering weldering carries out root molding and strengthens.
Step 5, electronic beam current: 20mA-30mA is set, speed of welding: 10mm/s, the line up and down time: 1.5s, By Electron beam deflection in titanium side, amount of bias 1.5-3.5mm carries out the welding of TC4 titanium alloy side, and after complete molten bath is formed, Lower beam starts trunnion axis movement and completes vacuum welding.By the way that biasing welding titanium copper connector weak boundary is transformed again, realize inverse To brittleness between metallic compound grow, to realize the high-strength combination of connector.
Further, in step 1, welding preparation specific steps are as follows:
Step 1.1, titanium copper surface to be welded and periphery 300mm region surface oxygen are removed using 280#, 400#, 600# mesh number sand paper Change layer, and carries out surface and oil contaminant cleaning using acetone;
Step 1.2, TC4 titanium alloy sheet and T2 copper plate is made to place simultaneously gapless closed butt joint on the table.
Further, in step 2, rifle vacuum degree, room vacuum degree respectively reach 8E-3Torr、7E-2Torr。
Further, in step 2, the welding parameter of setting are as follows: beam voltage: 60KV, focus current 600mA- 650mA, welding and assembling height 260mm-290mm, heater current 400mA-450mA.
Further, TC4 titanium alloy quality percentage composition are as follows: Ti:89.12%, Al:6.42%, V:4.30%, Fe: 0.05%, C:0.03%;T2 red copper quality percentage composition are as follows: Cu: >=99.9%, O:0.06%.
The present invention compares compared with the existing technology, has remarkable advantage as follows:
1, the present invention uses the welding method of first of line biasing copper side during titanium copper different-metal material welding, should Method effectively controls the distribution and content of compound between nascent unfavorable orientation metal, improve welding point intensity and can By property.
2, small line quick centring welding has been carried out in the back interface of test piece for welding, has improved the combination of the root of joint Intensity, to further improve the connection reliability of welding point.
3, in the adjacent titanium side of inclined brazing welding seam, the primary welding of titanium partially has been carried out, inclined titanium, which is welded on, does not destroy original inclined copper It is welded to connect on the basis of interface, by Thermal Cycle, changes the growth side of compound between nascent unfavorable orientation metal To, ingredient and content.Welding point bond strength is substantially improved.Tensile strength reaches 90% of copper base metal or more, is 220Mpa- 250Mpa。
Detailed description of the invention
Fig. 1 is welding structure schematic diagram of the invention;
Fig. 2 is seam cross-section schematic diagram of the present invention;
Fig. 3 is weld seam SEM micro-organization chart in embodiment 1;
Fig. 4 is weld seam SEM micro-organization chart in embodiment 2.
Specific embodiment
The technology of the present invention method is not limited to the specific embodiment of act set forth below, further include each specific embodiment it Between any combination.
TC4 titanium is carried out using the 5001 type vacuum electron beam welder of ZD60-6A of Beijing Aviation manufacturing engineering Research Institute The electron beam welding of alloy and T2 red copper, is welded into welding procedure as shown in Figure 1 after assembly, obtained section of weld joint signal Figure is as shown in Figure 2.
Embodiment 1
The electron beam adjacent solder method of titanium alloy TC 4 and T2 red copper is sequentially included the following steps: in present embodiment
Titanium copper surface to be welded and periphery 300mm region surface oxide layer are removed using 280#, 400#, 600# mesh number sand paper, and Surface and oil contaminant cleaning is carried out using acetone.Titanium copper material is TC4 and T2 red copper respectively, wherein TC4 titanium alloy quality percentage composition Are as follows: Ti:89.12%, Al:6.42%, V:4.30%, Fe:0.05%, C:0.03%;T2 red copper quality percentage composition are as follows: Cu: >=99.9%, O:0.06%.Test piece for welding is assembled, square groove and gapless closed butt joint.Fixed docking test plate (panel) in Vacuum chamber beam spot surface focus or lower focal position, interface are parallel to the horizontal guide rail direction of motion.
Vacuum is extracted, and reaches welding condition to rifle vacuum, room vacuum degree, rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, high pressure is loaded, and carry out welding parameter setting.Wherein, beam voltage: 60KV, focus current 650mA, welding are high Spend 280mm, heater current 430mA;Electronic beam current: 45mA, speed of welding: 10mm/s, line up and down time: 1.5s;It opens Dynamic vacuum chamber kinematic system servo is enabled, mobile interface vertical direction, makes Electron beam deflection in copper side, amount of bias range: 1.5mm.It is welded after completing parameter setting, and after complete molten bath is formed, lower beam, which starts trunnion axis movement, to be completed first Welding.
Room vacuum is closed, by connection test plate (panel) in being dismantled on stationary fixture, the back side is exchanged as welding surface, retightens, protect It is constant and be parallel to interface to move horizontally guide rail to hold original welding and assembling height.Welding surface is cleared up using acetone.
Vacuum is to welding requirements vacuum degree and hereinafter, rifle vacuum, room vacuum degree respectively reach 8E for extraction-3、7E-2Again it sets Determine electron beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, heater current 430mA; Electronic beam current: 15mA, speed of welding: 15mm/s, line up and down time: 1.5s.It is welded after completing parameter setting, And after complete molten bath is formed, lower beam starts trunnion axis movement and completes the welding of second back.
It is again switched off vacuum, by connection test plate (panel) in being dismantled on stationary fixture, original first of welding surface is re-used as just Face and fixation, while keeping original welding and assembling height constant and being parallel to interface moving horizontally guide rail.Using acetone to welding Face is cleared up.
Make Electron beam deflection in titanium side, amount of bias 2mm extracts vacuum, and rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, reset electron beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, filament Electric current 430mA;Electronic beam current: 20mA, speed of welding: 10mm/s, line up and down time: 1.5s.After completing parameter setting It is welded, and after complete molten bath is formed, lower beam starts trunnion axis movement and completes third road adjacent solder.
It is illustrated in figure 3 the subregional SEM micro-organization chart of welding seam part in the embodiment of the present invention 1.Interface gold as shown in the figure Compound transition layer is formed well between category, without compound between thicker continuous metal.
The strength of joint of titanium alloy TC 4 plate and T2 copper plate reaches 245Mpa.
Embodiment 2
Use is sequentially included the following steps: to the electro-beam welding method of titanium alloy TC 4 and T2 red copper in present embodiment 280#, 400#, 600# mesh number sand paper remove titanium copper surface to be welded and periphery 300mm region surface oxide layer, and are carried out using acetone Surface and oil contaminant cleaning.Titanium copper material is TC4 and T2 red copper respectively, wherein TC4 titanium alloy quality percentage composition are as follows: Ti: 89.12%, Al:6.42%, V:4.30%, Fe:0.05%, C:0.03%;T2 red copper quality percentage composition are as follows: Cu: >= 99.9%, O:0.06%.Test piece for welding is assembled, square groove and gapless closed butt joint.Fixed docking test plate (panel) is in true Empty room beam spot surface focus or lower focal position, interface are parallel to the horizontal guide rail direction of motion.
Vacuum is extracted, and reaches welding condition to rifle vacuum, room vacuum degree, rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, high pressure is loaded, and carry out welding parameter setting.Wherein, beam voltage: 60KV, focus current 650mA, welding are high Spend 280mm, heater current 430mA;Electronic beam current: 45mA, speed of welding: 10mm/s, line up and down time: 1.5s;It opens Dynamic vacuum chamber kinematic system servo is enabled, mobile interface vertical direction, makes Electron beam deflection in copper side, amount of bias range: 1.5mm.It is welded after completing parameter setting, and after complete molten bath is formed, lower beam, which starts trunnion axis movement, to be completed first Welding.
Room vacuum is closed, by connection test plate (panel) in being dismantled on stationary fixture, the back side is exchanged as welding surface, retightens, protect It is constant and be parallel to interface to move horizontally guide rail to hold original welding and assembling height.Welding surface is cleared up using acetone.
Vacuum is extracted to welding requirements vacuum degree, rifle vacuum, room vacuum degree respectively reach 8E-3、7E-2, reset electronics Beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, heater current 430mA;Electron beam Stream: 15mA, speed of welding: 15mm/s, line up and down time: 1.5s.It is welded after completing parameter setting, and to complete After whole molten bath is formed, lower beam starts trunnion axis movement and completes the welding of second back.
It is illustrated in figure 4 the subregional SEM micro-organization chart of welding seam part in the embodiment of the present invention 2.Interface gold as shown in the figure Compound transition layer is thicker between category, and is distributed mixed and disorderly.
Titanium alloy TC 4 plate and the T2 copper plate electron beam strength of joint that only copper side is welded partially reach 162Mpa.
Embodiment 3
The electron beam adjacent solder method of titanium alloy TC 4 and T2 red copper is sequentially included the following steps:
Titanium copper surface to be welded and periphery 300mm region surface oxide layer are removed using 280#, 400#, 600# mesh number sand paper, and Surface and oil contaminant cleaning is carried out using acetone.Titanium copper material is TC4 and T2 red copper respectively, wherein TC4 titanium alloy quality percentage composition Are as follows: Ti:89.12%, Al:6.42%, V:4.30%, Fe:0.05%, C:0.03%;T2 red copper quality percentage composition are as follows: Cu: >=99.9%, O:0.06%.Test piece for welding is assembled, square groove and gapless closed butt joint.Fixed docking test plate (panel) in Vacuum chamber beam spot surface focus or lower focal position, interface are parallel to the horizontal guide rail direction of motion.
Vacuum is extracted, and reaches welding condition to rifle vacuum, room vacuum degree, rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, high pressure is loaded, and carry out welding parameter setting.Wherein, beam voltage: 60KV, focus current 650mA, welding are high Spend 280mm, heater current 430mA;Electronic beam current: 45mA, speed of welding: 10mm/s, line up and down time: 1.5s;It opens Dynamic vacuum chamber kinematic system servo is enabled, mobile interface vertical direction, makes Electron beam deflection in copper side, amount of bias range: 1.5mm.It is welded after completing parameter setting, and after complete molten bath is formed, lower beam, which starts trunnion axis movement, to be completed first Welding.
Room vacuum is closed, by connection test plate (panel) in being dismantled on stationary fixture, the back side is exchanged as welding surface, retightens, protect It is constant and be parallel to interface to move horizontally guide rail to hold original welding and assembling height.Welding surface is cleared up using acetone.
Extract vacuum to welding requirements vacuum degree and, rifle vacuum, room vacuum degree respectively reach 8E-3、7E-2, reset electricity Beamlet parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, heater current 430mA;Electronics Line: 15mA, speed of welding: 15mm/s, line up and down time: 1.5s.It is welded after completing parameter setting, and to After complete molten bath is formed, lower beam starts trunnion axis movement and completes the welding of second back.
It is again switched off vacuum, by connection test plate (panel) in being dismantled on stationary fixture, original first of welding surface is re-used as just Face and fixation, while keeping original welding and assembling height constant and being parallel to interface moving horizontally guide rail.Using acetone to welding Face is cleared up.
Make Electron beam deflection in titanium side, amount of bias 2.5mm extracts vacuum, and rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, reset electron beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, filament Electric current 430mA;Electronic beam current: 20mA, speed of welding: 10mm/s, line up and down time: 1.5s.After completing parameter setting It is welded, and after complete molten bath is formed, lower beam starts trunnion axis movement and completes third road adjacent solder.
The strength of joint of titanium alloy TC 4 plate and T2 copper plate reaches 228Mpa.
Embodiment 4
The electron beam adjacent solder method of titanium alloy TC 4 and T2 red copper is sequentially included the following steps: in the present embodiment
Titanium copper surface to be welded and periphery 300mm region surface oxide layer are removed using 280#, 400#, 600# mesh number sand paper, and Surface and oil contaminant cleaning is carried out using acetone.Titanium copper material is TC4 and T2 red copper respectively, wherein TC4 titanium alloy quality percentage composition Are as follows: Ti:89.12%, Al:6.42%, V:4.30%, Fe:0.05%, C:0.03%;T2 red copper quality percentage composition are as follows: Cu: >=99.9%, O:0.06%.Test piece for welding is assembled, square groove and gapless closed butt joint.Fixed docking test plate (panel) in Vacuum chamber beam spot surface focus or lower focal position, interface are parallel to the horizontal guide rail direction of motion.
Vacuum is extracted, and reaches welding condition to rifle vacuum, room vacuum degree, rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2Hereinafter, load high pressure, and carry out welding parameter setting.Wherein, beam voltage: 60KV, focus current 650mA, weldering Meet height 280mm, heater current 430mA;Electronic beam current: 45mA, speed of welding: 10mm/s, the line up and down time: 1.5s;It is enabled to start vacuum chamber kinematic system servo, mobile interface vertical direction makes Electron beam deflection in copper side, amount of bias Range: 1.5mm.It is welded after completing parameter setting, and after complete molten bath is formed, lower beam starts trunnion axis movement and completes the It welds together.
Room vacuum is closed, by connection test plate (panel) in being dismantled on stationary fixture, the back side is exchanged as welding surface, retightens, protect It is constant and be parallel to interface to move horizontally guide rail to hold original welding and assembling height.Welding surface is cleared up using acetone.
Vacuum is to welding requirements vacuum degree and hereinafter, rifle vacuum, room vacuum degree respectively reach 8E for extraction-3、7E-2Again it sets Determine electron beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, heater current 430mA; Electronic beam current: 15mA, speed of welding: 15mm/s, line up and down time: 1.5s.It is welded after completing parameter setting, And after complete molten bath is formed, lower beam starts trunnion axis movement and completes the welding of second back.
It is again switched off vacuum, by connection test plate (panel) in being dismantled on stationary fixture, original first of welding surface is re-used as just Face and fixation, while keeping original welding and assembling height constant and being parallel to interface moving horizontally guide rail.Using acetone to welding Face is cleared up.
Make Electron beam deflection in titanium side, amount of bias 3mm extracts vacuum, and rifle vacuum, room vacuum degree respectively reach 8E-3、 7E-2, reset electron beam parameter are as follows: beam voltage: 60KV, focus current 650mA, welding and assembling height 280mm, filament Electric current 430mA;Electronic beam current: 20mA, speed of welding: 10mm/s, line up and down time: 1.5s.After completing parameter setting It is welded, and after complete molten bath is formed, lower beam starts trunnion axis movement and completes third road adjacent solder.
The strength of joint of titanium alloy TC 4 plate and T2 copper plate reaches 220Mpa.

Claims (5)

1. a kind of electro-beam welding method of TC4 titanium alloy and T2 red copper, which is characterized in that specific step is as follows:
Step 1, TC4 titanium alloy sheet and T2 copper plate are subjected to welding preparation;
Step 2, vacuum is extracted, welding parameter: beam voltage, focus current, welding and assembling height and heater current is set;
Step 3, electronic beam current: 40mA-50mA, speed of welding: 10mm/s, line up and down time: 1.5s is set;Make electricity Beamlet is offset to T2 copper plate side, amount of bias range: 1mm-3mm is welded, and after complete molten bath is formed, and lower beam starts Trunnion axis movement completes T2 copper plate side front and carries out vacuum welding;
Step 4, electronic beam current: 10mA-20mA, speed of welding: 15-20mm/s, line up and down time: 1.5s is set;Into Row TC4 titanium alloy sheet and the back centering of T2 copper plate are welded, and after complete molten bath is formed, and lower beam, which starts trunnion axis movement, to be completed very Missing solder connects;
Step 5, electronic beam current: 20mA-30mA is set, speed of welding: 10mm/s, the line up and down time: 1.5s, it will be electric Beamlet is offset to titanium side, and amount of bias 1.5-3.5mm carries out the welding of TC4 titanium alloy side, and after complete molten bath is formed, lower beam Start trunnion axis movement and completes vacuum welding.
2. the electro-beam welding method of TC4 titanium alloy and T2 red copper according to claim 1, which is characterized in that step 1 In, the welding preparation step are as follows:
Step 1.1, titanium copper surface to be welded is removed using 280#, 400#, 600# mesh number sand paper and periphery 300mm region surface aoxidizes Layer, and surface and oil contaminant cleaning is carried out using acetone;
Step 1.2, TC4 titanium alloy sheet and T2 copper plate is made to place simultaneously gapless closed butt joint on the table.
3. the electro-beam welding method of TC4 titanium alloy and T2 red copper according to claim 1, which is characterized in that
In step 2, rifle vacuum degree, room vacuum degree respectively reach 8E-3Torr、7E-2Torr。
4. the electro-beam welding method of TC4 titanium alloy and T2 red copper according to claim 1, which is characterized in that step 2 In, the welding parameter of setting are as follows: beam voltage: 60KV, focus current 600mA-650mA, welding and assembling height 260mm- 290mm, heater current 400mA-450mA.
5. the electro-beam welding method of TC4 titanium alloy and T2 red copper according to claim 1, which is characterized in that described TC4 titanium alloy quality percentage composition are as follows: Ti:89.12%, Al:6.42%, V:4.30%, Fe:0.05%, C:0.03%;T2 is purple Copper mass percentage composition are as follows: Cu: >=99.9%, O:0.06%.
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