CN105798471A - Device and method for inhibiting welding hot cracks of T-shaped structural member - Google Patents
Device and method for inhibiting welding hot cracks of T-shaped structural member Download PDFInfo
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- CN105798471A CN105798471A CN201610378627.XA CN201610378627A CN105798471A CN 105798471 A CN105798471 A CN 105798471A CN 201610378627 A CN201610378627 A CN 201610378627A CN 105798471 A CN105798471 A CN 105798471A
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- welding
- slide block
- eyelid covering
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
Abstract
The invention discloses a device and a method for inhibiting welding hot cracks of a T-shaped structural member. The device is characterized in that two measuring slide blocks are separately arranged on a measuring traction rod; the measuring traction rod is connected onto a tension sensor in a controller and is arranged in a rectangular groove; a traction sliding block is arranged in each rectangular opening, and two traction sliding blocks are separately connected with a driving plate; the driving plate is in threaded connection with a lead screw; the input end of the lead screw is connected with an output shaft of a stepper motor; two cylindrical sliding rods are symmetrically arranged at two sides of the lead screw and are separately connected with the driving plate in a sliding way; two ends of each cylindrical sliding rod are separately connected with sliding rod fixing seats corresponding to the two ends of the cylindrical sliding rod; and the controller is connected with the stepper motor through a data cable. The method comprises the following steps of firstly, processing positioning circular holes on a covering; secondly, positioning and clamping the covering; thirdly, setting a prestretching stress value and prestretching the covering; and fourthly, performing continuous double-side laser filler wire welding on a stringer and the prestretched covering.
Description
Technical field
The present invention relates to the welder of a kind of T junction component and method, be specifically related to a kind of device and method suppressing T junction component HOT CRACK FOR WELDING P.
Background technology
In aircraft industry, the fuselage wallboard T-type structure part of stringer and eyelid covering composition relies primarily on traditional riveting technology and is attached.For the limitation that fuselage weight increases and production efficiency is relatively low overcoming riveted joint to exist, airbus company limited of Germany takes the lead in having carried out the research of bilateral laser synchronization solder technology to replace traditional riveting technology, with realize fuselage wallboard lightweight, efficiently, the processing and manufacturing of low cost.Through the development in more than ten years, this technology is in the mass production being first application for Air Passenger A318 in 2003, and in identical rigidity of structure situation, fuselage weight alleviates about 20%, and manufacturing cost reduces about 25%, and meanwhile, production efficiency is greatly improved.At present, this technology has been successfully applied in the mass production process of the models such as Air Passenger A318, A340, A350, A380.
At present, the fuselage wallboard T-type structure part being made up of stringer and eyelid covering mainly adopts aluminium lithium alloy to make, but the thermal coefficient of expansion of this kind of material is relatively big, causes that material volume temperature influence is bigger；In addition, in bilateral laser beam welding, laser beam is thermoae uneven to adding of eyelid covering and stringer, causing existing bigger thermograde in weld seam, heat affected area and mother metal district, after weld seam solidification, to create the contraction distortion in contraction distortion in various degree, particularly weld seam the most obvious for each region material；In addition, in T junction component, the rigidity of stringer is bigger, it is impossible to produces overall shrinkage deformation by T junction component and discharges residual stress, causes there is bigger residual tension field in weld seam；Above factors causes jointly there is obvious fire check defect on the T-shaped welded weld seam of stringer-eyelid covering.As shown in Figure 8, fire check 4 is directed predominantly perpendicular to welding direction distribution, the intensity of stringer 1-eyelid covering 2 (T junction component) will be significantly attenuated, affect the military service performance of fuselage, in process, fire check even may proceed to extend to heat affected area and mother metal district under arms, and will eventually lead to the destruction fracture of fuselage wallboard.
Existing T junction Member Welding adopts bilateral laser weld, in order to suppress HOT CRACK FOR WELDING P, often adopt the method for postwelding laser welding to bilateral weld seam interior-heat crack repair, but must seam organization near Repeat-heating fire check thus causing weld seam to soften, and still easily in the fire check defect that repair welding place germinating is new, thus reducing the load-carrying properties of weld seam further.
Summary of the invention
The present invention solves that existing T junction component adopts bilateral laser weld, in order to suppress HOT CRACK FOR WELDING P, need bilateral weld seam interior-heat crack repair, cause the fire check defect that repair welding place germinating is new, thus reducing the problem of the load-carrying properties of weld seam, and propose a kind of device and method suppressing T junction component HOT CRACK FOR WELDING P.
nullDevice: a kind of device suppressing T junction component HOT CRACK FOR WELDING P includes platform、Measure draw bar、Controller、Motor、Leading screw、Driver plate、Bearing block、Two traction slide blocks、Measure slide block for two、Two cylinder slide bars、Four fixing seats of slide bar and four base supports，Four base supports are separately fixed at the corner place below platform，Platform is provided with rectangular recess and two rectangular apertures，Rectangular recess is positioned at the front end of platform，Two rectangular apertures are positioned at the rear end of platform，Two rectangular aperture opposed platforms longitudinal centre lines are symmetrical arranged，Measure slide block for two to be all sleeved on measurement draw bar，Measure draw bar to be connected on the pulling force sensor in controller，Controller is fixed on platform，Measure draw bar to be arranged in rectangular recess，Each rectangular aperture arranges a traction slide block，And two traction slide blocks are all connected with driver plate，The upper surface of traction slide block is provided with traction slide block cylindrical positioning pins，The upper surface measuring slide block is provided with measurement slide block cylindrical positioning pins，Driver plate is arranged on below platform，Driver plate is connected with threads of lead screw，One end of leading screw is arranged in bearing block，The other end of leading screw is connected with the output shaft of motor，Two cylinder slide bars are symmetricly set on the both sides of leading screw，Two cylinder slide bars are all slidably connected with driver plate，The fixing seat connection of slide bar that the two ends of each cylinder slide bar are corresponding respectively，The fixing seat of slide bar is fixed on below platform，Controller is connected with motor by data wire.
Method: a kind of method suppressing T junction component HOT CRACK FOR WELDING P through the following steps that realize:
Step one, on eyelid covering locating and machining circular hole: determine the horizontal range a and vertical distance b of four positioning round orifice according to eyelid covering size, and utilize drilling machine to process four positioning round orifice in eyelid covering position line lateral symmetry to be welded；
Step 2, eyelid covering positioned be installed: utilize four positioning round orifice of preprocessing on eyelid covering to draw slide block cylindrical positioning pins respectively with two and two measure slide block cylindrical positioning pins and coordinate, by eyelid covering location and installation in platform, the upper surface drawing slide block, measurement slide block, the position line to be welded on eyelid covering is made to overlap with the longitudinal centre line on platform；
Step 3, pre-tensile stress value is set and eyelid covering is carried out prestretched: by the width c of eyelid covering, thickness d, the pre-tensile stress value σ set inputs in controller, motor and screw turns is controlled by controller, driver plate is along guide screw movement, driver plate drives two traction slide blocks to move to the rear side of platform, stretch eyelid covering two measurement slide block movements with moving platform front end, measure slide block, via measuring draw bar, real-time pulling force is passed to the pulling force sensor in controller, and calculated Live stretch stress value σ ' by controller, Live stretch stress value σ ' and pre-tensile stress value σ is compared, realize motor and screw turns are carried out feedback control；
Step 4, eyelid covering to stringer and prestretched carry out continuous print bilateral laser filling wire welding: be vertically placed on eyelid covering by stringer and overlap with the position line to be welded; two welding wires, two laser beams, two protection gas jets are respectively symmetrically and are positioned over stringer both sides; the protection gas jets of homonymy, laser beam, welding wire order for set gradually from front to back; stringer and eyelid covering are carried out continuous print bilateral laser filling wire welding, it is thus achieved that without the T junction component of fire check.
The present invention has the advantages that compared with the conventional method
One, before stringer-eyelid covering assembly welding, utilize assembly of the invention and method that eyelid covering is carried out prestretched, it is then carried out welding, thus inhibiting fire check in bilateral weld seam, postwelding carries out remelting or post bake without butt welded seam tissue, it is to avoid owing to postwelding needs, with laser beam, fire check defect(ive) structure carries out the Welding Problems such as the seam organization softening caused by remelting repair welding, grain growth, weld strength decline, slag in weld in prior art.Therefore, the present invention improves the load-carrying properties of weld seam.
Two, the present invention can integrate with bilateral laser silk filling synchronous welding system, eyelid covering after prestretched need not carry out secondary and be installed, final assembly welding can be carried out, compared with postwelding repair welding and two-way preset strain method, it is possible to significantly improve fuselage wallboard production efficiency after directly placing stringer.
Three, the operation principle of the present invention is simple, and universality is strong, the material of T junction component is not had strict restriction, such as materials such as aluminium alloy, aluminium lithium alloy, magnesium alloy, titanium alloy, rustless steels.
Accompanying drawing explanation
Fig. 1 is the overall structure axonometric chart of apparatus of the present invention；
Fig. 2 is the face upwarding stereogram of Fig. 1；
Fig. 3 is step one schematic diagram of locating and machining circular hole 2-1 relative position on eyelid covering 2 in detailed description of the invention six；
Fig. 4 is that in detailed description of the invention six, eyelid covering 2 is positioned the schematic diagram being installed by step 2；
Fig. 5 be in detailed description of the invention six step 4 stringer 1 be vertically placed on eyelid covering 2 and with the position line N-N to be welded schematic diagram overlapped；
Fig. 6 is that in detailed description of the invention six, double; two protection gas jets 20, double laser beam 19, double; two welding wire 18 are placed in joint close place, T-type structure both sides and T-type structure entirety carries out the schematic diagram of continuous print bilateral laser filling wire welding by step 4；
Fig. 7 is the I partial enlarged drawing of Fig. 6；
Fig. 8 is the schematic diagram of fire check 4 in the T junction component that existing method welding stringer-eyelid covering obtains exists.
Detailed description of the invention
nullDetailed description of the invention one: present embodiment is described in conjunction with Fig. 1 and Fig. 2，Present embodiment includes platform 5、Measure draw bar 9、Controller 10、Motor 11、Leading screw 12、Driver plate 16、Bearing block 17、Two traction slide blocks 7、Measure slide block 8 for two、Two cylinder slide bars 15、Four fixing seats 14 of slide bar and four base supports 6，Four base supports 6 are separately fixed at platform 5 corner place below，Each base support 6 is designed with a through hole 6-1，Bolt can pass through hole 6-1 and is fixed on ground or other platforms by base support 6，Platform 5 is provided with rectangular recess 5-1 and two rectangular aperture 5-2，Rectangular recess 5-1 is positioned at the front end of platform 5，Two rectangular aperture 5-2 are positioned at the rear end of platform 5，Two rectangular aperture 5-2 opposed platforms longitudinal centre line M-M are symmetrical arranged，Measure slide block 8 for two to be all sleeved on measurement draw bar 9，Measure draw bar 9 and be connected on the pulling force sensor in controller 10，Controller 10 is fixed on platform 5，Measure draw bar 9 to be arranged in rectangular recess 5-1，Each rectangular aperture 5-2 arranges a traction slide block 7，And two traction slide blocks 7 are all connected with driver plate 16，The upper surface of traction slide block 7 is provided with traction slide block cylindrical positioning pins 7-1，The upper surface measuring slide block 8 is provided with measurement slide block cylindrical positioning pins 8-1，Traction slide block cylindrical positioning pins 7-1 and measurement slide block cylindrical positioning pins 8-1 is for coordinating with the positioning round orifice 2-1 of processing on eyelid covering 2 respectively，By eyelid covering 2 location and installation on platform 5，And the radius of traction slide block cylindrical positioning pins 7-1、The radius measuring slide block cylindrical positioning pins 8-1 is equal with the radius of positioning round orifice 2-1；Driver plate 16 is arranged on below platform 5, driver plate 16 is threadeded with leading screw 12, one end of leading screw 12 is arranged in bearing block 17, the other end of leading screw 12 is connected with the output shaft of motor 11, two cylinder slide bars 15 are symmetricly set on the both sides of leading screw 12, two cylinder slide bars 15 are all slidably connected with driver plate 16, the fixing seat 14 of slide bar that the two ends of each cylinder slide bar 15 are corresponding respectively connects, the fixing seat 14 of slide bar is fixed on below platform 5, and controller 10 is connected with motor 11 by data wire.Finished product all can directly be purchased by controller 10, motor 11, leading screw 12, and other parts are steel and process, sturdy and durable.Muscle 5-3 between two rectangular aperture 5-2 is used in bilateral wire filling laser welding termination process for providing rigid support bottom eyelid covering 2, it is prevented that stringer 1 and eyelid covering 2 are bent downwardly.Traction slide block 7, measurement slide block 8 can slide at driver plate 16 and level on draw bar 9 of measuring respectively, for mating the positioning round orifice 2-1 of varying level distance a on eyelid covering 2.
Detailed description of the invention two: present embodiment is described in conjunction with Fig. 1, in the upper surface of traction slide block 7 of present embodiment, the upper surface of measurement slide block 8 are generally aligned in the same plane with the upper surface of platform 5.Other composition and annexation and detailed description of the invention one identical.
Detailed description of the invention three: present embodiment is described in conjunction with Fig. 1, the slide block 7 that draws of present embodiment all adopts accurate milling, grinding to form with the matching surface of driver plate 16, measurement slide block 8 with the matching surface measuring the matching surface of draw bar 9, cylinder slide bar 15 and driver plate 16, and so design can meet quality of fit requirement.Other composition and annexation and detailed description of the invention one or two identical.
Detailed description of the invention four: in conjunction with Fig. 2, present embodiment being described, present embodiment and detailed description of the invention three also increase the difference is that it two reinforcements 13, and two reinforcement 13 symmetries are fixed on the outside of two cylinder slide bars 15 and are packed on platform 5.So design can increase the intensity of device, to improve its stability.Other composition and annexation and detailed description of the invention three identical.
Detailed description of the invention five: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the fixing seat 14 of the bearing block of present embodiment 13, four slide bars of 17, two reinforcements and four base supports 6 make one with platform 5.So design can improve the stability of device.Other composition and annexation and detailed description of the invention four identical.
Detailed description of the invention six: present embodiment is described in conjunction with Fig. 3～Fig. 7, present embodiment through the following steps that realize:
Step one, on eyelid covering 2 locating and machining circular hole 2-1: determine the horizontal range a and vertical distance b of four positioning round orifice according to eyelid covering 2 size, and utilize drilling machine at eyelid covering 2 position line N-N lateral symmetry four positioning round orifice 2-1 of processing to be welded, see Fig. 3, the relative position of positioning round orifice 2-1 is determined by horizontal range a and vertical distance b, and meet relation with eyelid covering 2 dimensional parameters: c/20≤a≤c/15 and e/50≤(e-b)≤e/30, wherein, c is the width of eyelid covering 2, and e is the length of eyelid covering 2；
Step 2, eyelid covering 2 positioned be installed: utilize four positioning round orifice 2-1 of preprocessing on eyelid covering 2 to draw slide block cylindrical positioning pins 7-1 respectively with two and two measure slide block cylindrical positioning pins 8-1 and coordinate, by eyelid covering 2 location and installation in platform 5, the upper surface drawing slide block 7, measurement slide block 8, make the position line N-N to be welded on eyelid covering 2 overlap with the longitudinal centre line M-M on platform 5, see Fig. 4；
Step 3, pre-tensile stress value is set and eyelid covering 2 is carried out prestretched: by the width c of eyelid covering 2, thickness d, the pre-tensile stress value σ set inputs in controller 10, control motor 11 by controller 10 and leading screw 12 rotates, driver plate 16 moves along leading screw 12, driver plate 16 drives two traction slide blocks 7 to move to the rear side of platform 5, stretch eyelid covering 2 and two measurement slide blocks 8 with moving platform 5 front end move, measure slide block 8, via measuring draw bar 9, real-time pulling force is passed to the pulling force sensor in controller 10, and calculated Live stretch stress value σ ' by controller 10, Live stretch stress value σ ' and pre-tensile stress value σ is compared, realize motor 11 and leading screw 12 are rotated carrying out feedback control；
Step 4, eyelid covering 2 to stringer 1 and prestretched carry out continuous print bilateral laser filling wire welding: be vertically placed on eyelid covering 2 by stringer 1 and overlap with position line N-N to be welded; see Fig. 5, Fig. 6 and Fig. 7; protect gas jets 20 to be respectively symmetrically 18, two laser beams of two welding wires 19, two and be positioned over stringer 1 both sides; the protection gas jets 20 of homonymy, laser beam 19, welding wire 18 order for set gradually from front to back; stringer 1 and eyelid covering 2 are carried out continuous print bilateral laser filling wire welding, it is thus achieved that without the T junction component of fire check 4.
Detailed description of the invention seven: present embodiment is the prefabricated tensile stress values σ and Live stretch stress value σ ' of eyelid covering 2 in the step 3 yield strength σ that all should be less than eyelid covering 2s.Other step is identical with detailed description of the invention six.
Detailed description of the invention eight: illustrate that present embodiment, present embodiment are in step 4 in conjunction with Fig. 7, when carrying out continuous print bilateral laser filling wire welding, keeps preset tensile stress values σ invariable.Other step is identical with detailed description of the invention six.
Detailed description of the invention nine: present embodiment is described in conjunction with Fig. 7 and Fig. 2, present embodiment is in step 4, while carrying out continuous print bilateral laser filling wire welding, control motor 11 by controller 10 and leading screw 12 rotates, making the Live stretch stress value σ ' in eyelid covering 2 reduce with constant rate of speed, pre-tensile stress value σ constant speed time namely from welding beginning is reduced to zero when welding terminates.Other step and detailed description of the invention six, seven or eight identical.
Detailed description of the invention ten: illustrate that present embodiment, present embodiment are in step 4 in conjunction with Fig. 7, adopts noble gas argon (Ar) or helium (He) that bilateral laser welded seam 3 is carried out real-time guard during bilateral laser filling wire welding.Other step is identical with detailed description of the invention nine.
Claims (10)
- null1. the device suppressing T junction component HOT CRACK FOR WELDING P，Described device includes platform (5)、Measure draw bar (9)、Controller (10)、Motor (11)、Leading screw (12)、Driver plate (16)、Bearing block (17)、Two tractions slide block (7)、Measure slide block (8) for two、Two cylinder slide bars (15)、Four fixing seats (14) of slide bar and four base supports (6)，Four base supports (6) are separately fixed at platform (5) corner place below，Platform (5) is provided with rectangular recess (5-1) and two rectangular apertures (5-2)，Rectangular recess (5-1) is positioned at the front end of platform (5)，Two rectangular apertures (5-2) are positioned at the rear end of platform (5)，Two rectangular apertures (5-2) opposed platforms longitudinal centre line (M-M) are symmetrical arranged，Measure slide block (8) for two to be all sleeved in measurement draw bar (9)，Measure draw bar (9) and be connected on the pulling force sensor in controller (10)，Controller (10) is fixed on platform (5)，Measure draw bar (9) to be arranged in rectangular recess (5-1)，Each rectangular aperture (5-2) arranges traction slide block (7)，And two tractions slide block (7) are all connected with driver plate (16)，The upper surface of traction slide block (7) is provided with traction slide block cylindrical positioning pins (7-1)，The upper surface measuring slide block (8) is provided with measurement slide block cylindrical positioning pins (8-1)，Driver plate (16) is arranged on below platform (5)，Driver plate (16) is threadeded with leading screw (12)，One end of leading screw (12) is arranged in bearing block (17)，The other end of leading screw (12) is connected with the output shaft of motor (11)，Two cylinder slide bars (15) are symmetricly set on the both sides of leading screw (12)，Two cylinder slide bars (15) are all slidably connected with driver plate (16)，Fixing seat (14) connection of slide bar that the two ends of each cylinder slide bar (15) are corresponding respectively，Slide bar is fixed seat (14) and is fixed on platform (5) below，Controller (10) is connected with motor (11) by data wire.
- 2. a kind of device suppressing T junction component HOT CRACK FOR WELDING P according to claim 1, it is characterised in that: in the upper surface of traction slide block (7), the upper surface of measurement slide block (8) are generally aligned in the same plane with the upper surface of platform (5).
- 3. a kind of device suppressing T junction component HOT CRACK FOR WELDING P according to claim 1 and 2, it is characterised in that: (7 all adopt accurate milling, grinding to form with the matching surface of driver plate (16), measurement slide block (8) with the matching surface measuring the matching surface of draw bar (9), cylinder slide bar (15) and driver plate (16) to draw slide block.
- 4. a kind of device suppressing T junction component HOT CRACK FOR WELDING P according to claim 3, it is characterized in that: described device also includes two reinforcements (13), two reinforcement (13) symmetries are fixed on the outside of two cylinder slide bars (15) and are packed on platform (5).
- 5. a kind of device suppressing T junction component HOT CRACK FOR WELDING P according to claim 4, it is characterised in that: described bearing block (17), two reinforcements (13), four fixing seats (14) of slide bar and four base supports (6) make one with platform (5).
- 6. one kind utilizes the method that device described in claim 1 realizes suppressing T junction component HOT CRACK FOR WELDING P, it is characterised in that: described method is through the following steps that realize:Step one, at the upper locating and machining circular hole (2-1) of eyelid covering (2): determine the horizontal range a and vertical distance b of four positioning round orifice according to eyelid covering (2) size, and utilize drilling machine eyelid covering (2) position line to be welded (N-N) lateral symmetry four positioning round orifice (2-1) of processing；Step 2, eyelid covering (2) is positioned it is installed: utilize four positioning round orifice (2-1) of the upper preprocessing of eyelid covering (2) to draw slide block cylindrical positioning pins (7-1) with two respectively and two measurements slide block cylindrical positioning pins (8-1) coordinate, by eyelid covering (2) location and installation in platform (5), the upper surface drawing slide block (7), measurement slide block (8), (M-M overlaps with the longitudinal centre line on platform (5) to make the position line N-N to be welded on eyelid covering (2)；nullStep 3、Pre-tensile stress value is set and eyelid covering (2) is carried out prestretched: by the width c of eyelid covering (2)、Thickness d、The pre-tensile stress value σ set inputs in controller (10)，Control motor (11) by controller (10) and leading screw (12) rotates，Driver plate (16) moves along leading screw (12)，Driver plate (16) drives two tractions slide block (7) to move to the rear side of platform (5)，Stretch eyelid covering (2) two measurement slide block (8) motions with moving platform (5) front end，Measure slide block (8), via measuring draw bar (9), real-time pulling force is passed to the pulling force sensor in controller (10)，And calculated Live stretch stress value σ ' by controller (10)，Live stretch stress value σ ' and pre-tensile stress value σ is compared，Realize motor (11) and leading screw (12) are rotated carrying out feedback control；Step 4, the eyelid covering (2) of stringer (1) and prestretched is carried out continuous print bilateral laser filling wire welding: stringer (1) is vertically placed on eyelid covering (2) and above and overlaps with position line N-N to be welded, by two welding wires (18), two laser beams (19), two protections gas jets (20) are respectively symmetrically and are positioned over stringer (1) both sides, the protection gas jets (20) of homonymy, laser beam (19), the order of welding wire (18) is for set gradually from front to back, stringer (1) and eyelid covering (2) are carried out continuous print bilateral laser filling wire welding, obtain the T junction component without fire check (4).
- 7. a kind of method suppressing T junction component HOT CRACK FOR WELDING P according to claim 6, it is characterised in that: in described step 3, the prefabricated tensile stress values σ and Live stretch stress value σ ' of eyelid covering (2) all should be less than the yield strength σ of eyelid covering (2)s。
- 8. a kind of method suppressing T junction component HOT CRACK FOR WELDING P according to claim 6, it is characterised in that: in described step 4, when carrying out continuous print bilateral laser filling wire welding, keep preset tensile stress values σ invariable.
- 9. a kind of method suppressing T junction component HOT CRACK FOR WELDING P according to claim 6,7 or 8, it is characterized in that: in described step 4, while carrying out continuous print bilateral laser filling wire welding, control motor (11) by controller (10) and leading screw (12) rotates, making the Live stretch stress value σ ' in eyelid covering (2) reduce with constant rate of speed, pre-tensile stress value σ constant speed time namely from welding beginning is reduced to zero when welding terminates.
- 10. a kind of method suppressing T junction component HOT CRACK FOR WELDING P according to claim 9; it is characterized in that: in described step 4, during bilateral laser filling wire welding, adopt noble gas argon (Ar) or helium (He) that bilateral laser welded seam (3) is carried out real-time guard.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950173A (en) * | 2018-08-10 | 2018-12-07 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| US10479155B2 (en) | 2017-02-16 | 2019-11-19 | Caterpillar Inc. | Cladding structure and method |
| CN112213013A (en) * | 2020-10-12 | 2021-01-12 | 贵州航天天马机电科技有限公司 | Testing device for regulating and controlling welding residual stress and deformation through pre-stretching |
| CN113399801A (en) * | 2021-06-10 | 2021-09-17 | 中车青岛四方机车车辆股份有限公司 | Welding device and welding system for inhibiting welding heat cracks |
| CN114226999A (en) * | 2021-12-16 | 2022-03-25 | 中航贵州飞机有限责任公司 | Laser cutting clamp for aircraft structural part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5550347A (en) * | 1993-02-04 | 1996-08-27 | Nippon Steel Corporation | Method of reducing welding distortion in one side welding for joining plates |
| CN103551766A (en) * | 2013-10-30 | 2014-02-05 | 南车四方车辆有限公司 | Metal box pre-stretching welding positioner and metal box pre-stretching welding method |
| CN106134313B (en) * | 2011-02-22 | 2014-02-19 | 北京卫星制造厂 | A kind of prestretching that is applied to VPPA welding |
| CN104827159A (en) * | 2014-12-11 | 2015-08-12 | 张涛 | Horizontal positioning drive apparatus for tab positioning |
| CN105312740A (en) * | 2015-11-10 | 2016-02-10 | 中船黄埔文冲船舶有限公司 | Aluminous thin-wall hull vertical welding seam prestress deformation control method and device |
-
2016
- 2016-05-31 CN CN201610378627.XA patent/CN105798471B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5550347A (en) * | 1993-02-04 | 1996-08-27 | Nippon Steel Corporation | Method of reducing welding distortion in one side welding for joining plates |
| CN106134313B (en) * | 2011-02-22 | 2014-02-19 | 北京卫星制造厂 | A kind of prestretching that is applied to VPPA welding |
| CN103551766A (en) * | 2013-10-30 | 2014-02-05 | 南车四方车辆有限公司 | Metal box pre-stretching welding positioner and metal box pre-stretching welding method |
| CN104827159A (en) * | 2014-12-11 | 2015-08-12 | 张涛 | Horizontal positioning drive apparatus for tab positioning |
| CN105312740A (en) * | 2015-11-10 | 2016-02-10 | 中船黄埔文冲船舶有限公司 | Aluminous thin-wall hull vertical welding seam prestress deformation control method and device |
Non-Patent Citations (2)
| Title |
|---|
| 赵耀邦: ""双向预置应力控制焊接变形及防止热裂纹研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 陈洁等: ""铝合金T型接头激光双侧填丝焊接工艺研究"", 《应用激光》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10479155B2 (en) | 2017-02-16 | 2019-11-19 | Caterpillar Inc. | Cladding structure and method |
| CN108950173A (en) * | 2018-08-10 | 2018-12-07 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| CN108950173B (en) * | 2018-08-10 | 2019-06-21 | 燕山大学 | A kind of device and technique of online induction heating removal straight seam welded pipe residual stress |
| CN112213013A (en) * | 2020-10-12 | 2021-01-12 | 贵州航天天马机电科技有限公司 | Testing device for regulating and controlling welding residual stress and deformation through pre-stretching |
| CN113399801A (en) * | 2021-06-10 | 2021-09-17 | 中车青岛四方机车车辆股份有限公司 | Welding device and welding system for inhibiting welding heat cracks |
| CN114226999A (en) * | 2021-12-16 | 2022-03-25 | 中航贵州飞机有限责任公司 | Laser cutting clamp for aircraft structural part |
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