CN112809184A - laser-GMA electric arc composite heat source wire-filling self-adaptive welding method - Google Patents

laser-GMA electric arc composite heat source wire-filling self-adaptive welding method Download PDF

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Publication number
CN112809184A
CN112809184A CN202110151015.8A CN202110151015A CN112809184A CN 112809184 A CN112809184 A CN 112809184A CN 202110151015 A CN202110151015 A CN 202110151015A CN 112809184 A CN112809184 A CN 112809184A
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welding
wire
laser
groove
additional
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雷振
徐良
徐富家
杨海锋
王旭友
张彦东
李�荣
陈晓宇
蒋宝
曹浩
徐楷昕
李林
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Harbin Welding Guochuang Qingdao Welding Engineering Innovation Center Co ltd
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Harbin Welding Guochuang Qingdao Welding Engineering Innovation Center Co ltd
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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
    • B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
    • B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Arc Welding In General (AREA)

Abstract

A laser-GMA electric arc composite heat source wire-filling self-adaptive welding method. The existing method for realizing welding self-adaptation by directly adjusting welding current has the defects that the arc is unstable due to the fact that the current is suddenly large or small, and the stability and the welding quality of the welding process are influenced. The invention comprises the following components: control system (13), control system respectively with send a machine (12), laser instrument (14), laser sensor (15) are connected, send a machine with additional filler wire (3) to the position of welding groove (7), additional filler wire left side is GMA electric arc (2), the right side is laser beam (4), utilize laser sensor to detect the change of stripe (5) real-time measurement welding groove, under the prerequisite that does not increase GMA electric arc power, realize the melting of welding wire through extra filler wire and the surplus heat that utilizes welding process, additional filler wire filling amount and groove change, point location solder joint coordinate position forms closed loop feedback control. The invention is used for the laser-GMA electric arc composite heat source wire-filling self-adaptive welding method.

Description

laser-GMA electric arc composite heat source wire-filling self-adaptive welding method
Technical Field
The invention relates to the technical field of laser processing, in particular to a laser-GMA electric arc composite heat source wire-filling self-adaptive welding method.
Background
The laser-GMA (GMA is short for gas metal arc welding arc, including MIG and MAG) arc composite heat source welding technology has the technical advantage of high-speed deep fusion welding, a small groove design is usually adopted in middle thin plate welding, the influence of an assembly gap on the variation of groove filling area is large, under the condition of high-speed welding, because the size of a welding seam of the laser-GMA arc composite heat source is relatively small, the phenomenon that the welding seam is not filled easily occurs at the position with a large gap, in addition, the influence of a positioning welding point on the welding seam surface forming and welding root penetration is also large, the welding is easily influenced by the size of the positioning welding point when welding parameters are fixed, and on one hand, the welding seam surface protrusion phenomenon occurs at the positioning welding point, and the appearance of the welding seam is influenced; on the other hand, the existence of the positioning welding point easily causes that the root welding line can not be melted through, when the problem of welding line forming caused by groove change and the positioning welding point is solved, in the prior art, closed-loop feedback control is mainly established for groove size change and welding current through a laser sensor, the welding current is adjusted in time according to the change of the groove to change the quantity of deposited metal, thus realizing the self-adaptive adjustment of the welding process, however, the current method for realizing welding self-adaptation by directly adjusting the welding current (or indirectly adjusting the welding current by changing the wire feeding speed) has a fatal defect that the small and large change of the current easily causes unstable arc, influences the stability of the welding process and the welding quality, the above-mentioned method of directly adapting the welding process by adjusting the welding current also has the same outstanding problem of unstable arc in conventional arc welding.
Disclosure of Invention
The invention aims to provide a laser-GMA electric arc composite heat source wire filling self-adaptive welding method, which improves the deposition efficiency of composite welding by additionally filling a welding wire under the condition of laser-GMA electric arc composite high-speed welding, and realizes self-adaptive matching control on the wire feeding speed of the welding wire, the area change of a welding groove and a positioning welding point.
The above purpose is realized by the following technical scheme:
a laser-GMA electric arc composite heat source wire-filling self-adaptive welding method comprises the following steps: the control system is respectively connected with the wire feeder, the laser and the laser sensor, the wire feeder sends an additional filler wire to the position of the welding groove, the left side of the additional filler wire is GMA electric arc, the right side of the additional filler wire is laser beam, the laser sensor in the laser sensor integrated communication system is used for detecting stripes and measuring the change of the welding groove in real time, on the premise of not increasing the power of the GMA electric arc, the melting of the welding wire is realized by the additional filler wire and the surplus heat in the welding process, the filling quantity of the additional filler wire, the change of the groove and the coordinate position of a point position welding point form closed-loop feedback control, and meanwhile, the closed-loop feedback control of the laser power and the position of the positioning welding point is also realized;
the method specifically comprises the following steps:
(1) compounding a laser beam and a GMA electric arc in a paraxial compounding mode, additionally filling an additional filler wire into a composite welding molten pool, consuming surplus heat of the molten pool to melt the filler wire, and improving deposition efficiency on the premise of not increasing welding heat input;
(2) measuring the change of the groove in real time by using a laser sensor, feeding detection data back to a control system, and establishing a closed loop feedback system of the change of the groove size and the change of the wire feeding speed of the additional filler welding wire;
(3) preparing a standard groove sample and calculating the filling area A of the cross section of the groove during gapless assembly0And selecting basic process parameters through tests to ensure reliable filling and good forming of the standard sample, wherein the basic process parameters comprise: welding speed V and laser power P0Welding current I, arc voltage U, wire feed speed V of the additional welding wiref0；
(4) Setting up welding parameters of the positioning welding line and a control standard of the size of the cross section of the positioning welding line to ensure that the area A of the cross section of the positioning welding line1And at the wire feed speed V alonef0The cross-sectional areas of the weld joints formed by melting the additional welding wires are the same;
(5) establishing different groove areas AiCorresponding additional filler wire feed speed VfiA process database;
(6) obtaining laser power P capable of realizing reliable penetration of the root of the positioning welding spot position through tests under the condition of welding basic process parameters in the step (3)1；
(7) In the welding process, the area A of the welding groove is welded by the laser sensoriReal-time detection is carried out, and the additional filler wire control system adjusts the wire feeding speed of the additional filler wire in a closed loop mode according to the detected groove area data and a process database, so that uniform filling of a welding seam in the whole welding process is ensured;
(8) in the welding process, the laser sensor also detects the position of the positioning welding spot in real time and feeds the detected position back to the control system in real time, the control system reduces the wire feeding speed of the additional filler wire, prevents the surface of the welding seam from being raised due to the existence of the positioning welding spot on the surface of the welding seam, and simultaneously increases the laser power to P1And the penetration of the root of the welding line is ensured.
The laser-GMA electric arc composite heat source wire-filling self-adaptive welding method has the advantages that when a positioning welding seam is met, if the positioning welding seam is met, the self-adaptive welding method is adoptedInstantaneous additional wire feed speed Vfi≤Vf0If so, the wire feeding speed of the additional welding wire is reduced to 0 in the whole positioning welding seam interval; if the instantaneous additional welding wire feeding speed V is presentfi>Vf0Then, the wire feeding speed of the additional welding wire is reduced to V in the whole positioning welding seam intervalfi-Vf0。
According to the laser-GMA electric arc composite heat source wire-filling self-adaptive welding method, when a positioning welding seam is met, a control system controls the laser power to be P0Increase to P1Laser power P1The root penetration of the positioning weld cross section size fluctuation +/-15% can be ensured.
According to the laser-GMA electric arc composite heat source wire filling self-adaptive welding method, the additional filler wire swings along a certain frequency and swing amplitude in the direction perpendicular to the welding direction, so that good spreading of weld metal after filling the filler wire is ensured, the swing frequency of the filler wire is 0-100 HZ, and the swing amplitude is 0-5 mm.
The laser-GMA electric arc composite heat source wire filling self-adaptive welding method is suitable for single-pass welding of a middle thin plate or multi-layer single-pass welding of a middle plate, and the additional wire feeding speed is according to the change rate delta of the groove areaAiThe value is adjusted according to a process database, the database is established by deltaAiGroove area change value δ with =0.05% as minimum identification unitAiLess than 0.05%, it is not adjusted by the control system.
Has the advantages that:
1. the invention relates to a laser-GMA electric arc composite heat source wire filling self-adaptive welding method, which is provided on the basis of the original patent ZL201410092005.1 of the invention and realizes the melting of welding wires by additionally filling the welding wires and utilizing the surplus heat in the welding process on the premise of not increasing the power of the GMA electric arc, the closed-loop feedback control is formed by the filling amount of the additional welding wires, the groove change and the coordinate position of a point welding point, and the closed-loop feedback control is also realized by the laser power and the position of a positioning welding point, so that the good forming of the surface of a welding line and the reliable penetration of a root welding line at the position of the positioning welding point under the complex working conditions of groove gap change, the positioning welding point and the like are ensured.
2. The additionally filled welding wire does not generate electric arc, the change of the additionally filled welding wire does not influence the stability of the welding electric arc, the outstanding problems that the electric arc is unstable due to the change of the current, and the stability and the welding quality of the welding process are influenced are well solved, and the novel efficient welding method is also provided.
3. The invention has the outstanding advantages that: (1) under the condition that the welding current is fixed and unchanged, the self-adaption of the welding process along with the change of the groove size is realized by adjusting the filling amount of the additional welding wire, and the problem of unstable electric arc caused by the traditional self-adaption mode of directly adjusting the welding current is solved; (2) the problems of welding seam surface protrusion and root difficult reliable penetration of the positioning welding spot position in the middle thin plate welding are solved; (3) under the condition of ensuring that the welding heat input of the laser-GMA electric arc composite heat source is not changed, the welding wire deposition efficiency of the composite welding process is remarkably increased through the additional filling of welding wires, and the welding wire deposition efficiency can be improved by 0.5-1 time; (4) the welding process can not increase the welding heat input, but can greatly improve the heat efficiency of the molten pool, thereby improving the metal structure performance of the welding seam, reducing the damage of the welding heat input to the material and reducing the welding deformation.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 shows the area of the groove of the standard sample of the present invention is A0Schematic structural diagram of (1).
FIG. 3 shows the cross-sectional area A of the positioning welding spot in the groove of the present invention1Schematic structural diagram of (1).
FIG. 4 is a schematic diagram of the laser power waveform and the filler wire feed speed waveform.
Wherein: 1. welding seam, 2, GMA electric arc, 3, additional filler wire, 4, laser beam, 5, laser sensor detection stripe, 6, positioning welding point, 7, welding groove, 8 and standard sample groove area A 09, the cross section area A of the positioning welding spot in the groove 110, laser power waveform, 11, filler wire feeding speed waveform, 12, wire feeder, 13 and control system14, a laser, 15 and a laser sensor integrated communication system.
The specific implementation mode is as follows:
example 1:
a laser-GMA electric arc composite heat source wire-filling self-adaptive welding method comprises the following steps: the control system 13 is respectively connected with the wire feeder 12, the laser 14 and the laser sensor 15, the wire feeder sends an additional filler wire 3 to the position of the welding groove 7, the left side of the additional filler wire is GMA arc 2, the right side of the additional filler wire is laser beam 4, the laser sensor is used for detecting the change of the stripe 5 to measure the welding groove in real time, on the premise of not increasing the power of the GMA arc, the welding wire is melted by the additional filler wire and the surplus heat in the welding process, the filling quantity of the additional filler wire, the change of the groove and the coordinate position of a point position welding point form closed-loop feedback control, and meanwhile, the closed-loop feedback control of the laser power and the position of the positioning welding point 6 is also realized;
the method specifically comprises the following steps:
(1) compounding a laser beam and a GMA electric arc in a paraxial compounding mode, additionally filling an additional filler wire into a composite welding molten pool, consuming surplus heat of the molten pool to melt the filler wire, and improving deposition efficiency on the premise of not increasing welding heat input;
(2) measuring the change of the groove in real time by using a laser sensor, feeding detection data back to a control system, and establishing a closed loop feedback system of the change of the groove size and the change of the wire feeding speed of the additional filler welding wire;
(3) preparing a standard groove sample and calculating the filling area A of the cross section of the groove during gapless assembly0And selecting basic process parameters through tests to ensure reliable filling and good forming of the standard sample, wherein the basic process parameters comprise: welding speed V and laser power P0Welding current I, arc voltage U, wire feed speed V of the additional welding wiref0；
(4) Setting up welding parameters of the positioning welding line and a control standard of the size of the cross section of the positioning welding line to ensure that the area A of the cross section of the positioning welding line1And at the wire feed speed V alonef0Melting additional wire shapeThe cross section areas of the weld joints are the same;
(5) establishing different groove areas AiCorresponding additional filler wire feed speed VfiA process database;
(6) obtaining laser power P capable of realizing reliable penetration of the root of the positioning welding spot position through tests under the condition of welding basic process parameters in the step (3)1；
(7) In the welding process, the area A of the welding groove is welded by the laser sensoriReal-time detection is carried out, and the additional filler wire control system adjusts the wire feeding speed of the additional filler wire in a closed loop mode according to the detected groove area data and a process database, so that uniform filling of a welding seam in the whole welding process is ensured;
(8) in the welding process, the laser sensor also detects the position of the positioning welding spot in real time and feeds the detected position back to the control system in real time, the control system reduces the wire feeding speed of the additional filler wire, prevents the surface of the welding seam from being raised due to the existence of the positioning welding spot on the surface of the welding seam, and simultaneously increases the laser power to P1And the penetration of the root of the welding line is ensured.
Example 2:
according to the laser-GMA electric arc composite heat source wire filling self-adaptive welding method of the embodiment 1, when a positioning welding seam is met, the instantaneous additional wire feeding speed V is adoptedfi≤Vf0If so, the wire feeding speed of the additional welding wire is reduced to 0 in the whole positioning welding seam interval; if the instantaneous additional welding wire feeding speed V is presentfi>Vf0Then, the wire feeding speed of the additional welding wire is reduced to V in the whole positioning welding seam intervalfi-Vf0。
Example 3:
according to the laser-GMA electric arc composite heat source wire-filling self-adaptive welding method in embodiment 1, when a tack weld is met, the control system enables the laser power to be changed from P0Increase to P1Laser power P1The root penetration of the positioning weld cross section size fluctuation +/-15% can be ensured.
Example 4:
according to the laser-GMA electric arc composite heat source wire filling self-adaptive welding method in the embodiment 1, the additional filler wire swings along a certain frequency and swing amplitude in the direction perpendicular to the welding direction, so that good spreading of weld metal after the filler wire is filled is ensured, the swing frequency of the filler wire is 0-100 HZ, and the swing amplitude is 0-5 mm.
Example 5:
the laser-GMA electric arc composite heat source wire-filling self-adaptive welding method in embodiment 1 is suitable for medium-thin plate single-pass welding or medium-plate multilayer single-pass welding, and the additional wire feeding speed is changed according to the groove area change rate deltaAiThe value is adjusted according to a process database, the database is established by deltaAiGroove area change value δ with =0.05% as minimum identification unitAiLess than 0.05%, it is not adjusted by the control system.
The specific implementation case is as follows:
(1) 6005A aluminium alloy section bar embodiment
The method disclosed by the patent is used for welding the 6005A aluminum alloy section, and the welding result is compared with the result of the traditional laser-MIG composite welding. The test base material is a 6005A aluminum alloy section, the section is in a T6 state, the section specification is 2000 multiplied by 500 multiplied by 120 mm, the plate thickness of a welding area is 4mm, the joint is in a butt joint form, a 30-degree groove is formed, the truncated edge is 1mm, one end of the test section is assembled without a gap, and the other end of the test section is artificially reserved with a 1mm gap. The welding wire is ER5087 aluminum alloy welding wire with the diameter phi of 1.2 mm, a pulse MIG electric arc is adopted in the welding process, laser is arranged in front of the welding wire during compounding, and the electric arc is arranged behind the welding wire. In the implementation process, the laser-MIG composite heat source wire filling welding adopts a mode of feeding wires from the middle of two heat sources of laser and electric arc, and the welding basic technological parameters are as follows: the welding speed is 3.2 m/min, the laser power P0=5000W, the welding current is 180A, the wire feeding speed Vf of the additional welding wire is 0= 3.0 m/min, the swing frequency of the welding wire is 5 HZ, the swing amplitude is 2 mm, the laser power P1=6000W at the position of the positioning welding point, the positioning welding point is flush with the surface of the groove, when the gap of the groove is 1mm, the wire feeding speed Vf of the additional welding wire is 0= 7.0 m/min, the used laser is a fiber laser, the protective gas is industrial pure argon, and the flow of the protective gas is 20L/min. By utilizing the method, the self-adaptive control is realized in the welding process, the whole welded joint surface is well formed after welding, no obvious protrusion exists on the welded joint surface at the position of the positioning welding point, and the phenomenon of insufficient filling does not occur in the formed welded joint surface after the welding changes along with the gap of the groove; and the cross section of the welding seam is sampled at the position of the positioning welding spot, and the root of the welding seam is well melted through.
(2) Q235 steel butt welding implementation case
The laser-MAG composite heat source wire filling butt joint test is respectively carried out on a Q235 test plate by utilizing the patented method. The test base metal is Q235 low-carbon steel, the specification of the test plate is 1000 multiplied by 120 multiplied by 8 mm, the bevel angle is 30 degrees, the truncated edge is 4mm, one end of the test plate is assembled without a gap, a gap of 0.5mm is reserved on the other end of the test plate, the used welding wire is an ER50-6 gas shielded welding wire with the diameter phi of 1.2 mm, a pulse MAG electric arc is adopted in the welding process, the electric arc is in the front during compounding, and laser is in the back. The laser is a fiber laser, the protective gas is 80% Ar +20% CO2, and the flow rate of the protective gas is 20L/min. Welding basic process parameters: the welding speed is 1.2 m/min, the laser power P0=6800W, the welding current is 200A, the wire feeding speed Vf of an additional welding wire is 0=2.5 m/min, the swing frequency of the welding wire is 5 HZ, the swing amplitude is 3mm, the laser power P1=8000W at the position of a positioning welding point, the positioning welding point is flush with the surface of a groove, when the gap of the groove is 0.5mm, the wire feeding speed Vf of the additional welding wire is 0= 5.5 m/min, and the used laser is a fiber laser. By utilizing the method, the self-adaptive control is realized in the welding process, the whole welded joint surface is well formed after welding, no obvious protrusion exists on the welded joint surface at the positioning welding spot position, the phenomenon of insufficient filling does not occur in the formed welded joint surface after the welding changes along with the groove gap, and the root penetration of the welded joint at the positioning welding spot position is good.

Claims (5)

1. A laser-GMA electric arc composite heat source wire-filling self-adaptive welding method comprises the following steps: the control system is characterized in that: the control system is respectively connected with a wire feeder, a laser and a laser sensor integrated communication system, the wire feeder feeds an additional filler wire to the position of a welding groove, the left side of the additional filler wire is GMA electric arc, the right side of the additional filler wire is laser beam, the laser sensor is used for detecting stripes to measure the change of the welding groove in real time, on the premise of not increasing the power of the GMA electric arc, the melting of the welding wire is realized by the additional filler wire and the surplus heat in the welding process, the filling quantity of the additional filler wire, the change of the groove and the coordinate position of a point position welding point form closed-loop feedback control, and meanwhile, the closed-loop feedback control of the laser power and the position of the positioning welding point is;
the method specifically comprises the following steps:
(1) compounding a laser beam and a GMA electric arc in a paraxial compounding mode, additionally filling an additional filler wire into a composite welding molten pool, consuming surplus heat of the molten pool to melt the filler wire, and improving deposition efficiency on the premise of not increasing welding heat input;
(2) measuring the change of the groove in real time by using a laser sensor, feeding detection data back to a control system, and establishing a closed loop feedback system of the change of the groove size and the change of the wire feeding speed of the additional filler welding wire;
(3) the method comprises the following steps of formulating a standard groove sample, calculating a groove cross section filling area A0 during gapless assembly, and selecting basic technological parameters through tests to ensure reliable filling and good forming of the standard sample, wherein the basic technological parameters comprise: welding speed V, laser power P0, welding current I, arc voltage U, wire feed speed Vf0 of the additional welding wire;
(4) setting welding parameters of the positioning welding seam and a control standard of the cross section size of the positioning welding seam, so that the cross section area A1 of the positioning welding seam is the same as the cross section area of the welding seam formed by melting an additional welding wire at a single wire feeding speed Vf 0;
(5) establishing an additional filler wire feeding speed Vfi process database corresponding to different groove areas Ai;
(6) under the condition of welding basic process parameters in the step (3), obtaining laser power P1 capable of realizing reliable penetration of the root part of the positioning welding spot position through tests;
(7) in the welding process, the laser sensor detects the welding groove area Ai in real time, and the additional filler wire control system adjusts the wire feeding speed of the additional welding wire in a closed loop according to the detected groove area data and a process database, so that the uniform filling of the welding seam in the whole welding process is ensured;
(8) in the welding process, the laser sensor also detects the position of the positioning welding point in real time, and feeds the detected position back to the control system in real time, the control system reduces the wire feeding speed of the additional filler wire, the surface of the welding line is prevented from being raised due to the existence of the positioning welding point on the surface of the welding line, meanwhile, the laser power is increased to P1, and the penetration of the root of the welding line is ensured.
2. The laser-GMA arc composite heat source wire-filling adaptive welding method as claimed in claim 1, which is characterized in that: when a tack weld is encountered, the instantaneous additional wire feed speed Vfi≤Vf0If so, the wire feeding speed of the additional welding wire is reduced to 0 in the whole positioning welding seam interval; if the instantaneous additional welding wire feeding speed V is presentfi>Vf0Then, the wire feeding speed of the additional welding wire is reduced to V in the whole positioning welding seam intervalfi-Vf0。
3. The laser-GMA arc composite heat source wire-filling adaptive welding method as claimed in claim 1, which is characterized in that: when a positioning welding seam is met, the control system enables the laser power to be changed from P0Increase to P1Laser power P1The root penetration of the positioning weld cross section size fluctuation +/-15% can be ensured.
4. The laser-GMA electric arc composite heat source wire-filling adaptive welding method as claimed in claim 2 or 3, which is characterized in that: the additional filler wire swings along a certain frequency and swing amplitude in the direction perpendicular to the welding direction to ensure that weld metal is well spread after the filler wire is filled, the swing frequency of the filler wire is 0-100 HZ, and the swing amplitude is 0-5 mm.
5. The laser-GMA electric arc composite heat source wire-filling adaptive welding method as claimed in claim 2 or 3, which is characterized in that: the welding method is suitable for single-pass welding of medium-thin plates or multi-layer single-pass welding of medium plates, and the additional wire feeding speed is changed according to the area change rate delta of the grooveAiThe value is adjusted according to a process database, the database is established by deltaAiGroove area change value δ with =0.05% as minimum identification unitAiLess than 0.05%, which is not controlled by the control systemAnd (6) adjusting.
CN202110151015.8A 2021-02-04 2021-02-04 laser-GMA electric arc composite heat source wire-filling self-adaptive welding method Pending CN112809184A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700589A (en) * 2022-04-21 2022-07-05 南京理工大学 Aluminum alloy sheet butt weld reinforcement control device and method for compensating weld gap
CN115121914A (en) * 2022-08-31 2022-09-30 江阴市华昌不锈钢管有限公司 Processing system for service stainless steel welding wire feeding decision
WO2022257669A1 (en) * 2021-06-11 2022-12-15 哈尔滨焊接研究院有限公司 Pulsed wire feeding method based on laser-gma arc composite heat source wire-filled welding
CN117961393A (en) * 2024-04-01 2024-05-03 江苏威士智能装备有限公司 Automatic welding device and working method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022257669A1 (en) * 2021-06-11 2022-12-15 哈尔滨焊接研究院有限公司 Pulsed wire feeding method based on laser-gma arc composite heat source wire-filled welding
CN114700589A (en) * 2022-04-21 2022-07-05 南京理工大学 Aluminum alloy sheet butt weld reinforcement control device and method for compensating weld gap
CN114700589B (en) * 2022-04-21 2024-06-18 南京理工大学 Device and method for controlling butt-joint weld seam surplus height of aluminum alloy sheet for compensating weld seam gap
CN115121914A (en) * 2022-08-31 2022-09-30 江阴市华昌不锈钢管有限公司 Processing system for service stainless steel welding wire feeding decision
CN117961393A (en) * 2024-04-01 2024-05-03 江苏威士智能装备有限公司 Automatic welding device and working method

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