CN106914708A - Laser twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods - Google Patents
Laser twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods Download PDFInfo
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- CN106914708A CN106914708A CN201710106607.1A CN201710106607A CN106914708A CN 106914708 A CN106914708 A CN 106914708A CN 201710106607 A CN201710106607 A CN 201710106607A CN 106914708 A CN106914708 A CN 106914708A
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- 238000003466 welding Methods 0.000 title claims abstract description 154
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000000205 computational method Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 230000008021 deposition Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
Laser twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods, belong to laser fusion pole electrical arc compound welding technology field.The present invention is in order in solving laser twin-wire indirect arc complex welding method, mariages is adjusted with laser facula relative position and wire feed rate is difficult to the problem that determines.Its device includes variable polarity welding power supply, laser welding head, the first welding wire position adjusting mechanism, the second welding wire position adjusting mechanism, the first wire feeder, the second wire feeder, the first welding wire, the second welding wire.Before welding, the first welding wire position adjusting mechanism and the second welding wire position adjusting mechanism are adjusted, it is possible to achieve the first welding wire, the second welding wire and laser beam are in same plane, the first welding wire, the second welding wire is intersected at laser facula；In welding process, the first welding wire and the second welding wire connect variable polarity welding power supply the two poles of the earth and form current loop respectively.The present invention is in laser twin-wire indirect arc composite welding.
Description
Technical field
The present invention relates to a kind of laser-twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods, it is
A kind of laser-arc hybrid welding in industry method, belongs to welding technology field.
Background technology
Solder technology is indispensable processing technology in modern processing manufacturing industry and industrial processes, currently to high-quality
The demand of efficient welding technology is more strong.The main path for realizing efficient welding is to improve speed of welding and deposition rate,
But the raising of these two aspects will finally be attributed to the lifting of welding current, and as the increase of welding current will necessarily increase welding
Heat input, causes the decline of welding quality.
It is a kind of new and effective welding method that laser-twin-wire indirect arc is combined, and it is by laser and mariages Indirect Electro
Two kinds of thermals source of arc are combined, and molten drop is alternatively formed using the double welding wires of indirect arc fusing, promote its smooth using laser irradiation molten drop
Transition, is capable of achieving the uneoupled control of welding process heat input and deposition rate.But there is mariages and laser facula in this welding method
Relative position regulation needs accurate adjustment and wire feed rate to be difficult to the problem for determining
The content of the invention
The present invention is relative with laser facula in order to solve to there is mariages in laser-twin-wire indirect arc complex welding method
Position adjustments need accurate adjustment and wire feed rate to be difficult to the problem for determining, there is provided a kind of laser-twin-wire indirect arc is combined
Welder and wire feed rate prediction computational methods.
It is of the present invention including variable polarity welding power supply, laser welding head, the first welding wire position adjusting mechanism, the second welding wire
Position adjusting mechanism, the first wire feeder, the second wire feeder, the first welding wire, the second welding wire.
A kind of laser-twin-wire indirect arc composite welding apparatus of the present invention, it includes variable polarity welding power supply, laser
Plumb joint, the first welding wire position adjusting mechanism, the second welding wire position adjusting mechanism, the first wire feeder, the second wire feeder,
One welding wire, the second welding wire.
Variable polarity welding power supply and the first welding wire and the second welding wire form loop, the end of the first welding wire and the second welding wire it
Between form indirect arc；
First welding wire position adjusting mechanism and the second welding wire position adjusting mechanism can be welded along tri- direction regulations first of X, Y, Z
Silk, the second welding wire position and laser beam are in same plane, and adjustable first welding wire, the angle of the second welding wire make mariages end
Intersect at O points at laser facula.
The variable polarity welding power supply is AC pulse power supply, with constant current output characteristic.
The wire feed rate prediction computational methods of the laser-twin-wire indirect arc composite welding apparatus, it includes following two
The individual stage：
First stage：
Variable polarity welding power supply constant current output, P extremely positive poles, N extremely negative poles, now, in the first welding wire and the second welding wire
Between form indirect arc, according to twin-wire indirect arc Anodic welding wire melting rate va less than negative electrode welding wire melting rate vc
The technical characterstic that characteristic and the first welding wire replace the formation molten drop at laser facula O points with the second welding wire (can for specified welding wire
It is calibrated in advance respectively as anode and the burn-off rate va and vc of negative electrode), anode melting speed va, negative electrode burn-off rate
Relation between vc, wire feed rate v three is：Negative electrode burn-off rate vc>Wire feed rate v>Anode melting speed va, then the first weldering
Silk as anode feed rate v1=v-va, the second welding wire as negative electrode pumpback speed v2=vc-v, this stage first welds
The molten drop of silk end is sent to laser facula O points, is opened laser irradiation molten drop and is aided in its transition；
Second stage：
Variable polarity welding power supply (1) constant current output, the first welding wire and the second welding wire dipole inversion, the first welding wire is used as negative electrode
Pumpback speed v1=vc-v, the second welding wire as anode feed rate v2=v-va, this wire tip of stage second it is molten
Drop is sent to laser facula O points, is opened laser irradiation molten drop and is aided in its transition；
Above-mentioned first stage and second stage constitute the first welding wire and the second welding wire in an ac cycle and replace in laser
Hot spot O points form the dynamic process of molten drop, and this process must make v1=v2, i.e. v-va=vc-v in periodically symmetrical presentation,
Thus formula is predictable calculates wire feed rate v=1/2 × (va+vc).
The principle of the invention：
Tested by actual welding and found, in laser-twin-wire indirect arc composite welding, can appear alternatively in molten drop
The wire feed rate scope of two welding wire intersection points (O points position) is smaller, it is difficult to determine.Therefore wire feed rate described in patent is produced to calculate
Method.
Two root wires in being connect for Variable Polarity twin-wire indirect arc welding, the welding wire of connecting welding power cathode is negative electrode,
The welding wire of connecting welding positive source is anode, and anode melting speed is more than according to welding arc theory negative electrode burn-off rate, if
Double synchronous wire feed speed are put between cathode and anode burn-off rate, so with the transformation of current polarity, both sides welding wire will be handed over
For the process for the pumpback of negative electrode welding wire occur, anode welding wire is sent into, just have molten drop and appear alternatively in O points position, in laser evaporation
The droplet transfer is realized under counter-force effect.
The negative electrode of the welding wire of certain ingredients, anode melting speed can be demarcated in advance, and formula just can be with according to right
Double synchronous wire feed speed are calculated, above procedure is realized.
The present invention can obtain following beneficial effect：
It is relative with laser facula that welder of the present invention and wire feed rate prediction computational methods realize mariages end
The flexible modulation of position, it is ensured that the end of mariages can be accurately sent into laser facula O points, and can be by welding wire respectively as sun
Pole and the burn-off rate of negative electrode, prediction calculate wire feed rate, have the advantages that design is simple, conveniently operate and easy to implement.
Brief description of the drawings
Fig. 1 is laser of the present invention-twin-wire indirect arc composite welding apparatus and wire feed rate prediction computational methods
Principle schematic.
In figure：1 is variable polarity welding power supply, 2 is laser welding head, 3-1 is the first welding wire position adjusting mechanism, 3-2 is
Second welding wire position adjusting mechanism, 4-1 are the first wire feeder, 4-2 is the second wire feeder, 5-1 is the first welding wire, 5-2 is
Second welding wire.
Specific embodiment
The equipment that the present embodiment is used includes：Variable polarity welding power supply 1, laser welding head 2, the first welding wire position adjustments machine
Structure 3-1, the second welding wire position adjusting mechanism 3-2, the first welding wire 5-1, the second welding wire 5-2.By the first welding wire position adjustments machine
Structure 3-1 and the second welding wire position adjusting mechanism 3-2 regulation the first welding wire 5-1 and the second welding wire 5-2 and laser beam be coplanar and edge
Feeding direction can intersect at O points.
First welding wire 5-1 and the second welding wire 5-2 is the ER50-6 carbon steel welding wires of diameter 1.2mm, and variable polarity welding power supply is defeated
Go out electric current for square-wave waveform, current amplitude 100A.In 100A electric currents, the anode of the first welding wire 5-1 and the second welding wire 5-2 is demarcated
Burn-off rate va is 2.4m/min, and negative electrode burn-off rate vc is 4.6m/min, and the formula v=1/ of wire feed rate is calculated according to prediction
2 × (va+vc) can calculate wire feed rate v for 3.5m/min.Under this wire feed rate, the first welding wire 5-1 and the second welding wire 5-2
Can replace in an ac cycle and form molten drop in laser facula O points.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
Specific implementation of the invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, its framework form can be flexible and changeable, can be with subseries product.Simply make some
Simple deduction or replace, are regarded as belonging to the scope of patent protection that the claims of the present invention by being submitted to determine.
Claims (3)
1. a kind of laser-twin-wire indirect arc composite welding apparatus, it is characterised in that it includes variable polarity welding power supply (1), swashs
Flush weld joint (2), the first welding wire position adjusting mechanism (3-1), the second welding wire position adjusting mechanism (3-2), the first wire feeder
(4-1), the second wire feeder (4-2), the first welding wire (5-1), the second welding wire (5-2)；
Variable polarity welding power supply (1) and the first welding wire (5-1) and the second welding wire (5-2) formation loop, the first welding wire (5-1) and the
Indirect arc is formed between the end of two welding wires (5-2)；
First welding wire position adjusting mechanism (3-1) and the second welding wire position adjusting mechanism (3-2) can be adjusted along tri- directions of X, Y, Z
First welding wire (5-1), the second welding wire (5-2) position and laser beam are in same plane, the first welding wire of regulation (5-1), second
The angle of welding wire (5-2) makes mariages intersect at O points at laser facula along feeding direction.
2. laser according to claim 1-twin-wire indirect arc composite welding apparatus, it is characterised in that the Variable Polarity
The source of welding current (1) is AC pulse power supply.
3. wire feed rate prediction calculating side is carried out using laser as claimed in claim 1-twin-wire indirect arc composite welding apparatus
Method, it is characterised in that it includes following two stages：
First stage：
Variable polarity welding power supply (1) constant current output, P extremely positive poles, N extremely negative poles, now, in the first welding wire (5-1) and second
Indirect arc is formed between welding wire (5-2), it is molten less than negative electrode welding wire according to twin-wire indirect arc Anodic welding wire melting rate va
The characteristic and the first welding wire (5-1) for changing speed vc replace the technology that molten drop is formed at laser facula O points with the second welding wire (5-2)
Feature, determines that the relation between anode melting speed va, negative electrode burn-off rate vc, wire feed rate v three is：Negative electrode burn-off rate
vc>Wire feed rate v>Anode melting speed va, then the first welding wire (5-1) as anode feed rate v1=v-va, the second weldering
Silk (5-2) as negative electrode pumpback speed v2=vc-v, the molten drop of this stage first welding wire (5-1) end is sent to laser light
Spot O points, open laser irradiation molten drop and aid in its transition；
Second stage：
Variable polarity welding power supply (1) constant current output, the first welding wire (5-1) and the second welding wire (5-2) dipole inversion, the first welding wire
(5-1) as negative electrode pumpback speed v1=vc-v, the second welding wire (5-2) as anode feed rate v2=v-va, this rank
The molten drop of section the second welding wire (5-2) end is sent to laser facula O points, is opened laser irradiation molten drop and is aided in its transition；
Above-mentioned first stage and second stage constitute the first welding wire (5-1) and the second welding wire (5-2) in an ac cycle and replace
The dynamic process of molten drop is formed in laser facula O points, this process must make v1=v2, i.e. v-va in periodically symmetrical presentation
=vc-v, thus formula prediction calculates wire feed rate v=1/2 × (va+vc).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106607.1A CN106914708B (en) | 2017-02-27 | 2017-02-27 | Laser twin-wire indirect arc composite welding apparatus and wire feed rate predict calculation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106607.1A CN106914708B (en) | 2017-02-27 | 2017-02-27 | Laser twin-wire indirect arc composite welding apparatus and wire feed rate predict calculation method |
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| CN106914708A true CN106914708A (en) | 2017-07-04 |
| CN106914708B CN106914708B (en) | 2019-10-29 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500451A (en) * | 2018-06-05 | 2018-09-07 | 西南交通大学 | It is a kind of can two-way welding laser narrow gap welding device and its welding method |
| CN108500266A (en) * | 2018-04-19 | 2018-09-07 | 河北科技大学 | 7000 line aluminium alloy increasing material manufacturing method and system |
| CN110091035A (en) * | 2019-06-03 | 2019-08-06 | 河北科技大学 | A kind of high-entropy alloy increasing material manufacturing device and increasing material manufacturing method |
| CN110860796A (en) * | 2019-09-13 | 2020-03-06 | 上海航天设备制造总厂有限公司 | Aluminum alloy small-current arc online cleaning auxiliary laser filler wire welding method |
| WO2021036206A1 (en) * | 2019-08-30 | 2021-03-04 | 大连理工大学 | Variable-polarity three-wire gas-shielded indirect arc welding method and device, and use thereof |
| CN112518062A (en) * | 2020-11-04 | 2021-03-19 | 哈尔滨工业大学（威海） | Laser alternate wire filling welding method for regulating and controlling dissimilar joint elements |
| CN113458601A (en) * | 2021-07-02 | 2021-10-01 | 广东普电自动化科技股份有限公司 | Double wire feeding laser welding gun and welding method |
| CN115971662A (en) * | 2022-12-06 | 2023-04-18 | 哈尔滨焊接研究院有限公司 | Narrow gap laser-double arc double wire composite welding method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500266A (en) * | 2018-04-19 | 2018-09-07 | 河北科技大学 | 7000 line aluminium alloy increasing material manufacturing method and system |
| CN108500266B (en) * | 2018-04-19 | 2020-01-07 | 河北科技大学 | 7000 series aluminum alloy additive manufacturing method and system |
| CN108500451A (en) * | 2018-06-05 | 2018-09-07 | 西南交通大学 | It is a kind of can two-way welding laser narrow gap welding device and its welding method |
| CN108500451B (en) * | 2018-06-05 | 2023-08-11 | 西南交通大学 | Welding method of laser narrow-gap welding device capable of achieving bidirectional welding |
| CN110091035A (en) * | 2019-06-03 | 2019-08-06 | 河北科技大学 | A kind of high-entropy alloy increasing material manufacturing device and increasing material manufacturing method |
| WO2021036206A1 (en) * | 2019-08-30 | 2021-03-04 | 大连理工大学 | Variable-polarity three-wire gas-shielded indirect arc welding method and device, and use thereof |
| CN110860796A (en) * | 2019-09-13 | 2020-03-06 | 上海航天设备制造总厂有限公司 | Aluminum alloy small-current arc online cleaning auxiliary laser filler wire welding method |
| CN110860796B (en) * | 2019-09-13 | 2021-08-17 | 上海航天设备制造总厂有限公司 | Aluminum alloy small-current arc online cleaning auxiliary laser filler wire welding method |
| CN112518062A (en) * | 2020-11-04 | 2021-03-19 | 哈尔滨工业大学（威海） | Laser alternate wire filling welding method for regulating and controlling dissimilar joint elements |
| CN113458601A (en) * | 2021-07-02 | 2021-10-01 | 广东普电自动化科技股份有限公司 | Double wire feeding laser welding gun and welding method |
| CN115971662A (en) * | 2022-12-06 | 2023-04-18 | 哈尔滨焊接研究院有限公司 | Narrow gap laser-double arc double wire composite welding method |
| CN115971662B (en) * | 2022-12-06 | 2023-11-14 | 哈尔滨焊接研究院有限公司 | Narrow-gap laser-double-arc double-wire composite welding method |
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