CN101947696A - Welding device for compounding ultrasonic focusing sound field with molten pole arc welding - Google Patents
Welding device for compounding ultrasonic focusing sound field with molten pole arc welding Download PDFInfo
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- CN101947696A CN101947696A CN 201010291292 CN201010291292A CN101947696A CN 101947696 A CN101947696 A CN 101947696A CN 201010291292 CN201010291292 CN 201010291292 CN 201010291292 A CN201010291292 A CN 201010291292A CN 101947696 A CN101947696 A CN 101947696A
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Abstract
The invention provides a welding device for compounding an ultrasonic focusing sound field with molten pole arc welding for improving the energy density of ultrasonic, changing the arc shape and the energy density and realizing high-efficiency high-quality welding. The welding device comprises a molten pole welding wire, a conductive pole, an ultrasonic transducer, an axle center through hole ultrasonic amplitude transformer, a welding nozzle, a focusing surface, a welding arc, a workpiece to be welded, a welding power supply and an ultrasonic power supply, wherein the molten pole welding wire passes through the conductive pole and is in sliding contact with the conductive pole, the ultrasonic power supply is connected with the ultrasonic transducer through a cable, the ultrasonic transducer is connected with the ultrasonic amplitude transformer through a bolt, and the focusing surface is positioned at the lower end part of the ultrasonic amplitude transformer. The invention ensures that the arc is compressed to improve the arc energy density, increase weld penetration and improve weld formation. The invention can change the arc shape and the heat generation characteristic and the transition form of molten metal, realizes the high-efficiency high-quality welding, and enlarges the application range of the arc welding.
Description
(1) technical field
The present invention relates to solder technology, is exactly the compound welder of a kind of ultrasonic wave focusing acoustic field and melt pole electrical arc welding specifically.
(2) background technology
Be welded in the modern industrial production, become a kind of important metal working process, be widely used in industrial departments such as metal structure, bridge, shipbuilding, Aeronautics and Astronautics, ocean engineering, Nuclear Power Engineering.Along with science and technology development, welding has developed into an independently subject.Wherein, the evolution that can be described as welding heat source is said in the evolution of molten solder in some sense.Electric arc constantly obtains renewal and perfect as welding heat source after the exploitation eighties in 19th century.Along with continually developing of industrial circle new material and new construction and improving constantly of quality control requirement, need constantly develop new welding heat source and new welding procedure.From the trend of development, the angle development that welding progressively consumes to high efficiency, high-quality, reduction labour intensity, reduction energy.From this point, as the electric arc improvement direction of welding heat source be: the heat high concentration can realize welding process fast, guarantees to obtain fine and close and tough weld seam.Under the guidance of this direction, carried out diversified composite arc soldering method research in recent years, wherein just comprise the compound of ultrasonic wave and electric arc welding process.200710144659.4 and in 200710144660.7 the patent, disclose the compound welding method of ultrasonic wave and non-melt pole and metal arc welding respectively.Make by ultrasonic vibration installation to produce ultrasonic vibration on the welding electrode, arc shape has produced tangible shrinkage phenomenon, has realized concentrating of arc energy.Resulting weld penetration increases, and has realized the high-quality welding under the common welding surroundings.But, the characteristics of transmitting by sound wave as can be known, ultrasonic wave radiating surface radius in the radiation delivery process can be expanded gradually, causes the sound field energy density to increase along with the distance with supersonic source and reduces rapidly.Simultaneously, because the arc welding electrode sections is long-pending less, limited by the radiable ultrasonic power of electrode institute.In addition, welding electrode vibration causes conducting electricity in the welding process destabilizing factors such as loose contact, wire feed rate shakiness easily, is unfavorable for that welding process is stable to continue to carry out.These characteristics has limited further developing of ultrasonic and arc welding complex method.Therefore, further increasing the electric arc shrinkage degree, improving arc energy density aspect and improving welding process stability aspect needs new welder to realize.
(3) summary of the invention
The object of the present invention is to provide a kind of ultrasonic wave focusing acoustic field and compound welder of melt pole electrical arc welding that improves ultrasonic energy density, change arc shape and energy density, the efficient high-quality welding of realization.
The object of the present invention is achieved like this: it is by the consumable electrode welding wire, conducting rod, ultrasonic transducer, the axis through-hole ultrasonic variable amplitude bar, welding tip, focusing surface, welding arc, welded piece, the source of welding current and ultrasonic-frequency power supply are formed, the consumable electrode welding wire passes conducting rod and keeps the sliding-contact state with it, the conducting rod that surrounds the consumable electrode welding wire passes the axis through-hole of ultrasonic transducer and ultrasonic variable amplitude bar, the end of consumable electrode welding wire is in the ultrasonic wave communication space of focusing surface institute radiation, the diameter of axis through-hole is greater than the diameter of conducting rod, make not produce between conducting rod and ultrasonic transducer and the ultrasonic variable amplitude bar and contact, ultrasonic power is connected by between cable and the ultrasonic transducer, be connected by bolt between ultrasonic transducer and the ultrasonic variable amplitude bar, closely contact between the lower surface that makes ultrasonic transducer and the upper surface of ultrasonic variable amplitude bar, focusing surface is positioned at the bottom of ultrasonic variable amplitude bar, and the source of welding current connects conducting rod and welded piece by cable.
Ultrasonic wave focusing acoustic field of the present invention and the compound welder of melt pole electrical arc welding produce and the amplification ultrasonic vibration by ultrasonic transducer and luffing bar, utilize the focusing surface realization ultrasonic wave radiation of the special shape of luffing rod end surface processing to converge.Further improve through the ultrasonic energy that converges, undertaken by focusing surface radiate supersonic wave and welding arc directly compound, to realize the purpose of raising welding efficiency and welding quality.The present invention not only can make the electric arc compression and raising arc energy density to welding arc generation effect, and the increase weld penetration improves appearance of weld.And, change the interim form of electrode tip deposite metal, the control transient process by the effect that the Energy distribution that changes the ultrasonic wave focusing acoustic field can produce power to the electrode tip molten metal.In the time of in being applied to consumable electrode solder shorts transition standard welding parameter scope, can significantly improve short circuiting transfer frequency, appearance of weld is more even attractive in appearance, and spatter and flue dust reduce, in the characteristics of more giving full play to the short circuiting transfer form aspect plate sheet welding and the all-position welding practical application.When being applied to consumable electrode and welding in the free transition welding variables scope, can increase substantially molten drop and break away from the frequency of welding wire to the welding pool transition, make the welding process stable and uniform, weld penetration increases, and the appearance of weld uniformity, more can bring into play the characteristics that high deposition efficiency of free interim form and efficient high-speed weld.Compare with traditional metal arc welding process, the present invention can change arc shape and heat production characteristics, and the interim form of deposite metal, realizes high efficiency and high quality welding, has enlarged the range of application of arc welding.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
(5) specific embodiment
The invention will be further described for example below in conjunction with accompanying drawing.
Embodiment 1: in conjunction with Fig. 1, a kind of ultrasonic wave focusing acoustic field of the present invention and the compound welder of melt pole electrical arc welding, it is by consumable electrode welding wire (1), conducting rod (2), ultrasonic transducer (3), axis through-hole (4) ultrasonic variable amplitude bar (5), welding tip (6), focusing surface (7), welding arc (8), welded piece (9), the source of welding current (10) and ultrasonic-frequency power supply (11) are formed, consumable electrode welding wire (1) passes conducting rod (2) and keeps the sliding-contact state with it, the conducting rod (2) that surrounds consumable electrode welding wire (1) passes the axis through-hole (4) of ultrasonic transducer (3) and ultrasonic variable amplitude bar (5), the end of consumable electrode welding wire (1) is in the ultrasonic wave communication space of focusing surface (7) institute radiation, the diameter of axis through-hole (4) is greater than the diameter of conducting rod (2), make not produce between conducting rod (2) and ultrasonic transducer (3) and the ultrasonic variable amplitude bar (5) and contact, ultrasonic power (11) is connected by between cable and the ultrasonic transducer (3), be connected by bolt between ultrasonic transducer (3) and the ultrasonic variable amplitude bar (5), closely contact between the lower surface that makes ultrasonic transducer (3) and the upper surface of ultrasonic variable amplitude bar (5), focusing surface (7) is positioned at the bottom of ultrasonic variable amplitude bar (5), and the source of welding current (10) connects conducting rod (2) and welded piece (9) by cable.
Embodiment 2: the present invention produces by ultrasonic transducer and luffing bar and amplifies ultrasonic vibration, utilizes the focusing surface realization ultrasonic wave radiation of the special shape of luffing rod end surface processing to converge.Further improve through the ultrasonic energy that converges, undertaken by focusing surface radiate supersonic wave and welding arc directly compound, to realize the purpose of raising welding efficiency and welding quality.
Major technique step of the present invention is as follows:
(1) supersonic generator links to each other with ultrasonic transducer by electrode, and the superaudible signal of telecommunication is converted into superaudible mechanical oscillation;
(2) ultrasonic transducer closely is connected with ultrasonic variable amplitude bar, and the amplitude of ultrasonic vibration of ultrasonic transducer output is amplified;
(3) end face of ultrasonic variable amplitude bar is processed into focusing surface, converges the energy of ultrasonic radiation;
(4) at the axle center of ultrasonic transducer and ultrasonic variable amplitude bar processing through hole, the welding wire of consumable electrode welding and conducting rod pass this through hole and keep concentric with it.The diameter of the axis through-hole of ultrasonic transducer and luffing bar is greater than the diameter of welding wire and conducting rod, so conducting rod and welding wire itself do not produce or conduct ultrasonic vibration;
(5) the ultrasonic radiation energy is deployed in luffing bar focusing surface end of welding and is produced in the ultrasonic wave focused radiation space by the direct radiation output of the focusing surface of ultrasonic variable amplitude bar;
(6) welding wire is connected with conducting rod, and conducting rod and workpiece are connected the electric output of the source of welding current respectively then;
(7) send into the required protective gas of arc welding by the protection gas jets, protective gas flows out the back from nozzle and covers welding region;
(8) start the source of welding current and supersonic generator, finish focus supersonic-electric arc combined welding process.
The arc welding method that the present invention is suitable for is a melt pole electrical arc welding method, comprises welding (MIG), metal active gas welding (MAG), carbon dioxide gas arc welding (CO
2Weldering);
Focusing surface of the present invention is positioned at the ultrasonic variable amplitude boom end, is shaped as concave surface;
The power of described supersonic generator is 1-5000W, and the supersonic frequency signal of telecommunication frequency of generation is 15-100KHz;
The described supersonic frequency signal of telecommunication is converted into the supersonic frequency mechanical oscillation by ultrasonic transducer, and its vibration frequency is 15-100KHz, and Oscillation Amplitude is 1-20 μ m.
Described ultrasonic variable amplitude bar is connected with ultrasonic transducer, and amplitude of ultrasonic vibration is amplified to 10-150 μ m.
Described ultrasonic transducer and ultrasonic variable amplitude bar have axis through-hole, and through-hole diameter is 1-20mm.
The present invention is all having significantly raising by the direct radiate supersonic wave of focusing surface because the focusing surface face area, acts on the ultrasonic energy of welding arc much larger than the face area of welding wire and conducting rod aspect power and the energy density.Consumable electrode welding wire of the present invention and conducting rod does not produce in welding process, the non-conducting ultrasonic vibration helps that welding process is stable carries out.
Embodiment 3: in conjunction with Fig. 1, the course of work of the present invention is as follows: at first welded piece (8) is fixed on the platform that is welded by anchor clamps.Ultrasonic-frequency power supply (11) links to each other with ultrasonic transducer (3), and ultrasonic power is regulated in the scope of 1-5000W by ultrasonic-frequency power supply (11).It is ultrasonic vibration between the 15-100kHz that the supersonic frequency signal of telecommunication that utilizes ultrasonic transducer (3) that ultrasonic-frequency power supply (11) is produced is converted into frequency, by ultrasonic variable amplitude bar (5) amplitude is amplified to 10-150 μ m then.The focusing surface (7) of ultrasonic variable amplitude bar (5) end converges the ultrasonic radiation energy and directly radiation output, forms the ultrasonic wave focusing acoustic field.Conducting rod (2) and consumable electrode welding wire (1) are sent into by axially extending bore (4), and the end of consumable electrode welding wire (1) is in the ultrasonic wave focusing acoustic field of focusing surface (7) front end.Needed protective gas feeds by the welding tip (6) that is attached on the luffing bar in the welding process, flows out the back and covers welding region, for welding process provides effective protection.Successively start the source of welding current (10) and supersonic generator (11), under suitable welding parameter and ultrasound parameter, carry out welding process.Because the focusing surface face area is much larger than the face area of welding wire and conducting rod, therefore the ultrasonic energy that acts on welding arc by the direct radiation output of focusing surface is all having significantly raising aspect power and the energy density.Gas metal-arc welding is applied through behind the ultrasonic wave that focuses on, and electric arc has bright more apparent compression, and the energy density of electric arc improves; straight and upright property is good, and welding process is stable, goes up at welded piece (8) and finds that weld penetration further improves; appearance of weld is even, and the protection effect is good.In addition, also the deposite metal transition situation to consumable electrode welding wire end improves to some extent, and can control the transition of deposite metal under different ultrasonic energy distribution situations.In the time of in being applied to consumable electrode solder shorts transition standard welding parameter scope, can significantly improve short circuiting transfer frequency, appearance of weld is more even attractive in appearance, and spatter and flue dust reduce, in the characteristics that can more give full play to the short circuiting transfer form aspect plate sheet welding and the all-position welding practical application.When being applied to consumable electrode and welding in the free transition welding variables scope, can increase substantially molten drop and break away from the frequency of welding wire to the welding pool transition, the deposition efficiency of consumable electrode welding wire is improved, the welding process stable and uniform, weld penetration increases, and the appearance of weld uniformity, more can bring into play the characteristics that high deposition efficiency of free interim form and efficient high-speed weld.
Because consumable electrode welding wire (1) and conducting rod (2) itself do not produce or conduct ultrasonic vibration, guaranteed in the welding process that the good and wire feed rate of conduction stablizes, welding process can be carried out continually and steadily, the raising of continuous operation ability.
The present invention has realized converging of ultrasonic radiation energy and finally has been compound in the electric arc welding process by focusing surface, effectively improved form, heat production characteristics and droplet transfer characteristics, enlarged the range of application of melt pole electrical arc welding method as the electric arc of welding heat source.
Claims (2)
1. the compound welder of ultrasonic wave focusing acoustic field and melt pole electrical arc welding, it is by consumable electrode welding wire (1), conducting rod (2), ultrasonic transducer (3), axis through-hole (4), ultrasonic variable amplitude bar (5), welding tip (6), focusing surface (7), welding arc (8), welded piece (9), the source of welding current (10) and ultrasonic-frequency power supply (11) are formed, it is characterized in that: consumable electrode welding wire (1) passes conducting rod (2) and keeps the sliding-contact state with it, the conducting rod (2) that surrounds consumable electrode welding wire (1) passes the axis through-hole (4) of ultrasonic transducer (3) and ultrasonic variable amplitude bar (5), the end of consumable electrode welding wire (1) is in the ultrasonic wave communication space of focusing surface (7) institute radiation, the diameter of axis through-hole (4) is greater than the diameter of conducting rod (2), make not produce between conducting rod (2) and ultrasonic transducer (3) and the ultrasonic variable amplitude bar (5) and contact, ultrasonic power (11) is connected by between cable and the ultrasonic transducer (3), be connected by bolt between ultrasonic transducer (3) and the ultrasonic variable amplitude bar (5), closely contact between the lower surface that makes ultrasonic transducer (3) and the upper surface of ultrasonic variable amplitude bar (5), focusing surface (7) is positioned at the bottom of ultrasonic variable amplitude bar (5), and the source of welding current (10) connects conducting rod (2) and welded piece (9) by cable.
2. a kind of ultrasonic wave focusing acoustic field according to claim 1 and the compound welder of melt pole electrical arc welding, it is characterized in that: described focusing surface (7) is positioned at ultrasonic variable amplitude bar (5) bottom, is shaped as concave surface.
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| CN 201010291292 CN101947696A (en) | 2010-09-26 | 2010-09-26 | Welding device for compounding ultrasonic focusing sound field with molten pole arc welding |
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| CN 201010291292 CN101947696A (en) | 2010-09-26 | 2010-09-26 | Welding device for compounding ultrasonic focusing sound field with molten pole arc welding |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102699545A (en) * | 2012-05-31 | 2012-10-03 | 中国核工业二三建设有限公司 | Method for welding cut surface butt joint formed by thin welding base materials |
| CN102814580A (en) * | 2012-08-13 | 2012-12-12 | 江苏大学 | Ultrasound arc welding method for ODS (Oxide Dispersion Strengthened) alloys |
| CN103192186A (en) * | 2013-04-24 | 2013-07-10 | 哈尔滨工业大学 | Focusing sound field and electric-arc welding composite welding device |
| CN103212914A (en) * | 2013-05-13 | 2013-07-24 | 哈尔滨工业大学（威海） | External sound field type titanium-alloy manual welding device and welding method |
| CN104607810A (en) * | 2014-12-15 | 2015-05-13 | 赵辉 | Ultrasonic consumable electrode argon arc welding process and device |
| CN104759740A (en) * | 2015-04-07 | 2015-07-08 | 西南石油大学 | Device and method for welding high steel grade and large wall thickness pipeline steel |
| CN105149747A (en) * | 2015-10-09 | 2015-12-16 | 哈尔滨工业大学（威海） | Ultrasonic-assisted and gas-shielded welding device and method adopting underwater wet method |
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Cited By (18)
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| CN102699545B (en) * | 2012-05-31 | 2015-11-25 | 中国核工业二三建设有限公司 | Weld the method for the tangent plane banjo fixing butt jointing of thin welding base metal |
| CN102699545A (en) * | 2012-05-31 | 2012-10-03 | 中国核工业二三建设有限公司 | Method for welding cut surface butt joint formed by thin welding base materials |
| CN102814580A (en) * | 2012-08-13 | 2012-12-12 | 江苏大学 | Ultrasound arc welding method for ODS (Oxide Dispersion Strengthened) alloys |
| CN102814580B (en) * | 2012-08-13 | 2015-04-22 | 江苏大学 | Ultrasound arc welding method for ODS (Oxide Dispersion Strengthened) alloys |
| CN103192186A (en) * | 2013-04-24 | 2013-07-10 | 哈尔滨工业大学 | Focusing sound field and electric-arc welding composite welding device |
| CN103212914A (en) * | 2013-05-13 | 2013-07-24 | 哈尔滨工业大学（威海） | External sound field type titanium-alloy manual welding device and welding method |
| CN103212914B (en) * | 2013-05-13 | 2016-04-06 | 哈尔滨工业大学（威海） | A kind of additional sound field formula titanium alloy Manual welding device and welding method |
| CN104607810A (en) * | 2014-12-15 | 2015-05-13 | 赵辉 | Ultrasonic consumable electrode argon arc welding process and device |
| CN104741805B (en) * | 2015-03-18 | 2016-11-09 | 哈尔滨工业大学 | A kind of Aluminium Alloy with Pulsed ultrasonic electric arc composite welding apparatus and welding method thereof |
| CN104759740A (en) * | 2015-04-07 | 2015-07-08 | 西南石油大学 | Device and method for welding high steel grade and large wall thickness pipeline steel |
| CN105149747A (en) * | 2015-10-09 | 2015-12-16 | 哈尔滨工业大学（威海） | Ultrasonic-assisted and gas-shielded welding device and method adopting underwater wet method |
| CN105149747B (en) * | 2015-10-09 | 2017-07-21 | 哈尔滨工业大学（威海） | Wet gas protects welder and method to a kind of ultrasonic wave added under water |
| CN109058456A (en) * | 2018-07-10 | 2018-12-21 | 哈尔滨工业大学 | The instantaneous opening device of melt liquid in high temperature and high pressure containers |
| CN109926710A (en) * | 2019-04-25 | 2019-06-25 | 山东大学 | A kind of back penetrates and the Friction Stir Welding device of Ultrasonic probe support auxiliary |
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| CN114905117B (en) * | 2022-05-23 | 2024-02-06 | 五邑大学 | Arc additive apparatus, method and storage medium |
| CN115121909A (en) * | 2022-06-08 | 2022-09-30 | 五邑大学 | Arc additive manufacturing apparatus, control method of arc additive manufacturing apparatus, and storage medium |
| CN115121909B (en) * | 2022-06-08 | 2024-01-02 | 五邑大学 | Arc additive apparatus, control method of arc additive apparatus, and storage medium |
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Application publication date: 20110119 |