CN105127595B - Thick plate laser-double-sided arc hybrid welding method - Google Patents
Thick plate laser-double-sided arc hybrid welding method Download PDFInfo
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- CN105127595B CN105127595B CN201510660518.2A CN201510660518A CN105127595B CN 105127595 B CN105127595 B CN 105127595B CN 201510660518 A CN201510660518 A CN 201510660518A CN 105127595 B CN105127595 B CN 105127595B
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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Abstract
The invention provides a thick plate laser-double-sided arc hybrid welding method, which solves the problems of the existing welding method that when a thick plate is welded, the welding seam root defect exists, the laser energy utilization rate is low, the operation is complex and time-consuming, the equipment cost is high, and the like. The method comprises the following steps: step one, according to the type of a welding joint, a groove is processed at a part to be welded; fixing the workpiece and cleaning the groove; arranging a laser beam and a first welding gun on one side of the joint, wherein a first included angle of 30-45 degrees is formed between the optical axis of the laser beam and the central axis of the first welding gun; a preset distance is reserved between the incident point of the laser beam and the tail end of the welding wire of the welding gun; a second welding gun is arranged on the other side of the joint in a mirror image mode; step four, forming a double-sided through molten pool on the joint in the welding process through energy matching; the arc plasma generated by the first torch is brought into contact with the photo-generated plasma generated by the laser beam, thereby diluting the photo-generated plasma.
Description
Technical Field
The invention relates to the technical field of laser processing, in particular to a laser-electric arc hybrid welding method for a large thick plate.
Background
In the field of welding, a plate with a thickness of less than 4mm is generally called a thin plate, a plate with a thickness of 4mm to 12mm is generally called a medium plate, and a plate with a thickness of more than 12mm is generally called a thick plate.
The laser-arc hybrid welding combines the advantages of laser welding and arc welding, has the characteristics of large fusion depth, high welding speed, wide gap adaptability, small welding deformation and the like, and shows unique superiority in medium and thick plate welding.
The currently known laser-arc hybrid welding methods include:
1. conventional laser-arc hybrid welding method
The laser-arc composite processing method is shown in figure 1, and for a butt joint, a laser heat source 1 and an arc heat source 2 form a composite heat source for welding at the same side of a workpiece 3 to be welded. The method has obvious advantages when welding medium and thick plates and is widely applied. However, this method has a drawback that, as shown in fig. 2, when a thick plate is welded, cracks C and pores P are easily formed at the root of the weld because the weld pool is small and the aspect ratio of the weld W is large, the cooling rate of the weld is high. In addition, the method is single-side welding, and has the problem of welding stress deformation.
As shown in fig. 3, the T-joint also has a problem that cracks and air hole defects are likely to be formed at the root of the weld, and welding stress deformation occurs.
2. Laser-arc hybrid welding method
As shown in FIG. 4, for the butt joint, the method is to combine a laser heat source 4 and an electric arc heat source 5 in a composite heat source welding mode, wherein the laser heat source and the electric arc heat source are arranged on two sides of a workpiece 6 to be welded. Although the method is double-sided symmetrical welding, the welding stress deformation is reduced, the electric arc provides a preheating effect for the laser, the laser energy is favorably absorbed by a workpiece, and the stability of the electric arc is improved by a local high-temperature area formed by the laser. However, during welding, a high-temperature, high-density photo-plasma (plasma formed by the interaction of the laser with the workpiece) is formed primarily on one side of the workpiece to be welded, while a lower-temperature and lower-density arc plasma is formed on the other side of the workpiece, i.e., the photo-plasma and arc plasma are separated by the workpiece. The arc plasma can not contact with the photoinduced plasma, so that the function of diluting the photoinduced plasma can not be achieved, the compact photoinduced plasma has the functions of absorbing and scattering incident laser, the energy transmission efficiency of the laser is influenced, the energy density of the laser reaching a workpiece is greatly reduced, and the weld penetration is shallow. Meanwhile, the light-induced plasma cannot effectively attract and compress the electric arc, and cannot play a role in further improving the stability of the electric arc.
This method also has the problem that the photo plasma and arc plasma are separated by the workpiece for a T-joint, as shown in fig. 5. In addition, as the difference between laser and arc heat input is large, as shown in fig. 6, the welding seams at two sides are asymmetric, and the welding stress deformation is large.
3. A laser-double-arc different-side composite welding method is shown in FIG. 7, and is characterized in that a laser heat source 7 is arranged on one side of a workpiece panel 91 to be welded, and two arc heat sources 81 and 82 are arranged on the other side of the workpiece panel 91 to be welded and distributed on two sides of a workpiece vertical plate 92 to be welded in a mirror image mode to form composite heat source welding. The method is similar to a laser-arc hybrid welding method, and the light-induced plasma and the arc plasma are separated by a workpiece, so that the advantage of mutual coupling of a laser heat source and an arc heat source cannot be effectively utilized. Moreover, the method aims at the thin plate welding, as shown in fig. 8, the fusion depth of the electric arcs on two sides of the vertical plate 92 of the workpiece to be welded is shallow, and the method is not suitable for thick plate welding.
4. Double-sided laser-arc hybrid welding method
For a T-shaped joint, as shown in fig. 9, the method involves two laser heat sources and two arc heat sources, above a panel 121 of a workpiece to be welded, one of the laser heat sources 10 and one of the arc heat sources 11 forms a set of laser-arc composite heat source on one side of a vertical plate 122 of the workpiece to be welded, while the other set of laser-arc composite heat source is distributed on the other side of the vertical plate 122 of the workpiece to be welded in a mirror image manner, and the two sets of laser-arc composite heat sources are welded synchronously. The method is double-sided symmetrical welding, reduces welding stress deformation, effectively utilizes the advantage of laser and electric arc coupling, and the cross section schematic diagram of the joint is shown in figure 10. However, the method involves two lasers, which has high requirements on equipment cost, and the laser beams on the two sides are strictly centered to maintain the mutual communication of the two laser keyhole generated by the laser beams on the two sides, so as to form a molten pool and realize welding, which greatly limits the application and popularization of the method.
As shown in fig. 11, the butt joint also has a problem that the equipment cost is high and strict alignment is required.
In summary, the laser-arc hybrid welding method has obvious advantages when welding thin and medium plates, but has respective problems in different degrees when welding thick plates, which limits the application and popularization of the laser-arc hybrid welding method in the welding of thick-wall components, so that the development of a novel laser-arc hybrid welding method is urgently needed from the viewpoints of welding quality, laser energy utilization rate and cost.
Disclosure of Invention
The invention aims to provide a thick plate laser-double-sided arc hybrid welding method, which solves the problems of crack and air hole defects at the root of a welding seam, large welding stress deformation, low laser energy utilization rate, complex and time-consuming operation, high equipment cost and the like when the existing laser-arc hybrid welding method is used for welding a thick plate.
In order to achieve the above object, the present invention provides a thick plate laser-double-sided arc hybrid welding method, comprising:
step one, according to the type of a welding joint, machining a groove at a part to be welded of a thick plate workpiece:
fixing the thick plate workpiece and cleaning the part to be welded and the groove;
arranging a laser beam and a first welding gun on one side of the welding joint, wherein a first included angle of 30-45 degrees is formed between the optical axis of the laser beam and the central axis of the first welding gun; the incident point of the laser beam on the part to be welded and the tail end of the welding wire of the first welding gun are spaced in a preset mode; arranging a second welding gun on the other side of the welding joint in a mirror image mode relative to the first welding gun;
step four, forming a double-sided through molten pool on the welding joint in the welding process through energy matching; during welding, the arc plasma generated by the first torch contacts the photo-generated plasma generated by the laser beam, thereby diluting the photo-generated plasma.
Preferably, in the above method, the predetermined pitch is 1mm to 6 mm.
Preferably, in the above-mentioned method,
the welding joint is in a T-shaped joint, the T-shaped joint is provided with a horizontal panel and a joint vertical plate, and the first welding gun and the second welding gun are arranged on two sides of the joint vertical plate in a mirror image manner;
the optical axis and the central axis are positioned in the same plane;
a second included angle of 5-40 degrees is formed between the optical axis and the horizontal panel;
the central axis and the horizontal panel form a third included angle of 5-40 degrees;
the second included angle is equal to the third included angle.
Preferably, in the above method, the welded joint is in the form of a butt joint;
the optical axis of the laser beam is perpendicular to a horizontal surface of the thick plate workpiece.
Preferably, in the above method, in the second step, the washing is performed using alcohol.
Preferably, in the above method, the energy matching includes: and setting laser power, arc current, welding speed, gas flow of an arc welding gun and the diameter of a welding wire according to the thickness of the thick plate workpiece.
Preferably, upperIn the method, the laser generating the laser beam is CO2A laser, a YAG laser, or a fiber laser;
the welding gun adopts consumable electrode active gas shielded welding or consumable electrode inert gas shielded welding.
Preferably, in the above method, the joint vertical plate is provided with a K-shaped groove, a truncated edge d1 of the K-shaped groove is 8mm to 30mm, the groove angle θ is 10 ° to 20 °, and a welding gap L1 between the joint vertical plate and the horizontal panel is 0.5mm to 1.5 mm.
Preferably, in the method, the groove of the butt joint is a double-Y-shaped groove, the truncated edge d2 is 10mm to 35mm, the groove angle phi is 10 to 30 degrees, and the welding gap L2 is 0.3mm to 1 mm.
Preferably, in the above method, the thickness of the thick plate workpiece is greater than 12 mm.
The embodiment of the invention has the following technical effects:
in the embodiment of the invention, the first welding gun and the laser beam are combined and arranged on one side of the joint, so that the arc plasma can dilute the light-induced plasma, and the combination advantage is achieved; the second welding gun is arranged on the other side of the joint in a mirror image mode, and the three heat sources are mutually coupled and act together to form a molten pool, so that the advantages of good flowing performance caused by electric arcs on two sides, contribution to overflow of air holes on the root part, uniform distribution of alloy elements and the like are achieved; and only one laser heat source is adopted, so that the problem that laser beams on two sides need to be strictly centered is avoided, the operation difficulty is simplified while all combination advantages are kept, and the cost is saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of a conventional laser-arc hybrid welding of a butt joint;
FIG. 2 is a schematic view of a conventional laser-arc hybrid welding seam root crack and porosity defect;
FIG. 3 is a schematic view of a conventional laser-arc hybrid welding of T-joints;
FIG. 4 is a schematic view of laser-arc hybrid welding of a butt joint;
FIG. 5 is a schematic view of laser-arc hybrid welding of a T-joint;
FIG. 6 is a cross-sectional view of a laser-arc hybrid welded T-joint;
FIG. 7 is a schematic view of laser-double arc hybrid welding of T-shaped joints;
FIG. 8 is a cross-sectional view of a laser-dual arc hybrid welding T-joint;
FIG. 9 is a schematic view of a laser-arc hybrid welding of two sides of a T-joint;
FIG. 10 is a schematic cross-sectional view of a double-sided laser-arc hybrid welded T-joint;
FIG. 11 is a schematic view of a butt joint double-sided laser-arc hybrid welding;
FIG. 12 is a schematic view of laser-double-sided arc hybrid welding of a T-joint;
FIG. 13 is a schematic view of a butt joint laser-double side arc hybrid weld;
FIG. 14 is a schematic cross-sectional view of a laser-double-sided arc hybrid welded T-joint;
FIG. 15 is a schematic cross-sectional view of a laser-double-sided arc hybrid welded butt joint;
FIG. 16 is a schematic diagram of a groove of a laser-double-sided arc hybrid welding T-joint;
FIG. 17 is a schematic view of a groove of a butt joint in laser-double arc hybrid welding;
fig. 18 is a flow chart of a laser-double-sided arc hybrid welding method.
Detailed Description
Fig. 18 is a flowchart of a laser-double-sided arc hybrid welding method, and as shown in fig. 18, an embodiment of the present invention provides a thick plate laser-double-sided arc hybrid welding method, including:
In the embodiment of the invention, the first welding gun and the laser beam are combined and arranged on one side of the joint, so that the arc plasma can dilute the light-induced plasma, and the combined advantages are achieved; the second welding gun is arranged on the other side of the joint in a mirror image mode, and the three heat sources are mutually coupled and act together to form a molten pool, so that the advantages of good flowing performance caused by electric arcs on two sides, contribution to overflow of air holes on the root part, uniform distribution of alloy elements and the like are achieved; and only one laser heat source is adopted, so that the problem that laser beams on two sides need to be strictly centered is avoided, the operation difficulty is simplified while all combination advantages are kept, and the cost is saved.
In the embodiment of the invention, the optical axis of the laser beam and the central axis of the first welding gun form a first included angle (such as beta in figure 12) of 30-45 degrees, and the preset distance between the incidence point of the laser beam and the tail end of the welding wire is 1-6 mm, so that the arrangement is more favorable for diluting the light-induced plasma and is more favorable for the fluidity of a molten pool.
In one embodiment of the invention, the welding joint is in a T-shaped joint, the T-shaped joint is provided with a horizontal panel and a joint vertical plate, and the first welding gun and the second welding gun are arranged on two sides of the joint vertical plate in a mirror image manner; the optical axis and the central axis are positioned in the same plane; a second included angle of 5-40 degrees is formed between the optical axis and the horizontal panel; the central axis and the horizontal panel form a third included angle of 5-40 degrees; the second angle is equal to the third angle (α in fig. 12).
Referring specifically to fig. 12, for the T-joint, on the joint side, the optical axis of the laser beam 13 and the central axis of the welding gun 141 (first welding gun) are located in the same plane and both form an included angle α of 5 ° to 40 ° with the panel 151 of the T-joint, an included angle β of 30 ° to 45 ° is formed between the optical axis of the laser beam 13 and the central axis of the welding gun 141, and a distance D1 between an incident point of the laser beam 13 on a portion to be welded and the end of the welding wire of the welding gun 141 is 1mm to 6 mm; and welding torch 142 (second welding torch) is arranged on the other side of the T-shaped joint in a mirror image manner with respect to welding torch 141 (first welding torch), and the welding direction is the positive x-axis direction.
In another embodiment of the invention, the weld joint is in the form of a butt joint; the optical axis of the laser beam is perpendicular to a horizontal surface of the thick plate workpiece.
Referring specifically to fig. 13, for a butt joint, the laser beam 16 is perpendicular to the workpiece 18 to be welded, an angle γ of 30 ° to 45 ° is formed between the optical axis of the laser beam 16 and the central axis of the welding gun 171 (first welding gun), and a distance D2 between the incident point of the laser beam 16 on the portion to be welded and the end of the wire of the welding gun 171 is 1mm to 6 mm. And welding gun 172 (second welding gun) is arranged on the other side of workpiece 18 to be welded in a mirror image manner with respect to welding gun 171, and the welding direction is the positive x-axis direction.
The cross section schematic diagrams of the T-shaped joint and the butt joint are respectively shown in fig. 14 and fig. 15, and it can be seen from the diagrams that the invention adopts a double-sided welding form, three heat sources are mutually coupled and jointly act on a workpiece to be welded to form a double-sided through molten pool, and the molten pool flows more fully.
The laser types related to the embodiment of the invention can be as follows: CO 22A laser, a YAG laser, or a fiber laser; the arc involved may be a metal arc welding or a metal arc welding.
The thickness of the thick plate workpiece is larger than 12 mm. According to the embodiment of the invention, according to different thicknesses of workpieces to be welded, the laser power is 10 kW-40 kW, the arc current is 100A-500A, the welding speed is 1 m/min-3 m/min, the gas flow of an arc welding gun is 151/min-351/min, and the diameter of a welding wire is 1 mm-2 mm.
According to the embodiment of the invention, the arc welding gun protective gas can be high-purity He gas, high-purity Ar gas and CO according to different components of materials to be welded2Ar gas and CO2Mixed gas (CO)2The proportion of gas is 5-20%).
As shown in fig. 16, in the embodiment of the present invention, the groove is processed according to the type of the welded joint, and for the T-joint, the joint vertical plate is provided with a K-shaped groove, the truncated edge d1 is 8mm to 30mm, the groove angle θ is 10 ° to 20 °, and the welding gap L1 between the vertical plate and the face plate is 0.5mm to 1.5 mm.
As shown in FIG. 17, the groove of the butt joint is a double Y-shaped groove, the truncated edge d2 is 10mm to 35mm, the groove angle φ is 10 to 30 °, and the weld gap L2 is 0.3mm to 1 mm.
The invention relates to a welding method, which relates to a laser heat source and two electric arc heat sources, adopts a laser-double-sided electric arc hybrid welding technology aiming at thick-wall components such as ships, vehicles, large storage tanks and wind power plants, and solves the problems of crack and air hole defects at the root of a welding seam, large welding stress deformation, low laser energy utilization rate, high equipment cost and the like when the thick plate is welded by the conventional laser-electric arc hybrid welding method.
The specific steps of the welding method are as follows:
the method comprises the following steps: processing a groove on a part to be welded of a workpiece according to a welding joint type;
step two: cleaning the part to be welded of the workpiece and the groove with alcohol, and fixing the part to be welded of the workpiece and the groove on a tool clamp;
step three: according to a feature of the method, the relative positions of the laser beam, the arc welding gun and the workpiece are maintained;
step four: setting technological parameters such as laser power, arc current, welding speed, gas flow of an arc welding gun and the like according to the thickness of a material to be welded, and selecting the diameter of a welding wire;
step five: selecting the type of protective gas according to the components of the material to be welded;
step six: and (4) turning on a laser and an arc power supply, starting the laser-double-sided arc hybrid welding system, and performing welding.
From the above, the present invention has the following advantages:
1) the implementation effect of the invention is different from the laser-electric arc composite processing method in that: the method only relates to a laser heat source and an electric arc heat source, and aims to solve the problems of large laser energy loss, electric arc drift and expansion. In the invention, one laser heat source and two electric arc heat sources jointly act on the workpiece to be welded and are mutually coupled, and the energy matching of the three heat sources needs to be controlled to form a double-sided through molten pool. Therefore, the invention is not only a simple mirror image of the method, but the flow behavior of the molten pool formed by the mutual coupling of three heat sources is different from the method. The electric arc force of electric arcs on two sides and the impact effect of molten drop transition on a molten pool enable the flowing performance of the molten pool to be better, overflow of air holes at the root part and uniform distribution of alloy elements are facilitated, and the performance of a welding joint is improved. Meanwhile, the introduction of electric arcs on two sides reduces the cooling rate of a molten pool and inhibits the formation of cracks. Moreover, the invention adopts double-sided welding, reduces the procedures of carbon arc gouging back gouging, polishing and the like on the back of the welding seam, shortens the working period and improves the welding efficiency. Meanwhile, the welding seams on two sides are cooled and shrunk simultaneously in the double-sided welding, so that the control of stress deformation is facilitated, and the welding quality is improved.
2) The implementation effect of the invention is different from the laser-arc different side composite welding method mentioned in the laser-arc two-side synchronous welding device for the T-shaped joint, in that: the light-induced plasma and the arc plasma in this method are separated by the workpiece, and the composite effect of the laser and the arc cannot be sufficiently exhibited. The interaction between the light-induced plasma and the arc plasma in the invention fully exerts the laser-arc composite effect, and firstly, the arc strengthens the laser: the preheating effect of double-sided electric arc on laser welding, the dilution effect of electric arc on plasma and the blowing effect of electric arc air flow on laser welding metal steam are shown; secondly, the laser can stabilize the electric arc: in that the laser acts to direct the arc and the laser acts to compress the arc. In addition, the plasma formed by the laser acting on the workpiece has a heat radiation effect.
3) The implementation effect of the invention is different from the laser-double-arc double-sided composite welding method of the T-shaped joint, namely the method aims at the welding of the T-shaped joint of the thin plate and solves the problem of strict requirement on the assembly clearance of the T-shaped joint of the thin plate. Although one laser heat source and two arc heat sources are used for welding synchronously and share one molten pool, the light-induced plasma and the arc plasma are separated by the workpiece and cannot interact with each other. The interaction between the light-induced plasma and the arc plasma in the invention fully exerts the laser-arc composite effect and is more suitable for the welding of thick plates.
4) The implementation effect of the invention is similar to the double-sided laser-electric arc hybrid welding method of the thick plate T-shaped joint, the middle part of the joint is mainly formed by the action of laser, and the two sides of the joint are mainly formed by the action of electric arc. However, this method involves two lasers, which not only requires high equipment cost, but also requires strict alignment of the laser beams on both sides. The laser beam centering device only relates to one laser, so that the equipment cost is reduced, and the problem of laser beam centering does not exist.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A thick plate laser-double-sided arc hybrid welding method is characterized by comprising the following steps:
step one, according to the type of a welding joint, a groove is processed on a part to be welded of a thick plate workpiece;
fixing the thick plate workpiece and cleaning the part to be welded and the groove;
arranging a laser beam and a first welding gun on one side of the welding joint, wherein a first included angle of 30-45 degrees is formed between the optical axis of the laser beam and the central axis of the first welding gun; the incident point of the laser beam on the part to be welded and the tail end of the welding wire of the first welding gun are spaced in a preset mode; arranging a second welding gun on the other side of the welding joint in a mirror image mode relative to the first welding gun;
step four, forming a double-sided through molten pool on the welding joint in the welding process through energy matching; during welding, the arc plasma generated by the first torch contacts the photo-generated plasma generated by the laser beam, thereby diluting the photo-generated plasma.
2. The method of claim 1, wherein the predetermined pitch is 1mm to 6 mm.
3. The method of claim 2,
the welding joint is in a T-shaped joint, the T-shaped joint is provided with a horizontal panel and a joint vertical plate, and the first welding gun and the second welding gun are arranged on two sides of the joint vertical plate in a mirror image manner;
the optical axis and the central axis are positioned in the same plane;
a second included angle of 5-40 degrees is formed between the optical axis and the horizontal panel;
the central axis and the horizontal panel form a third included angle of 5-40 degrees;
the second included angle is equal to the third included angle.
4. The method of claim 2,
the welding joint is in a butt joint type;
the optical axis of the laser beam is perpendicular to a horizontal surface of the thick plate workpiece.
5. The method according to claim 3 or 4, wherein in step two, the cleaning is performed using alcohol.
6. The method of claim 5, wherein the energy matching comprises: and setting laser power, arc current, welding speed, gas flow of an arc welding gun and the diameter of a welding wire according to the thickness of the thick plate workpiece.
7. The method of claim 5,
the laser generating the laser beam is CO2A laser, a YAG laser, or a fiber laser;
the welding gun adopts consumable electrode active gas shielded welding or consumable electrode inert gas shielded welding.
8. The method according to claim 3, wherein the joint vertical plate is provided with a K-shaped groove, the truncated edge d1 of the K-shaped groove is 8 mm-30 mm, the groove angle theta is 10-20 degrees, and the welding gap L1 between the joint vertical plate and the horizontal panel is 0.5 mm-1.5 mm.
9. The method of claim 4, wherein the bevel of the butt joint is a double Y-shaped bevel, the truncated edge d2 is 10mm to 35mm, the bevel angle phi is 10 ° to 30 °, and the weld gap L2 is 0.3mm to 1 mm.
10. The method of claim 1, wherein the thick plate workpiece has a thickness greater than 12 mm.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169491A (en) * | 1989-11-30 | 1991-07-23 | Daihen Corp | Laser beam cutting machine |
| JP2007000920A (en) * | 2005-06-27 | 2007-01-11 | Nippon Steel Corp | Method for controlling laser arc composite welding |
| CN201769010U (en) * | 2010-08-18 | 2011-03-23 | 武汉钢铁(集团)公司 | Combined laser processing device |
| CN102126088A (en) * | 2011-01-13 | 2011-07-20 | 哈尔滨工业大学 | Double-sided laser arc composite welding method for thick plate T-joint |
| CN102225494A (en) * | 2011-06-07 | 2011-10-26 | 上海交通大学 | Laser-arc hybrid welding double-wide narrow-groove welding method |
-
2015
- 2015-10-15 CN CN201510660518.2A patent/CN105127595B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169491A (en) * | 1989-11-30 | 1991-07-23 | Daihen Corp | Laser beam cutting machine |
| JP2007000920A (en) * | 2005-06-27 | 2007-01-11 | Nippon Steel Corp | Method for controlling laser arc composite welding |
| CN201769010U (en) * | 2010-08-18 | 2011-03-23 | 武汉钢铁(集团)公司 | Combined laser processing device |
| CN102126088A (en) * | 2011-01-13 | 2011-07-20 | 哈尔滨工业大学 | Double-sided laser arc composite welding method for thick plate T-joint |
| CN102225494A (en) * | 2011-06-07 | 2011-10-26 | 上海交通大学 | Laser-arc hybrid welding double-wide narrow-groove welding method |
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