CN111151844A - MIG and TIG synchronous welding process for automatic spiral weld joint on outer surface of aluminum alloy spiral welded pipe - Google Patents

MIG and TIG synchronous welding process for automatic spiral weld joint on outer surface of aluminum alloy spiral welded pipe Download PDF

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Publication number
CN111151844A
CN111151844A CN201911384771.4A CN201911384771A CN111151844A CN 111151844 A CN111151844 A CN 111151844A CN 201911384771 A CN201911384771 A CN 201911384771A CN 111151844 A CN111151844 A CN 111151844A
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China
Prior art keywords
welding
spiral
aluminum alloy
mig
tig
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CN201911384771.4A
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Chinese (zh)
Inventor
邓小冬
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Jiangsu Henggao Electric Manufacturing Co ltd
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Jiangsu Henggao Electric Manufacturing Co ltd
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Priority to CN201911384771.4A priority Critical patent/CN111151844A/en
Publication of CN111151844A publication Critical patent/CN111151844A/en
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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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
    • B23K9/0325—Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses a MIG and TIG synchronous welding process for an automatic spiral weld on the outer surface of an aluminum alloy spiral welded pipe, and relates to the field of spiral welded pipe welding. The invention comprises a spiral seam on the outer surface of the pipe body, an MIG welding gun and a TIG welding gun. The MIG welding gun and the TIG welding gun are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine according to the designed distance, and the front and rear suitable positions are aligned with the inner seam to weld the outer surface of the aluminum alloy spiral welded pipe to be welded with the spiral welding seam. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance. And (4) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting MIG welding double pulses. The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the time of design due to the fact that the temperature requirement is calculated, a TIG welding gun works, and meanwhile 100% carbon dioxide protective gas is filled in to perform forming welding on the outer surface of the aluminum alloy spiral welded pipe.

Description

MIG and TIG synchronous welding process for automatic spiral weld joint on outer surface of aluminum alloy spiral welded pipe
Technical Field
The invention relates to the technical field of spiral welded pipe welding, in particular to a MIG and TIG synchronous welding process for an automatic spiral weld joint on the outer surface of an aluminum alloy spiral welded pipe
Background
In a traditional manual welding process, the steps are mainly as follows:
the first step is as follows: first, MIG welding is carried out for priming;
the second step is that: then TIG welding surface forming is carried out;
the traditional process has low efficiency, large occupied space of equipment, more labor time and high cost. Is not suitable for the automatic production of the spiral welded pipe production line. Therefore, the MIG and TIG synchronous welding process for the spiral weld seam on the outer surface of the automatic aluminum alloy spiral welded pipe is provided
Disclosure of Invention
The invention aims to provide a MIG and TIG synchronous welding process for an automatic spiral weld on the outer surface of an aluminum alloy spiral welded pipe, which aims to solve the problems in the background technology.
The invention relates to a MIG and TIG synchronous welding process for an automatic spiral weld joint on the outer surface of an aluminum alloy spiral welded pipe, which comprises a spiral weld joint on the outer surface of a pipe body, an MIG welding gun and a TIG welding gun, and is characterized in that: the method comprises the following steps:
the method comprises the following steps: the MIG welding gun and the TIG welding gun are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine according to the designed distance, and the front and rear proper positions are aligned with the inner seam to weld the outer surface of the aluminum alloy spiral welded pipe to be welded with the spiral welding seam. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance.
Step two: and (4) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting MIG welding double pulses. The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the time of design due to the fact that the temperature requirement is calculated, a TIG welding gun works, and meanwhile 100% carbon dioxide protective gas is filled in to perform forming welding on the outer surface of the aluminum alloy spiral welded pipe.
Preferably, the thickness of the plate for forming the aluminum alloy spiral welded pipe is 5-20 mm.
Preferably, the opening angle of the V-shaped groove is controlled to be 63-70 degrees according to the thickness of the plate.
Preferably, the specific process parameters are as follows:
welding process Welding current Voltage of
Synchronous welding 180-240A 18-25V
The invention has the following beneficial effects:
1. the processing time is reduced on the basis of ensuring the welding quality, the production efficiency is improved, the space occupied by equipment is reduced, the labor is reduced, the cost is reduced, and the method is suitable for the progress of automatic production of a spiral welded pipe production line;
2. in the process, two guns of the welding machine are used for synchronously welding, the condensation time of a molten pool is prolonged by 3-6 seconds, and the overflow of air holes is facilitated, so that the appearance of the welding machine is more attractive.
3. The welding quality of the product can be fully ensured by adopting a synchronous automatic welding mode.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a spiral weld V-shaped port
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a MIG, TIG synchronous welding technology for automizing aluminum alloy spiral welded pipe surface spiral welding seam, includes body surface spiral seam 1, MIG welder 2, TIG welder 3, its characterized in that: the method comprises the following steps:
the method comprises the following steps: the MIG welding gun 2 and the TIG welding gun 3 are combined together according to the designed distance and are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine, and the front and rear suitable positions are aligned with the inner seam to finish the welding of the spiral welding line 1 on the outer surface of the aluminum alloy spiral welded pipe. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance.
Step two: and (3) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting 2 double pulses of MIG welding. The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the time of design due to the fact that the temperature requirement is calculated, a TIG welding gun 3 works, 100% carbon dioxide protective gas is filled simultaneously, and forming welding of a welding seam 1 on the outer surface of the aluminum alloy spiral welded pipe is conducted. The specific parameters are as follows:
welding process Welding current Voltage of
Synchronous welding 180A 18V
As a further optimization of the invention, the thickness of the cylinder is 5 mm.
As a further optimization of the invention, the opening angle of the V-shaped outer groove in the first step is 63 degrees.
Example two:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a MIG, TIG synchronous welding technology for automizing aluminum alloy spiral welded pipe surface spiral welding seam, includes body surface spiral seam 1, MIG welder 2, TIG welder 3, its characterized in that: the method comprises the following steps:
the method comprises the following steps: the MIG welding gun 2 and the TIG welding gun 3 are combined together according to the designed distance and are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine, and the front and rear suitable positions are aligned with the inner seam to finish the welding of the spiral welding line 1 on the outer surface of the aluminum alloy spiral welded pipe. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance.
Step two: and (3) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting 2 double pulses of MIG welding. The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the time of design due to the fact that the temperature requirement is calculated, a TIG welding gun 3 works, 100% carbon dioxide protective gas is filled simultaneously, and forming welding of a welding seam 1 on the outer surface of the aluminum alloy spiral welded pipe is conducted. The specific parameters are as follows:
Figure BDA0002343271620000041
Figure BDA0002343271620000051
as a further optimization of the invention, the thickness of the cylinder is 12 mm.
As a further optimization of the present invention, the opening angle of the "V" shaped outer groove in the first step is 66 °.
Example three:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a MIG, TIG synchronous welding technology for automizing aluminum alloy spiral welded pipe surface spiral welding seam, includes body surface spiral seam 1, MIG welder 2, TIG welder 3, its characterized in that: the method comprises the following steps:
the method comprises the following steps: the MIG welding gun 2 and the TIG welding gun 3 are combined together according to the designed distance and are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine, and the front and rear suitable positions are aligned with the inner seam to finish the welding of the spiral welding line 1 on the outer surface of the aluminum alloy spiral welded pipe. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance.
Step two: and (3) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting 2 double pulses of MIG welding. The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the time of design due to the fact that the temperature requirement is calculated, a TIG welding gun 3 works, 100% carbon dioxide protective gas is filled simultaneously, and forming welding of a welding seam 1 on the outer surface of the aluminum alloy spiral welded pipe is conducted. The specific parameters are as follows:
welding process Welding current Voltage of
Synchronous welding 240A 24V
As a further optimization of the invention, the thickness of the cylinder is 20 mm.
As a further optimization of the present invention, the opening angle of the "V" shaped outer groove in the first step is 70 °. According to the three embodiments, the processing time can be effectively reduced by adopting the mode of synchronously welding MIG (metal-inert gas) welding and TIG (tungsten-inert gas) welding, wherein the two guns of the welding machine are synchronously welded, the condensation time of a molten pool is prolonged by 3-6 seconds, the overflow of air holes is facilitated, and the appearance is more attractive.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a MIG, TIG synchronous welding process for automizing aluminum alloy spiral welded pipe surface spiral welding seam, includes body surface spiral seam (1), MIG welder (2), TIG welder (3), its characterized in that: the method comprises the following steps:
the method comprises the following steps: the MIG welding gun (2) and the TIG welding gun (3) are combined together according to the designed distance and are arranged on a main beam of an automatic aluminum alloy spiral welded pipe forming machine, and the front and rear proper positions are aligned with the inner seam to weld the spiral welding line (1) on the outer surface of the aluminum alloy spiral welded pipe after the inner seam is welded. The joint of the spiral weld joint to be welded on the outer surface is provided with a V-shaped groove milled in advance.
Step two: and (3) automatically filling a welding wire by utilizing residual temperature remained after the inner seam welding is finished, and forming a MIG welding bottoming area in the middle of the V-shaped groove by adopting double pulses of MIG welding (2). The aluminum alloy spiral welded pipe spirally advances to a design area along with main transmission, temperature regulation is not needed at the moment because the temperature requirement is calculated during design, a TIG welding gun (3) works, and meanwhile 100% carbon dioxide protective gas is filled to perform forming welding on a welding seam (1) on the outer surface of the aluminum alloy spiral welded pipe.
2. The MIG and TIG synchronous welding process for automated spiral welds on the outside surface of aluminum alloy spiral welded tubes of claim 1, wherein: the thickness of the plate for forming the aluminum alloy spiral welded pipe is 5-20 mm.
3. The MIG and TIG synchronous welding process for automated spiral welds on the outside surface of aluminum alloy spiral welded tubes of claim 1, wherein: the opening angle of the V-shaped groove is controlled to be 63-70 degrees according to the thickness of the plate.
4. The MIG and TIG synchronous welding process for automated spiral welds on the outside surface of aluminum alloy spiral welded tubes of claim 1, wherein: the specific parameters of the process are as follows:
welding process Welding current Voltage of Synchronous welding 180-240A 18-25V
CN201911384771.4A 2019-12-28 2019-12-28 MIG and TIG synchronous welding process for automatic spiral weld joint on outer surface of aluminum alloy spiral welded pipe Pending CN111151844A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115582606A (en) * 2022-10-31 2023-01-10 江苏恒高电气制造有限公司 Welding method for spiral weld joint on inner surface of aluminum alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115582606A (en) * 2022-10-31 2023-01-10 江苏恒高电气制造有限公司 Welding method for spiral weld joint on inner surface of aluminum alloy
CN115582606B (en) * 2022-10-31 2024-01-30 江苏恒高电气制造有限公司 Welding method of spiral weld joint on inner surface of aluminum alloy

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