CN114669838A - Welding method of T-shaped fillet weld - Google Patents

Welding method of T-shaped fillet weld Download PDF

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Publication number
CN114669838A
CN114669838A CN202210493111.5A CN202210493111A CN114669838A CN 114669838 A CN114669838 A CN 114669838A CN 202210493111 A CN202210493111 A CN 202210493111A CN 114669838 A CN114669838 A CN 114669838A
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China
Prior art keywords
welding
steel plate
axis
fillet
welding method
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CN202210493111.5A
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Chinese (zh)
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CN114669838B (en
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刘博�
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Guangzhou Shipyard International Co Ltd
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Guangzhou Shipyard International Co Ltd
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Priority claimed from CN202210493111.5A external-priority patent/CN114669838B/en
Publication of CN114669838A publication Critical patent/CN114669838A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/02Seam welding; Backing means; Inserts

Abstract

The invention relates to the technical field of welding methods and discloses a welding method of a T-shaped fillet weld. Welding is performed using a welding gun including a conductive rod having an inclined state inclined to an axis of the welding gun, the conductive rod being rotatable about the axis, and when the conductive rod is in the inclined state, an end of the conductive rod for outputting a welding wire is deviated from the axis. The welding method comprises the following steps: s1, obtaining a first steel plate and a second steel plate, wherein the end part of the first steel plate extends towards the second steel plate, the first steel plate and the second steel plate are vertically arranged, and a gap is formed between the end part of the first steel plate and the second steel plate; s2, arranging one end, used for outputting welding wires, of the conducting rod towards the root of the welding line, enabling the axis of the conducting rod to form an included angle of 45 degrees with the second steel plate, enabling the conducting rod in the inclined state to rotate around the axis, and enabling the welding gun to move in the extending direction of the welding line. The invention realizes the requirement of welding angle size through one-time welding, saves the cleaning time, reduces the possibility of defects and ensures the production efficiency of the ship.

Description

Welding method of T-shaped fillet weld
Technical Field
The invention relates to the technical field of welding methods, in particular to a welding method of a T-shaped fillet weld.
Background
In the ship building process, as shown in fig. 1, a plurality of plate-shaped structures 101 exist, a plurality of T-shaped fillet welds are formed between the plate-shaped structures 101, and the plate-shaped structures 101 are connected by welding to form fillets 10. According to the atress difference, the fillet size of fillet weld fillet 10 sets up the diverse, to strong atress structure, generally sets up the fillet size very big, for satisfying the demand of fillet size, fillet 10 generally need adopt multilayer multiple pass welding, and every welding all utilizes welder to carry out straight line welding along the extending direction of welding seam, and the molten bath width is less, need clear up consuming time and wasting time between every layer every moreover. Because the welding is manual construction, the subjective factors have large influence on the quality of the fillet weld 10, the situation that the weld bead is unreasonably arranged is easy to occur, the welding seam has defects, and the welding seam needs to be repaired when necessary, so that the production efficiency of the ship is influenced.
Based on this, a method for welding a T-fillet is needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a welding method of a T-shaped fillet weld, which can meet the requirement of the size of a weld corner through one-time welding, save the cleaning time, reduce the possibility of defects at the weld corner and ensure the production efficiency of ships.
In order to achieve the purpose, the invention adopts the following technical scheme:
a welding method of a T-fillet using a welding gun, the welding gun including a contact pin having an inclined state inclined to an axis of the welding gun, the contact pin being rotatable about the axis, an end of the contact pin for outputting a welding wire being deviated from the axis when the contact pin is in the inclined state, the welding method comprising:
s1, obtaining a first steel plate and a second steel plate, wherein the end part of the first steel plate extends towards the second steel plate, the first steel plate and the second steel plate are vertically arranged, and a gap is formed between the end part of the first steel plate and the second steel plate;
s2, arranging one end, used for outputting welding wires, of the conducting rod towards the root of the welding line, wherein an included angle of 45 degrees is formed between the axis and the second steel plate, the conducting rod in the inclined state rotates around the axis, and the welding gun moves in the extending direction of the welding line.
As an optional technical solution of the welding method of the T-shaped fillet weld, in step S2, the welding gun sequentially welds two opposite sides of the first steel plate.
As an optional technical solution of the welding method for the T-shaped fillet weld, in step S2, the welding gun is mounted on a moving vehicle, a wheel is rotatably connected to the bottom of the moving vehicle, and a driving motor is further disposed on the moving vehicle, and the driving motor can drive the wheel to rotate so as to move the moving vehicle along the extending direction.
As an optional technical scheme of the welding method of the T-shaped fillet weld, an avoiding inclined plane is arranged between the top wall of the moving vehicle and the side wall facing the first steel plate, the avoiding inclined plane is arranged below the welding gun at intervals, and the avoiding inclined plane is parallel to the axis.
As an optional solution of the T-fillet welding method, in step S2, the welding gun moves at a constant speed along the extending direction.
As an optional technical scheme of the welding method of the T-shaped fillet weld, the size of the fillet weld formed in the step S2 is 10-15 mm, and the vertical distance between one end of the conducting rod for outputting the welding wire and the axis is 4-6 mm.
As an optional technical scheme of the welding method of the T-shaped fillet weld, the welding process parameters in the step S2 are 300-350A of welding current, 28-35V of welding voltage and 25-35 cm/min of welding speed.
As an optional technical scheme of a welding method of the T-shaped fillet weld, an included angle between the second steel plate and the horizontal plane is 0-45 degrees.
As an optional technical scheme of a welding method of the T-shaped fillet weld, the height of the gap is 0-2 mm.
As an optional technical scheme of the welding method of the T-shaped fillet weld, the thickness of the first steel plate is not less than 5 mm; and/or the thickness of the second steel plate is not less than 5 mm.
The invention has the beneficial effects that: according to the welding method of the T-shaped fillet weld, when welding is carried out, the conducting rod of the welding gun is in the inclined state, the conducting rod in the inclined state can rotate, so that the welding wire can form a circular molten pool at the weld joint, the width of the molten pool is enlarged compared with linear welding, and the welding gun moves along the extending direction of the weld joint to form a welding angle at the weld joint. The welding method of the T-shaped fillet weld avoids multilayer multi-pass welding, can meet the requirement of the size of the fillet weld by one-time welding, improves the welding efficiency while ensuring the connection strength between the first steel plate and the second steel plate, reduces the cleaning time and ensures the production efficiency of ships. Moreover, the influence of subjective factors on the quality of the welding corners is reduced, and the possibility of unreasonable weld bead arrangement is reduced, so that the possibility of weld defects is reduced, repair is avoided, and the production efficiency of the ship is further ensured.
Drawings
FIG. 1 is a schematic structural view of a prior art T-fillet weld;
FIG. 2 is a schematic view of a torch according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a T-fillet weld provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the horizontally arranged second steel plate assembled with the first steel plate according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a T-fillet weld during welding according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of the second steel plate and the first steel plate which are obliquely arranged according to the embodiment of the invention after being assembled;
fig. 7 is a partial structural schematic view of a welding gun according to an embodiment of the present invention during a welding process.
In the figure:
101. a plate-like structure;
10. welding corners;
1. a first steel plate; 2. a second steel plate; 3. a gap;
4. a welding gun; 40. an axis; 41. a conductive rod; 42. an angle adjusting knob; 43. a sleeve;
5. a mobile vehicle; 51. a wheel; 52. a mounting frame; 53. avoiding the inclined plane; 6. welding wires;
7. a welding gun control box; 71. a switch; 72. a speed knob; 73. a direction adjusting button.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The present embodiment provides a method for welding a T-fillet using a welding gun 4, as shown in fig. 2, the welding gun 4 includes a contact pin 41, the contact pin 41 has an inclined state inclined with respect to an axis 40 of the welding gun 4, the contact pin 41 is rotatable about the axis 40, and when the contact pin 41 is in the inclined state, an end of the contact pin 41 for outputting a welding wire 6 is deviated from the axis 40. Conductor bar 41 also has an extended state extending along axis 40, and when conductor bar 41 is in the extended state, conductor bar 41 and wire 6 output by conductor bar 41 are both collinear with axis 40. The welding gun 4 further comprises a sleeve 43, the sleeve 43 is coated outside one end of the conducting rod 41 and forms the outer wall of the welding gun 4, the cross section of the sleeve 43 is circular, the axis of the sleeve 43 is the axis 40, and one end of the conducting rod 41, which is used for outputting the welding wire 6, extends out of the sleeve 43. A driving motor for driving the conductive rod 41 to rotate around the axis 40 and a tilting mechanism for driving the conductive rod 41 to deflect so as to switch the conductive rod 41 between a tilted state and an extended state are further provided in the sleeve 43. The right side of the conductive rod 41 is one end of the output welding wire 6, and the left side of the conductive rod 41 extends into the sleeve 43 and is connected with the driving motor and the tilting mechanism inside the sleeve 43, taking the direction in fig. 2 as the standard. The conductive rod 41 in fig. 2 is in an extended state.
Further, an angle adjusting button 42 is disposed on the welding gun 4, and the angle adjusting button 42 is electrically connected to the tilting mechanism, so as to adjust the tilting angle of the conductive rod 41 relative to the axis 40.
The welding gun control box 7 is arranged outside the welding gun 4, and the welding gun control box 7 is provided with a switch 71, a speed knob 72 and a direction adjusting knob 73. The switch 71, the speed knob 72 and the direction adjusting knob 73 are electrically connected with a driving motor of the welding gun 4, the switch 71 can control the on and off of the driving motor, the speed knob 72 can adjust the rotating speed of the driving motor, and the direction adjusting knob 73 can control the output shaft of the driving motor to rotate clockwise or anticlockwise.
The structures of the welding gun 4 and the welding gun control box 7 are both the prior art, and the control principle and the connection circuit of the welding gun control box 7 for controlling the driving motor are also the prior art, which is not the key point of protection of this embodiment and is not repeated herein.
Specifically, as shown in fig. 2 to 5, the welding method of the T-fillet includes:
s1, obtaining a first steel plate 1 and a second steel plate 2, wherein the end part of the first steel plate 1 extends towards the second steel plate 2, the first steel plate 1 and the second steel plate 2 are vertically arranged, and a gap 3 is formed between the end part of the first steel plate 1 and the second steel plate 2;
and S2, arranging one end of the contact rod 41 for outputting the welding wire 6 towards the root of the welding seam, forming an included angle of 45 degrees between the axis 40 and the second steel plate 2, rotating the contact rod 41 in an inclined state around the axis 40, and moving the welding gun 4 along the extending direction of the welding seam.
In the welding method of the T-shaped fillet weld provided by the embodiment, when welding, the conducting rod 41 of the welding gun 4 is in the inclined state, and the conducting rod 41 in the inclined state can rotate, so that the welding wire 6 can form a circular molten pool at the weld joint, compared with linear welding, the molten pool width is enlarged, and the welding gun 4 moves along the extending direction of the weld joint to form the welding horn 10 at the weld joint. The welding method of the T-shaped fillet weld provided by the embodiment avoids multilayer multi-pass welding, can meet the requirement of the size of the fillet weld 10 by one-time welding, improves the welding efficiency while ensuring the connection strength between the first steel plate 1 and the second steel plate 2, reduces the cleaning time, and ensures the production efficiency of ships. Moreover, the influence of subjective factors on the quality of the welding corner 10 is reduced, and the possibility of unreasonable weld bead arrangement is reduced, so that the possibility of weld defects is reduced, repair is avoided, and the production efficiency of the ship is further ensured.
In the present embodiment, the torch 4 used is CO2The welding gun 4 also comprises a gas-liquid separator capable of outputting CO2CO of2Gas outlet nozzle, CO2The gas outlet nozzle is arranged on one side of one end, used for outputting the welding wire 6, of the conducting rod 41, the effect of protecting the welding corner 10 can be achieved, the formation of a gas hole in the welding corner 10 is avoided, the quality of the welding corner 10 is guaranteed, and therefore the connection strength between the first steel plate 1 and the second steel plate 2 is guaranteed.
As shown in fig. 2 to 7, the method for welding the T-fillet according to the present embodiment will be described in detail. The welding method comprises the following steps:
s1, obtaining a first steel plate 1 and a second steel plate 2, wherein the end part of the first steel plate 1 extends towards the second steel plate 2, the first steel plate 1 is perpendicular to the second steel plate 2, and a gap 3 exists between the end part of the first steel plate 1 and the second steel plate 2.
Specifically, the height H of the gap 3 is in the range of 0 to 2 mm. The height H of the gap 3 is preferably greater than 0, so that the contact area between the liquid metal obtained after the welding wire 6 is melted and the first steel plate 1 and the second steel plate 2 is larger, and the connection strength between the first steel plate 1 and the second steel plate 2 is ensured. The thickness of the first steel plate 1 is not less than 5 mm; and/or the thickness of the second steel plate 2 is not less than 5 mm. The thickness of the first steel plate 1 and the second steel plate 2 is thick, and in order to firmly connect the first steel plate 1 and the second steel plate 2, the welding angle size of the welding angle 10 is large, and the welding angle size of the welding angle 10 is 10 mm-15 mm.
In the present embodiment, the thickness of each of the first steel plate 1 and the second steel plate 2 is not less than 5 mm. In other embodiments, the thickness of one of the first steel plate 1 and the second steel plate 2 may be not less than 5 mm.
The welding method provided by the embodiment is suitable for the second steel plate 2 with an included angle of 0-45 degrees with the horizontal plane. It is further preferable to apply the flat fillet weld specimen of the code No. 1F (i.e., the angle between the second steel plate 2 and the horizontal plane is 45 °) as shown in fig. 4 and the lateral fillet weld specimen of the code No. 2F (i.e., the angle between the second steel plate 2 and the horizontal plane is 0) as shown in fig. 6.
In the embodiment, the welding wire 6 is made of E71T-1C type material, and the diameter of the welding wire 6 is 1.0 mm-1.2 mm. The material type and the diameter range ensure that the fillet weld 10 can be formed at one time.
And S2, arranging one end of the contact rod 41 for outputting the welding wire 6 towards the root of the welding seam, forming an included angle of 45 degrees between the axis 40 and the second steel plate 2, rotating the contact rod 41 in an inclined state around the axis 40, and moving the welding gun 4 along the extending direction of the welding seam.
Specifically, the welding process parameters in the step S2 are 300A-350A of welding current, 28V-35V of welding voltage and 25 cm/min-35 cm/min of welding speed.
Preferably, in step S2, as shown in fig. 7, the perpendicular distance between the end of the conductive rod 41 for outputting the welding wire 6 and the axis 40 is 4mm to 6 mm. Because the welding angle size of welding angle 10 is 10mm ~ 15mm, if regard welding angle 10 as the right triangle structure, then two right-angle sides respectively with first steel sheet 1 and the laminating of second steel sheet 2, and conducting rod 41 is used for the one end of output welding wire 6 to set up towards the welding seam root, axis 40 is the tie point through two right-angle sides promptly, the size of two right-angle sides is 10mm ~ 15mm promptly. If the vertical distance is set to be 4 mm-6 mm, the distance that the welding wire 6 extends out of the conducting rod 41 is short, the welding wire 6 is prevented from being bent, the size of a welding corner can be ensured, the quality of the welding corner 10 is ensured, and the connection strength between the first steel plate 1 and the second steel plate 2 is ensured.
Further, the guide bar 41 is rotated about the axis 40 at a speed of 1500 rpm to 2000 rpm. And the guide bar 41 rotates at a constant speed.
Preferably, in step S2, the welding gun 4 sequentially welds the opposite sides of the first steel plate 1. All weld in the both sides of first steel sheet 1 for the both sides of first steel sheet 1 all form welding angle 10, have further guaranteed the joint strength between first steel sheet 1 and the second steel sheet 2, have avoided first steel sheet 1 and second steel sheet 2 to separate when welding other structures on boats and ships, have avoided the operation of doing over again, clear away the operation of welding angle 10 when also having avoided doing over again, have guaranteed the production efficiency of boats and ships. Further, the welding angles 10 on the two sides of the first steel plate 1 have the same size, so that the welding process parameters, the moving speed of the welding gun 4 and the rotating speed of the guide rod 41 are prevented from being adjusted again, the welding efficiency is ensured, and the production efficiency of the ship is ensured.
Further, in step S2, as shown in fig. 5, the welding gun 4 is mounted on the moving vehicle 5, the wheels 51 are rotatably connected to the bottom of the moving vehicle 5, and the driving motor is further provided on the moving vehicle 5, and the driving motor can drive the wheels 51 to rotate so as to move the moving vehicle 5 in the extending direction. Set up locomotive 5 and drive welder 4 and remove, improved degree of automation, also further avoided manual operation simultaneously, reduced the influence of subjective factor to the welding effect, guaranteed the quality of fillet weld 10, reduced the possibility that causes the welding seam defect, avoided reprocessing, further guaranteed the production efficiency of boats and ships. In this embodiment, in step S2, the welding gun 4 moves at a constant speed along the extending direction, the speed is 25cm/min to 35cm/min, and the welding speed is the moving speed of the moving vehicle 5.
The fixed mounting bracket 52 that is provided with in top of locomotive 5, welder 4's top can be dismantled and connect in mounting bracket 52, is convenient for change welder 4 according to the welding demand of difference, has guaranteed welding quality, has reduced the possibility that causes the welding seam defect, has guaranteed the production efficiency of boats and ships.
Preferably, an avoiding inclined surface 53 is arranged between the top wall of the moving vehicle 5 and the side wall facing the first steel plate 1, the avoiding inclined surface 53 is arranged below the welding gun 4 at intervals, and the avoiding inclined surface 53 is arranged in parallel with the axis 40. Set up and dodge inclined plane 53, can avoid producing between locomotive 5 and the welder 4 and interfere, can guarantee that the lateral area of locomotive 5 is great, avoided because dodge the less condition of 5 horizontal areas of locomotive that welder 4 leads to and taken place, guaranteed the steady degree of locomotive 5 to avoid the possibility that locomotive 5 turned on one's side, guaranteed that welding process can go on smoothly, improved welding efficiency, guaranteed the production efficiency of boats and ships. And the possibility of causing weld defects is reduced, repair is avoided, and the production efficiency of the ship is further ensured.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A welding method of a T-fillet using a welding gun (4) for welding, the welding gun (4) including a conductor bar (41), the conductor bar (41) having an inclined state inclined to an axis (40) of the welding gun (4), the conductor bar (41) being rotatable about the axis (40), an end of the conductor bar (41) for outputting a welding wire (6) being deviated from the axis (40) when the conductor bar (41) is in the inclined state, characterized by comprising:
s1, obtaining a first steel plate (1) and a second steel plate (2), wherein the end part of the first steel plate (1) extends towards the second steel plate (2), the first steel plate (1) is perpendicular to the second steel plate (2), and a gap (3) exists between the end part of the first steel plate (1) and the second steel plate (2);
s2, one end, used for outputting the welding wire (6), of the conducting rod (41) is arranged towards the root of the welding seam, an included angle of 45 degrees is formed between the axis (40) and the second steel plate (2), the conducting rod (41) in the inclined state rotates around the axis (40), and the welding gun (4) moves along the extending direction of the welding seam.
2. The welding method of the T-fillet as in claim 1, wherein in step S2, the welding guns (4) weld opposite sides of the first steel plate (1) in sequence.
3. The welding method of the T-shaped fillet weld according to the claim 1, wherein in the step S2, the welding gun (4) is installed on a moving vehicle (5), the bottom of the moving vehicle (5) is rotatably connected with a wheel (51), and a driving motor is further arranged on the moving vehicle (5), and the driving motor can drive the wheel (51) to rotate so as to enable the moving vehicle (5) to move along the extending direction.
4. The welding method of the T-fillet according to the claim 3, characterized in that an avoiding inclined surface (53) is arranged between the top wall of the moving vehicle (5) and the side wall facing the first steel plate (1), the avoiding inclined surface (53) is arranged under the welding gun (4) at intervals, and the avoiding inclined surface (53) is arranged in parallel with the axis (40).
5. The welding method of the T-fillet as in claim 1, wherein the welding torch (4) is moved at a constant speed in the extending direction in step S2.
6. The welding method of the T-fillet as in claim 1, wherein the fillet size of the fillet (10) formed in step S2 is 10-15 mm, and the vertical distance between the end of the conductive rod (41) for outputting the welding wire (6) and the axis (40) is 4-6 mm.
7. The welding method of the T-shaped fillet weld according to the claim 1, wherein the welding process parameters in the step S2 are 300A-350A of welding current, 28V-35V of welding voltage and 25 cm/min-35 cm/min of welding speed.
8. The method for welding a T-fillet according to claim 1, wherein said angle between said second steel plate (2) and the horizontal plane is comprised between 0 ° and 45 °.
9. The welding method of a T-fillet as in claim 1, characterized in that the height of said gap (3) is 0-2 mm.
10. The welding method of a T-fillet according to claim 1, characterized in that the thickness of said first steel plate (1) is not less than 5 mm; and/or the thickness of the second steel plate (2) is not less than 5 mm.
CN202210493111.5A 2022-05-07 Welding method of T-shaped fillet weld Active CN114669838B (en)

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Application Number Priority Date Filing Date Title
CN202210493111.5A CN114669838B (en) 2022-05-07 Welding method of T-shaped fillet weld

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Application Number Priority Date Filing Date Title
CN202210493111.5A CN114669838B (en) 2022-05-07 Welding method of T-shaped fillet weld

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CN114669838A true CN114669838A (en) 2022-06-28
CN114669838B CN114669838B (en) 2024-04-30

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86103033A (en) * 1985-04-30 1987-10-07 日本钢管株式会社 The groove profiling control method of high speed rotating arc fillet weld
EP0367850A1 (en) * 1988-11-08 1990-05-16 Nkk Corporation Apparatus for automatically fillet-welding object to be welded comprising rectangular bottom plate and four side plates tack-welded substantially vertically to said bottom plate
JP2000000667A (en) * 1998-06-16 2000-01-07 Nkk Corp Tandem arc welding method
WO2005082566A1 (en) * 2004-02-26 2005-09-09 Yoshimoto High Tech Co., Ltd. Welding device and welding method
CN202045436U (en) * 2010-11-16 2011-11-23 季关钰 Thick plate narrow gap rotating arc welding machine
CN102581453A (en) * 2012-02-25 2012-07-18 哈尔滨工业大学(威海) Narrow gap welding device
CN108581256A (en) * 2018-04-26 2018-09-28 广船国际有限公司 A kind of two phase stainless steel complete penetraction and fusion in welding fillet weld automatic welding method
CN110560902A (en) * 2019-09-23 2019-12-13 南京中科煜宸激光技术有限公司 Swinging laser wire-filling welding method for fillet weld of T-shaped joint of medium plate
CN110681956A (en) * 2019-10-28 2020-01-14 平顶山平煤机煤矿机械装备有限公司 Deep-fusion fillet welding process for welding medium plate of hydraulic support structural part

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86103033A (en) * 1985-04-30 1987-10-07 日本钢管株式会社 The groove profiling control method of high speed rotating arc fillet weld
EP0367850A1 (en) * 1988-11-08 1990-05-16 Nkk Corporation Apparatus for automatically fillet-welding object to be welded comprising rectangular bottom plate and four side plates tack-welded substantially vertically to said bottom plate
JP2000000667A (en) * 1998-06-16 2000-01-07 Nkk Corp Tandem arc welding method
WO2005082566A1 (en) * 2004-02-26 2005-09-09 Yoshimoto High Tech Co., Ltd. Welding device and welding method
CN202045436U (en) * 2010-11-16 2011-11-23 季关钰 Thick plate narrow gap rotating arc welding machine
CN102581453A (en) * 2012-02-25 2012-07-18 哈尔滨工业大学(威海) Narrow gap welding device
CN108581256A (en) * 2018-04-26 2018-09-28 广船国际有限公司 A kind of two phase stainless steel complete penetraction and fusion in welding fillet weld automatic welding method
CN110560902A (en) * 2019-09-23 2019-12-13 南京中科煜宸激光技术有限公司 Swinging laser wire-filling welding method for fillet weld of T-shaped joint of medium plate
CN110681956A (en) * 2019-10-28 2020-01-14 平顶山平煤机煤矿机械装备有限公司 Deep-fusion fillet welding process for welding medium plate of hydraulic support structural part

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