CN110653480B - Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding - Google Patents

Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding Download PDF

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Publication number
CN110653480B
CN110653480B CN201910915517.6A CN201910915517A CN110653480B CN 110653480 B CN110653480 B CN 110653480B CN 201910915517 A CN201910915517 A CN 201910915517A CN 110653480 B CN110653480 B CN 110653480B
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repaired
diameter
plate
hole
flange plate
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CN110653480A (en
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姬书得
温琦
马琳
宫雪
岳玉梅
吕赞
杨康
宋崎
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Shenyang Aerospace University
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Shenyang Aerospace University
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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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/1215—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding for other purposes than joining, e.g. built-up welding
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The device comprises a base plate, a heating ring wire outlet, a heating ring mounting groove, an auxiliary groove, a main groove, a fixed clamping end, a to-be-repaired flange plate, a supporting seat, a screw nut, a mounting bolt, a rectangular mounting plate, a V-shaped mounting plate, a screw, a movable clamping end, a guide rail sliding block, a screw fixing seat and a sliding block seat, and the device moves through the screw to clamp the to-be-repaired flange plate. Filling materials are put into the hole to be repaired, and the stirring head with the right-handed thread cylindrical stirring pin is used for clockwise rotating to repair the aperture of the flange plate; the height of the filler material can be selected to be greater than the depth of the hole to be repaired to avoid thinning problems. Meanwhile, the flange plate can be repaired by clamping once.

Description

Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding
Technical Field
The invention belongs to the technical field of flange plate aperture repair, and particularly relates to a device and a method for repairing an out-of-tolerance flange plate aperture by friction stir welding.
Background
The flange plate is also called flange, is one of the most common parts in pipeline engineering, and can quickly realize the connection and fixation of tubular objects. However, in the long-term service process of the flange plate, the problems of damage to the inner diameter of the flange, out-of-tolerance of bolt holes and the like can occur. The existing repair method aiming at the problems mainly comprises repair welding, grinding and the like.
Chinese patent inventions 201711381548.5, 201820735508.X, 200910258256.1 and the like propose that the flange plate is repaired by adopting a polishing mode. However, the thickness of the flange plate is reduced by the repairing mode, the bearing area of the flange plate is reduced, and the flange plate is not beneficial to the secondary service of the flange plate.
The invention discloses a flange repairing device in Chinese utility model patent 201420578260.2. The device can be used for recasting the flange plate. However, the method can only repair the flange plate made of low-temperature materials.
The invention discloses a flange repairing device in Chinese utility model patent 201820493694.0. The flange plate can be positioned through the device, and then is repaired through a repair welding mode. The flange is fixed by 6 screws, but the method is not favorable for positioning the flange. Meanwhile, the traditional fusion welding repair welding can cause coarse grains in a repair area and obviously reduce the performance. This would be detrimental to the re-commissioning of the repaired flange.
In the above method, although the damaged flange can be repaired, there are problems that the performance of the repair area is seriously reduced and the repair range is narrow.
Disclosure of Invention
In view of the problems existing in the method, the invention aims to provide a device and a method for repairing flange plates with out-of-tolerance aperture by friction stir welding. The cylindrical stirring tool used in the invention is provided with right-handed threads, when the stirring tool rotates clockwise, materials near the stirring needle flow upwards, meanwhile, the shaft shoulder promotes the materials to flow downwards, the materials flow to form a circulation, and the bonding strength of the filling materials and the hole wall is greatly enhanced. The flange plate clamping structure used by the device is a semi-surrounding structure, consists of a fixed clamping end and a movable clamping end, and is suitable for flange plates with different diameters. The movable clamping end moves through the lead screw to clamp the flange plate on the clamp. In the repairing process, the heating ring on the backing plate can make up the problem of insufficient heat generation at the tip of the stirring pin, and effectively increases the bonding strength between the filling material and the wall of the out-of-tolerance hole. Meanwhile, the groove on the backing plate can avoid the damage of the tip of the stirring head caused by contacting with hard materials in the repairing process.
A device for repairing a flange plate with an out-of-bore friction stir welding comprises a supporting seat, a lead screw, a fixed clamping end and a movable clamping end, wherein guide rails are symmetrically arranged on the upper surface of the supporting seat through guide rail mounting screws, guide rail sliders are slidably mounted on the guide rails, a mounting seat is arranged on the end surface of the supporting seat through mounting bolts, a rectangular mounting plate and a V-shaped mounting plate are respectively and integrally formed on the upper surface of the mounting seat, the rectangular mounting plate is arranged closer to one end of the guide rails than the V-shaped mounting plate, the fixed clamping end is arranged on the other ends of the two guide rails through two slider seats arranged on the lower surface of the fixed clamping end, a lead screw fixing seat is arranged on the lower surface of the fixed clamping end between the two slider seats, one end of the lead screw is arranged on the lead screw fixing seat through a bearing, the other end of the lead screw sequentially penetrates through holes of the rectangular mounting plate and the V-shaped mounting plate, and bearings are arranged in the through holes of the lead screw, the rectangular mounting plate and the V-shaped mounting plate, a movable clamping end is fixedly arranged on a lead screw nut of the lead screw.
The backing plate is the circular slab, offers the main recess that corresponds with the ring flange centre bore in the center department of backing plate, still offers the heating ring mounting groove with the coaxial setting of main recess on the backing plate, and the heating ring mounting groove is close to main recess one end and sets up, has offered the export of heating ring electric wire on the heating ring mounting groove, installs the heating ring in the heating ring mounting groove, evenly offers the supplementary recess that the ring flange bolt hole corresponds in the circumference of backing plate.
The part of the lead screw extending out of the V-shaped mounting plate is connected with a ratchet handle, a stepping motor or a servo motor.
The use method of the device for repairing the flange plate by the friction stir welding with the out-of-tolerance aperture adopts the device for repairing the flange plate by the friction stir welding with the out-of-tolerance aperture, and comprises the following steps:
step 1: firstly, sequentially placing a base plate and a flange plate to be repaired on a fixed clamping end and a movable clamping end, and driving the movable clamping end to move towards one side of the fixed clamping end and clamp the flange plate to be repaired and the base plate by rotating a lead screw; placing a device for repairing the aperture out-of-tolerance of the flange plate under a main shaft of friction stir welding equipment to ensure that a hole to be repaired and the main shaft are coaxial;
step 2: switching on a power supply to electrify the heating ring on the base plate, starting a heating function and preheating for 1-30 min, wherein the heating temperature of the heating ring is 100-2000 ℃;
and step 3: placing the small-diameter end of the T-shaped block in a hole to be repaired of the flange plate to be repaired, wherein the diameter psi of the small-diameter end of the T-shaped block2Less than 0-1 mm of the minimum diameter of the hole to be repaired, and the diameter psi of the large-diameter end of the T-shaped block1The diameter of the T-shaped block is 1-30 mm larger than the maximum diameter of the hole to be repaired, and the lower end face of the large-diameter end of the T-shaped block is 0-5 mm higher than the upper surface of the hole to be repaired;
and 4, step 4: selecting a stirring head, driving the stirring head to rotate at a rotating speed of 50-10000 r/min under the forward rotation of a main shaft of friction stir welding equipment, and simultaneously pricking the stirring head into a hole to be repaired at a speed of 0.1-10 mm/min; stopping the downward pricking when the distance between the shaft shoulder of the stirring head and the upper surface of the hole to be repaired is 0-0.5 mm, keeping the rotation speed of the stirring head for 1-60 s, then reversing the main shaft of the friction stir welding equipment, drawing the stirring head back, and completing the repairing.
The diameter of the shaft shoulder of the stirring head is larger than that of the large-diameter end psi of the T-shaped block1The diameter is 0-200 mm.
And 4, adding an ultrasonic vibration system in the welding process, wherein the ultrasonic vibration system consists of an ultrasonic generator and an amplitude transformer, and the bonding strength between the filling material and the wall of the out-of-tolerance hole is enhanced by adding the ultrasonic vibration system, wherein the ultrasonic vibration power is 60-2000W, and the amplitude is 15-55 mu m.
The stirring head adopts the stirring head of cylindrical screw thread stirring needle, and the length of cylindrical screw thread stirring needle is greater than and takes the restoration hole degree of depth 0 ~ 5mm, and the diameter of cylindrical stirring needle is the design diameter in the hole of waiting to restore the ring flange.
The rotation direction of the cylindrical threaded stirring pin is divided into left rotation and right rotation, and when the left-handed cylindrical threaded stirring pin is selected, the rotation direction of the stirring head is anticlockwise; when a right-handed cylindrical threaded pin is selected, the direction of rotation of the pin is clockwise.
The ratio of the diameter of the shaft shoulder of the stirring head to the diameter of the cylindrical threaded stirring pin is 2: 1-10: 1.
The invention has the beneficial effects that:
1. in the repairing process, when a left-handed cylindrical threaded stirring pin is selected, the rotating direction of the stirring head is anticlockwise; when a right-handed cylindrical threaded pin is selected, the direction of rotation of the pin is clockwise. The combination of left + inverse or right + cis is just opposite to the friction stir welding process, so that the materials flow upwards and gather at the root part (close to the end face of the shaft shoulder) of the stirring pin in the repairing process, and higher repairing quality is obtained under the upsetting action of the shaft shoulder.
2. In the process of downwards pricking the stirring head, the strong stirring action of the stirring pin enables the hole wall and materials nearby the hole wall to be dynamically recrystallized, and the fine grains greatly improve the mechanical property and the corrosion resistance of the hole wall and nearby areas, so that the repaired connecting hole is favorable for serving again.
3. In the invention, the flange plate out-of-tolerance hole is repaired without thinning in a T-shaped block mode.
4. In the invention, the flanges with different diameters can be clamped in the clamp. Meanwhile, the repair of all out-of-tolerance holes of the flange can be realized by one-time clamping.
5. The invention is derived from friction stir welding and is a solid phase repair technology. Compared with the traditional flange fusion welding repair method, the temperature in the repair process is lower, and secondary defects such as air holes and cracks are avoided.
6. Compared with the traditional shaft sleeve repairing mode, the method has the advantages that the filling material and the flange plate material are in diffusion connection, a good connecting interface is provided, the connecting strength is high, and the method is a good method for repairing the threaded hole of the flange plate. Meanwhile, in order to increase the diffusion bonding effect, an ultrasonic vibration auxiliary process may be applied to the back, side, or front surface.
Drawings
FIG. 1 is a first view of the overall structure of a repair device for friction stir welding of an out-of-tolerance aperture of a flange plate according to the present invention;
FIG. 2 is a second view of the overall structure of the repair device for friction stir welding with out-of-tolerance flange aperture according to the present invention;
FIG. 3 is a schematic view of a backing plate structure in the repair device for the out-of-tolerance stir friction welding of the aperture of the flange plate according to the present invention;
FIG. 4 is a schematic diagram of a stirring head for repairing a flange plate of the device for repairing the flange plate by friction stir welding with an out-of-tolerance aperture of the flange plate according to the present invention;
FIG. 5 is a schematic view of the repairing process of the flange repaired by the repair device for friction stir welding with out-of-tolerance aperture of the flange of the present invention;
FIG. 6 is a schematic view of a T-shaped block for repairing a flange plate by the repair device for friction stir welding of an out-of-tolerance aperture of a flange plate according to the present invention;
1-stirring head, 2-stirring head shaft shoulder, 3-stirring needle, 4-backing plate, 5-heating ring wire outlet, 6-heating ring installation groove, 7-auxiliary groove, 8-main groove, 9-fixed clamping end, 10-to-be-repaired flange plate, 11-supporting seat, 12-screw nut, 13-installation bolt, 14-rectangular installation plate, 15-V-shaped installation plate, 16-screw, 17-movable clamping end, 18-guide rail slide block, 19-screw fixing seat, 20-slide block seat, 21-T-shaped block, 22-to-be-repaired hole, and 23-repaired hole wall.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, a device for repairing a flange plate with an out-of-tolerance aperture by friction stir welding comprises a supporting seat 11, a lead screw 16, a fixed clamping end 9 and a movable clamping end 17, wherein guide rails are symmetrically installed on the upper surface of the supporting seat 11 through guide rail installation screws, a guide rail slider 18 is slidably installed on the guide rails, the guide rail slider 18 is matched with a trapezoidal guide rail through a trapezoidal groove on the guide rail, an installation seat is arranged on the end surface of the supporting seat 11 through an installation bolt 13, a rectangular installation plate 14 and a V-shaped installation plate 15 are respectively integrally formed on the upper surface of the installation seat, the rectangular installation plate 14 is arranged closer to one end of the guide rail than the V-shaped installation plate 15, the fixed clamping end 9 is installed on the other ends of the two guide rails through two slide seat 20 arranged on the lower surface of the fixed clamping end 9, the slide seat 20 is fixed with the guide rail through screws, the lead screw fixing seat 19 is arranged on the lower surface of the fixed clamping end 9 between the two slide seats 20, one end of the screw 16 is mounted on the screw fixing seat 19 through a bearing, the other end of the screw 16 sequentially penetrates through holes of the rectangular mounting plate 14 and the V-shaped mounting plate 15, bearings are mounted in the through holes of the screw 16, the rectangular mounting plate 14 and the V-shaped mounting plate 15, a movable clamping end 17 is fixedly mounted on a screw nut 12 of the screw 16, end faces of the movable clamping end 17 and the fixed clamping end 9 are both of an L-shaped structure, and the device disclosed by the invention adopts a split type arc-shaped clamping structure of the fixed clamping end 9 and the movable clamping end 17, so that clamping of flange plates with different diameters can be realized.
The backing plate 4 is a circular plate, a main groove 8 corresponding to the central hole of the flange plate is arranged at the center of the backing plate 4, can avoid the damage caused by the contact of the tip of the stirring pin 3 with the length not less than the depth of the connecting hole and the backing plate 4, a heating ring mounting groove 6 which is coaxial with the main groove is also arranged on the backing plate 4, and the heating ring mounting groove 6 is arranged near one end of the main groove, a heating ring wire outlet 5 is arranged on the heating ring installation groove 6, a heating ring is arranged in the heating ring installation groove 6, in the repairing process, the heating ring on the backing plate 4 can make up the problem of insufficient heat generation at the tip of the stirring pin 3, effectively increase the bonding strength between the filling material and the wall of the out-of-tolerance hole, the auxiliary groove 7 corresponding to the flange plate bolt hole is uniformly formed in the circumferential direction of the base plate 4, and damage caused by contact of the tip of the stirring pin 3 with the depth of the connecting hole and the base plate 4 is avoided.
The part of the lead screw 16 extending out of the V-shaped mounting plate 15 is connected with a ratchet handle, a stepping motor or a servo motor.
A method for using a device for repairing the hole diameter of a flange by using the friction stir welding is disclosed, wherein the device for repairing the hole diameter of the flange by using the friction stir welding is shown in figures 5 and 6, and comprises the following steps:
step 1: firstly, a stepping motor is connected with a part of a lead screw 16 extending out of a V-shaped mounting plate 15 through a coupler, a backing plate 4 and a flange plate 10 to be repaired are sequentially placed on a fixed clamping end 9 and a movable clamping end 17, the stepping motor is started, the stepping motor rotates forwards to drive the lead screw 16 to rotate, the lead screw nut 12 is driven to move through the rotation of the lead screw 16, and then the movable clamping end 17 is driven to move towards one side of the fixed clamping end 9 through the movement of the lead screw nut 12 and clamp the flange plate 10 to be repaired and the backing plate 4; the method comprises the following steps of placing a device for repairing the aperture out-of-tolerance of the flange plate under a main shaft of friction stir welding equipment, and enabling a hole 22 to be repaired of the flange plate to be opposite to the main shaft, wherein the depth of the hole with the repaired hole is 5mm, the aperture is 12mm, and the target aperture is 10 mm;
step 2: switching on a power supply to electrify the heating ring on the backing plate 4, starting a heating function and preheating for 10min, wherein the heating temperature of the heating ring is 200 ℃;
and step 3: placing the small-diameter end of the T-shaped block 21 in the hole 22 to be repaired of the flange plate 10 to be repairedWherein the diameter psi of the small-diameter end of the T-shaped block 212Is 12mm, length H15mm, the diameter psi of the large diameter end of the T-shaped block1Is 20mm, length H2The diameter of the T-shaped block 21 is 5mm, and the lower end face of the large-diameter end of the T-shaped block is 2mm higher than the upper surface of the hole 22 to be repaired;
and 4, step 4: selecting a stirring head 1 with a cylindrical threaded stirring pin 3, wherein the stirring head 1 consists of a stirring head shaft shoulder 2 and the stirring pin 3, the diameter 2 of the stirring head shaft shoulder 2 is 30mm, the diameter 3 of the stirring pin 3 is 10mm, and the length is 5 mm; the stirring head 1 is driven to rotate at a rotating speed of 1600r/min under the positive rotation of a main shaft of the friction stir welding equipment, and simultaneously is inserted into the hole 22 to be repaired at a speed of 2 mm/min; and stopping the downward pricking when the shaft shoulder 2 of the stirring head is combined with the upper surface of the hole 22 to be repaired, keeping the stirring head 1 at the rotating speed for 30s, then reversing the main shaft of the friction stir welding equipment to draw the stirring head 1 back, and completing the repairing to form the repaired hole wall 23.
Example 2:
embodiment 2 differs from embodiment 1 in that in step 1, the ratchet handle is connected to the portion of the lead screw 16 extending out of the V-shaped mounting plate 15; the rest is the same as in example 1.
Example 3
Example 3 differs from example 1 in that the pin 3 in step 4 is 6mm long; stopping pricking when the distance between the shaft shoulder 2 of the stirring head and the upper surface of the hole with the repair hole is 1 mm; the rest is the same as in example 1.
Example 4
Embodiment 4 is different from embodiment 1 in that, in step 4, the stirring head 1 is driven to rotate at a rotation speed of 1600r/min by the forward rotation of the main shaft of the friction stir welding device, and simultaneously applies ultrasonic vibration when penetrating into the hole 22 to be repaired at a speed of 2mm/min, and the parameters of the ultrasonic vibration are as follows: the vibration power is 2000W, and the amplitude is 15 μm; the rest is the same as in example 1.
Example 5
Embodiment 5 differs from embodiment 1 in that in step 4, the stirring head 1 of the cylindrical stirring pin 3 with the left spiral groove is selected to rotate in the counterclockwise direction; the rest is the same as in example 1.

Claims (6)

1. A device for repairing the hole diameter of a flange plate by friction stir welding is characterized by comprising a supporting seat, a lead screw, a fixed clamping end and a movable clamping end, wherein guide rails are symmetrically arranged on the upper surface of the supporting seat through guide rail mounting screws, guide rail sliding blocks are slidably mounted on the guide rails, the end surface of the supporting seat is provided with a mounting seat through mounting bolts, a rectangular mounting plate and a V-shaped mounting plate are respectively and integrally formed on the upper surface of the mounting seat, the rectangular mounting plate is arranged close to one end of each guide rail compared with the V-shaped mounting plate, the fixed clamping end is arranged on the other end of each guide rail through two sliding block seats arranged on the lower surface of the fixed clamping end between the two sliding block seats, a lead screw fixing seat is arranged on the lower surface of the fixed clamping end, one end of the lead screw is arranged on the lead screw fixing seat through a bearing, and the other end of the lead screw sequentially penetrates through holes of the rectangular mounting plate and the V-shaped mounting plate, bearings are arranged in through holes of the screw rod, the rectangular mounting plate and the V-shaped mounting plate, a movable clamping end is fixedly arranged on a screw rod nut of the screw rod, and a base plate and a flange to be repaired are sequentially arranged on the fixed clamping end and the movable clamping end;
the backing plate is the circular slab, offers the main recess that corresponds with the ring flange centre bore in the center department of backing plate, still offers the heating ring mounting groove with the coaxial setting of main recess on the backing plate, and the heating ring mounting groove is close to main recess one end and sets up, has offered the export of heating ring electric wire on the heating ring mounting groove, installs the heating ring in the heating ring mounting groove, evenly offers the supplementary recess that the ring flange bolt hole corresponds in the circumference of backing plate.
2. The device for repairing the flange plate with the out-of-tolerance bore diameter by friction stir welding according to claim 1, is characterized in that: the part of the lead screw extending out of the V-shaped mounting plate is connected with a ratchet handle, a stepping motor or a servo motor.
3. The use method of the device for repairing the hole diameter of the flange by the friction stir welding is characterized by comprising the following steps of:
step 1: firstly, sequentially placing a base plate and a flange plate to be repaired on a fixed clamping end and a movable clamping end, and driving the movable clamping end to move towards one side of the fixed clamping end and clamp the flange plate to be repaired and the base plate by rotating a lead screw; placing a device for repairing the aperture out-of-tolerance of the flange plate under a main shaft of friction stir welding equipment to ensure that a hole to be repaired and the main shaft are coaxial;
step 2: switching on a power supply to electrify the heating ring on the base plate, starting a heating function and preheating for 1-30 min, wherein the heating temperature of the heating ring is 100-2000 ℃;
and step 3: placing the small-diameter end of the T-shaped block in a hole to be repaired of the flange plate to be repaired, wherein the diameter psi of the small-diameter end of the T-shaped block2Less than 0-1 mm of the minimum diameter of the hole to be repaired, and the diameter psi of the large-diameter end of the T-shaped block1The diameter of the T-shaped block is 1-30 mm larger than the maximum diameter of the hole to be repaired, and the lower end face of the large-diameter end of the T-shaped block is 0-5 mm higher than the upper surface of the hole to be repaired;
and 4, step 4: selecting a stirring head, wherein the stirring head adopts a cylindrical threaded stirring pin, the length of the cylindrical threaded stirring pin is 0-5 mm greater than the depth of a hole to be repaired, and the diameter of the cylindrical stirring pin is the designed diameter of the hole to be repaired of the flange plate to be repaired; the rotation direction of the cylindrical threaded stirring pin is divided into left rotation and right rotation, and when the left-handed cylindrical threaded stirring pin is selected, the rotation direction of the stirring head is anticlockwise; when a right-handed cylindrical threaded stirring pin is selected, the rotation direction of the stirring head is clockwise; in the welding process, the stirring head is driven to rotate at a rotating speed of 50-10000 r/min under the positive rotation of a main shaft of friction stir welding equipment, and simultaneously, the stirring head is inserted into a hole to be repaired at a speed of 0.1-10 mm/min; stopping the downward pricking when the distance between the shaft shoulder of the stirring head and the upper surface of the hole to be repaired is 0-0.5 mm, keeping the rotation speed of the stirring head for 1-60 s, then reversing the main shaft of the friction stir welding equipment, drawing the stirring head back, and completing the repairing.
4. The use method of the device for repairing the flange plate with the ultra-poor aperture by friction stir welding according to claim 3, is characterized in that: the diameter of the shaft shoulder of the stirring head is larger than that of the large-diameter end psi of the T-shaped block1The diameter is 0-200 mm.
5. The use method of the device for repairing the flange plate with the ultra-poor aperture by friction stir welding according to claim 3, is characterized in that: and 4, adding an ultrasonic vibration system in the welding process in the step 4, wherein the ultrasonic vibration power is 60-2000W, and the amplitude is 15-55 mu m.
6. The use method of the device for repairing the flange plate with the ultra-poor aperture by friction stir welding according to claim 3, is characterized in that: the ratio of the diameter of the shaft shoulder of the stirring head to the diameter of the cylindrical threaded stirring pin is 2: 1-10: 1.
CN201910915517.6A 2019-09-26 2019-09-26 Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding Active CN110653480B (en)

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CN112355565B (en) * 2020-11-12 2021-08-27 燕山大学 Device and method for repairing hole diameter of rod body seat hole of rod end joint bearing made of aluminum alloy
CN112916998A (en) * 2021-02-01 2021-06-08 中车工业研究院有限公司 Deep hole structure repairing method based on friction plunger welding and stopper rod applied by same

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CN102500915B (en) * 2011-11-08 2014-06-04 西安交通大学 Method for filling friction stir welding keyhole by using T-shaped filling block and bitless stirring head
WO2013168072A1 (en) * 2012-05-07 2013-11-14 Nelson Mandela Metropolitan University Method of repairing radially cracked hole
CN106312633B (en) * 2016-11-06 2018-10-02 昆明学院 A kind of machining clamping multi-functional clamp
CN106583916B (en) * 2017-01-23 2018-11-23 沈阳航空航天大学 A method of long volume flaw in metal component is answered with agitating friction repair welding
CN106624342B (en) * 2017-01-23 2018-11-23 沈阳航空航天大学 A method of metal component volume flaw is answered with agitating friction repair welding
CN106624343B (en) * 2017-01-23 2018-10-19 沈阳航空航天大学 A kind of friction stir welding tools and the method with soldering set reparation keyhole defect
CN107150167B (en) * 2017-06-21 2019-06-28 西安交通大学 A kind of collet power supply assisted recombination formula twin shaft dynamic agitation friction welding method
US10532425B2 (en) * 2017-10-16 2020-01-14 The Boeing Company Repairing holes created in components during bobbin friction stir welding
CN108098249A (en) * 2017-12-06 2018-06-01 首都航天机械公司 A kind of solution method of carrier rocket tank double-shaft shoulder friction stir welding keyhole
CN110170739B (en) * 2019-06-19 2021-01-26 南京航空航天大学 Structural hole remanufacturing and reinforcing method based on friction stir connection

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