CN106583916A - Method for repairing long volume type defects in metal component by utilizing friction stir welding - Google Patents
Method for repairing long volume type defects in metal component by utilizing friction stir welding Download PDFInfo
- Publication number
- CN106583916A CN106583916A CN201710057732.8A CN201710057732A CN106583916A CN 106583916 A CN106583916 A CN 106583916A CN 201710057732 A CN201710057732 A CN 201710057732A CN 106583916 A CN106583916 A CN 106583916A
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- hardware
- area
- filler metal
- stirring
- head
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Classifications
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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
- B23K20/122—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 using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—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 using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
Abstract
The invention discloses a method for repairing long volume type defects in a metal component by utilizing friction stir welding. The method comprises the following steps of: 1, digging irregular long volume type defects of a to-be-repaired metal component to form long-strip-shaped grooves, and filling the grooves with homogeneous or heterogeneous metal; 2, putting the metal component onto a base plate for being fixed, and enabling a to-be-repaired area to be in a horizontal state; 3, using a needle-free stirring head to fix filling metal into long-strip-shaped grooves of the metal component through friction stir welding; 4, using a stirring head with a stirring needle and a static shaft shoulder which is matched with the stirring head to carry out friction stir welding on filling metal and the metal component; and 5, after friction stir welding is completed, carrying out re-vibrating on the to-be-repaired area by utilizing ultrasonic vibrating. The method disclosed by the invention can solve the technical problem in repairing of long volume type defects of the metal component, and has the advantages of being good in metallurgical bonding with the to-be-repaired area, high in strength, flat and smooth in surface and small in internal stress.
Description
Technical field
The present invention relates to metal welding, long volume flaw in particularly a kind of reparation hardware with agitating friction weldering
Method.
Background technology
Magnesium alloy and aluminium alloy are because being widely used in manufacture the characteristics of having relatively low density, specific strength and higher specific stiffness
In industry.In magnesium alloy and aluminium alloy casting process, often there is variously-shaped defect on its surface, affect magnesium alloy
Or the quality of aluminium alloy cast structure part, product rejection is even resulted in when serious.Magnesium alloy is repaired at present and aluminum alloy surface lacks
Sunken technology is deposited hydraulic performance decline, physical dimension precision after repair and cannot be ensured and the problems such as complex process.
Agitating friction weldering is melted because there is peak temperature in welding process to be less than for which as a kind of new solid phase joining technique
Point, got over the advantages of pore, slag inclusion and crackle are produced when melting welding can be avoided to repair, the mechanical property of structural member can be effectively improved
It is used for the reparation to defect of metallic member to get over.
Agitating friction weldering repairing defect of metallic member is used, the regular keyhole defect of shape matching is mostly repaired at present, to magnesium
The shapes such as surface produces in alloy and aluminium alloy casting process pore, slag inclusion and crackle are irregular and have the long body of certain length
Product type defect there is no ripe effectively restorative procedure at present.
A kind of stirring friction-welding technique method of VCP, main pin disclosed in CN103962715 A patent documentations
The wide arc gap problem caused to the scale error that sheet fabrication is caused, proposes VCP agitating friction weldering, using in gap digit
It is the welding method repaired using agitating friction weldering to put addition compensating material, but as Liang Ge circle occurs in joint location
Face, causes welding forming difficult and boundary defect easily occurs.
The disclosed method for repairing crack based on agitating friction of CN103212778A patent documentations, is simply stirred using needleless
Head repairs the defect of metal material near surface, fails to realize the repairing along sheet material depth direction, and hardware is repaired area and can be gone out
Existing thickness thinning phenomenon, causes stress concentration, joint anti-fatigue life to reduce.
The content of the invention
For the problem that above-mentioned prior art is present, it is an object of the invention to provide one kind repairs metal with agitating friction weldering
The method of long volume flaw in component.
The method for repairing long volume flaw in hardware with agitating friction weldering that the present invention is provided, including following step
Suddenly：
Step 1, long volume flaw irregular in hardware to be repaired is carried out digging row, form regular strip
Hook and slot, fills homogeneity or dissimilar metal in strip hook and slot；
Step 2, the hardware of step 1 is placed on backing plate and is fixed, make area to be repaired be the level of state；
Step 3, by agitating friction welding filler metal is fixed in the strip hook and slot of hardware；
1.2～3 times of a diameter of strip hook and slot width of the shaft shoulder of agitating friction welding needleless stirring-head used；Needleless
The bottom surface of stirring-head has six spiral arc grooves, the radius of curvature of six spiral arc grooves, arc length, width and depth to be respectively nothing
0.7 times, 0.5 times, 0.1 times and 0.05 times of pin stirring-head diameter；
From the beginning of the front end that needleless stirring-head repairs area from hardware, with 50～10000 revs/min of rotational speed, while
To prick under 0.1～10mm/ point of speed, (occurrence of rotating speed and lower bundle speed is according to filling for 0.1～0.3mm to penetrate depth
The size of metal determines)；When penetrating depth and reaching design load, needleless stirring-head stopped in the case where rotation is continued and 1～
100s, makes the hardware material softening of filler metal herein and strip hook and slot periphery, the two relation that forms a fixed connection；
Then needleless stirring-head with the speed (occurrence of the speed is determined according to the size of filler metal) of 30～1000mm/ point along
The moving towards of area to be repaired moves forward (in moving process maintenance rotation), until till the rear end for moving to reparation area,
Complete the fixation of filler metal；
Step 4, complete the fixation of filler metal after, the stationary shaft used the stirring-head with mixing needle instead and coordinate with which
Shoulder, is stirred friction welding to filler metal and hardware under ultrasonic vibration installation auxiliary；
Width and depth determination of the length and diameter of mixing needle according to strip hook and slot, the internal diameter and external diameter of the static shaft shoulder
0.1～0.5mm bigger than the diameter of mixing needle and 5～10mm respectively；The parameter selection range of the ultrasound wave of ultrasonic vibration installation is,
Power is 600～2000W, and amplitude is 15～55 μm；
From the beginning of the front end that mixing needle repairs area from hardware, with 50～10000 revs/min of rotational speed, while with 0.1
Prick under the speed of～10mm/ point, after bottom surface and the sheet material upper surface of the static shaft shoulder, mixing needle continue it is lower prick 0.1～
0.2mm, then keeps rotating and stopping 1-1000s, makes material softening；In whole repair process, the static shaft shoulder is not rotated；It is super
The ultrasonic amplitude transformer of sonic vibration device is contacted with the upper surface of hardware area to be repaired both sides, adjusts ultrasonic amplitude transformer
Angle, makes supersonic vibration reach optimum efficiency, to improve extent of atomic diffusion and the smelting of filler metal and hardware interface
Gold is combined；Then mixing needle is with 10～1000mm/ point of speed (occurrence of the speed is determined according to the size of filler metal)
Along area to be repaired move towards move forward (in moving process mixing needle maintenance rotation), ultrasonic amplitude transformer follows stirring
Pin is gone together, and till the rear end for repairing area is moved to, completes filler metal and welds with hardware agitating friction；
Step 5, complete filler metal and the welding of hardware agitating friction after, lay down mixing needle, supersonic vibration with 1～
100mm/min speed carries out ultrasound and vibrates again, repair area's joint internal residual to eliminate from the rear end forward end movement for repairing area
Stress.
Beneficial effects of the present invention：
1st, the present invention by the defects such as hardware crackle, loose or component segregation carry out dig row formed vertical bar type lack
Fall into, and agitating friction weldering is carried out after filling homogeneity or dissimilar metal, it is possible to resolve the such long volume flaw reparation of hardware
Technical barrier.
2nd, during reparation, can be strengthened between packing material and parent material interface by repairing the supersonic vibration of area both sides
Atoms permeating and material flowing, reduce the generation of defect, and refining grain size increases and repairs area's performance；Can also eliminate simultaneously and repair
The internal stress in multiple area.
3rd, in repair process, the static shaft shoulder does not rotate, and can play suppression plastifying material and overflow reparation area, makes reparation area surface
Effect smooth and that reparation area's thickness is not thinning；Additionally, the static shaft shoulder is contacted with the metal component surface for repairing area, it can absorb big
The heat of amount, is conducive to reducing and repairs crystallite dimension in area, improve and repair area's performance.
4th, the bottom surface that the present invention is used has the needleless stirring-head of six spiral arc grooves and bottom surface to be plane or have annular
Traditional stirring-head of groove is compared, and is produced can material and preferably be flowed, can not only increase the metallurgical binding effect at interface, and
The reparation depth of local material can also be expanded, filler metal fixation preferably is made.
6th, the type of reasonable selection dissimilar metal when filler metal is dissimilar metal, can be passed through, different reparation effects are played
Really.For example, select than the low-melting dissimilar metal of hardware to be repaired, be capable of achieving the low temperature reparation of structural member；Selection intensity
The dissimilar metal higher than hardware to be repaired with hardness, can play invigoration effect to repairing area.
Description of the drawings
Fig. 1 is the shoulder face schematic diagram of the needleless stirring-head that the present invention is used；
Fig. 2 is that stirring-head of the present invention with mixing needle and the static shaft shoulder coordinated with which are aided in ultrasonic vibration installation
Under the schematic diagram of friction welding is stirred to filler metal and hardware；
Fig. 3 is the implementation process of the present invention with reference to figure.
In figure：1. needleless stirring-head, 2. carries the stirring-head of mixing needle, 3. the static shaft shoulder, and 4. ultrasonic transducer, 5. ultrasonic
Horn, 6. hardware, 7. filler metal, 8. cast member internal flaw, 9. strip groove.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The present embodiment is to be repaired in Al-alloy metal component shown in Fig. 3 (a) 6 to be made up of pore and crackle with agitating friction weldering
Cast member internal flaw 8.Its operating procedure is as follows：
Step 1, digging row is carried out to the pore and crackle in hardware 6, form the strip groove 9 as shown in Fig. 3 (b)
(section is П shapes), the width and depth of strip groove are respectively 3mm and 2mm；Then will with hardware homogeneity, size with
Groove identical filler metal 7 is filled in (as shown in Figure 2) in strip groove；
Step 2, the hardware of step 1 is placed on backing plate, hardware is repaiied using multiple cushion blocks (not shown)
Multiple area's leveling, is then fixed；
Step 3, by agitating friction welding filler metal is fixed in the strip hook and slot of hardware；
As shown in figure 1, the shaft shoulder diameter d of agitating friction welding needleless stirring-head 1 used is 10mm；Needleless stirring-head
There are six spiral arc grooves bottom surface, and radius of curvature ρ of six spiral arc grooves, arc length L, width b are respectively 7mm, 5mm, 1mm,
Depth is 0.5mm；As shown in Fig. 3 (c), from the beginning of the front end that needleless stirring-head repairs area from hardware, with 1500 revs/min turn
Speed is rotated, while to prick under the speed of 1mm/ point, when penetrating depth and reaching 0.1mm, needleless stirring-head is continuing the situation of rotation
Lower stop 20s, makes the hardware material softening of filler metal herein and strip hook and slot periphery, and the two forms a fixed connection
Relation；Then needleless stirring-head repairs area up to moving to 50mm/ point of speed (maintenance rotation in moving process)
Till rear end, the fixation of filler metal is completed；
Step 4, complete the fixation of filler metal after, the stationary shaft used the stirring-head 2 with mixing needle instead and coordinate with which
Shoulder 3, is stirred friction welding to filler metal and hardware under ultrasonic vibration installation auxiliary；As shown in Fig. 2 mixing needle
Length be 2.7mm, a diameter of 3mm, the internal diameter of the static shaft shoulder are 3.5mm, and external diameter is 13mm；Ultrasonic vibration installation is sent out by ultrasound
Raw device (not shown), ultrasonic transducer 4 and ultrasonic amplitude transformer 5 are constituted, and the parameter of ultrasound wave is：Power 1600W, 32 μm of amplitude；
As shown in Fig. 3 (d), from the beginning of the front end that mixing needle repairs area from hardware, with 1500 revs/min of rotational speed,
Simultaneously to prick under 1mm/ point of speed, behind the bottom surface of the static shaft shoulder and sheet material upper surface, mixing needle continues lower bundle
After 0.2mm, continue to rotate and stop 50s, make material softening；In whole repair process, the static shaft shoulder is not rotated, supersonic vibration dress
The ultrasonic amplitude transformer put is contacted with the upper surface of hardware area to be repaired both sides, adjusts ultrasonic amplitude transformer so as to water
It is in 60 ° of angles between plane, makes supersonic vibration reach optimum efficiency；Then mixing needle with the speed of 50mm/ point along to be repaired
The moving towards of region moves forward (in moving process mixing needle maintenance rotation), and ultrasonic amplitude transformer follows mixing needle to go together, directly
To the rear end in reparation area is moved to, complete filler metal and weld with hardware agitating friction；
Step 5, complete filler metal and hardware agitating friction welding after, lay down mixing needle, supersonic vibration is with 5mm/
The speed of min carries out ultrasound and vibrates again from the rear end forward end movement for repairing area, should to eliminate reparation area joint internal residual
Power.
Claims (1)
1. it is a kind of with agitating friction weldering repair hardware in long volume flaw method, it is characterised in that including following step
Suddenly：
Step 1, long volume flaw irregular in hardware to be repaired (6) is carried out digging row, form regular strip
Hook and slot (9), fills homogeneity or dissimilar metal in strip hook and slot；
Step 2, the hardware of step 1 is placed on backing plate and is fixed, make area to be repaired be the level of state；
Step 3, by agitating friction welding filler metal is fixed in the strip hook and slot of hardware；
1.2～3 times of a diameter of strip hook and slot width of the shaft shoulder of agitating friction welding needleless stirring-head (1) used；Needleless
The bottom surface of stirring-head has six spiral arc grooves, the radius of curvature of six spiral arc grooves, arc length, width and depth to be respectively nothing
0.7 times, 0.5 times, 0.1 times and 0.05 times of pin stirring-head diameter；
From the beginning of the front end that needleless stirring-head repairs area from hardware, with 50～10000 revs/min of rotational speed, while with 0.1
Prick under～10mm/ point of speed, depth is penetrated for 0.1～0.3mm；When penetrating depth and reaching design load, needleless stirring-head after
Stop and 1～100s in the case of continuous rotation, make the hardware material softer of filler metal herein and strip hook and slot periphery
Change, the two relation that forms a fixed connection；Then needleless stirring-head is with 30～1000mm/ point of speed walking along area to be repaired
To forward movement, till the rear end for repairing area is moved to, the fixation of filler metal is completed；
Step 4, complete the fixation of filler metal after, the static shaft shoulder used the stirring-head with mixing needle (2) instead and coordinate with which
(3) friction welding is stirred to filler metal and hardware under ultrasonic vibration installation auxiliary,；
The length and diameter of mixing needle determines that according to the width and depth of strip hook and slot the internal diameter of the static shaft shoulder and external diameter are distinguished
0.1～0.5mm bigger than the diameter of mixing needle and 5～10mm；The parameter selection range of the ultrasound wave of ultrasonic vibration installation is, power
For 600～2000W, amplitude is 15～55 μm；
From the beginning of the front end that mixing needle repairs area from hardware, with 50～10000 revs/min of rotational speed, while with 0.1～
Prick under the speed of 10mm/ point, after bottom surface and the sheet material upper surface of the static shaft shoulder, mixing needle continue it is lower prick 0.1～
0.2mm, then keeps rotating and stopping 1-1000s, makes material softening；In whole repair process, the static shaft shoulder is not rotated；It is super
The ultrasonic amplitude transformer (5) of sonic vibration device is contacted with the upper surface of hardware area to be repaired both sides, adjusts ultrasonic amplitude of fluctuation
The angle of bar, makes supersonic vibration reach optimum efficiency, to improve the extent of atomic diffusion of filler metal and hardware interface
And metallurgical binding；Then mixing needle with the speed of 10～1000mm/ point along area to be repaired move towards move forward, ultrasound becomes
Width bar follows mixing needle to go together, and till the rear end for repairing area is moved to, completes filler metal and hardware agitating friction
Welding；
Step 5, complete filler metal and hardware agitating friction welding after, lay down mixing needle, supersonic vibration is with 1～100mm/
Min speed carries out ultrasound and vibrates again, repair area's joint internal residual stress to eliminate from the rear end forward end movement for repairing area.
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| CN201710057732.8A CN106583916B (en) | 2017-01-23 | 2017-01-23 | A method of long volume flaw in metal component is answered with agitating friction repair welding |
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|---|---|---|---|
| CN201710057732.8A CN106583916B (en) | 2017-01-23 | 2017-01-23 | A method of long volume flaw in metal component is answered with agitating friction repair welding |
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| CN106583916B CN106583916B (en) | 2018-11-23 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161213A (en) * | 2018-03-15 | 2018-06-15 | 大连理工大学 | A kind of novel agitating friction repair-welding device and method |
| CN109175671A (en) * | 2018-10-11 | 2019-01-11 | 南京中车浦镇城轨车辆有限责任公司 | A kind of agitating friction weldering defect repair and remove deburring integral method |
| CN109822289A (en) * | 2018-06-12 | 2019-05-31 | 柳州钢铁股份有限公司 | Extend the processing renovation technique in bell-type annealer coil bases bearing plate service life |
| CN109877443A (en) * | 2019-03-27 | 2019-06-14 | 榆林学院 | A kind of AZ31 magnesium alloy sheet aclinal friction stir welding method and stirring-head |
| CN109967855A (en) * | 2019-03-20 | 2019-07-05 | 哈尔滨工业大学 | A kind of inhibition weld seam is thinned and thickens the friction stir welding method of weld seam |
| CN110170739A (en) * | 2019-06-19 | 2019-08-27 | 南京航空航天大学 | A kind of structure hole based on agitating friction connection remanufactures and intensifying method |
| CN110369858A (en) * | 2019-07-25 | 2019-10-25 | 沈阳航空航天大学 | A kind of agitating friction device and method for cylindrical structure inner wall defect reparation |
| CN110640294A (en) * | 2019-09-26 | 2020-01-03 | 沈阳航空航天大学 | Device and method for friction stir welding radial additive manufacturing |
| CN110653480A (en) * | 2019-09-26 | 2020-01-07 | 沈阳航空航天大学 | Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding |
| CN112589255A (en) * | 2020-11-25 | 2021-04-02 | 南京工业职业技术大学 | Multi-functional friction stir welding soldered connection of easily dismantling |
| CN114682989A (en) * | 2022-03-14 | 2022-07-01 | 航天工程装备（苏州）有限公司 | Method and device for repairing casting in solid state |
| CN116352248A (en) * | 2023-04-13 | 2023-06-30 | 兰州理工大学 | Method for preparing modified layer on surface of magnesium alloy and magnesium alloy |
| WO2023129018A1 (en) * | 2021-12-31 | 2023-07-06 | Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Vibrated compress member used in welding process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161213A (en) * | 2018-03-15 | 2018-06-15 | 大连理工大学 | A kind of novel agitating friction repair-welding device and method |
| CN109822289A (en) * | 2018-06-12 | 2019-05-31 | 柳州钢铁股份有限公司 | Extend the processing renovation technique in bell-type annealer coil bases bearing plate service life |
| CN109175671A (en) * | 2018-10-11 | 2019-01-11 | 南京中车浦镇城轨车辆有限责任公司 | A kind of agitating friction weldering defect repair and remove deburring integral method |
| CN109967855A (en) * | 2019-03-20 | 2019-07-05 | 哈尔滨工业大学 | A kind of inhibition weld seam is thinned and thickens the friction stir welding method of weld seam |
| CN109877443A (en) * | 2019-03-27 | 2019-06-14 | 榆林学院 | A kind of AZ31 magnesium alloy sheet aclinal friction stir welding method and stirring-head |
| 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 |
| CN110170739A (en) * | 2019-06-19 | 2019-08-27 | 南京航空航天大学 | A kind of structure hole based on agitating friction connection remanufactures and intensifying method |
| CN110369858B (en) * | 2019-07-25 | 2021-05-04 | 沈阳航空航天大学 | Method for repairing defects of inner wall of cylindrical structure |
| CN110369858A (en) * | 2019-07-25 | 2019-10-25 | 沈阳航空航天大学 | A kind of agitating friction device and method for cylindrical structure inner wall defect reparation |
| CN110653480A (en) * | 2019-09-26 | 2020-01-07 | 沈阳航空航天大学 | Device and method for repairing flange plate with out-of-tolerance aperture by friction stir welding |
| CN110640294A (en) * | 2019-09-26 | 2020-01-03 | 沈阳航空航天大学 | Device and method for friction stir welding radial additive manufacturing |
| CN110640294B (en) * | 2019-09-26 | 2021-04-02 | 沈阳航空航天大学 | Device and method for friction stir welding radial additive manufacturing |
| CN112589255A (en) * | 2020-11-25 | 2021-04-02 | 南京工业职业技术大学 | Multi-functional friction stir welding soldered connection of easily dismantling |
| WO2023129018A1 (en) * | 2021-12-31 | 2023-07-06 | Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Vibrated compress member used in welding process |
| CN114682989A (en) * | 2022-03-14 | 2022-07-01 | 航天工程装备（苏州）有限公司 | Method and device for repairing casting in solid state |
| CN116352248A (en) * | 2023-04-13 | 2023-06-30 | 兰州理工大学 | Method for preparing modified layer on surface of magnesium alloy and magnesium alloy |
| CN116352248B (en) * | 2023-04-13 | 2023-11-03 | 兰州理工大学 | Method for preparing modified layer on surface of magnesium alloy and magnesium alloy |
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