CN205347531U - 7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device - Google Patents
7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device Download PDFInfo
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- CN205347531U CN205347531U CN201620031026.7U CN201620031026U CN205347531U CN 205347531 U CN205347531 U CN 205347531U CN 201620031026 U CN201620031026 U CN 201620031026U CN 205347531 U CN205347531 U CN 205347531U
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 230000032683 aging Effects 0.000 title claims abstract description 27
- 238000005728 strengthening Methods 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910001868 water Inorganic materials 0.000 claims abstract description 59
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 48
- 239000010949 copper Substances 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000010791 quenching Methods 0.000 claims abstract description 40
- 230000000171 quenching effect Effects 0.000 claims abstract description 40
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 36
- 230000006835 compression Effects 0.000 claims description 33
- 238000007906 compression Methods 0.000 claims description 33
- 239000004411 aluminium Substances 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 2
- 235000010210 aluminium Nutrition 0.000 description 22
- 238000000034 method Methods 0.000 description 12
- 239000000470 constituent Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a 7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device belongs to the machining field. Induction heating coil directly over aluminum alloy welded joint weld metal zone and heat affected area, and the heat -insulating shield directly over the induction heating coil, lie in the thermoscope control box on the upper and lower surface in weld metal zone and heat affected area, be located weld metal zone and the heat affected area both sides aluminium alloy plate material water -cooling copper pipe on two surfaces from top to bottom, the outside that is located the fixed water -cooling copper pipe of water -cooling copper outside of tubes side compresses tightly the quick clamping tool that steel sheet and the outside compressed tightly the steel sheet outside, be located the fastening bolt who compresses tightly the steel sheet both ends, be located the quenching sprinkler bead under weld metal zone and heat affected area upper surface both sides and the lower surface, be located the quenching sprinkler bead support frame of aluminum plate both sides. The beneficial effect of the utility model: can dissolve quenching treatment and intensive aging treatment admittedly to weak weld metal zone and the heat affected area of mechanical properties to can improve welded joint's whole mechanical properties.
Description
Technical field
This utility model relates to the device of a kind of bullet train 7xxx system ageing strengthening Strength Aluminum Alloy Welds post weld heat treatment, specifically apply aluminium sheet, quenching water spray head, load coil, the device of a kind of 7xxx system ageing strengthening Strength Aluminum Alloy Welds post weld heat treatment that temperature measurer control chamber, sensing computer heating control case etc. are constituted, belongs to machining class.
Background technology
In recent years, bullet train is because of its energy-conserving and environment-protective and safe and efficient and increasingly become people and go on a journey one of requisite vehicles.For reaching energy-conserving and environment-protective and purpose fast and safely, various light-weighted high-strength aluminum alloy structural members are widely used in bullet train.7xxx line aluminium alloy is ageing strengthening type aluminium alloy, is a kind of high strength alumin ium alloy in high-speed train body material, and this series alloys structural member is generally adopted melting pole gas shielded arc welding (MIG) to be prepared.Owing to the microstructure and property that MIG thermal weld stress amount is big, energy concentration can make welding point weld metal zone and heat affected area changes under the impact of welding hot environment, i.e. the softening of welding point.
The existing method for the strengthening of bullet train welded joints in aluminium alloy postwelding mainly has reinforcement plate reinforcement method, hammering method, supercritical ultrasonics technology etc..Reinforcement plate reinforcement method is only capable of the bulk strength in butt welded seam district a little raising, and the raising for heat affected area intensity is very micro-, and if the too high overall appearance that not only can affect high-speed train body of reinforcement, welding point stress also can be caused to concentrate.Hammering method and supercritical ultrasonics technology are only capable of making the part coarse grain of weld metal zone and heat affected area to refine in the way of physical mechanics or energy, with this purpose reaching to improve strength of welded joint.But 7xxx line aluminium alloy is ageing strengthening type aluminium alloy, and its main augmented form is second-phase strength, rather than the refined crystalline strengthening form of non-heat treated hardening constituent aluminium alloy.Therefore, also extremely limited by the lifting of hammering method and supercritical ultrasonics technology Welded Joints intensity, and hammering method and supercritical ultrasonics technology waste time and energy, industry manufacture in less employing.
This utility model aims to solve the problem that the drawback that 7xxx system ageing strengthening aluminum alloy MIG welding joint postwelding seriously softens, provide the weld metal zone of a kind of Welded Joints and heat affected area carries out the device of local heat treatmet, i.e. a kind of 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment device.This device can make the coarse grain of weld metal zone and heat affected area refine by the mode of local heat treatmet, the thick hardening constituent back dissolving of weld metal zone and heat affected area the tiny hardening constituent of diffusion-precipitation can also be made, thus the mode of realization refined crystalline strengthening and dispersion-strengtherning improves the mechanical property of welding point.
Utility model content
This utility model aims to solve the problem that the problems referred to above, it is provided that the device of a kind of 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment.Its technical scheme adopted is as follows:
This utility model is a kind of 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment device, including the load coil directly over welded joints in aluminium alloy weld metal zone and heat affected area, and the heat-insulating shield directly over load coil, it is positioned at the temperature measurer control chamber in weld metal zone and heat affected area upper and lower surface, it is positioned at weld metal zone and the water-cooled copper on upper and lower two surfaces of both sides, heat affected area aluminum alloy plate materials, it is positioned at outside water-cooled copper to fix the Quick-clamped instrument outside the outer side compression steel plate of water-cooled copper and outer side compression steel plate, it is positioned at the fastening bolt compressing steel plate two ends, it is positioned at the quenching water spray head immediately below weld metal zone and upper surface both sides, heat affected area and lower surface, it is positioned at the quenching water spray head support of aluminium sheet both sides.
Described load coil is laid in the upper surface of weld metal zone and heat affected area with rectangular mode, and load coil introduces from one end of weld metal zone and heat affected area and draws from rectangular centre, and leading-in end and exit are connected on induction heating power；Being surrounded by insulation and thermal insulation material outside load coil, load coil is fixed on the lower surface of bakelite plate, it is simple to withdrawn from time by load coil after heating.
Described temperature measurer control chamber is built-in with thermocouple temperature measurement instrument, its thermocouple paster is close to the upper and lower surface of weld metal zone and the heat affected area carrying out solution treatment or Ageing Treatment, by pyroelectric effect principle the change being monitored temperature by the temperature indicator on outside temperature measurer control chamber.
Described water-cooled copper is positioned at welding point and needs the weld metal zone of heating and the both sides of heat affected area upper and lower surface, water-cooled copper is plane near aluminium sheet side, its material is the red copper with good heat conductive performance, recirculated cooling water it is connected with in water-cooled copper, water-cooled copper one end is the water inlet other end is outlet, and water-cooled copper is close to the upper and lower surface of the aluminium sheet needing cooling.Thermal conductive resin by the cooling effect of recirculated water and copper, aluminum, the mother metal district of cooling position can be cooled down, so just welding point is made back dissolving will to be occurred to grow up because of the high temperature of local heat treatmet without the hardening constituent in heat treated mother metal district, so that the mechanical property in mother metal district is preserved.
Described compression steel plate includes outer side compression steel plate and interior side compression steel plate, it is positioned at the outside of water-cooled copper, whole water cooling plant is constituted with water-cooled copper, whole water cooling plant is fixed on aluminium sheet by outer side compression steel plate, interior side compression steel plate is used for fixing and compresses water-cooled copper, having circular hole on outer side compression steel plate makes the Quick-clamped instrument on outer side compression steel plate internally can apply thrust by side compression steel plate by these circular holes, so that water-cooled copper can closely be adjacent to the upper and lower surface in the mother metal district needing cooling.
Described fastening bolt is positioned at the two ends compressing steel plate, compresses steel plate by upper and lower two nuts by upper and lower two and is fastened to the upper and lower surface of mother metal district cooled region.
Described quenching water spray head includes the first quenching water spray head and the second quenching water spray head, is positioned at immediately below weld metal zone and upper surface both sides, heat affected area and lower surface, inside has normal temperature high voltage water, and spray field can cover the whole upper and lower surface of weld metal zone and heat affected area.After solution treatment, immediately load coil is removed above weld metal zone and heat affected area, then open the switch of quenching water spray head at once, carry out cooling process by the normal-temperature water sprayed.Must note must controlling in 7～25s from the solid solution complete time to high pressure water jets to weld metal zone and the upper and lower surface of heat affected area, in quenching shift time, namely to carry out water hardening process.
Described quenching water spray head support includes the first quenching water spray head support and the second quenching water spray head support, is positioned at aluminium sheet both sides, aluminium sheet is supported and makes aluminium sheet maintenance level.
The beneficial effects of the utility model: a kind of 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment device, on the basis that Welded Joints mother metal Effect on Mechanical Properties is less, weld metal zone and heat affected area that Welded Joints mechanical property is weak carry out postwelding local heat treatmet, the coarse grain being made weld metal zone and heat affecting by local heat treatmet is refined, and after making thick hardening constituent back dissolving, precipitate out the hardening constituent of small and dispersed, thus the mode of realization refined crystalline strengthening and dispersion-strengtherning improves the overall mechanical property of welding point.
Accompanying drawing explanation
Fig. 1: this utility model one 7xxx system's ageing strengthening welded joints in aluminium alloy post weld heat treatment device assembled front view；
Fig. 2: the top view of a kind of 7xxx system of this utility model ageing strengthening welded joints in aluminium alloy post weld heat treatment device；
Symbol description:
1, aluminium sheet bracing frame, 2, aluminium sheet, 3, outer side compression steel plate, 4, water-cooled copper, 5, Quick-clamped instrument, 6, fastening bolt, the 7, first quenching water spray head support, the 8, first quenching water spray head, 9, heat-insulating shield, 10, load coil, 11, feed pipe, 12, thermocouple paster, 13, temperature measurer control chamber, 14, the second quenching water spray head, 15, water pump, 16, weld metal zone, 17, the second quenching water spray head support, 18, sensing computer heating control case, 19, heat affected area, 20, interior side compression steel plate.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-2, specific configuration of the present utility model is described in detail.
This utility model is a kind of 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment device, including the load coil 10 directly over welded joints in aluminium alloy weld metal zone 16 and heat affected area 19, and the heat-insulating shield 9 directly over load coil 10, it is positioned at the temperature measurer control chamber 13 in weld metal zone 16 and heat affected area 19 upper and lower surface, it is positioned at weld metal zone 16 and the water-cooled copper 4 on upper and lower two surfaces of aluminum alloy plate materials, both sides, heat affected area 19, it is positioned at outside water-cooled copper 4 to fix the Quick-clamped instrument 5 outside the outer side compression steel plate 3 of water-cooled copper 4 and outer side compression steel plate 3, it is positioned at the fastening bolt 6 compressing steel plate two ends, it is positioned at the quenching water spray head immediately below weld metal zone 16 and upper surface both sides, heat affected area 19 and lower surface, it is positioned at the quenching water spray head support of aluminium sheet 2 both sides.
Described load coil 10 is laid in weld metal zone 16 and the upper surface of heat affected area 19 with rectangular mode, load coil 10 introduces from one end of weld metal zone 16 and heat affected area 19 and draws from rectangular centre, and leading-in end and exit are connected on induction heating power；Being surrounded by insulation and thermal insulation material outside load coil 10, load coil 10 is fixed on the lower surface of bakelite plate, it is simple to withdrawn from time by load coil 10 after heating.
Described temperature measurer control chamber 13 is built-in with thermocouple temperature measurement instrument, its thermocouple paster 12 is close to the upper and lower surface of the weld metal zone 16 and heat affected area 19 carrying out solution treatment or Ageing Treatment, by pyroelectric effect principle the change being monitored temperature by the temperature indicator on outside temperature measurer control chamber 13.
Described water-cooled copper 4 is positioned at welding point and needs the weld metal zone 16 of heating and the both sides of heat affected area 19 upper and lower surface, water-cooled copper 4 is plane near aluminium sheet side, its material is the red copper with good heat conductive performance, it is connected with recirculated cooling water in water-cooled copper 4, water-cooled copper 4 one end is the water inlet other end is outlet, and water-cooled copper 4 is close to the upper and lower surface of the aluminium sheet 2 needing cooling.Thermal conductive resin by the cooling effect of recirculated water and copper, aluminum, the mother metal district of cooling position can be cooled down, so just welding point is made back dissolving will to be occurred to grow up because of the high temperature of local heat treatmet without the hardening constituent in heat treated mother metal district, so that the mechanical property in mother metal district is preserved.
Described compression steel plate includes outer side compression steel plate 3 and interior side compression steel plate 20, it is positioned at the outside of water-cooled copper 4, whole water cooling plant is constituted with water-cooled copper 4, whole water cooling plant is fixed on aluminium sheet 2 by outer side compression steel plate 3, interior side compression steel plate 20 is used for fixing and compresses water-cooled copper 4, having circular hole on outer side compression steel plate 3 makes the Quick-clamped instrument 5 on outer side compression steel plate 3 internally can apply thrust by side compression steel plate 20 by these circular holes, so that water-cooled copper 4 can closely be adjacent to the upper and lower surface in the mother metal district needing cooling.
Described fastening bolt 6 is positioned at the two ends compressing steel plate, compresses steel plate by upper and lower two nuts by upper and lower two and is fastened to the upper and lower surface of mother metal district cooled region.
Described quenching water spray head includes the first quenching water spray head 8 and the second quenching water spray head 14, it is positioned at immediately below weld metal zone 16 and upper surface both sides, heat affected area 19 and lower surface, inside having normal temperature high voltage water, spray field can cover the whole upper and lower surface of weld metal zone 16 and heat affected area 19.After solution treatment, immediately load coil 10 is removed above weld metal zone 16 and heat affected area 19, then open the switch of quenching water spray head at once, carry out cooling process by the normal-temperature water sprayed.Must note must controlling in 7～25s from the solid solution complete time to high pressure water jets to weld metal zone 16 and the upper and lower surface of heat affected area 19, in quenching shift time, namely to carry out water hardening process.
Described quenching water spray head support includes the first quenching water spray head support 7 and the second quenching water spray head support 17, is positioned at aluminium sheet 2 both sides, aluminium sheet 2 is supported and makes aluminium sheet 2 maintenance level.
When this utility model uses, the mother metal district that in water-cooled copper 4, logical recirculated cooling water is used for not needing heating carries out cooling process；Outer side compression steel plate 3, interior side compression steel plate 20 and Quick-clamped instrument 5 three match, and are used for being pressed to water-cooled copper 4 upper and lower surface of aluminium sheet 2, make water-cooled copper 4 and aluminium sheet 2 surface closely fit；Fastening bolt 6 is used for being fixed in the upper and lower surface of aluminium sheet 2 outer side compression steel plate 3, interior side compression steel plate 20 and water-cooled copper 4；First quenching water spray head 7 and the second quenching water spray head 14 carry out Quenching Treatment for the weld metal zone 16 after solution treatment and heat affected area 19；Heat-insulating shield 9 is used for load coil 10 is fixed and is supported；Temperature measurer control chamber 13 and thermocouple paster 12 are used for the change of displays temperature such that it is able to temperature is monitored；Sensing computer heating control case 18 controls the height of heating-up temperature by controlling faradic size；Water pump 15 and feed pipe 11 are used for supplying water to quenching water spray head.
By way of example this utility model being illustrated above, but this utility model is not limited to above-mentioned specific embodiment, all any changes done based on this utility model or modification belong to the scope that this utility model claims.
Claims (8)
1. a 7xxx system ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: include the load coil directly over welded joints in aluminium alloy weld metal zone and heat affected area, and the heat-insulating shield directly over load coil, it is positioned at the temperature measurer control chamber in weld metal zone and heat affected area upper and lower surface, it is positioned at weld metal zone and the water-cooled copper on upper and lower two surfaces of both sides, heat affected area aluminum alloy plate materials, it is positioned at outside water-cooled copper to fix the Quick-clamped instrument outside the outer side compression steel plate of water-cooled copper and outer side compression steel plate, it is positioned at the fastening bolt compressing steel plate two ends, it is positioned at the quenching water spray head immediately below weld metal zone and upper surface both sides, heat affected area and lower surface, it is positioned at the quenching water spray head support of aluminium sheet both sides.
2. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described load coil is laid in the upper surface of weld metal zone and heat affected area with rectangular mode, load coil introduces from one end of weld metal zone and heat affected area and draws from rectangular centre, and leading-in end and exit are connected on induction heating power；Being surrounded by insulation and thermal insulation material outside load coil, load coil is fixed on the lower surface of bakelite plate, it is simple to withdrawn from time by load coil after heating.
3. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described temperature measurer control chamber is built-in with thermocouple temperature measurement instrument, its thermocouple paster is close to the upper and lower surface of weld metal zone and the heat affected area carrying out solution treatment or Ageing Treatment, by pyroelectric effect principle the change being monitored temperature by the temperature indicator on outside temperature measurer control chamber.
4. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described water-cooled copper is positioned at welding point and needs the weld metal zone of heating and the both sides of heat affected area upper and lower surface, water-cooled copper is plane near aluminium sheet side, its material is the red copper with good heat conductive performance, recirculated cooling water it is connected with in water-cooled copper, water-cooled copper one end is the water inlet other end is outlet, and water-cooled copper is close to the upper and lower surface of the aluminium sheet needing cooling.
5. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described compression steel plate includes outer side compression steel plate and interior side compression steel plate, it is positioned at the outside of water-cooled copper, whole water cooling plant is constituted with water-cooled copper, whole water cooling plant is fixed on aluminium sheet by outer side compression steel plate, and interior side compression steel plate is used for fixing and compresses water-cooled copper.
6. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described fastening bolt is positioned at the two ends compressing steel plate, compress steel plate by upper and lower two nuts by upper and lower two and be fastened to the upper and lower surface of mother metal district cooled region.
7. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described quenching water spray head includes the first quenching water spray head and the second quenching water spray head, be positioned at immediately below weld metal zone and upper surface both sides, heat affected area and lower surface.
8. a kind of 7xxx system according to claim 1 ageing strengthening welded joints in aluminium alloy post weld heat treatment device, it is characterized in that: described quenching water spray head support includes the first quenching water spray head support and the second quenching water spray head support, it is positioned at aluminium sheet both sides, aluminium sheet is supported and makes aluminium sheet maintenance level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031026.7U CN205347531U (en) | 2016-01-13 | 2016-01-13 | 7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031026.7U CN205347531U (en) | 2016-01-13 | 2016-01-13 | 7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device |
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| CN205347531U true CN205347531U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620031026.7U Expired - Fee Related CN205347531U (en) | 2016-01-13 | 2016-01-13 | 7xxx is that ageing strengthening aluminum alloy welded joint welds after heat treatment device |
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| CN (1) | CN205347531U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199289A (en) * | 2017-05-27 | 2017-09-26 | 武汉理工大学 | High-strength aluminum alloy FSW tailor welded bodywork component hot forming firing equipments |
| CN110421287A (en) * | 2019-07-04 | 2019-11-08 | 青岛科技大学 | A kind of the induction heating coalignment and technique of T-type beam welding forming |
| CN112779484A (en) * | 2020-12-25 | 2021-05-11 | 湖南科技大学 | Device and method for improving welding performance of aging-strengthened aluminum alloy |
| CN115725914A (en) * | 2022-11-24 | 2023-03-03 | 中南大学 | Large-scale high-strength aluminum component welding seam pulsation accumulation aging strengthening method and device |
-
2016
- 2016-01-13 CN CN201620031026.7U patent/CN205347531U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199289A (en) * | 2017-05-27 | 2017-09-26 | 武汉理工大学 | High-strength aluminum alloy FSW tailor welded bodywork component hot forming firing equipments |
| CN107199289B (en) * | 2017-05-27 | 2018-11-23 | 武汉理工大学 | High-strength aluminum alloy FSW tailor welded bodywork component hot forming heating equipment |
| CN110421287A (en) * | 2019-07-04 | 2019-11-08 | 青岛科技大学 | A kind of the induction heating coalignment and technique of T-type beam welding forming |
| CN110421287B (en) * | 2019-07-04 | 2021-06-25 | 青岛科技大学 | Induction heating straightening device and process for welding and forming T-shaped beam |
| CN112779484A (en) * | 2020-12-25 | 2021-05-11 | 湖南科技大学 | Device and method for improving welding performance of aging-strengthened aluminum alloy |
| CN115725914A (en) * | 2022-11-24 | 2023-03-03 | 中南大学 | Large-scale high-strength aluminum component welding seam pulsation accumulation aging strengthening method and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170113 |