CN107931824A - Agitating friction mounted welder with refrigerating function - Google Patents
Agitating friction mounted welder with refrigerating function Download PDFInfo
- Publication number
- CN107931824A CN107931824A CN201711216613.9A CN201711216613A CN107931824A CN 107931824 A CN107931824 A CN 107931824A CN 201711216613 A CN201711216613 A CN 201711216613A CN 107931824 A CN107931824 A CN 107931824A
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- China
- Prior art keywords
- base
- workpiece
- agitating friction
- refrigerating function
- mounted welder
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Classifications
-
- 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
- B23K20/126—Workpiece support, i.e. backing or clamping
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention provides a kind of agitating friction mounted welder with refrigerating function, including base, the workpiece rest area for installing workpiece to be welded is provided with base, lateral hold-down mechanism is respectively arranged with positioned at workpiece rest area left and right sides, end hold-down mechanism is respectively arranged with positioned at workpiece placement region front and back on the base on base；Multiple longitudinal pressing mechanisms for workpiece pressing are additionally provided with the base；The chassis interior is provided with the cooling water channel cooled down for being passed through coolant to base.The present invention, is fixed easy to the installation of left and right workpiece to be welded on fixture, and by left and right side positioning, front and back end positions and the compression of longitudinal direction, ensures the stability of workpiece in welding process.After the completion of each stir friction welding seam, cooling water is passed through by water inlet and is cooled down, the heat for making to add up on welding tooling disperses as early as possible.The service life of welding tooling is improved, ensures welding tooling using reliably and with long-term.
Description
Technical field
The invention belongs to agitating friction technical field, is related to a kind of agitating friction mounted welder with refrigerating function.
Background technology
Agitating friction weldering is a kind of Solid-phase welding technology, is particularly suitable for light-alloy welding.Compared with conventional fused weldering, stir
The defects of friction welding (FW) is not allowed to be also easy to produce hydrogen blistering, slag inclusion, fire check, large deformation in welding process is mixed, and can realize difficult weldering
The connection of material.Therefore agitating friction weldering is known as " the another revolutionary welding technique of item after Laser Welding ".Its work
Principle is：Mixing needle is inserted into workpiece to be welded by high-speed rotating stirring-head, when workpiece to be welded and the stirring-head shaft shoulder are tight
After thickly contacting, stirring-head is relatively moved along welding direction and workpiece；Severe friction between stirring-head and workpiece makes welding
Temperature quickly raises, and hot plastic state is presented in weld metal zone metal, is formed and caused under the traction, stirring and extruding of mixing needle and the shaft shoulder
Close, reliable weld seam.To ensure the stability of workpiece in the quality and welding process of friction stir weld, it is necessary to make special
Fixture workpiece is rigidly fixed.
Matching requirements are higher before agitating friction welding butt welding, to plate misalignment, interface gap and weld seam centering degree etc.
There are more strict requirements.Therefore, need to make special frock clamp during agitating friction weldering and workpiece is rigidly fixed.
Back backing plate is mainly used in welding process from back support weld seam, ensures that weld seam does not occur in stir friction welding process
Deformation, it is ensured that welding is smoothed out.At present, back backing plate is used in the agitating friction welding in industrial applications, is not all assembled
Cooling device, have ignored the cooling problem of back backing plate, and the service life and long-term reliability to welding tooling produce important shadow
Ring.
The content of the invention
In view of the above deficiencies of the prior art, it is an object of the invention to provide the agitating friction with refrigerating function
Mounted welder, the installation easy to agitating friction weldering workpiece are fixed, and improve the service life and long-term reliability of welding tooling.
In order to achieve the above objects and other related objects, technical solution of the present invention is as follows：
A kind of agitating friction mounted welder with refrigerating function, including base, are provided with the base and are treated for installation
The workpiece rest area of welding workpiece, is respectively arranged with lateral hold-down mechanism, institute on the base positioned at workpiece rest area left and right sides
State and be respectively arranged with end hold-down mechanism positioned at workpiece placement region front and back on base；It is additionally provided with the base multiple
Longitudinal pressing mechanism for workpiece pressing；The chassis interior be provided with for be passed through coolant base is cooled down it is cold
But water channel.
The present invention, is fixed easy to the installation of left and right workpiece to be welded on fixture, fixed by left and right side positioning, front and back end
Position and the compression of longitudinal direction, ensure the stability of workpiece in welding process, improve welding quality.In order to improve welding effect,
Agitating friction weldering is tapped into during row, without cooling.After the completion of each stir friction welding seam, it is passed through by water inlet
Cooling water is cooled down, and the heat for making to add up on welding tooling disperses as early as possible.The service life of welding tooling is improved, ensures welding
Frock is using reliably and with long-term.
Further, the cooling water channel is provided with water inlet and water outlet close to the back side of base, the base side.
Further, multiple mounting holes being used for platen installation fixation are provided with the base.It is easy to and machine
Bed workbench connection is fixed.
Further, the base back surface is provided with the positioning key for being positioned with Installing machine tool.During easy to be connected with lathe
Positioning.
Further, the relative distance between two lateral hold-down mechanisms is adjustable.The structure can adapt to different in width
The clamping of workpiece is fixed.
Further, the lateral hold-down mechanism includes support plate, side guide, adjusting bolt and the first hold-down bolt, described
Support plate is installed on base side, and the adjusting bolt is against the side guide end, the side guide through the support plate
On be provided with the first adjustment hole in left-right direction, first hold-down bolt vertically passes through first adjustment hole and base, use
Locked in by side guide.
Further, the side guide and corresponding adjusting bolt are arranged as multigroup along welding direction.From multiple positions to work
Part is compressed, and ensures the stability of clamping.
Further, workpiece rest area left and right sides is respectively arranged with multigroup longitudinal pressing mechanism, multigroup longitudinal direction compacting machine
Structure arranges along the longitudinal direction, and the longitudinal pressing mechanism includes briquetting and fastening bolt component, on the briquetting in left-right direction
The second adjustment hole is provided with, the fastening bolt component vertically passes through second adjustment hole and base, for briquetting to be locked.
The longitudinal pressing mechanism of left and right sides, is respectively used to compress left and right workpiece, and realizes that multiple spot compresses in welding direction,
Ensure that clamping is stablized, in addition, can adjust the position of briquetting left and right directions by the second adjustment hole, improve its adaptability.
Further, the end hold-down mechanism includes the stop part for being removably mounted on base front and rear part.
Further, the front and rear side on the base positioned at workpiece rest area offers mounting groove in left-right direction respectively, institute
It is the square key being removably installed by bolt in mounting groove to state stop part.
Detachable connection, pulls down stop part before loading, avoids producing interference, workpiece installs stop part pair again after loading
Workpiece front and back end positions；In addition detachable connection can replace corresponding stop part according to different workpieces, pass through mounting groove pair
Stop part is installed and fixed.
The beneficial effects of the invention are as follows：The present invention, fixes easy to the installation of left and right workpiece to be welded on fixture, passes through
The compression of left and right side positioning, front and back end positioning and longitudinal direction, ensures the stability of workpiece in welding process, improves welding quality.
Realize that multiple spot compresses in welding direction, ensure that clamping is stablized, in addition, adjustable side is to hold-down mechanism and longitudinal pressing mechanism
Position, the clamping that can adapt to different in width workpiece are fixed.
Brief description of the drawings
Fig. 1 is the stereogram of the embodiment of the present invention 1；
Fig. 2 is the front view of the embodiment of the present invention 1；
Fig. 3 is the schematic rear view of Fig. 1；
Fig. 4 is the front view of base in the embodiment of the present invention 1；
Fig. 5 is the rearview of base in the embodiment of the present invention 1；
Fig. 6 is A-A direction views in Fig. 4；
Fig. 7 is the rearview of base in the embodiment of the present invention 2；
Fig. 8 be 2 base A-A of the embodiment of the present invention to sectional view.
Piece mark explanation：
1- bases；1a- upper plates；1b- lower plates；1c- lower covers；11- mounting holes；12- mounting grooves；The second screw holes of 13-；
14- fixing grooves；The first screw holes of 15-；The 3rd screw holes of 16-；21- support plates；22- side guides；23- adjusting bolts；24- first is compressed
Bolt；The first adjustment holes of 25-；31- briquettings；32- fastening bolt components；The second adjustment holes of 33-；4- stop parts；41- bolts；5-
Positioning key；6- cooling water channels；61- water inlets；62- water outlets；The left workpiece of 100-；The right workpiece of 200-.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of agitating friction mounted welder with refrigerating function, including base 1, are set on base 1
It is useful for installing the workpiece rest area of workpiece to be welded, wherein workpiece to be welded includes left workpiece 100 and right workpiece 200, it is described
Lateral hold-down mechanism is respectively arranged with positioned at workpiece rest area left and right sides on base 1, is compressed for respectively from side to centre left
Workpiece 100 and right workpiece 200, are respectively arranged with end hold-down mechanism on the base 1 positioned at workpiece placement region front and back, use
In compression and fixed workpiece front and back end；Multiple longitudinal pressing mechanisms for workpiece pressing are additionally provided with base 1, so that work
Part is pressed on base 1.
By said structure, fix easy to the installation of left and right workpiece 200 to be welded on fixture, determined by left and right sides
The compression of position, front and back end positioning and longitudinal direction, ensures the stability of workpiece in welding process, improves welding quality.
Further, cooling water channel 6 is internally provided with base 1, for being passed through coolant during weld interval twice
Base is cooled down.To ensure cooling effect, cooling water channel 6 is U-shaped or snakelike arrangement, to cover whole base 1 as far as possible.
As shown in Figure 5 and Figure 6, base side is provided with water inlet 61 and water outlet 62 in this example, is specifically arranged at bottom
1 front end of seat or rear end, base 1 are formed by connecting by upper plate 1a and lower plate 1b, are set on wherein upper plate 1a and lower plate 1b
There is corresponding groove, groove forms the cooling water channel 6.
To avoid cooling water channel 6 from impacting the structural strength of base 1, cooling water channel 6 may be configured as away from base 1 just
Face, and close to the position at 1 back side of base.Cooling water channel 6 avoids position while welding as far as possible at the same time.
Preferably, multiple mounting holes 11 being used for platen installation fixation are provided with base 1.It is easy to and machine
Bed workbench connection is fixed.For ease of processing and installation, mounting hole 11 is arranged on the rear ends of base 1.Other embodiment
In mounting hole 11 can also be set at the middle part of base 1.
Preferably, the relative distance between two lateral hold-down mechanisms is adjustable.The structure can adapt to different width
The clamping of degree workpiece is fixed.
Specifically, lateral hold-down mechanism includes support plate 21, side guide 22,23 and first hold-down bolt 24 of adjusting bolt,
Support plate 21 is installed on 1 side of base, and adjusting bolt 23 is against described 22 one end of side guide, side guide through the support plate 21
22 other ends are against side surface of workpiece.For ease of adjusting, the first adjustment hole 25, base 1 are provided with left-right direction on side guide 22
On be provided with and vertically pass through first adjustment hole with 24 corresponding first screw hole 15 of the first hold-down bolt, the first hold-down bolt 24
25 and first screw hole 15, for side guide 22 to be locked at base 1.
Preferably, the side guide 22 and corresponding adjusting bolt 23 be arranged as along welding direction it is multigroup.From multiple portions
Position compresses workpiece, ensures the stability of clamping.
Preferably, workpiece rest area left and right sides is respectively arranged with multigroup longitudinal pressing mechanism, multigroup longitudinal direction compresses
Mechanism is evenly arranged along the longitudinal direction, and longitudinal pressing mechanism includes briquetting 31 and fastening bolt component 32, along left and right on briquetting 31
Direction is provided with the second adjustment hole 33, and second screw hole 13 corresponding with fastening bolt component 32, the fastening are provided with base 1
Bolt assembly 32 vertically passes through 33 and second screw hole 13 of the second adjustment hole, and briquetting 31 is locked on base 1.
The longitudinal pressing mechanism of left and right sides, is respectively used to compress left and right workpiece 200, and press is realized in welding direction more
Tightly, ensure that clamping is stablized, in addition, can adjust the position of 31 left and right directions of briquetting by the second adjustment hole 33, improve its adaptability.
Preferably, the end hold-down mechanism includes the stop part 4 for being removably mounted on 1 front and rear part of base.
Specifically as shown in Figure 1, Figure 2 and Figure 4, the front and rear side of workpiece rest area is located on the base 1 respectively along right and left
To mounting groove 12 is offered, stop part 4 is square key, and 12 bottom of mounting groove offers multiple 3rd screw holes 16 in left-right direction, side
Correspondence offers mounting hole on key, and the square key is removably installed in mounting groove 12 by bolt 41, and square key can be one
Or two.It is two in this example, has interval between two square keys, to avoid the position while welding of plumb joint.
Detachable connection, pulls down stop part 4 before loading, avoids producing interference, workpiece installs stop part 4 again after loading
Workpiece front and back end is positioned；In addition detachable connection can replace corresponding stop part 4 according to different workpieces, pass through mounting groove
12 pairs of stop parts 4 are installed and fixed.
Positioning when as shown in Figure 3, Figure 5 and Figure 6, for ease of being connected with lathe, 1 back side of base, which is provided with, to be used for and lathe
The positioning key 5 of positioning is installed.Specifically, wherein positioning key 5 is two, is separately positioned on the front and rear part of base 1.In this example, bottom
1 back side front and rear part of seat offers the fixing groove 14 for installing positioning key 5, and positioning key 5 is installed on the fixing groove 14 by screw
It is interior.
Embodiment 2
As shown in Figure 7 and Figure 8, the difference with embodiment 1 is, cooling water channel 6 is set in left-right direction in this example,
Water inlet 61 and water outlet 62 are arranged on 1 left or right side of base；Wherein base 1 by upper plate 1a and is arranged on upper plate 1a bottoms
The lower cover 1c in face is formed, and cooling water channel 6 is opened in upper plate 1a bottom surfaces, and is closed by lower cover 1c.Remaining structure is with implementing
Example 1 is identical.
To sum up, it is of the invention, fixed easy to the installation of left and right workpiece to be welded on fixture, it is preceding by left and right side positioning
Rear alignment and the compression of longitudinal direction, ensure the stability of workpiece in welding process, improve welding quality.It is real in welding direction
Existing multiple spot compresses, and ensures that clamping is stablized, in addition, pressing plate and backup plate can all be moved according to workpiece size, it is convenient into
The agitating friction welding of row various sizes, variously-shaped workpiece on two dimensional surface.Back designs have positioning key, conveniently during installation
Precise positioning, improves installation effectiveness.The surrounding of workpiece to be welded can rigidly fix, and improve welding quality.
In addition, in order to improve the service life of welding tooling, base 1 is laggard in roughing (reserved about 1mm processing capacities)
Row modifier treatment, is then finished again, and carries out surface blackening processing.In order to ensure safe operation, acute angle are blunt.Base
1 material is 45 steel, Q235,20Cr, 65Mn etc..
Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the present invention
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed spirit with
All equivalent modifications completed under technological thought or change, should be covered by the claim of the present invention.
Claims (10)
1. a kind of agitating friction mounted welder with refrigerating function, including base, it is provided with the base to be welded for installing
Connect the workpiece rest area of workpiece, it is characterised in that：On the base lateral pressure is respectively arranged with positioned at workpiece rest area left and right sides
Tight mechanism, is respectively arranged with end hold-down mechanism on the base positioned at workpiece placement region front and back；On the base also
Be provided with multiple longitudinal pressing mechanisms for workpiece pressing, the chassis interior be provided with for be passed through coolant to base into
The cooling water channel of row cooling.
2. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：The cooling water channel
Close to the back side of base, the base side is provided with water inlet and water outlet.
3. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：Set on the base
It is equipped with multiple mounting holes being used for platen installation fixation.
4. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：The base back surface
It is provided with the positioning key for being positioned with Installing machine tool.
5. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：Two described lateral
Relative distance between hold-down mechanism is adjustable.
6. the agitating friction mounted welder according to claim 5 with refrigerating function, it is characterised in that：The lateral compression
Mechanism includes support plate, side guide, adjusting bolt and the first hold-down bolt, and the support plate is installed on base side, the tune
Section bolt is against the side guide end through the support plate, and the first adjusting is provided with left-right direction on the side guide
Hole, first hold-down bolt vertically passes through first adjustment hole and base, for side guide to be locked.
7. the agitating friction mounted welder according to claim 6 with refrigerating function, it is characterised in that：The side guide and
Corresponding adjusting bolt is arranged as multigroup along welding direction.
8. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：The workpiece is placed
Area's left and right sides is respectively arranged with multigroup longitudinal pressing mechanism, and multigroup longitudinal pressing mechanism is arranged along the longitudinal direction, the longitudinal direction pressure
Tight mechanism includes briquetting and fastening bolt component, and the second adjustment hole, the fastening spiral shell are provided with left-right direction on the briquetting
Bolt assembly vertically passes through second adjustment hole and base, for briquetting to be locked.
9. the agitating friction mounted welder according to claim 1 with refrigerating function, it is characterised in that：The end compresses
Mechanism includes being removably mounted on the stop part of base front and rear part.
10. the agitating friction mounted welder according to claim 9 with refrigerating function, it is characterised in that：On the base
Offer mounting groove in left-right direction respectively positioned at the front and rear side of workpiece rest area, the stop part be by bolt removably
Square key in mounting groove is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711216613.9A CN107931824A (en) | 2017-11-28 | 2017-11-28 | Agitating friction mounted welder with refrigerating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711216613.9A CN107931824A (en) | 2017-11-28 | 2017-11-28 | Agitating friction mounted welder with refrigerating function |
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| Publication Number | Publication Date |
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| CN107931824A true CN107931824A (en) | 2018-04-20 |
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ID=61949370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711216613.9A Pending CN107931824A (en) | 2017-11-28 | 2017-11-28 | Agitating friction mounted welder with refrigerating function |
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Cited By (8)
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| CN108655642A (en) * | 2018-05-23 | 2018-10-16 | 合肥宏立至信汽车部件制造有限公司 | Automobile chair frame welding fixture modular construction |
| CN109604808A (en) * | 2018-12-11 | 2019-04-12 | 东北大学 | It is a kind of to apply cooling agitating friction increasing material manufacturing device and method |
| CN110355519A (en) * | 2019-08-20 | 2019-10-22 | 广东利元亨智能装备股份有限公司 | Welding jig |
| CN110614427A (en) * | 2019-09-25 | 2019-12-27 | 浙江工业大学 | Friction stir welding device with double-sided circulating cooling effect |
| CN110802348A (en) * | 2019-11-08 | 2020-02-18 | 扬州市君瑞企业管理有限公司 | Heat dissipation device for repair welding processing of heat-resistant steel casting of steam turbine |
| CN110919271A (en) * | 2019-12-13 | 2020-03-27 | 北京北方车辆集团有限公司 | Friction stir welding tool and method for bottom plate of ventilation window |
| CN111644737A (en) * | 2020-06-22 | 2020-09-11 | 中国船舶重工集团公司第七二五研究所 | Electron beam surface modeling process of low-resistance enhanced heat exchange cold plate |
| CN115351401A (en) * | 2022-08-30 | 2022-11-18 | 鞍钢股份有限公司 | Welding clamping device for drop hammer test sample and using method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655642A (en) * | 2018-05-23 | 2018-10-16 | 合肥宏立至信汽车部件制造有限公司 | Automobile chair frame welding fixture modular construction |
| CN109604808A (en) * | 2018-12-11 | 2019-04-12 | 东北大学 | It is a kind of to apply cooling agitating friction increasing material manufacturing device and method |
| CN109604808B (en) * | 2018-12-11 | 2020-10-09 | 东北大学 | Friction stir material increase manufacturing device and method applying cooling |
| CN110355519A (en) * | 2019-08-20 | 2019-10-22 | 广东利元亨智能装备股份有限公司 | Welding jig |
| CN110614427A (en) * | 2019-09-25 | 2019-12-27 | 浙江工业大学 | Friction stir welding device with double-sided circulating cooling effect |
| CN110802348A (en) * | 2019-11-08 | 2020-02-18 | 扬州市君瑞企业管理有限公司 | Heat dissipation device for repair welding processing of heat-resistant steel casting of steam turbine |
| CN110919271A (en) * | 2019-12-13 | 2020-03-27 | 北京北方车辆集团有限公司 | Friction stir welding tool and method for bottom plate of ventilation window |
| CN111644737A (en) * | 2020-06-22 | 2020-09-11 | 中国船舶重工集团公司第七二五研究所 | Electron beam surface modeling process of low-resistance enhanced heat exchange cold plate |
| CN111644737B (en) * | 2020-06-22 | 2022-04-08 | 中国船舶重工集团公司第七二五研究所 | Electron beam surface modeling process of low-resistance enhanced heat exchange cold plate |
| CN115351401A (en) * | 2022-08-30 | 2022-11-18 | 鞍钢股份有限公司 | Welding clamping device for drop hammer test sample and using method thereof |
| CN115351401B (en) * | 2022-08-30 | 2023-11-10 | 鞍钢股份有限公司 | Welding clamping device for drop hammer test sample and use method thereof |
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