CN106583717A - Blade powder blank forming device and method adopting spray type powder filling - Google Patents
Blade powder blank forming device and method adopting spray type powder filling Download PDFInfo
- Publication number
- CN106583717A CN106583717A CN201611011805.1A CN201611011805A CN106583717A CN 106583717 A CN106583717 A CN 106583717A CN 201611011805 A CN201611011805 A CN 201611011805A CN 106583717 A CN106583717 A CN 106583717A
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- Prior art keywords
- powder
- blade
- powderject
- drift
- road
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a blade powder blank forming device and method adopting spray type powder filling. The blade powder blank forming device adopting spray type powder filling comprises a mold body. The mold body is provided with a through cavity. The top and bottom of the mold body are provided with a punch pin and an ejector correspondingly, wherein the punch pin and the ejector extend into the cavity. A bottom groove profile surface of the punch pin, a top groove profile surface of the ejector and the cavity define a powder filling area. The side portion of the mold body is provided with a powder spray channel communicating with the powder filling area, and a powder spraying component is arranged on the outer portion of the powder spray channel and communicates with the powder spray channel. The blade powder blank forming method adopting spray tube powder filling is performed through the blade powder blank forming device adopting spray tube powder filling and comprises the following steps of S1 conducting installation, S2 arranging a powder filling area, S3 conducting spray type powder filling, S4 closing the powder spray channel, S5 conducting compression molding, S6 taking out a piece and S7 keeping the steps from the step S2 to the step S6 being circularly executed. The blade powder blank forming device and method adopting spray type powder filling have the advantages that the structure is simple, operation is easy and convenient, the application range is wide, and it can be guaranteed that the compression ratios of all areas can be identical in the powder forming process.
Description
Technical field
The invention mainly relates to pressed powder press-moulding die field, more particularly to a kind of knife of injecting type powder filler
Piece powder base shaped device and forming method.
Background technology
At present, powder filler adopts volumetric method, i.e., moved back and forth on die body top surface by pusher boots, by powder from heavy sensation of the body
Power fills up die cavity, and after powder is full of, the powder bottom in die cavity has the shape similar with backing-out punch surface trench structure, but powder
It is a plane that last term face is equal with die cavity top surface.With the development of hard alloy numerical control blade, complicated blade structure constantly gushes
Existing, blade top bottom surface trench structure becomes increasingly complex and grooved height value also gradually becomes big, so being suppressed using existing filler
Mode, it is inconsistent with drift grooved shape because the powder in die cavity top is a plane, cause each area during powder forming
The compression ratio difference in domain is big, and each areal concentration distribution of pressed compact base substrate is serious uneven, and deformation is serious after final pressed compact is sintered.
The patent of invention of patent No. WO2016066454A1 discloses a kind of according on a certain vertical direction section of product
The nonplanar die body structure of shape design top surface, and the pusher boots of mating die body surface face design specialized, due to drift grooved simultaneously
Filler is carried out according to actual channel profile structure, so simply improving the compression ratio in each region to a certain extent.In addition, this kind of side
Method is only applicable to product and has some specific products such as symmetry trench structure, such as amputation knife, A series of products etc..Meanwhile,
Due to the change of product size, corresponding mould fixture and pusher boots need to be remake, so, spend relatively costly and fabrication cycle
It is longer.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of simple structure, it is easy to operate,
The blade powder base of the consistent injecting type powder filler of compression ratio applied widely, can guarantee that each region during powder forming into
Type device.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of blade powder base shaped device of injecting type powder filler, including die body, offer the die cavity for running through on the die body,
The die body top and bottom are respectively equipped with the drift and backing-out punch extended in die cavity, the ram bottom channel profile and ejection
Powder fill area is formed between device top channel profile and die cavity, the die body sidepiece offers the powder communicated with powder fill area
End injection road, is equiped with the powderject part for communicating therewith outside the powderject road.
As the further improvement of above-mentioned technical proposal：
The powderject road is gradually reduced by export-oriented powder fill area direction.
The elevation angle of powderject road diapire be α, 15 ° ≦ α≤20 °.
The peak of powderject road roof is A, and the peak of the ram bottom channel profile is C, ram bottom
The nadir of channel profile is D, and when powder is filled, C and D points are respectively positioned on A points top, and the distance between A and C are L1, L1>2mm,
The distance between A and D be L2,0<L2<0.5mm.
The peak of powderject road diapire is B, and in compacting, D points are respectively positioned on B lower sections, the distance between B and D
For L3,0.2<L3<0.5mm.
The powderject part includes the gentle spray piece of powder feed part, outlet side and the powderject road of the gas blowout part
Connection, the powder feed part is installed on gas blowout part and communicates therewith.
The gas blowout part includes air inlet pipe, accelerating tube and gas control valve, and the accelerating tube is installed in air inlet bottom of the tube simultaneously
Connect with powderject road, the gas control valve is installed in air inlet pipe, the powder feed part is connected with air inlet pipe.
The powder feed part includes hopper, passage and powder control valve, and the passage is installed in feed hopper bottom simultaneously
Connect with air inlet pipe, the powder control valve is installed on passage.
The core bar through backing-out punch centre bore is equiped with the backing-out punch.
The blade powder base forming method of a kind of injecting type powder filler, with the blade powder base of above-mentioned injecting type powder filler
Shaped device is carried out, and is comprised the following steps：
S1：Install：Drift and backing-out punch is accordingly installed in the upper and lower of die body and corresponding with die cavity, powderject part is pacified
It is mounted in powderject road outside and communicates therewith；
S2：Powder fill area is set：Start drift and backing-out punch is extended in die cavity, make drift and backing-out punch be located at powder spray respectively
The upper and lower penetrated, adjusts spacing between drift and backing-out punch and forms powder fill area according to blade size；
S3：Powderject is filled：Open powderject part pressed powder to be sprayed to powder fill area until filling up whole
Powder fill area；
S4：Close in powderject road：Powder in drift, backing-out punch and powder fill area is integrally moved down, drift sidepiece is made
Powderject road is formed and is closed；
S5：It is compressing：Start press-fit backing-out punch under drift to suppress to form powder green bodies by the powder in powder fill area；
S6：Pickup：Start drift and depart from die cavity, base substrate is sent and taken away by startup backing-out punch from die cavity top；
S7：S2 to S6 circulations are kept to carry out.
Compared with prior art, it is an advantage of the current invention that：
The blade powder base shaped device of the injecting type powder filler of the present invention, when using, directly stretches into type by drift and backing-out punch
Intracavity simultaneously forms powder fill area between die cavity, and the feeding of powder is by powderject part from the powderject road of die body sidepiece
Spray to powder fill area, after powder fill area is filled up, by the powder entirety in drift, backing-out punch and powder fill area
Move down, make drift sidepiece form powderject road and close, then the powder in powder fill area is pressed, you can
Form blade powder base.It is of the invention by carrying out injecting type powder filler mode from die body sidepiece for traditional structure, with syzygies
Powder fill area is formed between head bottom channel profile and backing-out punch top channel profile and die cavity, drift and ejection is fully achieved
Tank type shape carries out profiling filler, can guarantee that the compression ratio in each region during powder forming is consistent, each region of pressed compact base substrate
Density Distribution is uniform, solves because of the impact of the deformation of products caused by filler diversity, is production high dimensional accuracy complexity groove
The product of type structure creates favorable conditions；The present invention is not affected by product trench structure, and its is applied widely, simple structure,
It is easy to operate.The blade powder base forming method of the injecting type powder filler of the present invention, with the knife of above-mentioned injecting type powder filler
Piece powder base shaped device is carried out, therefore possesses the corresponding technique effect of insert powder base shaped device.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the blade powder base shaped device of injecting type powder filler of the present invention.
Fig. 2 is the perspective cross-sectional structural representation of the blade powder base shaped device of injecting type powder filler of the present invention（Powder
The non-view of injecting-unit）.
Fig. 3 is the main cross section structure diagram of the blade powder base shaped device of injecting type powder filler of the present invention（Filler shape
State）.
Fig. 4 is mplifying structure schematic diagram at the M of Fig. 3.
Fig. 5 is the main cross section structure diagram of the blade powder base shaped device of injecting type powder filler of the present invention（Compacting shape
State）.
Fig. 6 is mplifying structure schematic diagram at the N of Fig. 5.
Fig. 7 is the flow chart of the blade powder base forming method of injecting type powder filler of the present invention.
Each label is represented in figure：
1st, die body；11st, die cavity；12nd, powderject road；2nd, drift；3rd, backing-out punch；31st, core bar；4th, powder fill area；5th, powder
Injecting-unit；51st, powder feed part；511st, hopper；512nd, passage；513rd, powder control valve；52nd, gas blowout part；521st, air inlet
Pipe；522nd, accelerating tube；523rd, gas control valve.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Fig. 1 to Fig. 6 shows a kind of embodiment of the blade powder base shaped device of injecting type powder filler of the present invention, including
Die body 1, offers the die cavity 11 for running through on die body 1, the top of die body 1 and bottom be respectively equipped with the drift 2 that extends in die cavity 11 with
And backing-out punch 3, powder fill area 4, mould are formed between the bottom channel profile of drift 2 and the top channel profile of backing-out punch 3 and die cavity 11
The sidepiece of body 1 offers the powderject road 12 communicated with powder fill area 4, is equiped with what is communicated therewith outside powderject road 12
Powderject part 5.When using, directly drift 2 and backing-out punch 3 are stretched in die cavity 11 and form powder between die cavity 11 and filled out
Area 4 is filled, the feeding of powder is sprayed to powder fill area 4 by powderject part 5 from the powderject road 12 of the sidepiece of die body 1,
After powder fill area 4 is filled up, the powder in drift 2, backing-out punch 3 and powder fill area 4 is integrally moved down, make the side of drift 2
Portion forms to powderject road 12 and closes, and then the powder in powder fill area 4 is pressed, you can form blade powder
Base.For traditional structure, the present invention coordinates the base channel of drift 2 by carrying out injecting type powder filler mode from the sidepiece of die body 1
Powder fill area 4 is formed between type face and the top channel profile of backing-out punch 3 and die cavity 11, drift 2 and backing-out punch 3 is fully achieved
Grooved shape carries out profiling filler, can guarantee that the compression ratio in each region during powder forming is consistent, and each region of pressed compact base substrate is close
Degree is evenly distributed, and solves because of the impact of the deformation of products caused by filler diversity, is production high dimensional accuracy Complex Groove
The product of structure creates favorable conditions；The present invention is not affected by product trench structure, and its is applied widely, simple structure, behaviour
Facilitate.
In the present embodiment, powderject road 12 is gradually reduced by the export-oriented direction of powder fill area 4.In the structure, powder spray
Penetrate 12 ecto-entads to be gradually reduced, it is ensured that the injection dynamics of the outlet of powderject road 12, to guarantee the spray regime of powder.
In the present embodiment, the elevation angle of the diapire of powderject road 12 is α, 15 ° ≦ α≤20 °.So arrange so that powder spray
Penetrate 12 to incline to the bottom channel profile direction of drift 2, further ensure carries out profiling to drift 2 and the grooved shape of backing-out punch 3
Filler, in the present embodiment, α=15 °.
In the present embodiment, the peak of the roof of powderject road 12 is A, and the peak of the bottom channel profile of drift 2 is C, is rushed
The nadir of 2 bottom channel profiles is D, and when powder fill, C and D points are respectively positioned on A points top, and the distance between A and C are L1,
L1>The distance between 2mm, A and D be L2,0<L2<0.5mm.In the present embodiment, L1=2.5mm, L2=0.3mm are so arranged, both
When can guarantee that powder is filled, drift 2 will not be formed to powderject road 12 interferes, and can guarantee that the bottom channel profile of drift 2 to the greatest extent may be used again
The peak of the close roof of powderject road 12 of energy is A, to guarantee to carry out quick profiling filler to the grooved shape of drift 2.
In the present embodiment, the peak of the diapire of powderject road 12 is B, and in compacting, D points are respectively positioned on B lower sections, B and D it
Between distance be L3,0.2<L3<0.5mm.In the present embodiment, L3=0.3mm is so arranged so that the side wall energy of drift 2 is to powder
Injection road 12 forms closing, prevents the powder in compacting from flowing back from the extrusion of powderject road 12.
In the present embodiment, powderject part 5 include the gentle spray piece 52 of powder feed part 51, the outlet side of gas blowout part 52 with
Powderject road 12 is connected, and powder feed part 51 is installed on gas blowout part 52 and communicates therewith.In the structure, powder is fed from powder
Materials and parts 51 enter gas blowout part 52, and Jing gas blowouts part 52 and powderject road 12 are sprayed to powder fill area under the air pressure of gas blowout part 52
4, its is simple and reliable for structure.
In the present embodiment, gas blowout part 52 includes air inlet pipe 521, accelerating tube 522 and gas control valve 523, and accelerating tube 522 is filled
It is located at the bottom of air inlet pipe 521 and connects with powderject road 12, gas control valve 523 is installed in air inlet pipe 521, powder feed
Part 51 is connected with air inlet pipe 521.In the structure, compressed gas are accelerated after flow velocity from powder by air inlet pipe 521 into accelerated pipe 522
End injection road 12 enters injection to powder fill area 4, and the pressure of compressed gas is 4atm, and gas control valve 523 can be controlled
The keying of air inlet pipe 521 and gas flow.
In the present embodiment, powder feed part 51 includes hopper 511, passage 512 and powder control valve 513, passage 512
It is installed in the bottom of hopper 511 and connects with air inlet pipe 521, powder control valve 513 is installed on passage 512.In the structure, powder
End control valve 513 controls powder and flows to passage 512 from hopper 511 and enter air inlet pipe 521.
In the present embodiment, the core bar 31 through the centre bore of backing-out punch 3 is equiped with backing-out punch 3.The core bar 31 is applied to
The molding of blade powder blank strip pore structure, its is simple and practical.
Fig. 1 to Fig. 7 shows a kind of embodiment of the blade powder base forming method of injecting type powder filler of the present invention, uses
The blade powder base shaped device of the injecting type powder filler stated is carried out, and is comprised the following steps：
S1：Install：Drift 2 and backing-out punch 3 is accordingly installed in the upper and lower of die body 1 and corresponding with die cavity 11, by powderject
Part 5 is arranged on the outside of powderject road 12 and communicates therewith；
S2：Powder fill area 4 is set：Start drift 2 and backing-out punch 3 is extended in die cavity 11, make drift 2 and the difference of backing-out punch 3 position
In the upper and lower in powderject road 12, spacing between drift 2 and backing-out punch 3 is adjusted according to blade size and forms powder fill area 4；
S3：Powderject is filled：Open powderject part 5 pressed powder to be sprayed to powder fill area 4 until filling up whole
Individual powder fill area 4；
S4：Close in powderject road 12：Powder in drift 2, backing-out punch 3 and powder fill area 4 is integrally moved down, drift is made
2 sidepieces are formed to powderject road 12 and closed；
S5：It is compressing：Start 2 times press-fit backing-out punch 3 of drift to suppress in the powder in powder fill area 4 to form powder base
Body；
S6：Pickup：Start drift 2 and depart from die cavity 11, base substrate is sent and taken away by startup backing-out punch 3 from the top of die cavity 11；
S7：S2 to S6 circulations are kept to carry out.
The method coordinates the bottom channel profile of drift 2 with ejection by carrying out injecting type powder filler mode from the sidepiece of die body 1
Powder fill area 4 is formed between the top channel profile of device 3 and die cavity 11, drift 2 is fully achieved and the grooved shape of backing-out punch 3 is entered
Row profiling filler, can guarantee that the compression ratio in each region during powder forming is consistent, and each areal concentration of pressed compact base substrate is evenly distributed,
Solve because of the impact of the deformation of products caused by filler diversity, be the product wound for producing high dimensional accuracy Complex Groove structure
Make advantage；The method is not affected by product trench structure, and its is applied widely, easy to operate.
Although the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case of without departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (10)
1. a kind of blade powder base shaped device of injecting type powder filler, including die body（1）, the die body（1）On offer and pass through
The die cavity worn（11）, it is characterised in that：The die body（1）Top and bottom are respectively equipped with and extend die cavity（11）Interior drift（2）
And backing-out punch（3）, the drift（2）Bottom channel profile and backing-out punch（3）Top channel profile and die cavity（11）Between formed
Powder fill area（4）, the die body（1）Sidepiece is offered and powder fill area（4）The powderject road for communicating（12）, the powder
End injection road（12）Outside is equiped with the powderject part for communicating therewith（5）.
2. the blade powder base shaped device of injecting type powder filler according to claim 1, it is characterised in that：The powder
Injection road（12）By export-oriented powder fill area（4）Direction is gradually reduced.
3. the blade powder base shaped device of injecting type powder filler according to claim 2, it is characterised in that：The powder
Injection road（12）The elevation angle of diapire be α, 15 ° ≦ α≤20 °.
4. the blade powder base shaped device of injecting type powder filler according to claim 3, it is characterised in that：The powder
Injection road（12）The peak of roof be A, the drift（2）The peak of bottom channel profile be C, drift（2）Bottom channel profile
Nadir be D, when powder fill, C and D points be respectively positioned on A points top, the distance between A and C be L1, L1>2mm, A and D it
Between distance be L2,0<L2<0.5mm.
5. the blade powder base shaped device of injecting type powder filler according to claim 4, it is characterised in that：The powder
Injection road（12）The peak of diapire be B, compacting when, D points be respectively positioned on B lower section, the distance between B and D be L3,0.2<L3<
0.5mm。
6. the blade powder base shaped device of injecting type powder filler according to any one of claim 1 to 5, its feature exists
In：The powderject part（5）Including powder feed part（51）Gentle spray piece（52）, the gas blowout part（52）Outlet side with
Powderject road（12）Connection, the powder feed part（51）It is installed in gas blowout part（52）Go up and communicate therewith.
7. the blade powder base shaped device of injecting type powder filler according to claim 6, it is characterised in that：The gas blowout
Part（52）Including air inlet pipe（521）, accelerating tube（522）And gas control valve（523）, the accelerating tube（522）It is installed in air inlet
Pipe（521）Bottom and with powderject road（12）Connection, the gas control valve（523）It is installed in air inlet pipe（521）On, it is described
Powder feed part（51）With air inlet pipe（521）Connection.
8. the blade powder base shaped device of injecting type powder filler according to claim 7, it is characterised in that：The powder
Feeding part（51）Including hopper（511）, passage（512）Valve is controlled with powder（513）, the passage（512）It is installed in material
Bucket（511）Bottom and and air inlet pipe（521）Connection, the powder controls valve（513）It is installed in passage（512）On.
9. the blade powder base shaped device of injecting type powder filler according to any one of claim 1 to 5, its feature exists
In：The backing-out punch（3）On be equiped with through backing-out punch（3）The core bar of centre bore（31）.
10. the blade powder base forming method of a kind of injecting type powder filler, it is characterised in that：With any one of claim 1 to 8
The blade powder base shaped device of described injecting type powder filler is carried out, and is comprised the following steps：
S1：Install：By drift（2）And backing-out punch（3）Accordingly it is arranged on die body（1）Upper and lower and and die cavity（11）Correspondence, will
Powderject part（5）Installed in powderject road（12）Outside simultaneously communicates therewith；
S2：Powder fill area is set（4）：Start drift（2）And backing-out punch（3）Extend die cavity（11）It is interior, make drift（2）And ejection
Device（3）Powderject road is located at respectively（12）Upper and lower, according to blade size adjust drift（2）And backing-out punch（3）Between between
Away from formation powder fill area（4）；
S3：Powderject is filled：Open powderject part（5）Pressed powder is sprayed to powder fill area（4）It is interior until fill out
Full whole powder fill area（4）；
S4：Powderject road（12）Closing：By drift（2）, backing-out punch（3）And powder fill area（4）Interior powder integrally under
Move, make drift（2）Sidepiece is to powderject road（12）Form closing；
S5：It is compressing：Start drift（2）Lower press-fit backing-out punch（3）By powder fill area（4）Interior powder is suppressed to form powder
Last base substrate；
S6：Pickup：Start drift（2）Depart from die cavity（11）, start backing-out punch（3）By base substrate from die cavity（11）Send and take in top
Walk；
S7：S2 to S6 circulations are kept to carry out.
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| CN201611011805.1A CN106583717B (en) | 2016-11-17 | 2016-11-17 | The blade powder base molding machine and forming method of injecting type powder filler |
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|---|---|---|---|
| CN201611011805.1A CN106583717B (en) | 2016-11-17 | 2016-11-17 | The blade powder base molding machine and forming method of injecting type powder filler |
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| CN106583717B CN106583717B (en) | 2018-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815819A (en) * | 2018-08-10 | 2020-02-21 | 波音公司 | Method and apparatus for laser deposition |
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| CN106583717B (en) | 2018-12-28 |
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