CN110116207A - The intensifying device and method of selective laser fusing increasing material manufacturing component - Google Patents
The intensifying device and method of selective laser fusing increasing material manufacturing component Download PDFInfo
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- CN110116207A CN110116207A CN201910401274.4A CN201910401274A CN110116207A CN 110116207 A CN110116207 A CN 110116207A CN 201910401274 A CN201910401274 A CN 201910401274A CN 110116207 A CN110116207 A CN 110116207A
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- 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
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/64—Treatment of workpieces or articles after build-up by thermal means
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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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
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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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention relates to the intensifying devices and method of a kind of selective laser fusing increasing material manufacturing component, platform, working chamber above platform and the formation cylinder below platform and Sheng powder cylinder, the upper port of the formation cylinder and the upper port for containing powder cylinder are connected to the working chamber, the working chamber is equipped with laser generating system at the surface for being located at formation cylinder, the laser generating system includes selective laser fusing laser probe and laser peening laser probe, the first bottom plate and the second bottom plate that can be moved up and down are respectively equipped in the formation cylinder and Sheng powder cylinder, the top of first bottom plate is equipped with forming board.Intensifying method of the invention increases laser peening laser in vacuum forming room 4, so that selective laser fusing increases material and laser peening works alternatively, strengthened simultaneously in elements during formation, furthermore, component after reinforcing is directly heat-treated in working chamber 4, reduce the internal stress in forming process, and then improves the mechanical property of increasing material manufacturing component.
Description
Technical field
The invention belongs to increasing material manufacturing reinforcement technique fields, and in particular to a kind of selective laser fusing increasing material manufacturing component
Intensifying device and method.
Background technique
Selective laser melting (SLM Selective laser melting) technology is using metal powder in laser beam
Heat effect under be completely melt, molding a kind of technology through cooled and solidified.Under the effect of high laser energy density, metal powder
It is completely melt, can be achieved to form with the soldering of solid metal metallurgy after cooling.SLM technology is exactly based on this process, layer by layer
Accumulation molds the rapid shaping technique of 3D solid.
However, in the fusion process of selective laser, since the heat input of superposition leads to the inside and surface of increasing material manufacturing component
Serious tensile stress is generated, and then reduces the service life of increasing material manufacturing component, so it is necessary to taking measures to select laser
The residual tension of area's fusing increasing material manufacturing component is controlled.Currently used there are two types of methods: the fusing of 1. selective lasers increases
In material manufacturing process, adjustment increases material technological parameter, such as changes and increases material path, changes the methods of heat input；2. selective laser is melted
After increasing material manufacturing component, component is heat-treated.Above two method can control the tensile stress for increasing material component inside and surface,
But increasing material manufacturing component can not be melted to selective laser and generate invigoration effect, in addition, melting selective laser out of forming cavity
It after part takes out, then is individually heat-treated, not only wastes time, reduces production efficiency, while also due to not in time at heat
It manages and causes to crack.
Therefore, in face of the defect and deficiency of the above-mentioned prior art, need to design a kind of novel device and method.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of selective laser fusing increasing material manufacturing component strengthen device and
Method can make component during increasing material manufacturing while be strengthened, and the component after increasing material manufacturing is not necessarily to take out, directly
It connects and is heat-treated in working chamber.
A kind of intensifying device of selective laser fusing increasing material manufacturing component is provided according to the present invention, comprising: platform is located at
Working chamber above platform and the formation cylinder below platform and Sheng powder cylinder, the upper port of the formation cylinder and the Sheng powder
The upper port of cylinder is connected to the working chamber, and the working chamber is equipped with laser generating system at the surface for being located at formation cylinder,
The laser generating system includes selective laser fusing laser probe and laser peening laser probe, the formation cylinder and Sheng
It is respectively equipped in powder cylinder and the first bottom plate and the second bottom plate that can move up and down is controlled by screw rod, set above first bottom plate
There is forming board, wherein the forming board and the working chamber can generate heat.
In one embodiment, the platform be equipped with scraper plate, the scraper plate can along the upper surface of platform it is described at
It is moved back and forth between shape cylinder and the Sheng powder cylinder.
In one embodiment, seal chamber is formed between the working chamber and the platform, the first bottom plate and the second bottom plate
Room.
In one embodiment, air inlet and air outlet are respectively equipped in the two side walls of the working chamber.
In one embodiment, the inner wall of the formation cylinder, which is equipped with, inhales powder mouth.
It in one embodiment, further include connecting and controlling the laser generating system, the screw rod and the scraper plate
Computer.
The present invention also provides a kind of intensifying methods using intensifying device described above, comprising the following steps:
Step 1: work is prepared to working chamber and laser generating system；
Step 2: in working chamber, control uses the selective laser fusing laser probe of laser generating system and laser peening
Laser probe works alternatively, and strengthens simultaneously to lamella metal during increasing material component and forming lamella metal, until swashing
Light selective melting increasing material manufacturing component completes the process；
Step 3: in working chamber, increasing material manufacturing being melted to the selective laser completed the process using forming board and working chamber
Component is heat-treated.
In one embodiment, the step 1, and specifically includes the following steps:
Step 11: metal powder being packed into and is contained in powder cylinder, and inert gas is passed through in working chamber by air inlet；
Step 12: the threedimensional model of component being carried out to be sliced discrete and planning parameters of scanning paths, obtains controllable laser beam flying
Slicing profile information；
Step 13: stress analysis is carried out with threedimensional model of the computer to component, obtains the stress weak link of component, and
Laser peening parameter is inputted in computer.
In one embodiment, the step 2, and specifically includes the following steps:
Step 2.1: the bottom plate in formation cylinder moves down, at the same contain the bottom plate in powder cylinder move up make contain powder cylinder in
Metal powder moves up, and scraper plate forms one layer of metal from Sheng powder cylinder to mobile metal powder is laid in formation cylinder of formation cylinder
Powder bed scrapes sheet reset later；
Step 2.2: computer successively calls in slicing profile information, and control selective laser fusing issues laser with laser probe
Beam selectively melts the metal powder layer in formation cylinder and forms lamella metal；
Step 2.3: calling the laser peening parameter being input in computer, control laser peening is issued with laser probe to swash
Light beam strengthens the lamella metal of forming, the selective laser lamella metal after being strengthened；
Step 2.4: repeating step 2.1 to step 2.3, until the selective laser fusing increasing material manufacturing component after strengthening is complete
At；
Step 2.5: opening the suction powder mouth of formation cylinder, absorb metal powder extra in clean formation cylinder.
In one embodiment, in the step 3, the preheating temperature of forming board is 100 DEG C, and by the laser after reinforcing
Then selective melting increasing material manufacturing component was furnace-cooled at forming indoor heat insulating one hour that temperature is 950 DEG C with 50 DEG C/h speed
After 620 DEG C, continue heat preservation eight hours, then carries out air cooling.
Compared with prior art, advantages of the present invention are as follows: the present invention increases laser spray in the working chamber of sealing vacuum
Ball laser probe strengthens lamella metal while laser gain material shapes lamella metal, uses selective laser fusing
Laser probe has been sprayed with laser to be worked alternatively with laser probe, until the laser after strengthening chooses the complete of fusing increasing material manufacturing component
At.In addition, the selective laser fusing increasing material manufacturing component after strengthening does not take out from working chamber immediately, but directly in working chamber
It is interior to be heat-treated by the preheating of forming board and the heating of working chamber, reduce selective laser and melts increasing material manufacturing component forming
Internal stress in the process, and then improve the mechanical property of component.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 shows the structural schematic diagram of the intensifying device of fusing increasing material manufacturing component in selective laser of the present invention；
Fig. 2 to Fig. 6 shows the intensifying method of fusing increasing material manufacturing component in selective laser of the present invention.
Identical component uses identical appended drawing reference in the accompanying drawings.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.To the present invention, how applied technology method solves skill whereby
Art problem, and the realization process for reaching technical effect can be fully understood and implemented.It should be noted that as long as there is no punchings
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
The descriptions such as " top " mentioned in the present embodiment, " lower section " be defined according to common meaning, for example, with reference to
The direction definition of gravity, the direction of gravity be lower section, opposite direction be top, similarly above be top or top
End, what it is in lower section is bottom or bottom end, is also only and is illustrated convenient for narration, rather than to limit the scope of the invention,
Relativeness is altered or modified, under the content of no substantial changes in technology, also when being considered as the enforceable scope of the present invention, embodiment
Described in " first " and " second " also for facilitate narration and define.
The present invention provides a kind of intensifying devices of selective laser fusing increasing material manufacturing component, as shown in Figure 1, comprising: flat
Platform 2, working chamber 4, the Sheng powder cylinder for the formation cylinder of component forming and for containing metal powder 12, wherein working chamber 4 is located at
2 top of platform, formation cylinder and Sheng powder cylinder are located at 2 lower section of platform, it is preferable that the area of 2 upper surface of platform is greater than 4 bottom of working chamber
Area, the area of formation cylinder and the area for containing powder cylinder may be the same or different；The upper port and Sheng powder cylinder of working chamber 4
Upper port be located at working chamber 4 cover platform 2 in the range of, therefore the upper port of formation cylinder and Sheng powder cylinder upper port and forming
Room 4 is connected to, and the working chamber 4 is equipped with laser generating system 7, and laser generating system 7 includes selective laser fusing laser probe 6
With laser peening laser probe 9, it is preferable that laser generating system 7 is located at the surface of formation cylinder, and the formation cylinder is equipped with
The first bottom plate that can be moved up and down, the first bottom plate control by the first screw rod 1, and described contain is equipped in powder cylinder and can move up and down
Second bottom plate, the second bottom plate are controlled by the second screw rod 13, in addition, the top of the first bottom plate is equipped with forming board 3, wherein described
Forming board 3 and the working chamber 4 can generate heat, and specifically, forming board 3 has pre- heat function, and working chamber 4 has heating function
Energy.
Further, scraper plate 11 is additionally provided on the platform 2, the scraper plate 11 can be along the upper surface of platform 2 in institute
It states and is moved back and forth between formation cylinder and the Sheng powder cylinder.Wherein, on perpendicular to 11 direction of motion of scraper plate, the projection of scraper plate 11 is long
Degree is greater than formation cylinder and contains the projected length of powder cylinder.Metal powder 12 is loaded in powder cylinder containing, scraper plate 11, can by movement
The metal powder 12 that will protrude above 2 upper surface of platform is laid in formation cylinder.
Further, the sealing of sealing is formed between the working chamber 4 and the platform 2, the first bottom plate and the second bottom plate
Vacuum chamber.And air inlet 5 and gas outlet 10 are respectively equipped in the two side walls of the working chamber 4.Due to containing in powder cylinder
Equipped with metal powder 12, and metal powder 12 easily aoxidizes in fusion process, to avoid increasing material failure, therefore by indifferent gas
Body enters working chamber 4 by air inlet 5, is maintained at entire forming process in the seal molding room 4 for be connected with protective gas and carries out.
Preferred inert gas is argon gas in the present embodiment.But it is not limited to argon gas.
Further, the inner wall of the formation cylinder, which is equipped with, inhales powder mouth 15 (as shown in Figure 6).Powder mouth 15 is inhaled for shaping
After, the extra metal powder 12 in formation cylinder in addition to increasing material manufacturing component is absorbed completely, convenient in post forming
When being heat-treated in room 4, guarantee the integrality of Member Lip and total.Wherein, inhaling powder mouth 15 can be along formation cylinder
It is arranged within inner wall surrounding one week, can also be spaced or be symmetrical arranged on the inside of formation cylinder, it is preferable that inhale 15 vertical direction of powder mouth
Height be greater than or equal to and ultimately form the height of component, in addition, it is necessary to which explanation, inhales structure, position and the height of powder mouth 15
Degree can produce according to the actual situation to be designed and selects.
It further, further include computer 8, computer 8 connects and controls laser generating system 7, the first screw rod 1, second
The operation of screw rod 13 and the scraper plate 11.In addition, computer 8 be also connected with and control preheating temperature and the time of forming board 3 with
And the acid extraction of working chamber 4.
The present invention also provides a kind of intensifying methods of selective laser fusing increasing material manufacturing component, using laser described above
The intensifying device of selective melting increasing material manufacturing component, specifically includes the following steps:
Step 1: work is prepared to working chamber 4 and laser generating system 7；
Step 2: the selective laser fusing laser probe 6 and laser peening for making laser generating system 7 are controlled in working chamber 4
It is worked alternatively with laser probe 9, lamella metal is strengthened simultaneously during increasing material component and forming lamella metal, until
Selective laser fusing increasing material manufacturing component 14 completes the process；
Step 3: in working chamber 4, material being increased to the selective laser fusing completed the process using forming board 3 and working chamber 4
Manufacture component 14 is heat-treated.
Wherein, the step 1, and specifically includes the following steps:
Step 11: metal powder 12 being packed into and is contained in powder cylinder, and is led in the working chamber 4 of sealing vacuum by air inlet 5
Enter inert gas (preferably argon gas)；
Step 12: the threedimensional model for needing tooling member is carried out using computer 8 to be sliced discrete and planning parameters of scanning paths,
Obtain the slicing profile information of controllable laser beam flying；
Step 13: stress analysis is carried out with threedimensional model of the computer 8 to component, obtains the stress weak link of component,
And laser peening parameter is inputted in computer 8.
Wherein, the step 2, and specifically includes the following steps:
Step 2.1: the first screw rod 1 in formation cylinder controls the first bottom plate and moves down, while containing second in powder cylinder
Bar 13, which controls the second bottom plate and moves up, moves up the metal powder 12 contained in powder cylinder (as shown in Figure 2), and scraper plate 11 is by containing
Powder cylinder forms one layer 12 layers of metal powder to mobile metal powder 12 is laid in formation cylinder of formation cylinder, and scraper plate 11 is multiple later
Position；Wherein, 12 volume of metal powder and the first bottom plate that the height that the second bottom plate rises is obtained multiplied by the area for containing powder cylinder decline
Height it is equal multiplied by the volume of the area of formation cylinder.
Step 2.2: computer 8 successively calls in slicing profile information, and the fusing of control selective laser is issued with laser probe 6 to swash
Light beam melts 12 layer-selective of metal powder in formation cylinder to form a synusia layer metal (as shown in Figure 3)；
Step 2.3: calling the laser peening parameter being input in computer 8, control laser peening is issued with laser probe 9
Laser beam strengthens the lamella metal of forming, the selective laser lamella metal (as shown in Figure 4) after being strengthened；
Step 2.4: repeating step 2.1 to step 2.3, until the selective laser fusing increasing material manufacturing component 14 after strengthening is complete
At (as shown in Figure 5)；
Step 2.5: opening the suction powder mouth 15 of formation cylinder, absorb metal powder 12 extra in clean formation cylinder (such as Fig. 6 institute
Show).
Specifically by taking GH4169 alloy as an example, it is 260~350W that laser power selected by increasing material manufacturing is melted in selective laser, is swept
Retouching speed is 0.9~1.5m/s.Laser peening parameter is 7~10J of laser energy, wavelength 1064nm, pulsewidth 10ns, laser facula
Diameter 3mm.And in the step 3, the preheating temperature of forming board 3 is 100 DEG C, and the selective laser after reinforcing is melted and is increased
Material manufacture component 14 was 4 inside holding of working chamber one hour that temperature is 950 DEG C, after being then furnace-cooled to 620 DEG C with 50 DEG C/h speed,
Continue heat preservation eight hours, then carries out air cooling.
Although by reference to preferred embodiment as above, invention has been described, the content only to facilitate
The embodiment for understanding the present invention and using, is not intended to limit the invention.Technology in any the technical field of the invention
Personnel can appoint in the formal and details of implementation without departing from the spirit and scope of the present disclosure
What modification and variation, but scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. the intensifying device of selective laser fusing increasing material manufacturing component characterized by comprising platform, above platform
Working chamber and formation cylinder and Sheng powder cylinder below platform, the upper port of the formation cylinder and the upper port for containing powder cylinder
It is connected to the working chamber, the working chamber is equipped with laser generating system, the laser hair at the surface for being located at formation cylinder
Raw system includes selective laser fusing laser probe and laser peening laser probe, difference in the formation cylinder and Sheng powder cylinder
Equipped with the first bottom plate and the second bottom plate that can be moved up and down, the top of first bottom plate is equipped with forming board.
2. the intensifying device of selective laser according to claim 1 fusing increasing material manufacturing component, which is characterized in that it is described at
Shape substrate and the working chamber can generate heat.
3. the intensifying device of fusing increasing material manufacturing component in selective laser according to claim 1, which is characterized in that described flat
Platform is equipped with scraper plate, and the scraper plate can move back and forth between the formation cylinder and the Sheng powder cylinder along the upper surface of platform.
4. the intensifying device of selective laser according to claim 1 fusing increasing material manufacturing component, which is characterized in that it is described at
Sealed chamber is formed between shape room and the platform, the first bottom plate and the second bottom plate；In the two side walls of the working chamber respectively
Equipped with air inlet and air outlet.
5. the intensifying device of selective laser according to claim 1 fusing increasing material manufacturing component, which is characterized in that it is described at
The inner wall of shape cylinder, which is equipped with, inhales powder mouth.
6. the intensifying device of fusing increasing material manufacturing component in selective laser according to claim 3, which is characterized in that strengthen dress
Setting further includes the computer for connecting and controlling the laser generating system and the scraper plate.
7. a kind of intensifying method using intensifying device as claimed in any one of claims 1 to 6, which is characterized in that including following
Step:
Step 1: work is prepared to working chamber and laser generating system；
Step 2: in working chamber, control makes the selective laser fusing laser probe and laser peening laser of laser generating system
Probe works alternatively, and strengthens simultaneously to lamella metal during increasing material component and forming lamella metal, until laser selects
Area's fusing increasing material manufacturing component completes the process；
Step 3: in working chamber, increasing material manufacturing component being melted to the selective laser completed the process using forming board and working chamber
It is heat-treated.
8. the intensifying method of fusing increasing material manufacturing component in selective laser according to claim 7, which is characterized in that the step
Rapid 1, and specifically includes the following steps:
Step 11: metal powder being packed into and is contained in powder cylinder, and inert gas is passed through in working chamber by air inlet；
Step 12: the threedimensional model of component being carried out to be sliced discrete and planning parameters of scanning paths, obtains cutting for controllable laser beam flying
Piece profile information；
Step 13: carrying out stress analysis with threedimensional model of the computer to component, obtain the stress weak link of component, and past meter
Laser peening parameter is inputted in calculation machine.
9. the intensifying method of fusing increasing material manufacturing component in selective laser according to claim 8, which is characterized in that the step
Rapid 2, and specifically includes the following steps:
Step 2.1: the bottom plate in formation cylinder moves down, while containing the bottom plate in powder cylinder and moving up the metal made in Sheng powder cylinder
Powder moves up, and scraper plate forms one layer of metal powder from Sheng powder cylinder to mobile metal powder is laid in formation cylinder of formation cylinder
Layer, scrapes sheet reset later；
Step 2.2: computer successively calls in slicing profile information, and control selective laser fusing issues laser beam with laser probe,
Metal powder layer in formation cylinder is selectively melted and forms lamella metal；
Step 2.3: calling the laser peening parameter being input in computer, control laser peening issues laser with laser probe
Beam strengthens the lamella metal of forming, the selective laser lamella metal after being strengthened；
Step 2.4: repeating step 2.1 to step 2.3, until the selective laser fusing increasing material manufacturing component after strengthening is completed；
Step 2.5: opening the suction powder mouth of formation cylinder, absorb metal powder extra in clean formation cylinder.
10. the intensifying method of fusing increasing material manufacturing component in selective laser according to claim 9, which is characterized in that described
In step 3, the preheating temperature of forming board is 100 DEG C, and by the selective laser fusing increasing material manufacturing component after reinforcing in temperature
For forming indoor heat insulating one hour of 950 DEG C, after being then furnace-cooled to 620 DEG C with 50 DEG C/h speed, continue to keep the temperature eight hours, then into
Row air is cooling.
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| CN112809022A (en) * | 2020-12-23 | 2021-05-18 | 中南大学 | Novel method for preparing metal product by additive |
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| CN113976925A (en) * | 2021-10-14 | 2022-01-28 | 华中科技大学 | Additive manufacturing equipment and method combining selective laser melting and laser shock peening |
| CN113996810A (en) * | 2021-11-15 | 2022-02-01 | 北京科技大学 | Selective Laser Melting (SLM) forming and post-processing integrated device and processing method |
| US20220250159A1 (en) * | 2021-02-08 | 2022-08-11 | Divergent Technologies, Inc. | Apparatus for multi-scale directed energy deposition with integral non-abrasive reduction of waviness |
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| CN117102506A (en) * | 2023-08-30 | 2023-11-24 | 江苏大学 | Shape regulation and control method and device for selective melting of ultrasonic rolling composite laser |
| CN117102506B (en) * | 2023-08-30 | 2024-03-12 | 江苏大学 | Shape regulation and control method and device for selective melting of ultrasonic rolling composite laser |
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