CN108311697A - A kind of integrated double-type laser improves the apparatus and method of SLM surface of shaped parts quality - Google Patents
A kind of integrated double-type laser improves the apparatus and method of SLM surface of shaped parts quality Download PDFInfo
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- CN108311697A CN108311697A CN201810058878.9A CN201810058878A CN108311697A CN 108311697 A CN108311697 A CN 108311697A CN 201810058878 A CN201810058878 A CN 201810058878A CN 108311697 A CN108311697 A CN 108311697A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B22F12/40—Radiation means
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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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
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- 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
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- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
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- 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
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- B22F10/77—Recycling of gas
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- 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
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
- B22F12/43—Radiation means characterised by the type, e.g. laser or electron beam pulsed; frequency modulated
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- 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
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- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
The invention discloses the apparatus and method that a kind of integrated double-type laser improves SLM surface of shaped parts quality；The device includes optical fiber laser, optical-fiber laser beam-expanding collimation device, femto-second laser, femtosecond laser beam-expanding collimation device, scanning galvanometer, lens etc..During SLM layered manufacturings, the defects of being sticked to the nodularization that is likely to occur in each shape layer and on profile, protrusion, powder using femtosecond laser technology carries out ablation finishing, to improve the surface quality of each SLM shape layers on the basis of not generating additional heat affecting, realizing improves upper surface and the side surface roughness of SLM molded parts under accumulation, the performance indicators such as part compactness and dimensional accuracy are improved, the rejection rate of SLM processing is reduced.
Description
Technical field
The present invention relates to the improvement of the Forming Quality of metal 3D printing molded part and Optimized Measures more particularly to a kind of collection are in pairs
Type laser improves the apparatus and method of SLM surface of shaped parts quality.
Background technology
Selective laser fusing (Selective LaserMelting, SLM) technology be it is a kind of can straight forming dense structure,
The metal increases material manufacturing technology of satisfactory mechanical property, can straight forming metallurgical binding, complex-shaped high-precision metal part.It should
Technology has unique excellent in aerospace parts, cutter die, bullion and personalized medicine biologic implant manufacture etc.
Gesture.Though being compared with conventionally manufactured processing, SLM has many advantages, since current SLM processing technologys difficulty or ease realize unified, cause
Make the surface roughness of molded part is poor to become its maximum defect.The arithmetic mean of SLM surface of shaped parts is inclined under normal circumstances
Difference reaches 10~50 μm.Surface of shaped parts can be divided into forming surface outside the part for being parallel to substrate, i.e. upper surface；With substrate at one
Determine the forming surface of angle, i.e. side surface；Forming surface that feature bottom is in contact with substrate or the draping face for being parallel to substrate, i.e. following table
Face.In forming process, the roughness of upper surface defines connectivity and forming stability between layers, to part densification
Degree, mechanical performance have larger impact, molded part side surface roughness to have larger impact to the dimensional accuracy of part.
Currently, mainly including the optimization of technological parameter in process for SLM surface of shaped parts roughness lifting means
The modes such as (laser power, sweep speed, scanning strategy etc.), post-processing and polishing, not to each layer in SLM process engineerings
Metal powders melt situation is detected and handles, i.e., when because technological parameter setting is improper, nodularization, protrusion and powder occur glutinous
Defect is not modified in real time when the defects of attached.
Invention content
The present invention provides a kind of apparatus and method of integrated double-type laser raising SLM surface of shaped parts quality.Purpose is
During SLM layered manufacturings, the nodularization, convex using femtosecond laser technology to being likely to occur in each shape layer and on profile
Rise, powder the defects of sticking, carries out ablation finishing, to improve each SLM shape layers on the basis of not generating additional heat affecting
Surface quality, realize accumulation under improve SLM molded parts upper surface and side surface roughness, improve part compactness and
The performance indicators such as dimensional accuracy reduce the rejection rate of SLM processing.
The present invention is achieved through the following technical solutions：
A kind of integrated double-type laser improves the device of SLM surface of shaped parts quality, including computer system 14, femtosecond
Laser 5, optical fiber laser 13, femtosecond laser beam-expanding collimation device 7, optical-fiber laser beam-expanding collimation device 11, Y axis scanning galvanometer 8, X
Axis scanning galvanometer 10, X-Y scanning galvanometers controller 9, lens 4；The femto-second laser 5 and optical fiber laser 13 are distinguished telecommunication and are connected
Connect computer system 14；X-axis scanning galvanometer 10 is connected by 9 telecommunication of X-Y scanning galvanometers controller respectively with Y axis scanning galvanometer 8
Computer system 14；
X-Y scanning galvanometers controller 9 controls X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8 rotates；
The light path order of connection of optical fiber laser 13 is：The fiber laser beam 12 that optical fiber laser 13 is sent out, by optical fiber
Laser bundle-enlarging collimation device 11 injects X-axis scanning galvanometer 10, and reflects and inject Y axis scanning galvanometer 8, is projected by lens 4, and make
Part machining area in moulding cylinder 2；
The light path order of connection of femto-second laser 5 is：The femtosecond laser beam 6 that femto-second laser 5 is sent out, by femtosecond laser
Beam-expanding collimation device 7 injects the X-axis scanning galvanometer 10 after 180 ° of reversion, and reflects and inject Y axis scanning galvanometer 8, using lens 4
It projects, and acts on the part machining area in moulding cylinder 2.
A switching is equipped between the optical fiber laser 13 and femto-second laser 5 to switch；Switching switch is for selectivity
It is turned on or off femto-second laser 5 or optical fiber laser 13, makes each separate operaton.
The moulding cylinder 2 is located in pressurization working lumen 3；The both sides of pressurization working lumen 3 pass through entry/exit pipeline and outside respectively
Gas circulation filter device 1 connect.
A kind of operation method of the device of integrated double-type laser raising SLM surface of shaped parts quality, including SLM moldings
Pattern and finishing pattern；
It is as follows that SLM is molded pattern：
It is switched by switching, so that optical fiber laser 13 is in open state, femto-second laser 5 is closed；
The fiber laser beam 12 that optical fiber laser 13 is sent out injects X-axis scanning by optical-fiber laser beam-expanding collimation device 11 and shakes
Mirror 10, and reflect and inject Y axis scanning galvanometer 8, it finally acts on the powder bed in moulding cylinder 2 by lens 4, is scanned by X-Y
Galvanometer controller 9 controls the rotation of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8, realizes the metal powder choosing for making shape layer into
Selecting property melts；
Finishing pattern is as follows：
It is switched by switching, so that optical fiber laser 13 is closed, femto-second laser 5 is in open state；
The femtosecond laser beam 6 that femto-second laser 5 is sent out, after femtosecond laser beam-expanding collimation device 7 injects 180 ° of reversion
X-axis scanning galvanometer 10, and reflect and inject Y axis scanning galvanometer 8, finally current molding layer surface and profile are acted on by lens 4
On defect, the rotation of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8 is controlled by X-Y scanning galvanometers controller 9, realize the layer at
The ablation of type layer is modified.
A kind of method that integrated double-type laser improves SLM surface of shaped parts quality comprising following steps：
Step 1：Gas circulation filter device 1 is opened, and moulding cylinder 2 declines a molding thickness, and powder cylinder 16 rises at least
One molding thickness, powdering arm 5 move powdering；
Optical fiber laser 13 is opened；The model slice information of molded part is imported into computer system 14, computer system 14
According to model slice data, control information is transferred to X-Y scanning galvanometers controller 9, fiber laser beam 12 passes through optical-fiber laser
Beam-expanding collimation device 11, and by realizing optical-fiber laser to metal powder the control of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8
Selective melting, complete this formable layer layer selective laser fusing operation；Close optical fiber laser 13；
Step 2：This layer model slice of data is scanned, and optical fiber laser 13 is closed, and X-Y scanning galvanometers controller 9 is controlled
X-axis scanning galvanometer 10 processed inverts 180 ° to prepare to modify shape layer described in step 1；
Open femto-second laser 5；The defect information of the surface of the shape layer and profile is inputted into computer system 14, meter
After the surface of the shape layer and profile defects information are converted to optimal control information by calculation machine system 14, it is transferred to X-Y and sweeps
Retouch galvanometer controller 9；Femtosecond laser beam 6 is by femtosecond laser beam-expanding collimation device 7, in X-axis scanning galvanometer 10 and Y axis scanning galvanometer
Under 8 control, ablation finishing is carried out to the defect of the shape layer profile and surface；
Femto-second laser 5 is closed after the completion of finishing, X-axis scanning galvanometer 10 inverts 180 °, and opens optical fiber laser 13, with
Switch to the SLM operations for forming of next shape layer；
Step 3：Step 1 and step 2 are repeated until SLM molded parts are molded completely；Gas circulation filter device 1 is closed,
Take out the SLM molded parts in moulding cylinder 2, completion of processing.
The defect of pair the shape layer profile and surface described in upper step 2 carries out ablation finishing, refers to on profile and surface
Ball bumps or powder stick defect carry out ablation finishing.
The present invention compared with the existing technology, has the following advantages and effect：
In SLM forming processes, the defect in each layer of molded part and on profile is modified by femtosecond laser,
The promotions of performances such as molded part interior solid degree and the improvement of outer surface roughness are realized, rather than with post-processing
Method improves molded part performance；
Femtosecond laser in time improves the finishing of defect the yield rate of SLM technologies；
Optical-fiber laser and femtosecond laser are included in same SLM device simultaneously, improve production efficiency.Femtosecond swashs
Light has the characteristic that pulse width is narrow, peak power is high.In the ablation process of femtosecond laser, laser is in extremely short time and pole
In small space and matter interaction, phenomena such as diffusion along with no thermal energy, the temperature moment of the zone of action steeply rises
And the fusing far more than material and gasification temperature, real cold working is realized, thermal deformation, stress that hot-working is brought are avoided
The negative effects such as residual.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram that the integrated double-type laser of the present invention improves SLM surface of shaped parts quality.
Fig. 2 is the method flow diagram that the integrated double-type laser of the present invention improves SLM surface of shaped parts quality.
Fig. 3 be femtosecond laser beam 6 to molding layer surface on profile ball bumps or powder stick defect and burn
Erosion finishing schematic diagram.
In figure：Gas circulation filter device 1；Moulding cylinder 2；Pressurization working lumen 3；Lens 4；Femto-second laser 5；Femtosecond laser
Beam 6；Femtosecond laser beam-expanding collimation device 7；Y axis scanning galvanometer 8；X-Y scanning galvanometers controller 9；X-axis scanning galvanometer 10；Optical fiber swashs
Light beam-expanding collimation device 11；Fiber laser beam 12；Optical fiber laser 13；Computer system 14；Powdering arm 15；Powder cylinder 16.
Specific implementation mode
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figs. 1-3.The invention discloses the dresses that a kind of integrated double-type laser improves SLM surface of shaped parts quality
It sets, including computer system 14, femto-second laser 5, optical fiber laser 13, femtosecond laser beam-expanding collimation device 7, optical-fiber laser expand
Collimator 11, Y axis scanning galvanometer 8, X-axis scanning galvanometer 10, X-Y scanning galvanometers controller 9, lens 4；The femto-second laser 5
Distinguish telecommunication with optical fiber laser 13 and connects computer system 14；X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8 pass through X-Y respectively
9 telecommunication of scanning galvanometer controller connects computer system 14；Lens 4 are f- θ lens.
X-Y scanning galvanometers controller 9 controls X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8 rotates；
The light path order of connection of optical fiber laser 13 is：The fiber laser beam 12 that optical fiber laser 13 is sent out, by optical fiber
Laser bundle-enlarging collimation device 11 injects X-axis scanning galvanometer 10, and reflects and inject Y axis scanning galvanometer 8, is projected by lens 4, and make
Part machining area in moulding cylinder 2；
The light path order of connection of femto-second laser 5 is：The femtosecond laser beam 6 that femto-second laser 5 is sent out, by femtosecond laser
Beam-expanding collimation device 7 injects the X-axis scanning galvanometer 10 after 180 ° of reversion, and reflects and inject Y axis scanning galvanometer 8, using lens 4
It projects, and acts on the part machining area in moulding cylinder 2.
A switching is equipped between the optical fiber laser 13 and femto-second laser 5 to switch；Switching switch is for selectivity
It is turned on or off femto-second laser 5 or optical fiber laser 13, makes each separate operaton.
The moulding cylinder 2 is located in pressurization working lumen 3；The both sides of pressurization working lumen 3 pass through entry/exit pipeline and outside respectively
Gas circulation filter device 1 connect.
Femtosecond laser beam 6, fiber laser beam 12 should determine the attributes such as respective wavelength and femtosecond laser in practical type selecting
The particular attributes such as pulsewidth, the pulse energy of beam can there are certain requirements optical element type selecting.
Femtosecond laser beam-expanding collimation device 7, the effect of optical-fiber laser beam-expanding collimation device 11 are to realize the beam-expanding collimation of laser beam,
The property parameters of selected laser beam are considered as when type selecting.
X-Y scanning galvanometers include optical element speculum and mechanical motor device；To meet scanning galvanometer to femtosecond laser
Beam and fiber laser beam use upper versatility within the present invention, and when speculum type selecting is considered as the wave of two kinds of laser simultaneously
The requirement of the parameters such as long, femtosecond laser beam pulsewidth；More general X-Y scanning galvanometers are compared, and are swashed to realize that galvanometer system is two kinds
Light beam is time sharing shared, and the electric machine of X axis galvanometers possesses on the basis of ensureing positioning accuracy in scanning galvanometer used in the present invention
The rotation angle of bigger.When femtosecond and fiber laser device distribution both sides setting, the scanning range of X-axis galvanometer is ± 115 °.
Lens focus on a branch of collimated laser beam with different angle incidence in one flat image field, and are entirely putting down
Focal beam spot of the same size is obtained in the image planes of field.The operation wavelength of lens is determined by the characteristic of its surface coating, when laser
When wavelength is not in the operating wavelength range of lens, lens can be by laser scaling loss；The focal beam spot diameter and incident laser of lens
Diameter, the focal length of lens and beam quality factor are related, reasonably design and expand in the femtosecond laser beam and fiber laser beam
Mirror can get smaller focal beam spot and improve processing quality；Lens type selecting be considered as by femtosecond laser beam and optical-fiber laser
The wavelength of beam and the size of femtosecond laser beam mean power.
Action time and scan path of the femtosecond laser beam to fusion defects, due to femtosecond laser ablation effect and laser
The time of the parameters such as power, pulsewidth and effect is related, therefore according to different defect types, the parameter of femtosecond laser in dressing process
It answers different.Since the powder applied in SLM technologies commonly reaches tens microns, the defects of nodularization a diameter of grade
Not, it is all higher than the general processing dimension of femtosecond laser, therefore femtosecond laser meets the requirement of defect repair.Metal is in femtosecond laser
Under ablation effect, eliminated by the gas-recycling plant of SLM device in the form of gasification substance and ion.By in shape layer with
The defects of nodularization of profile, protrusion, carries out the promotion that the performances such as final molding part surface roughness are realized in femtosecond laser finishing.
The device that the present invention integrates double-type laser raising SLM surface of shaped parts quality is divided into two kinds of operational modes, i.e. SLM
Molding pattern and finishing pattern；
It is as follows that SLM is molded pattern：
It is switched by switching, so that optical fiber laser 13 is in open state, femto-second laser 5 is closed；
The fiber laser beam 12 that optical fiber laser 13 is sent out injects X-axis scanning by optical-fiber laser beam-expanding collimation device 11 and shakes
Mirror 10, and reflect and inject Y axis scanning galvanometer 8, it finally acts on the powder bed in moulding cylinder 2 by lens 4, is scanned by X-Y
Galvanometer controller 9 controls the rotation of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8, realizes the metal powder choosing for making shape layer into
Selecting property melts；
Finishing pattern is as follows：
It is switched by switching, so that optical fiber laser 13 is closed, femto-second laser 5 is in open state；
The femtosecond laser beam 6 that femto-second laser 5 is sent out, after femtosecond laser beam-expanding collimation device 7 injects 180 ° of reversion
X-axis scanning galvanometer 10, and reflect and inject Y axis scanning galvanometer 8, finally current molding layer surface and profile are acted on by lens 4
On defect, the rotation of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8 is controlled by X-Y scanning galvanometers controller 9, realize the layer at
The ablation of type layer is modified.
The present invention integrates the method that double-type laser improves SLM surface of shaped parts quality, can be achieved by the steps of：
Step 1：Gas circulation filter device 1 is opened, and moulding cylinder 2 declines a molding thickness, and powder cylinder 16 rises at least
One molding thickness, powdering arm 5 move powdering；
Optical fiber laser 13 is opened；The model slice information of molded part is imported into computer system 14, computer system 14
According to model slice data, control information is transferred to X-Y scanning galvanometers controller 9, fiber laser beam 12 passes through optical-fiber laser
Beam-expanding collimation device 11, and by realizing optical-fiber laser to metal powder the control of X-axis scanning galvanometer 10 and Y axis scanning galvanometer 8
Selective melting, complete this formable layer layer selective laser fusing operation；Close optical fiber laser 13；
Step 2：This layer model slice of data is scanned, and optical fiber laser 13 is closed, and X-Y scanning galvanometers controller 9 is controlled
X-axis scanning galvanometer 10 processed inverts 180 ° to prepare to modify shape layer described in step 1；
Open femto-second laser 5；The defect information of the surface of the shape layer and profile is inputted into computer system 14, meter
After the surface of the shape layer and profile defects information are converted to optimal control information by calculation machine system 14, it is transferred to X-Y and sweeps
Retouch galvanometer controller 9；Femtosecond laser beam 6 is by femtosecond laser beam-expanding collimation device 7, in X-axis scanning galvanometer 10 and Y axis scanning galvanometer
Under 8 control, ablation finishing is carried out to the defect of the shape layer profile and surface；
Femto-second laser 5 is closed after the completion of finishing, X-axis scanning galvanometer 10 inverts 180 °, and opens optical fiber laser 13, with
Switch to the SLM operations for forming of next shape layer；
Step 3：Step 1 and step 2 are repeated until SLM molded parts are molded completely；Gas circulation filter device 1 is closed,
Take out the SLM molded parts in moulding cylinder 2, completion of processing.
The defect of pair the shape layer profile and surface described in upper step 2 carries out ablation finishing, refers to on profile and surface
Ball bumps or powder stick defect carry out ablation finishing.
As described above, the present invention can be better realized.
Embodiment of the present invention are not limited by the above embodiments, other any Spirit Essences without departing from the present invention
With under principle made by changes, modifications, substitutions, combinations, simplifications, should be equivalent substitute mode, be included in the present invention
Within protection domain.
Claims (6)
1. a kind of integrated double-type laser improves the device of SLM surface of shaped parts quality, it is characterised in that：
Including computer system (14), femto-second laser (5), optical fiber laser (13), femtosecond laser beam-expanding collimation device (7), light
Fine laser bundle-enlarging collimation device (11), Y axis scanning galvanometer (8), X-axis scanning galvanometer (10), X-Y scanning galvanometers controller (9), lens
(4)；Telecommunication connects computer system (14) to the femto-second laser (5) respectively with optical fiber laser (13)；X-axis scanning galvanometer
(10) computer system (14) is connected by X-Y scanning galvanometers controller (9) telecommunication respectively with Y axis scanning galvanometer (8)；
X-Y scanning galvanometers controller (9) controls X-axis scanning galvanometer (10) and Y axis scanning galvanometer (8) rotation；
The light path order of connection of optical fiber laser (13) is：The fiber laser beam (12) that optical fiber laser (13) is sent out, by light
Fine laser bundle-enlarging collimation device (11) injects X-axis scanning galvanometer (10), and reflects and inject Y axis scanning galvanometer (8), by lens
(4) it projects, and acts on the part machining area in moulding cylinder (2)；
The light path order of connection of femto-second laser (5) is：The femtosecond laser beam (6) that femto-second laser (5) is sent out swashs by femtosecond
Light beam-expanding collimation device (7) injects the X-axis scanning galvanometer (10) after 180 ° of reversion, and reflects and inject Y axis scanning galvanometer (8), then passes through
Lens (4) injection is crossed, and acts on the part machining area in moulding cylinder (2).
2. integrating the device that double-type laser improves SLM surface of shaped parts quality according to claim 1, it is characterised in that：
A switching is equipped between the optical fiber laser (13) and femto-second laser (5) to switch；The switching is switched for selectively unlocking
Femto-second laser (5) or optical fiber laser (13) are either closed, each separate operaton is made.
3. integrating the device that double-type laser improves SLM surface of shaped parts quality according to claim 2, it is characterised in that：
The moulding cylinder (2) is located in pressurization working lumen (3)；The both sides of pressurization working lumen (3) pass through entry/exit pipeline and outside respectively
Gas circulation filter device (1) connects.
4. integrating the operation method that double-type laser improves the device of SLM surface of shaped parts quality described in claim 3, feature
It is to include SLM molding patterns and finishing pattern；
It is as follows that SLM is molded pattern：
It is switched by switching, so that optical fiber laser (13) is in open state, femto-second laser (5) is closed；
The fiber laser beam (12) that optical fiber laser (13) is sent out injects X-axis scanning by optical-fiber laser beam-expanding collimation device (11)
Galvanometer (10), and reflect and inject Y axis scanning galvanometer (8), finally acted on the powder bed in moulding cylinder (2) by lens (4),
By the rotation of X-Y scanning galvanometers controller (9) control X-axis scanning galvanometer (10) and Y axis scanning galvanometer (8), realizes and make into
The metal powder selective melting of type layer；
Finishing pattern is as follows：
It is switched by switching, so that optical fiber laser (13) is closed, femto-second laser (5) is in open state；
The femtosecond laser beam (6) that femto-second laser (5) is sent out, after femtosecond laser beam-expanding collimation device (7) injects 180 ° of reversion
X-axis scanning galvanometer (10), and reflect inject Y axis scanning galvanometer (8), finally act on current shape layer table by lens (4)
Defect on face and profile, by X-Y scanning galvanometers controller (9) control X-axis scanning galvanometer (10) and Y axis scanning galvanometer (8)
The ablation finishing of the formable layer layer is realized in rotation.
5. a kind of method that integrated double-type laser improves SLM surface of shaped parts quality, it is characterised in that use claim 3 institute
State the device realization that integrated double-type laser improves SLM surface of shaped parts quality comprising following steps：
Step 1：Gas circulation filter device (1) is opened, and moulding cylinder (2) declines a molding thickness, and powder cylinder (16) rises to
Few molding thickness, powdering arm (5) move powdering；
Optical fiber laser (13) is opened；The model slice information of molded part is imported into computer system (14), computer system
(14) according to model slice data, control information is transferred to X-Y scanning galvanometers controller (9), fiber laser beam (12) passes through
Optical-fiber laser beam-expanding collimation device (11), and by realizing optical fiber to the control of X-axis scanning galvanometer (10) and Y axis scanning galvanometer (8)
Laser completes the selective laser fusing operation of this formable layer layer to the selective melting of metal powder；Close optical fiber laser
(13)；
Step 2：This layer model slice of data is scanned, and optical fiber laser (13) is closed, X-Y scanning galvanometers controller (9) control
X-axis scanning galvanometer (10) processed inverts 180 ° to prepare to modify shape layer described in step 1；
Open femto-second laser (5)；By the defect information of the surface of the shape layer and profile input computer system (14), calculate
After the surface of the shape layer and profile defects information are converted to optimal control information by machine system (14), it is transferred to X-Y and sweeps
Retouch galvanometer controller (9)；Femtosecond laser beam (6) passes through femtosecond laser beam-expanding collimation device (7), in X-axis scanning galvanometer (10) and Y-axis
Under the control of scanning galvanometer (8), ablation finishing is carried out to the defect of the shape layer profile and surface；
Femto-second laser (5) is closed after the completion of finishing, X-axis scanning galvanometer (10) inverts 180 °, and opens optical fiber laser (13),
To switch to the SLM operations for forming of next shape layer；
Step 3：Step 1 and step 2 are repeated until SLM molded parts are molded completely；Gas circulation filter device (1) is closed, is taken
Go out the SLM molded parts in moulding cylinder (2), completion of processing.
6. integrating the method that double-type laser improves SLM surface of shaped parts quality according to claim 5, it is characterised in that step
The defect on the rapid two described pairs shape layer profiles and surface carries out ablation finishing, refer to on profile and surface ball bumps or
Person's powder sticks defect and carries out ablation finishing.
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| CN201810058878.9A CN108311697A (en) | 2018-01-22 | 2018-01-22 | A kind of integrated double-type laser improves the apparatus and method of SLM surface of shaped parts quality |
| PCT/CN2018/111619 WO2019140965A1 (en) | 2018-01-22 | 2018-10-24 | Device and method for improving surface quality of slm forming part with integrated double-type laser |
| ZA2020/05142A ZA202005142B (en) | 2018-01-22 | 2020-08-19 | An integrated dual-type laser device for improving a surface quality of slm formed parts and method thereof |
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| CN201810058878.9A CN108311697A (en) | 2018-01-22 | 2018-01-22 | A kind of integrated double-type laser improves the apparatus and method of SLM surface of shaped parts quality |
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| WO (1) | WO2019140965A1 (en) |
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| CN108907196A (en) * | 2018-09-03 | 2018-11-30 | 江苏典悦三维科技有限公司 | Laser increases and decreases material composite manufacturing device and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060221424A1 (en) * | 2005-03-31 | 2006-10-05 | Lintec Corporation | Method for recording information into rewritable thermal label of the non-contact type |
| CN101419336A (en) * | 2008-11-17 | 2009-04-29 | 华中科技大学 | Mirror-vibrating laser three-dimensional scanning system |
| CN103658647A (en) * | 2013-12-10 | 2014-03-26 | 华南理工大学 | SLM device based on four lasers and two stations and machining method |
| CN104190928A (en) * | 2014-08-18 | 2014-12-10 | 中国科学院重庆绿色智能技术研究院 | Multi-wavelength laser area selection quick forming system and method |
| US20150130118A1 (en) * | 2013-11-08 | 2015-05-14 | Industrial Technology Research Institute | Powder shaping method and apparatus thereof |
| WO2017051123A1 (en) * | 2015-09-23 | 2017-03-30 | Manutech-Usd | System and method for additively manufacturing by laser melting of a powder bed |
| CN208288992U (en) * | 2018-01-22 | 2018-12-28 | 华南理工大学 | A kind of integrated double-type laser improves the device of SLM surface of shaped parts quality |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014222159A1 (en) * | 2014-10-30 | 2016-05-04 | MTU Aero Engines AG | Repair method and apparatus for generatively repairing a component |
| CN104889395B (en) * | 2015-06-25 | 2017-01-18 | 武汉大学 | Nanosecond-picosecond-femtosecond laser technology based metal product 3D printing method and system |
| CN104972124B (en) * | 2015-06-25 | 2017-05-24 | 武汉大学 | Real-time monitoring rapid prototyping device and method based on femtosecond laser composite technology |
| CN106180712A (en) * | 2016-07-19 | 2016-12-07 | 梁春永 | A kind of double light source metal dust 3 D-printing system and Method of printing |
| CN106180713A (en) * | 2016-07-19 | 2016-12-07 | 梁春永 | A kind of independent double light source metal dust 3 D-printing systems and Method of printing |
| CN108311697A (en) * | 2018-01-22 | 2018-07-24 | 华南理工大学 | A kind of integrated double-type laser improves the apparatus and method of SLM surface of shaped parts quality |
-
2018
- 2018-01-22 CN CN201810058878.9A patent/CN108311697A/en active Pending
- 2018-10-24 WO PCT/CN2018/111619 patent/WO2019140965A1/en active Application Filing
-
2020
- 2020-08-19 ZA ZA2020/05142A patent/ZA202005142B/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060221424A1 (en) * | 2005-03-31 | 2006-10-05 | Lintec Corporation | Method for recording information into rewritable thermal label of the non-contact type |
| CN101419336A (en) * | 2008-11-17 | 2009-04-29 | 华中科技大学 | Mirror-vibrating laser three-dimensional scanning system |
| US20150130118A1 (en) * | 2013-11-08 | 2015-05-14 | Industrial Technology Research Institute | Powder shaping method and apparatus thereof |
| CN103658647A (en) * | 2013-12-10 | 2014-03-26 | 华南理工大学 | SLM device based on four lasers and two stations and machining method |
| CN104190928A (en) * | 2014-08-18 | 2014-12-10 | 中国科学院重庆绿色智能技术研究院 | Multi-wavelength laser area selection quick forming system and method |
| WO2017051123A1 (en) * | 2015-09-23 | 2017-03-30 | Manutech-Usd | System and method for additively manufacturing by laser melting of a powder bed |
| CN208288992U (en) * | 2018-01-22 | 2018-12-28 | 华南理工大学 | A kind of integrated double-type laser improves the device of SLM surface of shaped parts quality |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019140965A1 (en) * | 2018-01-22 | 2019-07-25 | 华南理工大学 | Device and method for improving surface quality of slm forming part with integrated double-type laser |
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| CN109878077A (en) * | 2019-02-26 | 2019-06-14 | 湖南华曙高科技有限责任公司 | Increasing material manufacturing equipment and increasing material manufacturing method |
| CN109926584A (en) * | 2019-03-06 | 2019-06-25 | 上海工程技术大学 | A kind of increasing material manufacturing and surface polishing synchronous processing method and device |
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| CN109926584B (en) * | 2019-03-06 | 2022-08-05 | 上海工程技术大学 | Additive manufacturing and surface polishing synchronous processing method and device |
| CN110143021A (en) * | 2019-05-29 | 2019-08-20 | 梁家昌 | A kind of high quality diamond composite sheet and preparation method thereof |
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| CN110586939A (en) * | 2019-10-28 | 2019-12-20 | 华南理工大学 | Blue-green laser micro-melting forming method and device for high-reflection material |
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| CN112247345A (en) * | 2020-09-17 | 2021-01-22 | 华侨大学 | Method for improving hydrophilicity of 3D printing biomaterial formed piece |
| CN112222406A (en) * | 2020-09-23 | 2021-01-15 | 上海材料研究所 | Method for improving surface precision of laser selective melting part on line |
| CN112608035A (en) * | 2020-12-23 | 2021-04-06 | 中国工程物理研究院激光聚变研究中心 | Femtosecond laser modification device of fused quartz element and damage point composite repair method thereof |
| CN113020623A (en) * | 2021-05-27 | 2021-06-25 | 西安赛隆金属材料有限责任公司 | 3D printing forming surface self-adjusting method and device |
| CN113020623B (en) * | 2021-05-27 | 2022-04-08 | 西安赛隆金属材料有限责任公司 | 3D printing forming surface self-adjusting method and device |
| CN113681149A (en) * | 2021-09-18 | 2021-11-23 | 北京航空航天大学 | Closed integral complex inner runner integrated material increase finishing device |
| CN115519785A (en) * | 2022-09-29 | 2022-12-27 | 哈尔滨工程大学 | Micro-nano structure 3D printing system based on optical fiber and printing method thereof |
| CN115519785B (en) * | 2022-09-29 | 2023-11-14 | 哈尔滨工程大学 | Micro-nano structure 3D printing system based on optical fiber and printing method thereof |
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| WO2019140965A1 (en) | 2019-07-25 |
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