CN108339978A - A kind of equipment and sintering process of printing 3D metal materials - Google Patents
A kind of equipment and sintering process of printing 3D metal materials Download PDFInfo
- Publication number
- CN108339978A CN108339978A CN201711487378.9A CN201711487378A CN108339978A CN 108339978 A CN108339978 A CN 108339978A CN 201711487378 A CN201711487378 A CN 201711487378A CN 108339978 A CN108339978 A CN 108339978A
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- CN
- China
- Prior art keywords
- laser
- rotary shaft
- printing
- metal materials
- sintering
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- 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
-
- 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]
-
- 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
- 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
- B22F12/46—Radiation means with translatory movement
-
- 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
-
- 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
-
- 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 discloses a kind of equipment and sintering process of printing 3D metal materials, and the equipment includes：Outer framework, powder supply mechanism, laser, the laser include bearing, the first rotary shaft, rotating arm, third rotary shaft, the 4th rotary shaft, the 5th rotary shaft, the 6th rotary shaft, laser beam emitting head；The powder supply mechanism, laser are installed on inside the outer framework；The laser is 6 axis linkage laser devices, it can be achieved that multi-angle, multi-faceted Laser emission；The second end of first rotary shaft connects the first end of the rotating arm；The sintering process that the metal uses is mainly：A. metal powder is added in powder supply mechanism powder tank；B. powder is uniformly routed on workbench by the scraper of powder supply mechanism；C. start laser to be sintered；The 3D printing equipment uses 6 axis linkage laser devices, it can be achieved that multi-faceted, and the retrofit of printing workpiece is realized in multi-angle sintering.
Description
Technical field
The present invention relates to a kind of 3D printing equipment more particularly to it is a kind of printing 3D metal materials equipment and sintering process,
The equipment belongs to 3D printing field.
Background technology
One kind of 3D printing, that is, rapid shaping technique, it be one kind based on digital model file, with powdered gold
Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing.For metal material rapid shaping
For, 3D printing technique is broadly divided into two classes：One kind is using high energy laser beam directly by metal molten, then cooled and solidified at
Type is known as being completely melt rapid shaping technique, such as：SLM；Another kind of is using low energy laser beam by metal and plastics or can be bonded
Low melting material fusing in material, then utilizes low melting material bonded metal powder compacting, referred to as endless running down quick
Forming technique, such as：SLS.
Selective laser melting is the rapid shaping technique of metal powder, is gone out close to complete fully dense with its energy straight forming
Metal parts, for dimensional accuracy up to 20 1 50 microns, surface roughness has basically reached casting even forging up to 20 1 30 microns
Performance, is a kind of rapid shaping technique of great development prospect, and its application range oneself be extended to aerospace, medical treatment, vapour
The fields such as vehicle, mold.Under current mainstream technology, it is molten that metal parts rapid shaping mainly still concentrates on selective laser
Change.Quickly heating and cooling down but during selective laser melting prepares metal parts, when due to metal forming certainly will cause
Components interior contains larger residual stress, and often plain metal parts shape differs mostly at the time of molding, fixed laser without
Method realizes laser irradiation, causes regional area un-sintered completely, causes the product quality printed unexcellent, while sintering process
Middle sintering process is also one of good factor of product, but most of 3D printing equipment are to laser wave in sintering process at present
Selection, the control of sintering temperature, laser the key factors such as power do not explain, therefore face above series of situation,
The present invention proposes a kind of printing device and sintering process of 3D printing metal material.
Invention content
To achieve the above object, according to one aspect of the present invention, the present invention provides a kind of printing 3D metal materials
Equipment, including：Outer framework, powder supply mechanism, laser, the laser include bearing, the first rotary shaft, rotating arm, third rotation
Shaft, the 4th rotary shaft, the 5th rotary shaft, the 6th rotary shaft, laser beam emitting head；The powder supply mechanism, laser are installed on institute
It states inside outer framework；The laser is 6 axis linkage laser devices, it can be achieved that multi-angle, multi-faceted Laser emission；First rotation
The first end of shaft connects one end of the bearing；The second end of first rotary shaft connects the first end of the rotating arm；
The second end of the rotating arm connects the first end of the third rotary shaft；The second end connection described the of the third rotary shaft
The second end of the first end of four rotary shafts, the 4th rotary shaft connects the first end of the 5th rotary shaft；5th rotation
The second end of shaft connects the first end of the 6th rotary shaft；The second end of 6th rotary shaft connects the Laser emission
Head.Preferably, the laser includes：Bearing；First rotary shaft, the first rotary shaft connects bearing；Rotating arm, the rotation
Turn wall and connect another round end of the first rotary shaft, and can be rotated around the other end；Third rotary shaft, the third rotary shaft rotation
Connect rotating arm；4th rotary shaft, the 4th rotary shaft rotatable connection third rotary shaft, while connecting the 5th rotary shaft；The
Five rotary shafts are embedded in the 4th rotary shaft；6th rotary shaft, the 6th rotation axis connection laser beam emitting head.
Preferably, the bearing is fixed on the outer framework bottom, and 2-3 fuselage position is formed with the powder supply mechanism.
Preferably, the laser of the laser beam emitting head transmitting is high power infrared ray continuity laser.
Other side according to the invention, it is including following the present invention provides a kind of sintering process of printing 3D materials
Step：
A. metal powder is added in the powder tank of powder supply mechanism；
B. powder is uniformly routed on workbench by the scraper of the powder supply mechanism；
C. start 6 axis linkage laser devices to be sintered to form sinter layer.
Preferably, the laser of the 6 axis linkage laser device transmitting is high power infrared ray continuity laser, the 6 axis connection
The optical maser wavelength of the laser of dynamic laser transmitting is 600-1500nm, and aggregation hot spot is less than 500um, movement speed 1-4m/s.
Preferably, the thickness of the sinter layer is between 2-4mm.
Preferably, the sintering includes that first sintering and second are sintered.
As it is further preferred that the first sintering is specially：Heating rate is 5 DEG C/min, is heated to 850-950
DEG C, and 1-2 hours are kept the temperature, first sintering removes the adhesive substance between metal, and metallic particles is made to become powdered rubber；
As it is further preferred that second of sintering is specially：Heating rate is 10 DEG C/min, is warming up to 1400-
1500 DEG C, keep the temperature 2-3 hours.
Compared with the relevant technologies, it is provided by the invention it is a kind of printing 3D metal materials equipment and sintering process have such as
Lower advantageous effect：
3D printing equipment provided by the invention is by being arranged 6 axis linkage laser devices, it can be achieved that multi-angle, multi-azimuth tridimensional three
Dimension printing, it is more flexible more reliable than traditional fixed laser emitter for some tiny workpiece, while the present invention
It is proposed entire sintering process, keep the printing of metal material more high-quality, by two-step sintering technique make the workpiece printed without
Still more it is better than traditional printing device in overall mechanical properties by exterior contour.
Description of the drawings
Fig. 1 is a kind of equipment schematic diagram of printing 3D metal materials；
Fig. 2 is a kind of laser schematic diagram of the equipment of printing 3D metal materials.
In figure：Outer framework 1, powder supply mechanism 2, laser 3, pedestal 4, the first rotary shaft 5, rotating arm 6, third rotary shaft 7,
4th rotary shaft 8, the 5th rotary shaft 9, the 6th rotary shaft 10, laser beam emitting head 11.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
Fig. 1 and Fig. 2 is a kind of equipment schematic diagram of printing 3D metal materials, and figure includes：Outer framework 1, powder supply mechanism 2,
Laser 3, the laser 3 include bearing 4, the first rotary shaft 5, rotating arm 6, third rotary shaft 7, the 4th rotary shaft the 8, the 5th
Rotary shaft 9, the 6th rotary shaft 10, laser beam emitting head 11；The powder supply mechanism 2, laser 3 are installed on inside the outer framework 1；
The laser 3 is 6 axis linkage laser devices, it can be achieved that multi-angle, multi-faceted Laser emission；The first of first rotary shaft 5
End connects one end of the bearing 4；The second end of first rotary shaft 5 connects the first end of the rotating arm 6；The rotation
The second end of arm 6 connects the first end of the third rotary shaft 7；Second end connection the 4th rotation of the third rotary shaft 7
The second end of the first end of shaft 8, the 4th rotary shaft 8 connects the first end of the 5th rotary shaft 9；5th rotation
The second end of axis 9 connects the first end of the 6th rotary shaft 10；The second end of 6th rotary shaft 10 connects the laser
Emitting head 11.
A kind of sintering process of printing 3D materials includes the following steps：
A. metal powder is added in the powder tank of powder supply mechanism；
B. powder is uniformly routed on workbench by the scraper of the powder supply mechanism；
C. start 6 axis linkage laser devices to be sintered to form sinter layer.
The laser of the 6 axis linkage laser device transmitting is high power infrared ray continuity laser, the 6 axis linkage laser device
The optical maser wavelength of the laser of transmitting is 600-1500nm, and aggregation hot spot is less than 500um, movement speed 1-4m/s.Sinter layer
Thickness is between 2-4mm.Sintering includes that first sintering and second are sintered.First sintering is specially：Heating rate is 5
DEG C/min, it is heated to 850-950 DEG C, and keep the temperature 1-2 hours, first sintering removes the adhesive substance between metal, makes metal
Particle becomes powdered rubber；It is sintered for the second time and is specially：Heating rate is 10 DEG C/min, is warming up to 1400-1500 DEG C, keeps the temperature 2-
3 hours.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of equipment of printing 3D metal materials, which is characterized in that including：Outer framework (1), powder supply mechanism (2), laser
(3), the laser (3) includes bearing (4), the first rotary shaft (5), rotating arm (6), third rotary shaft (7), the 4th rotary shaft
(8), the 5th rotary shaft (9), the 6th rotary shaft (10), laser beam emitting head (11)；The powder supply mechanism (2), laser (3) installation
It is internal in the outer framework (1)；The laser (3) is 6 axis linkage laser devices, it can be achieved that multi-angle, multi-faceted Laser emission；
The first end of first rotary shaft (5) connects one end of the bearing (4)；The second end of first rotary shaft (5) connects
The first end of the rotating arm (6)；The second end of the rotating arm (6) connects the first end of the third rotary shaft (7)；It is described
The second end of third rotary shaft (7) connects the first end of the 4th rotary shaft (8), the second end of the 4th rotary shaft (8)
Connect the first end of the 5th rotary shaft (9)；The second end of 5th rotary shaft (9) connects the 6th rotary shaft (10)
First end；The second end of 6th rotary shaft (10) connects the laser beam emitting head (11).
2. the equipment of printing 3D metal materials according to claim 1, which is characterized in that the bearing (4) is fixed on
Outer framework (1) bottom forms 2-3 fuselage position with the powder supply mechanism (2).
3. the equipment of printing 3D metal materials according to claim 1, which is characterized in that the laser beam emitting head (11)
The laser of transmitting is high power infrared ray continuity laser.
4. a kind of sintering process of printing 3D metal materials, which is characterized in that include the following steps：
A. metal powder is added in the powder tank of powder supply mechanism (2)；
B. powder is uniformly routed on workbench by the scraper of the powder supply mechanism (2)；
C. start 6 axis linkage laser devices to be sintered to form sinter layer.
5. the sintering process of printing 3D metal materials according to claim 4, which is characterized in that the 6 axis linkage swashs
The laser of light device transmitting is high power infrared ray continuity laser, the optical maser wavelength of the laser of the 6 axis linkage laser device transmitting
For 600-1500nm, aggregation hot spot is less than 500um, movement speed 1-4m/s.
6. the sintering process of printing 3D metal materials according to claim 4, which is characterized in that the thickness of the sinter layer
Degree is between 2-4mm.
7. the sintering process of printing 3D metal materials according to claim 4, which is characterized in that the sintering includes the
Once sintered and second of sintering.
8. the sintering process of printing 3D metal materials according to claim 7, which is characterized in that the first sintering
Specially：Heating rate is 5 DEG C/min, is heated to 850-950 DEG C, and keep the temperature 1-2 hours, and first sintering removes between metal
Adhesive substance, make metallic particles become powdered rubber.
9. the sintering process of printing 3D metal materials according to claim 7, which is characterized in that second of sintering
Specially：Heating rate is 10 DEG C/min, is warming up to 1400-1500 DEG C, keeps the temperature 2-3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487378.9A CN108339978A (en) | 2017-12-29 | 2017-12-29 | A kind of equipment and sintering process of printing 3D metal materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487378.9A CN108339978A (en) | 2017-12-29 | 2017-12-29 | A kind of equipment and sintering process of printing 3D metal materials |
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| CN108339978A true CN108339978A (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487378.9A Pending CN108339978A (en) | 2017-12-29 | 2017-12-29 | A kind of equipment and sintering process of printing 3D metal materials |
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| CN (1) | CN108339978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421845A (en) * | 2019-08-06 | 2019-11-08 | 岭南师范学院 | A kind of high-precision SLA laser 3D printing machine based on parallel mechanism structure |
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