CN108127118A - A kind of metal powder laser 3D printing nozzle - Google Patents
A kind of metal powder laser 3D printing nozzle Download PDFInfo
- Publication number
- CN108127118A CN108127118A CN201810052957.9A CN201810052957A CN108127118A CN 108127118 A CN108127118 A CN 108127118A CN 201810052957 A CN201810052957 A CN 201810052957A CN 108127118 A CN108127118 A CN 108127118A
- Authority
- CN
- China
- Prior art keywords
- metal powder
- delivery pipe
- letter shoot
- powder delivery
- central axes
- Prior art date
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 90
- 239000002184 metal Substances 0.000 title claims abstract description 80
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 80
- 238000010146 3D printing Methods 0.000 title claims abstract description 16
- 230000004224 protection Effects 0.000 claims abstract description 51
- 239000007921 spray Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012943 hotmelt Substances 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
-
- 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
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- 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
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of metal powder laser 3D printing nozzle, first annular cavity and the second toroidal cavity are formed on nozzle head, second toroidal cavity is located at the inside of first annular cavity, first annular cavity forms first annular cavities open in the lower part of nozzle head, and the second toroidal cavity forms the second toroidal cavity opening in the lower part of nozzle head;Laser beam focus is on the dot; first metal powder delivery pipe, the second metal powder delivery pipe and third metal powder the delivery pipe circular array centered on the center of circle of the nozzle head of circular cone shape are distributed on nozzle head, and the angle between adjacent protection letter shoot and metal powder delivery pipe is 60 degree.It heats metal powder using laser to realize that 3D printing cures, and the metal powder of hot melt is protected from being aoxidized in inert gas, it is simple in structure, and printing effect is good during practical application.
Description
Technical field:
The present invention relates to 3D printer technical fields, and 3D printing is carried out using metal powder more specifically to a kind of
Nozzle.
Background technology:
3D printing is an emerging technology, and 3D printing technique is for casting industry at present also in the exploratory stage.At present
From the country, the 3D printing nozzle majority that retrieves is heated by the way of the heat block heating, and uses laser hot molten gold
The nozzle of category powder progress 3D printing is seen not yet mutually send patent document.
Invention content:
The purpose of the present invention and provides a kind of metal powder laser 3D printing nozzle aiming at the deficiency of the prior art,
It heats metal powder using laser to realize that 3D printing cures, and the metal powder of hot melt is kept away in the protection of inert gas
Exempt to be aoxidized, it is simple in structure, and printing effect is good during practical application.
The technology solution of the present invention is as follows:
A kind of metal powder laser 3D printing nozzle forms the nozzle head 2 of circular cone shape, nozzle in the lower part of entity 1
First annular 3 and second toroidal cavity 4 of cavity is formed on first 2, the second toroidal cavity 4 is located at the inside of first annular cavity 3,
First annular cavity 3 forms first annular cavities open 31 in the lower part of nozzle head 2, and the second toroidal cavity 4 is under nozzle head 2
Portion forms the second toroidal cavity opening 41;
First protection letter shoot 51, second protect letter shoot 52 and third protection letter shoot 53 with it is first annular
Cavity 3 interlinks, and the first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63 are equal
It interlinking with the second toroidal cavity 4, first annular 3 and second toroidal cavity 4 of cavity is cross section for tapered form, and first
3 and second toroidal cavity 4 of toroidal cavity is the shape reduced gradually from top to bottom;
The centre bore 8 centered on central axes 7 is formed on entity 1 and nozzle head 2, laser beam 9 is worn from centre bore 8
It crosses, three powder of the first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
The angle of delivery pipe central axes 611 and central axes 7 is 15 to 25 degree, and the first protection letter shoot 51, second protects gas conveying
The angle of the three protection letter shoot central axes 511 and central axes 7 of pipe 52 and third protection letter shoot 53 is 15 to 25
Degree;Angle between adjacent protection letter shoot and metal powder delivery pipe is 60 degree;
Three of first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
Powder conduit central axes 611 are collected on a dot, and laser beam 9 is focused on the dot, the first metal powder delivery pipe
61st, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63 are centered on the center of circle of the nozzle head 2 of circular cone shape
Circular array is distributed on nozzle head 2, and the first protection letter shoot 51, second protects letter shoot 52 and third protection gas defeated
Send three of pipe 53 letter shoot central axes 511 is protected to collect on central axes 7 point, the first protection letter shoot
51st, it is in ring centered on the center of circle of the nozzle head 2 of circular cone shape that the second protection letter shoot 52 and third, which protect letter shoot 53,
For shape array distribution on nozzle head 2, the angle between adjacent protection letter shoot and metal powder delivery pipe is 60 degree.
The first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
The angle of three powder conduit central axes 611 and central axes 7 is 20 degree, and the first protection letter shoot 51, second protects gas
The angle of the three protection letter shoot central axes 511 and central axes 7 of delivery pipe 52 and third protection letter shoot 53 is 20
Degree.
The beneficial effects of the present invention are:
It heats metal powder using laser to realize that 3D printing cures, and the metal powder of hot melt is in inert gas
Be protected from aoxidized, it is simple in structure, and printing effect is good during practical application.
Description of the drawings:
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is A --- the A sectional views of Fig. 1;
Fig. 3 is B --- the B sectional views of Fig. 1;
Fig. 4 is C --- the C sectional views of Fig. 1.
In figure:1st, entity;2nd, nozzle head;3rd, first annular cavity;31st, first annular cavities open;4th, the second annular is empty
Chamber;41st, the second toroidal cavity is open;51st, the first protection letter shoot;52nd, the second protection letter shoot;53rd, third protection gas
Delivery pipe;61st, the first metal powder delivery pipe;62nd, the second metal powder delivery pipe;63rd, third metal powder delivery pipe;7th, in
Axis;8th, centre bore;9th, laser beam.
Specific embodiment:
Embodiment:As shown in Fig. 1 to 4, a kind of metal powder laser 3D printing nozzle forms circle in the lower part of entity 1
Pyramidal nozzle head 2 forms first annular 3 and second toroidal cavity 4 of cavity on nozzle head 2, and the second toroidal cavity 4 is located at
The inside of first annular cavity 3, first annular cavity 3 form first annular cavities open 31, the second ring in the lower part of nozzle head 2
Shape cavity 4 forms the second toroidal cavity opening 41 in the lower part of nozzle head 2;
First protection letter shoot 51, second protect letter shoot 52 and third protection letter shoot 53 with it is first annular
Cavity 3 interlinks, and the first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63 are equal
It interlinking with the second toroidal cavity 4, first annular 3 and second toroidal cavity 4 of cavity is cross section for tapered form, and first
3 and second toroidal cavity 4 of toroidal cavity is the shape reduced gradually from top to bottom;
The centre bore 8 centered on central axes 7 is formed on entity 1 and nozzle head 2, laser beam 9 is worn from centre bore 8
It crosses, three powder of the first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
The angle of delivery pipe central axes 611 and central axes 7 is 15 to 25 degree, and the first protection letter shoot 51, second protects gas conveying
The angle of the three protection letter shoot central axes 511 and central axes 7 of pipe 52 and third protection letter shoot 53 is 15 to 25
Degree;Angle between adjacent protection letter shoot and metal powder delivery pipe is 60 degree;
Three of first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
Powder conduit central axes 611 are collected on a dot, and laser beam 9 is focused on the dot, the first metal powder delivery pipe
61st, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63 are centered on the center of circle of the nozzle head 2 of circular cone shape
Circular array is distributed on nozzle head 2, and the first protection letter shoot 51, second protects letter shoot 52 and third protection gas defeated
Send three of pipe 53 letter shoot central axes 511 is protected to collect on central axes 7 point, the first protection letter shoot
51st, it is in ring centered on the center of circle of the nozzle head 2 of circular cone shape that the second protection letter shoot 52 and third, which protect letter shoot 53,
For shape array distribution on nozzle head 2, the angle between adjacent protection letter shoot and metal powder delivery pipe is 60 degree.
The first metal powder delivery pipe 61, the second metal powder delivery pipe 62 and third metal powder delivery pipe 63
The angle of three powder conduit central axes 611 and central axes 7 is 20 degree, and the first protection letter shoot 51, second protects gas
The angle of the three protection letter shoot central axes 511 and central axes 7 of delivery pipe 52 and third protection letter shoot 53 is 20
Degree.
Operation principle:First metal powder delivery pipe 61, the second metal powder delivery pipe 62 and the conveying of third metal powder
Metal powder in pipe 63 flows through first annular cavity 3 and pools together to form a metal powder cone, the first protection gas
Delivery pipe 51, second protects the inert gas that letter shoot 52 and third protection letter shoot 53 eject by this metal powder
Cone wraps up and forms inert gas shielding, and metal powder cone is melted and printed again by laser beam 9.
Claims (2)
1. a kind of metal powder laser 3D printing nozzle, it is characterised in that:The spray of circular cone shape is formed in the lower part of entity (1)
Mouth (2) forms first annular cavity (3) and the second toroidal cavity (4) on nozzle head (2), and the second toroidal cavity (4) is located at
The inside of first annular cavity (3), first annular cavity (3) form first annular cavities open in the lower part of nozzle head (2)
(31), the second toroidal cavity (4) forms the second toroidal cavity opening (41) in the lower part of nozzle head (2);
First protection letter shoot (51), second protection letter shoot (52) and third protect letter shoot (53) with the first ring
Shape cavity (3) interlinks, and the first metal powder delivery pipe (61), the second metal powder delivery pipe (62) and third metal powder are defeated
Pipe (63) is sent to interlink with the second toroidal cavity (4), first annular cavity (3) and the second toroidal cavity (4) are cross section
For tapered form, first annular cavity (3) and the second toroidal cavity (4) are the shape reduced gradually from top to bottom;
Form the centre bore (8) centered on central axes (7) on entity (1) and nozzle head (2), laser beam (9) is from centre bore
(8) it is passed through in, the first metal powder delivery pipe (61), the second metal powder delivery pipe (62) and third metal powder delivery pipe
(63) angle of three powder conduit central axes (611) and central axes (7) is 15 to 25 degree, and first protects letter shoot
(51), three protections letter shoot central axes (511) of the second protection letter shoot (52) and third protection letter shoot (53)
Angle with central axes (7) is 15 to 25 degree;Angle between adjacent protection letter shoot and metal powder delivery pipe is
60 degree;
The three of first metal powder delivery pipe (61), the second metal powder delivery pipe (62) and third metal powder delivery pipe (63)
Root powder conduit central axes (611) are collected on a dot, and laser beam (9) is focused on the dot, the first metal powder
Delivery pipe (61), the second metal powder delivery pipe (62) and third metal powder delivery pipe (63) are with the nozzle head of circular cone shape
(2) circular array is distributed on nozzle head (2) centered on the center of circle, and the first protection letter shoot (51), the second protection gas are defeated
Send pipe (52) and third that three protections letter shoot central axes (511) of letter shoot (53) is protected to collect on central axes (7)
A point on, first protection letter shoot (51), second protection letter shoot (52) and third protect letter shoot (53) with
Circular array is distributed on nozzle head (2) centered on the center of circle of the nozzle head (2) of circular cone shape, adjacent protection letter shoot
Angle between metal powder delivery pipe is 60 degree.
2. a kind of metal powder laser 3D printing nozzle according to claim 1, it is characterised in that:First metal powder is defeated
Send three powder conduit central axes of pipe (61), the second metal powder delivery pipe (62) and third metal powder delivery pipe (63)
(611) it is 20 degree with the angle of central axes (7), the first protection letter shoot (51), the second protection letter shoot (52) and the
Three protections letter shoot central axes (511) of three protection letter shoots (53) and the angle of central axes (7) are 20 degree.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810052957.9A CN108127118A (en) | 2018-01-19 | 2018-01-19 | A kind of metal powder laser 3D printing nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810052957.9A CN108127118A (en) | 2018-01-19 | 2018-01-19 | A kind of metal powder laser 3D printing nozzle |
Publications (1)
Publication Number | Publication Date |
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CN108127118A true CN108127118A (en) | 2018-06-08 |
Family
ID=62399909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810052957.9A Pending CN108127118A (en) | 2018-01-19 | 2018-01-19 | A kind of metal powder laser 3D printing nozzle |
Country Status (1)
Country | Link |
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CN (1) | CN108127118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020120317A1 (en) * | 2018-12-14 | 2020-06-18 | Robert Bosch Gmbh | Print head for 3d printing of metals, device for additively manufacturing three-dimensional workpieces, comprising a print head and method for operating a device |
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CN207823963U (en) * | 2018-01-19 | 2018-09-07 | 浙江万丰科技开发股份有限公司 | A kind of metal powder laser 3D printing nozzle |
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CN2510502Y (en) * | 2001-10-18 | 2002-09-11 | 北京有色金属研究总院 | Laser coating coaxial powder-delivery nozzle |
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CN105862034A (en) * | 2016-06-14 | 2016-08-17 | 浙江工业大学 | Supersonic laser deposition coaxial powder feeding device |
CN107457403A (en) * | 2017-07-05 | 2017-12-12 | 武汉理工大学 | A kind of system and method for the laser 3D printing hot-work die on potassium steel matrix |
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CN107587132A (en) * | 2017-10-19 | 2018-01-16 | 西安中科中美激光科技有限公司 | A kind of multifunctional coaxial powder feeding high-rate laser spray equipment and application |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020120317A1 (en) * | 2018-12-14 | 2020-06-18 | Robert Bosch Gmbh | Print head for 3d printing of metals, device for additively manufacturing three-dimensional workpieces, comprising a print head and method for operating a device |
CN113423523A (en) * | 2018-12-14 | 2021-09-21 | 罗伯特·博世有限公司 | Print head for 3D printing of metal, device for additive manufacturing of three-dimensional workpieces comprising a print head and method for operating a device |
CN113423523B (en) * | 2018-12-14 | 2023-11-10 | 罗伯特·博世有限公司 | Print head for 3D printing of metals, device for additive manufacturing of three-dimensional workpieces comprising a print head, and method for operating a device |
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