CN108127118A - A kind of metal powder laser 3D printing nozzle - Google Patents

A kind of metal powder laser 3D printing nozzle Download PDF

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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
Application number
CN201810052957.9A
Other languages
Chinese (zh)
Inventor
吴文杰
石旗勇
杨勇
吴锦华
周裕庚
孔祥斌
吴俊灏
陈勇
俞桂英
郑建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Wanfeng Technology Development Co Ltd
Original Assignee
Zhejiang Wanfeng Technology Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Wanfeng Technology Development Co Ltd filed Critical Zhejiang Wanfeng Technology Development Co Ltd
Priority to CN201810052957.9A priority Critical patent/CN108127118A/en
Publication of CN108127118A publication Critical patent/CN108127118A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus 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
    • B22F12/50Means for feeding of material, e.g. heads
    • B22F12/53Nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • B22F10/25Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30Process control
    • B22F10/32Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • 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

A kind of metal powder laser 3D printing nozzle
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.
CN201810052957.9A 2018-01-19 2018-01-19 A kind of metal powder laser 3D printing nozzle Pending CN108127118A (en)

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

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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)

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CN108127118A true CN108127118A (en) 2018-06-08

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Cited By (1)

* Cited by examiner, † Cited by third party
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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CN105734560A (en) * 2016-04-05 2016-07-06 南京先进激光技术研究院 Eight-way coaxial powder feeding nozzle for double-layer gradient laser material increase manufacturing
CN105862034A (en) * 2016-06-14 2016-08-17 浙江工业大学 Supersonic laser deposition coaxial powder feeding device
CN107287590A (en) * 2017-08-10 2017-10-24 大连理工大学 The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle
CN107303607A (en) * 2016-04-22 2017-10-31 中国科学院沈阳自动化研究所 A kind of powder feeding formula laser 3D printing optical fiber feeding head
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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
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
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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US4724299A (en) * 1987-04-15 1988-02-09 Quantum Laser Corporation Laser spray nozzle and method
CN1142794A (en) * 1994-01-27 1997-02-12 铬合金气体涡轮公司 Laser/powder metal coat spray head
CN2510502Y (en) * 2001-10-18 2002-09-11 北京有色金属研究总院 Laser coating coaxial powder-delivery nozzle
CN2707772Y (en) * 2004-06-15 2005-07-06 华南理工大学 Ring type coaxial laser cladding nozzle
CN101342640A (en) * 2007-07-11 2009-01-14 中国科学院沈阳自动化研究所 Coaxial powder feeding system for preparing functionally graded material by laser rapid prototyping
CN201068470Y (en) * 2007-08-03 2008-06-04 北京工业大学 Laser cladding working head suitable for cladding layer performance gradient change
CN101468393A (en) * 2007-12-26 2009-07-01 沈阳航空工业学院 Metal powder feed apparatus of metal powder laser forming system
CN101264519A (en) * 2008-04-08 2008-09-17 西安交通大学 Adjustable laser coaxial powder feeding nozzle
CN104703747A (en) * 2012-10-01 2015-06-10 西门子公司 Powder nozzle for a laser powder welding device
CN103952696A (en) * 2014-04-14 2014-07-30 北京工业大学 Rapid forming method used for direct preparation of titanium alloy parts in air
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CN105127415A (en) * 2015-10-19 2015-12-09 北京化工大学 Metal 3D printing and fast prototyping device
CN105499573A (en) * 2016-01-21 2016-04-20 鞍山德威亚激光科技有限公司 3D laser printing system and method based on robot
CN105734560A (en) * 2016-04-05 2016-07-06 南京先进激光技术研究院 Eight-way coaxial powder feeding nozzle for double-layer gradient laser material increase manufacturing
CN107303607A (en) * 2016-04-22 2017-10-31 中国科学院沈阳自动化研究所 A kind of powder feeding formula laser 3D printing optical fiber feeding head
DE102016006551A1 (en) * 2016-05-25 2017-11-30 Rüdiger Ufermann ,, 3D print head for powdery substances "
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
CN107287590A (en) * 2017-08-10 2017-10-24 大连理工大学 The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle
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
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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