CN105965018B - A kind of electron beam fuse near net increasing material manufacturing method - Google Patents

A kind of electron beam fuse near net increasing material manufacturing method Download PDF

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Publication number
CN105965018B
CN105965018B CN201610532976.2A CN201610532976A CN105965018B CN 105965018 B CN105965018 B CN 105965018B CN 201610532976 A CN201610532976 A CN 201610532976A CN 105965018 B CN105965018 B CN 105965018B
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platform
electron
profile
main control
control unit
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CN201610532976.2A
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CN105965018A (en
Inventor
郭光耀
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Xi'an Zhirong Metal Printing System Co Ltd
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Xi'an Zhirong Metal Printing System Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING 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
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10Formation of a green body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • 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
    • B33Y10/00Processes of additive manufacturing
    • 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
    • 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

Abstract

The invention discloses a kind of electron beam fuse near net increasing material manufacturing method, this method includes:Part model is generated using computer, and main control unit is imported after making hierarchy slicing processing to part model;Every layer of slice is divided into profile portion and filling part by the main control unit;The main control unit drives filament wire feeder to convey fine wire to carrying platform, while carrying platform being driven to translate, and fine wire is melted in carrying platform using electron beam and forms the profile portion;The main control unit drives crin wire feeder to convey heavy wire to carrying platform, while carrying platform being driven to translate, and heavy wire is melted in carrying platform using electron beam and forms the filling part;It repeats the above steps, until multilayer wall is accumulated to form workpiece.The present invention can improve the processing efficiency and presentation quality of workpiece so that have smaller allowance and accurate appearance and size after workpiece shaping.

Description

A kind of electron beam fuse near net increasing material manufacturing method
Technical field
The present invention relates to increases material manufacturing technology field more particularly to a kind of electron beam fuse near net increasing material manufacturing methods.
Background technology
Increases material manufacturing technology also known as 3D printing or rapid prototyping technology.It is one kind using digital three-dimensional model map file as base Plinth, with metal powder, metal wire material or can adhesiveness plastic or other material, construct object by way of successively stacking accumulation Technology.Fast Forming Technique is widely used in the fields such as mold manufacturing, industrial design, is now increasingly used for some products Direct manufacture, the especially application of some high values, such as hip joint or tooth and some airplane components.
Metal parts method for quickly forming and manufacturing mainly have selective laser sintering (SLS), selective laser fusing (SLM), Laser coaxial powder feeding directly manufactures, electron beam fuse shapes the methods of (EBAM), electron beam selective melting forming (EBM).This is several Kind of method is all in various degree there is limitation, for example several uses laser for the increasing material manufacturing method of heat source and electron beam constituency Fusing forming is all to be used as raw shaping material using metal powder, and metal powder manufacture difficulty needed for these methods is big, it is easy by Not easy to maintain to pollution, use cost is high, and forming efficiency is low, and the forming of electron beam fuse is former as forming using metal wire material Material, although forming speed is fast, forming accuracy is relatively low.
Existing electron beam fuse rapid prototyping technology is all using electron beam as heat source, in base material or last layer fusing accumulation Layer surface forms molten bath, and wire is sent into molten bath fusing and realizes the Fast Forming Technique successively accumulated.Due to liquid Metallic surface tension, the edge of stack layer has been not neat plane, but is made of many arc-shaped metallic spheric surfaces recessed The surface of convex injustice.In general, pool size more great circle arcuation metallic spheric surface will be bigger, that is, accumulate the uneven journey of layer surface Degree is also bigger.If selecting thinner welding wire, it is formed by pool size very little, stack layer surface quality is good, but forming efficiency It is really very low.If selecting thicker welding wire, the efficiency stack layer rough surface that is very high, but being formed of fusing forming accumulation, outside It sees poor, it usually needs more machine-finish allowance is stayed just to can guarantee the effective dimensions of workpiece.In short, fast using general purpose fuse Fast former can not take into account forming surface quality and two aspect factor of forming efficiency, and the near net that cannot achieve metal material increases material Manufacture.
Invention content
The technical problem to be solved in the present invention is, in view of the deficiencies of the prior art, provides a kind of electron beam fuse near net Increasing material manufacturing method improves the processing efficiency and presentation quality of workpiece using this method so that has after workpiece shaping smaller Allowance and accurate appearance and size.
In order to solve the above technical problems, the present invention adopts the following technical scheme that.
A kind of electron beam fuse near net increasing material manufacturing method, this method realize that described device includes one based on a device Vacuum chamber, a carrying platform, an electron gun, a filament wire feeder, a crin wire feeder and a main control unit, the method Including having the following steps:Step S1 generates part model using computer, and is imported after doing hierarchy slicing processing to part model Main control unit;Every layer of slice is divided into positioned at the profile portion at edge and in the profile portion by step S2, the main control unit Filling part;Step S3, the main control unit drive electron gun to carrying platform launching electronics beam;Step S4, the master control list Member driving filament wire feeder conveys fine wire to carrying platform, while carrying platform being driven to translate, will be thin using electron beam Wire is melted in carrying platform and forms the profile portion;Step S5, the main control unit drive crin wire feeder to holding Carrying platform conveys heavy wire, while carrying platform being driven to translate, heavy wire is melted in carrying platform using electron beam and Form the filling part;Step S6, when one layer of slice processing is completed, the main control unit driving carrying platform corresponds to the layer of slice Number declines one layer;Step S3 to step S6 is repeated, until multilayer wall is accumulated to form workpiece.
Preferably, further include having vacuum device, for extracting the indoor air of vacuum out, formed very with enabling in vacuum chamber Absolutely empty.
Preferably, the carrying platform include platform, for drive the translation mechanism that platform moves in the horizontal direction with And the elevating mechanism for driving platform to move up and down.
Preferably, the profile portion of the slice is multilayer, the longitudinal stacking successively from outside to inside of multilayer profile portion.
Preferably, the profile portion of the slice is multilayer, the laterally stacking successively from down to up of multilayer profile portion.
Preferably, the main control unit drives the filament wire feeder thin to carrying platform conveying with First Speed Wire, the main control unit drive the crin wire feeder to convey heavy wire with second speed.
Preferably, the main control unit drives the carrying platform to be translated with the first scan mode to utilize electron beam will be thin Wire is melted in carrying platform and forms the profile portion, and the main control unit drives the carrying platform with the second scanning side Formula translation forms the filling part so that heavy wire is melted in carrying platform using electron beam, and first scan mode is Clockwise or counterclockwise along the mode of the profile of slice translation, second scan mode includes clockwise/counterclockwise edge Mode that the profile of the slice translates in the profile portion, the mode translated by row in the profile portion, and in institute State at least one of the mode of snakelike translation in profile portion.
Preferably, the thickness of the profile portion and the number of plies are straight according to the material and wire of heavy wire and fine wire Diameter is configured.
In electron beam fuse near net increasing material manufacturing method disclosed by the invention, when carrying out layered shaping to workpiece, every The edge of layer slice is provided with profile portion, and every layer of slice is located at the part within profile portion and is provided with filling part, increases material printing When, carrying platform presses the trajectory-offset of profile portion first, while electron beam melts fine wire, and then heap on the carrying platform Product forms profile portion, and carrying platform presses the trajectory-offset of filling part later, while electron beam melts heavy wire, and then is taking turns Accumulation forms filling part on the inside of wide portion, forms slice by profile portion and filling part, repeats the above process and successively processed, most After form workpiece.The present invention processes slicing profile first with fine wire, and heavy wire is recycled to carry out internal filling to slice, This processing method reduces the concave-convex degree of workpiece surface, not only increases the aesthetics of workpiece appearance, also carries on the whole High processing efficiency so that there is smaller allowance and accurate appearance and size after workpiece shaping.
Description of the drawings
Fig. 1 is the flow chart of electron beam fuse near net increasing material manufacturing method of the present invention.
Fig. 2 is the apparatus structure schematic diagram for realizing the method for the present invention.
Fig. 3 is the structural schematic diagram of workpiece.
Fig. 4 is the piece cutting structure schematic diagram in first embodiment of the invention.
Fig. 5 is the piece cutting structure schematic diagram in second embodiment of the invention.
Specific implementation mode
The present invention is described in more detail with reference to the accompanying drawings and examples.
First it should be noted that the words such as " thick " that is previously mentioned in the present embodiment, " thin " are opposite concept rather than certain tool Body size, using these words be intended merely to it is clearer, expressly illustrate technical scheme of the present invention, be not limited to this The protection domain of invention.
The invention discloses a kind of electron beam fuse near net increasing material manufacturing methods, in conjunction with shown in Fig. 1 to Fig. 3, this method base Realize that described device includes a vacuum chamber 1, a carrying platform 2, an electron gun 3, a filament wire feeder 4, one in a device Crin wire feeder 5 and a main control unit 6, the method includes having the following steps:
Step S1 generates part model using computer, and imports master control list after doing hierarchy slicing processing to part model Member 6;
Step S2, the main control unit 6 is by every layer of 10 points of slice for positioned at the profile portion 11 at edge and positioned at profile portion 11 Interior filling part 12;
Step S3, the main control unit 6 drive electron gun 3 to 2 launching electronics beam of carrying platform;
Step S4, the main control unit 6 drive filament wire feeder 4 to convey fine wire to carrying platform 2, drive simultaneously Carrying platform 2 translates, and fine wire is melted in carrying platform 2 using electron beam and forms the profile portion 11;
Step S5, the main control unit 6 drive crin wire feeder 5 to convey heavy wire to carrying platform 2, drive simultaneously Carrying platform 2 translates, and heavy wire is melted in carrying platform 2 using electron beam and forms the filling part 12;
Step S6, when one layer of slice 10 machines, the main control unit 6 drives the layer of the correspondence of carrying platform 2 slice 10 Number declines one layer;
Step S3 to step S6 is repeated, until the accumulation of multilayer wall 10 forms workpiece 100.
In above-mentioned electron beam fuse near net increasing material manufacturing method, when carrying out layered shaping to workpiece, 10 are sliced at every layer Edge be provided with profile portion 11, every layer slice 10 be located at profile portion 11 within part be provided with filling part 12, increase material beat When print, carrying platform 2 presses the trajectory-offset of profile portion 11 first, while electron beam melts fine wire, and then flat in carrying Accumulation forms profile portion 11 on platform 2, and carrying platform 2 presses the trajectory-offset of filling part 12 later, while electron beam is by heavy wire Melting, and then filling part 12 is formed in 11 inside accumulation of profile portion, slice 10 is formed by profile portion and filling part, repeats above-mentioned mistake Journey and successively processed, eventually form workpiece 100.The present invention processes slicing profile first with fine wire, recycles thick gold Belong to silk and internal filling is carried out to slice, this processing method reduces the concave-convex degree on 100 surface of workpiece, not only increases workpiece The aesthetics of appearance, also improves processing efficiency on the whole so that with smaller allowance and accurately after workpiece shaping Appearance and size.
Preferably, main control unit 6 drives the filament wire feeder 4 to convey thin metal to carrying platform 2 with First Speed Silk, main control unit 6 drive crin wire feeder 5 to convey heavy wire with second speed, and under normal circumstances, First Speed is more than institute State second speed.
Further, main control unit 6 drives carrying platform 2 to be translated with the first scan mode to utilize electron beam by thin metal Silk is melted in carrying platform 2 and forms profile portion 11, and main control unit 6 drives carrying platform 2 to be translated with profit with the second scan mode Heavy wire is melted in carrying platform 2 with electron beam and forms filling part 12, the first scan mode is clockwise or counterclockwise Along the mode of the profile translation of slice 10, the second scan mode includes the profile of clockwise/counterclockwise edge slice 10 in profile portion The mode translated in 11, the mode translated by row in profile portion 11, and in profile portion 11 in the mode of snakelike translation It is at least one.
Further, fine wire and the diameter of heavy wire can according to the shape of Forming Workpiece, dimension precision requirement, at The characteristic of shape efficiency requirements and material determines.The thickness of the profile portion 11 and the number of plies are according to heavy wire and fine wire Material and wire diameter are configured.And then meet different processing requests.
In order to provide vacuum processing environment, the present embodiment further includes having vacuum device 7, is used for the sky in vacuum chamber 1 Gas is extracted out, and vacuum space is formed in vacuum chamber 1 to enable.The electron beam that electron gun exports in the space is high energy beam current.Into one Step ground, vacuum device 7 can be made of components such as vacuum pump, valve, temperature and pressure transmitter original paper and pipelines.
Further, the carrying platform 2 includes platform, the translation mechanism for driving platform to move in the horizontal direction And the elevating mechanism for driving platform to move up and down.Wherein, the translation of platform in the horizontal direction can be understood as along X-Y axis The translation in direction, platform vertically move the vertical lifting that can be understood as along Z-direction.
During actual processing, since profile portion is different with the wire fineness used in filling part, in order to enable wheel The thickness in wide portion can be consistent with filling part, needs fine wire carrying out multiple-level stack, specifically refers to following two preferably Embodiment:
As the first preferred embodiment, Fig. 4 is please referred to, the profile portion 11 of the slice 10 is multilayer, multilayer profile portion 11 longitudinal stackings successively from outside to inside.
As second of preferred embodiment, Fig. 5 is please referred to, the profile portion 11 of the slice 10 is multilayer, multilayer profile portion 11 laterally stackings successively from down to up.
Further, main control unit can be by groups such as industrial computer, PLC PLC technologies, digital control system, power-supply systems At.Electron beam fuse near net increasing material manufacturing method disclosed by the invention, the profile region for using fine wire fused deposition to be formed Domain reaches higher dimensional accuracy and surface quality as boundary stack layer, uses heavy wire to accumulate profile portion later Inside and form internal filled layer, the forming efficiency of workpiece greatly improved.It, can be simultaneous simultaneously when producing workpiece using the present invention Preferable surface quality and higher production efficiency are cared for, compared with using the monofilament electron beam fuse former of same filament, Production efficiency of the present invention can be improved 4 times.
The above is preferred embodiments of the present invention, is not intended to restrict the invention, all technology models in the present invention Interior done modification, equivalent replacement or improvement etc. are enclosed, should be included in the range of of the invention protect.

Claims (6)

1. a kind of electron beam fuse near net increasing material manufacturing method, which is characterized in that this method is based on device realization, described device Include a vacuum chamber, a carrying platform, an electron gun, a filament wire feeder, a crin wire feeder and a main control unit, The method includes having the following steps:
Step S1 generates part model using computer, and imports main control unit after doing hierarchy slicing processing to part model;
Every layer of slice is divided into the profile portion positioned at edge and the filling in the profile portion by step S2, the main control unit Portion, the profile portion of the slice are multilayer, the longitudinal stacking or from down to up transverse layers successively successively from outside to inside of multilayer profile portion It is folded;
Step S3, the main control unit drive electron gun to carrying platform launching electronics beam;
Step S4, the main control unit drive filament wire feeder to convey fine wire to carrying platform, while driving carrying flat Fine wire is melted in carrying platform using electron beam and forms the profile portion by stage translation;
Step S5, the main control unit drive crin wire feeder to convey heavy wire to carrying platform, while driving carrying flat Heavy wire is melted in carrying platform using electron beam and forms the filling part by stage translation;
Step S6, when one layer of slice processing is completed, the number of plies that the main control unit driving carrying platform corresponds to slice declines one layer;
Step S3 to step S6 is repeated, until multilayer wall is accumulated to form workpiece.
2. electron beam fuse near net increasing material manufacturing method as described in claim 1, which is characterized in that further include having evacuator Structure forms vacuum space for extracting out the indoor air of vacuum to enable in vacuum chamber.
3. electron beam fuse near net increasing material manufacturing method as described in claim 1, which is characterized in that the carrying platform includes There are platform, the translation mechanism for driving platform to move in the horizontal direction and the elevator for driving platform to move up and down Structure.
4. electron beam fuse near net increasing material manufacturing method according to claim 1, which is characterized in that the main control unit drives It moves the filament wire feeder and fine wire is conveyed to the carrying platform with First Speed, the main control unit driving is described thick Silk wire feeder different from the second speed of the First Speed to convey heavy wire.
5. electron beam fuse near net increasing material manufacturing method according to claim 4, which is characterized in that the main control unit drives It moves the carrying platform and institute is formed so that fine wire is melted in carrying platform using electron beam with the translation of the first scan mode Profile portion is stated, the main control unit drives the carrying platform to be translated with the second scan mode to utilize electron beam by heavy wire It is melted in carrying platform and forms the filling part, first scan mode is clockwise or counterclockwise along the wheel of the slice The mode of exterior feature translation, second scan mode include clockwise/counterclockwise along the slice profile in the profile portion The mode of translation, the mode translated by row in the profile portion, and in the profile portion in the mode of snakelike translation It is at least one.
6. electron beam fuse near net increasing material manufacturing method as described in claim 1, which is characterized in that the thickness of the profile portion It is configured according to the material and wire diameter of heavy wire and fine wire with the number of plies.
CN201610532976.2A 2016-07-07 2016-07-07 A kind of electron beam fuse near net increasing material manufacturing method Active CN105965018B (en)

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CN106256473B (en) * 2016-10-20 2018-08-03 中国科学院重庆绿色智能技术研究院 A kind of Laser Rapid Prototyping System and method for aluminium wire
CN106424732B (en) * 2016-12-01 2018-11-13 西安智熔金属打印系统有限公司 A kind of electron beam fuse increasing material manufacturing device
CN108372355B (en) * 2016-12-20 2020-07-17 中国航空制造技术研究院 Electron beam fuse wire additive manufacturing device and method for realizing preparation of gradient material
CN107838532B (en) * 2017-10-25 2020-02-04 扬州大学 Bimetal cladding additive manufacturing method
CN107790866A (en) * 2017-11-09 2018-03-13 攀钢集团攀枝花钢铁研究院有限公司 Bimetallic electron beam fuse increasing material manufacturing method
GB201718597D0 (en) * 2017-11-10 2017-12-27 Renishaw Plc Spatial mapping of sensor data collected during additive manufacturing
CN110303225B (en) * 2019-06-05 2020-06-02 华中科技大学 Multi-arc gun additive manufacturing system and method

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CN101670432B (en) * 2009-07-14 2011-02-16 黑龙江科技学院 New method used for realizing powder melting and forming based on laser scanning
CN106662439B (en) * 2014-06-05 2019-04-09 联邦科学和工业研究组织 The prediction and minimum deformed in increasing material manufacturing
UA112682C2 (en) * 2014-10-23 2016-10-10 Приватне Акціонерне Товариство "Нво "Червона Хвиля" A METHOD OF MANUFACTURING THREE-DIMENSIONAL OBJECTS AND DEVICES FOR ITS IMPLEMENTATION
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CN205202199U (en) * 2015-12-02 2016-05-04 天津博睿孚科技有限公司 Many shower nozzles of 3D printer heating structure

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Denomination of invention: Manufacturing method for electronic beam fuse wire near-net additive material

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