CN106312069A - Melt pool control method for additive manufacturing - Google Patents
Melt pool control method for additive manufacturing Download PDFInfo
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- CN106312069A CN106312069A CN201611044945.9A CN201611044945A CN106312069A CN 106312069 A CN106312069 A CN 106312069A CN 201611044945 A CN201611044945 A CN 201611044945A CN 106312069 A CN106312069 A CN 106312069A
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/80—Data acquisition or data processing
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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
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- 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
- B22F10/10—Formation of a green body
- B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
-
- 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
- B22F10/22—Direct deposition of molten metal
-
- 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]
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention relates to the field of three-dimensional additive forming of metal materials, in particular to a melt pool control technology of an electric arc additive forming method and a fused deposition additive manufacturing method. The melt pool control method is characterized in that a frame or profile can limit molten metal to flow and is built at the edge of a melt pool by the aid of other materials, and flow of liquid metal is restrained by the aid of surface tension of the liquid metal and repulsion among the liquid metal and the other materials. When metal materials are formed, and a melt pool can vibrate by the aid of a vibration module mounted on a forming table, so that the liquid metal can be uniformly spread in an area restrained by the profile.
Description
Technical field
The present invention relates to metal material three-dimensional material forming field, more detail is a kind of electric arc material method of forming and melt
Thaw collapse amasss the molten bath control technology of material autofrettage.
Background technology
Recently as the progress of science, " metal material three-dimensional increases material manufacturing technology " has obtained quick vigorous growth,
Present technology can directly manufacture metal parts, but its shortcoming is also apparent from, and its shortcoming is as follows:
1, expensive；
2, shaping speed is slow；
3, inside and the microstructure of article shaped are the tightst.
These defects seriously govern the development of " metal material three-dimensional increases material manufacturing technology ", with electric arc as thermal source, thread
Metal material is that the electric arc material manufacturing technology manufacturing material can solve these problems completely.
Electric arc increasing material manufacturing technology WAAM, with electric arc for carrying beam, uses the mode of successively built-up welding to manufacture metal solid structure
Part, this technology is based primarily upon the solder technology such as TIG, MIG, SAW and develops, and formation of parts is made up of full weld seam, chemical composition
Uniformly, consistency high, open shaping environment is unrestricted to size of formed part, and shaping rate is up to several kg/h, but electric arc increases material
The piece surface fluctuation manufactured is relatively big, and drip molding surface quality is relatively low, it is generally required to the machining of secondary surface, compares sharp optical, electrical
Sub-Shu Zengcai manufactures, and electric arc increases the low cost that the main application target of material manufacturing technology is large scale complex component and increases material molding.
Although the three-dimensional increasing material molding that can carry out in electric arc melting material forming technique under certain required precision, but depend on
The problem that so cannot be fully solved the serious laminated striation caused due to the mobility of liquid metal, is allowed to complete thin-walled and multiple
The material molding of miscellaneous part manufactures.
Summary of the invention
The invention provides a kind of method, it is possible to the electric arc improving the three-dimensionally shaped thing with thread metal material as core increases
The shortcoming of material manufacturing technology WAAM laminated striation serious with in Deformation In The Fdm Process technology FDM or similar method, it it is critical only that
Use other materials to build a housing that can limit molten metal flowing or profile at melt tank edge, utilize the table of liquid itself
Surface tension and the repulsion to other materials, the flowing of constraint liquid metal.When carrying out the molding of metal material, workbench is pacified
Molten bath can be shaken and make liquid metal can spread out uniformly in the region retrained by profile by the shock module of dress.This
Method is particularly suitable for when material forming step when being metal material and other molding of liquid is the material of liquid.It " is beaten
Be printed as type " article shaped can be the 3 d part of any purposes.
The present invention based on the insight that
One, the molding of a three-dimensionally shaped thing is divided into two shapes are relevant but two parts that function is different, carries out different former
The molding manufacture of reason；
Two, the profile profit that a upper surface open side is closed or vertical is closed is utilized when metal material three-dimensional material molding
With the repulsion between surface tension and the different materials of liquid, the vertical trickling of molten metal is controlled；
Three, vibrations are utilized to make liquid metal can uniformly spread out in the range of profile is retrained；
Four, after completing molding, external contoured material is removed retaining interior solid material.
Technical problem solved by the invention realizes by the following technical solutions；
1, during section, one threedimensional model is divided into inside and outside contour model and interior physical model.Become in order to be shaped the material of thing
Type；
2, a threedimensional model is divided into inside and outside contour model and interior physical model, respectively with the moulded head that different materials is different
Be shaped, moulded head may be mounted at can also be arranged on same coaster and effector two completely self-contained coasters and
On effector；
3, use the molding of the inside and outside contour model that a kind of material facilitating the later stage to remove first carries out a layer and solidify to form one
Individual vertical sealing surface, then carries out the molding of interior physical model, and the sealing surface utilizing profile to be formed retrains liquid molten
The trickling of molten metal；
4, the device of generation vibrations is installed on workbench, utilizes vibrations to make molten metal uniformly can spread out in profile；
5, inside and outside contour material is removed entity in reservation after the molding completing three-dimensionally shaped thing.
The described molding by a three-dimensionally shaped thing is divided into that two shapes are relevant but two parts that function is different are carried out not
Refer to the molding of principle: model is compiled after obtaining digital three-dimensional model two parts again, and one is outline portion, separately
One is model itself.
The described molding manufacture carrying out different principle refers to: due to outline and the purposes of interior entity, material and molding
Principle is different, it is necessary to use different moulded heads and different forming principles to manufacture.Citing: outline is pottery, interior reality
Body is metal.The material that outline molding is used is porcelain mud, needs extrusion and heat drying, make during interior entity shaping during molding
With tinsel, the molding after cooling of electric arc melting tinsel during molding, can be used.Inside and outside contour and interior entity, foreign steamer in molding
The wide material used is not melted in the forming technique of the material that interior molding entity uses, inside and outside contour and interior entity the most not
With, being exemplified as in actual applications: inside and outside contour is made up of ceramic powders, and interior entity is to be made of metal, tie in molding
The inside and outside contour made by pottery after bundle can be obtained by the three-dimensionally shaped thing of metal material after removing.The molding of each layer
Entity in first molding inside and outside contour reshaping in journey, due to pottery mutually can not merge in metal and also can be high temperature resistant, at height
Thus can retrain the trickling of the vertical direction of molten metal with fast setting under temperature environment.
The moulded head that said two is different refers to: due to outline and the forming principle of interior entity, moulding material, molding skill
The difference of art, it is impossible to use same moulded head, so two forming steps must be separated into two forming principles, shape, positions
Put the moulded head the most different with function.
The described profile utilizing a upper surface open side to close when metal material the is three-dimensionally shaped stream to molten metal
Drop down and be controlled referring to: first make one of them moulded head exotic material such as pottery when carrying out metal material three-dimensional and increasing material molding
Ceramic material, first carries out the material molding of the profile of this layer, and its profile includes Internal periphery and outline.The effect of profile is:
Utilize the repulsion between the surface tension of liquid and different materials that the vertical trickling of molten metal is controlled.
The molding of described interior entity shaping refers to: use metal wire material with electric arc material manufacturing technology, Deformation In The Fdm Process
Technology or other metal materials when material manufactures are that the material of liquid flowing manufactures forming technique, and the advantage of these technology is
The metal material that low cost, shaping speed are fast, use is extensive, and shortcoming is that low precision, laminated striation are serious.
Described vibrations are produced by being arranged on vibration motor on workbench, voice coil motor or supersonic generator, and its frequency is not
Limit is adjusted according to the characteristic of metal material.
Described interior entity refers to the three-dimensionally shaped thing manufactured in [ii] operation, is also the article shaped finally needing to obtain.
Described outline refers to the three-dimensionally shaped thing manufactured in [i] operation, and it act as:
1, metal bath is retrained, prevent the uncontrolled flowing of the moulding material being melted in [ii] operation；
2, the article shaped surface preventing [ii] operation from manufacturing is the most oxidized；
3, the article shaped for manufacturing in [ii] operation is incubated, and reduces the temperature difference at its each position；
4, be [ii] operation manufacture molding provide support, can be with correct forming with some hanging parts.
Accompanying drawing explanation
Fig. 1 is the structural representation of machine principle；
Fig. 2 is the forming step schematic diagram of three-dimensionally shaped thing；
Fig. 3 is process and the schematic diagram of section of three-dimensional digital model；
Fig. 4 is the schematic diagram of this patent forming process；
Entity shaping head 6 article shaped 7 Internal periphery 8 outline 9 in 14 contoured 5, motor 2 screw mandrel slide unit 3 coaster in figure
Interior entity 10 workbench 11 electromagnetic shaker.
Detailed description of the invention
Below in conjunction with diagram, the present invention will be described with instantiation.
Entity shaping head order repeatedly in NC Motion System drives 4 contoured heads and 5 when three-dimensionally shaped thing molding
Carry out operation [i], operation [ii], until then the complete molding of three-dimensionally shaped thing carry out operation [iii], NC Motion System by
1 motor 2 screw mandrel slide unit 3 coaster composition.First carry out [i] operation when every layer of slicing layer molding and carry out [ii] operation again,
When [ii] operation of each layer completes, NC Motion System can rise one layer, to carry out the molding of next layer.When 6 article shaped are complete
When becoming the molding in mathematical model, NC Motion System playback, also by 6 article shaped removals, carries out in then [iii] operation obtain 9
Entity, operation [i] is shaped making by 4 contoured heads, and operation [ii] is made by entity shaping head in 5.
[i] operation is contoured operation.
When 4 contoured heads are moved to specify position by NC Motion System, 4 contoured heads can spray porcelain mud.This
Individual process is that continuous print NC Motion System drives 4 contoured heads constantly to move, 4 contoured continuous print ejection porcelain mud
Until 7 Internal periphery of this layer and 8 outlines complete forming process, porcelain mud is understood oneself solidification in molding space and is dried or can
Solidification measure is assisted to accelerate its dry solidification to increase in molding space.
[ii] operation is interior entity shaping operation.
When [i] operation completes, 4 contoured heads are removed, and in 5, entity shaping head is moved into place by NC Motion System,
When in NC Motion System is by 5, entity shaping head moves into place, in 5, entity shaping head sprays molten metal or sends metal
Silk, under the effect of thermal source, tinsel can be fused into the metal filled of liquid and specify position the cooling when moulded head is removed
Solidification, this process is that continuous print NC Motion System drives entity in entity shaping head constantly moves to form 9 in 5,5
Interior entity shaping head also continuous print is to specifying position to send into tinsel or molten metal, and thermal source can heat always or enter with certain frequency
Row has the heating of interval time, in order to maintain the condition of high temperature in molten bath.The molten metal in molten bath is due to 7 Internal periphery and 8 outlines
Existence will not be trickled everywhere.The work of 11 electromagnetic shakers installed on 10 workbenches in this operation makes the filling of molten metal more equal
Even.As [ii] if needing to continue molding when operation completes to carry out [i] operation the most again, when 6 article shaped complete in mathematical model
Molding time NC Motion System playback and by 6 article shaped removal, carry out [iii] operation.
The removal of [iii] contoured material.
When 6 article shaped molding complete and cool down completely, by 6 article shaped removals, by entity and the material of 8 outlines in 7
Remove and can be obtained by entity in required 9.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.The scope of protection of present invention by appending claims and
Its equivalent defines.
Claims (10)
1. one kind increases the molten bath control method that material manufactures, it is characterised in that: at electric arc three-dimensional material forming technique (WAAM), hot melt
Pile up the increasing manufacture process or method that metal material in forming process such as forming technique (FDM) etc. is liquid flowing introduces right
The flow process that molten bath carries out retraining is to reduce surface roughness and laminated striation, and it it is critical only that use other materials is built at melt tank edge
One housing that can limit molten metal flowing or profile, utilize the surface tension of liquid itself and the repulsion to other materials,
The flowing of constraint liquid metal, molten bath can be shaken by the shock module installed on workbench when carrying out the molding of metal material
Moving makes liquid metal can uniformly spread out in the region retrained by profile, and this method is particularly suitable for when material forming step
Being the material of liquid during for metal material and other molding of liquid, the article shaped of its " printing shaping " can be any use
The 3 d part on way, concrete principle is as follows;
One, the molding of a three-dimensionally shaped thing is divided into two shapes are relevant but two parts that function is different carry out different principle
Molding, during section, one threedimensional model is divided into inside and outside contour model and interior physical model, in order to carry out same article shaped
Material molding;
Molten metal is hung down by the profile two, utilizing a upper surface open vertical to close when metal material three-dimensional material molding
Direct current drops down and is controlled, and a threedimensional model is divided into inside and outside contour model and interior physical model, respectively with different materials not
With moulded head be shaped, use the molding of the inside and outside contour model that a kind of material facilitating the later stage to remove first carries out a layer with
And solidify to form a vertical sealing surface, then carry out the molding of interior physical model, utilize sealing surface that profile formed with
And the uncontrolled flowing of the molten metal of the repelling effect constraint liquid molten of metal liquid and outline material, moulded head can be pacified
It is contained on same coaster, effector and can also be arranged on two completely self-contained coasters, effectors, carrying out interior entity one-tenth
Have shaking device during type to be operated, so that the molten metal in molten bath uniformly trickles in profile restriction range；
Three, inside and outside contour material is removed entity in reservation after the molding completing three-dimensionally shaped thing;
Its core process specifically can also be described as below scheme:
[i], when carrying out material and manufacturing, system first carries out the contoured of this slicing layer, specifically uses one to be resistant to currently
The material that extreme environment will not merge with interior solid material again carries out molding and the solidification of profile, and profile includes Internal periphery and foreign steamer
Wide；
[ii] carries out the material molding of entity in this layer, profit according to code after [i] operation completes in the range of profile crosses
With closed outline constraint freely trickling by electric arc or other heater means molten metals；
The two above operation that repeats of [iii] order completes molding until object, is finally removed completely by contoured material
To three-dimensionally shaped thing；
For complicated shape during molding, [i] operation can also carry out certain support to unsettled position makes it
Can be by correct molding；
Use the manufacture of two or more article shaped when carrying out inside and outside contour molding and Internal periphery molding, moulded head can
Can also alternating movement with linkage.
2. one kind increases the molten bath control method that material manufactures, it is characterised in that: this layer is first carried out when carrying out the molding of slicing layer
The molding of profile, uses profile to retrain the flowing of material of fusing during molding so that it is not to other molding positions
Trickling, it is ensured that the surface smoothness of its vertical surface, the effect of inside and outside contour is incessantly to support three-dimensionally shaped thing, also resides in
Material when internally entity manufactures carries out repelling and retraining, and carries out contoured material and does not merges with interior solid material or impact
The molding effect of interior solid material, and extreme environment when internal material is shaped can be born, permissible after completing molding
Removing easily, contoured technology can be different from the technology of interior entity shaping and material with material；
The outline of [i] operation molding, it is permissible that its meaning is before real three-dimensionally shaped thing molding to manufacture one around
The profile of the liquid metal trickling that constraint is melted, acting as of this profile:
1, the surface tension and the repulsion producing different materials that utilize metal liquid control the flowing of metal liquid in molten bath；
2, utilize entity vertical surface in outline cladding, three-dimensionally shaped thing is incubated so that it is each portion in forming process
The temperature divided does not has the biggest change；
3, utilize the vertical surface of the interior entity of outline cladding, reduce open surface or the area of exposure of interior entity, exist to reduce
In in manufacture process there is the probability of oxidation in solid object surface；
4, utilize the vertical surface of entity in outline cladding so that it is certain support can be obtained during fabrication so that its
The interior entity not havinging liquid during manufacture manufactures the uncontrolled flowing of material；
5, it is supported making it can molding smoothly for unsettled position.
3. one kind increases the molten bath control method that material manufactures, it is characterised in that: employ the control technology in a kind of molten bath, when melted
Vibrations are used to promote liquid metal permissible in the restriction range of profile when liquid metal is shaped in being filled in profile
Uniformly spread out.
The most according to claim 2, a kind of molten bath control method increasing material manufacture, it is characterised in that: due to the use of outline
The purposes of way and interior entity is different, so use different materials to manufacture molding mode and material manufacturing technology when molding.
The most according to claim 2, a kind of molten bath control method increasing material manufacture, it is characterised in that:
[i], when carrying out material and manufacturing, system first carries out the contoured of this slicing layer, specifically uses one can bear molding
Time the material that will not merge with interior solid material again of extreme environment carry out molding and the solidification of profile, profile include Internal periphery and
Outline；
[ii] carries out the material molding of entity in this layer, profit according to code after [i] operation completes in the range of profile crosses
Freely trickling by electric arc, laser, electron beam or other heater means molten metals is retrained, in carrying out with closed outline
The work of the electromagnetic shaker installed when entity manufactures makes the filling of molten metal evenly, as [ii] if needing when operation completes to continue
Molding carries out [i] operation the most again, if article shaped needs not continue to molding, carries out [iii] operation,
The material of [i] operation molding is removed by [iii] operation completely, obtains the three-dimensionally shaped thing of target.
The most according to claim 1, a kind of molten bath control method increasing material manufacture, it is characterised in that: adopt when being shaped
The molding of successional stage is carried out, until specifying molding with two or more forming method and different materials
The complete molding of thing.
The most according to claim 6, a kind of molten bath control method increasing material manufacture, it is characterised in that: use two or two
Above moulded head manufactures, moulded head can link can also alternating movement, complete one simultaneously or be respectively completed not
Same object.
The most according to claim 1, a kind of molten bath control method increasing material manufacture, it is characterised in that: the material used becomes
Shaped material be tinsel, metal dust can also be to be preheated molten metal liquid, metal ingredient can be that alloy also may be used
To be single metal.
The most according to claim 6, a kind of molten bath control method increasing material manufacture, it is characterised in that: metal forming thing manufactures
Time the thermal source that used can be single source can also be multistage heating various heating sources.
The most according to claim 2, a kind of molten bath control method increasing material manufacture, it is characterised in that: [i] operation molding
Outline, its role is to；
1, the surface tension and the repulsion producing different materials that utilize metal liquid control the flowing of metal liquid in molten bath；
2, utilize entity vertical surface in outline cladding, three-dimensionally shaped thing is incubated so that it is each portion in forming process
The temperature divided does not has the biggest change；
3, utilize the vertical surface of the interior entity of outline cladding, reduce open surface or the area of exposure of interior entity, exist to reduce
In in manufacture process there is the probability of oxidation in solid object surface；
4, utilize the vertical surface of entity in outline cladding so that it is certain support can be obtained during fabrication so that its
The interior entity not havinging liquid during manufacture manufactures material trickling under being facing perpendicularly to of interior entity；
5, it is supported making it can molding smoothly for unsettled position.
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| CN201611044945.9A CN106312069A (en) | 2016-11-22 | 2016-11-22 | Melt pool control method for additive manufacturing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099674A (en) * | 2017-05-15 | 2017-08-29 | 马鞍山尚元冶金科技有限公司 | A kind of application method of the increasing material manufacturing device based on electroslag remelting |
| CN107599379A (en) * | 2017-09-28 | 2018-01-19 | 湖南华曙高科技有限责任公司 | Three-dimensional body manufacture method and three-dimensional body manufacturing equipment |
| CN108929113A (en) * | 2017-05-24 | 2018-12-04 | 赵晴堂 | A kind of three-dimensional manufacturing method and forming method for increasing material moulding material |
| CN109536946A (en) * | 2018-12-03 | 2019-03-29 | 北京机科国创轻量化科学研究院有限公司 | A kind of more metal two-phase cofferdam type increasing material manufacturing methods of laser melting |
| CN113070472A (en) * | 2019-12-17 | 2021-07-06 | 赵晴堂 | Deposition and milling integrated double-station 3D printer |
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| CN107099674A (en) * | 2017-05-15 | 2017-08-29 | 马鞍山尚元冶金科技有限公司 | A kind of application method of the increasing material manufacturing device based on electroslag remelting |
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| CN107599379A (en) * | 2017-09-28 | 2018-01-19 | 湖南华曙高科技有限责任公司 | Three-dimensional body manufacture method and three-dimensional body manufacturing equipment |
| CN109536946A (en) * | 2018-12-03 | 2019-03-29 | 北京机科国创轻量化科学研究院有限公司 | A kind of more metal two-phase cofferdam type increasing material manufacturing methods of laser melting |
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