CN109622972A - Complicated inner flow passage increases and decreases material mixed production method - Google Patents

Complicated inner flow passage increases and decreases material mixed production method Download PDF

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Publication number
CN109622972A
CN109622972A CN201910057024.3A CN201910057024A CN109622972A CN 109622972 A CN109622972 A CN 109622972A CN 201910057024 A CN201910057024 A CN 201910057024A CN 109622972 A CN109622972 A CN 109622972A
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Prior art keywords
flow passage
inner flow
layer
filler
layer deposition
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CN201910057024.3A
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Chinese (zh)
Inventor
吕建忠
刘志乙
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Dalian Hay Bodry Faith Science And Technology Co Ltd
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Dalian Hay Bodry Faith Science And Technology Co Ltd
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Priority to CN201910057024.3A priority Critical patent/CN109622972A/en
Publication of CN109622972A publication Critical patent/CN109622972A/en
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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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • 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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • 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
    • 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
    • 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
    • B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
    • 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
    • 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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/62—Treatment of workpieces or articles after build-up by chemical means
    • 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
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B22F2005/103—Cavity made by removal of insert
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of complicated inner flow passages to increase and decrease material mixed production method, and steps are as follows: 1. preparing filler identical with part inner flow passage shape；2. preparing matrix using layer by layer deposition method；3. filler is placed on matrix；4. using layer by layer deposition method, continue layer by layer deposition until cladding filler, forms part；5. removing filler；6. hidden lino removal.The present invention has the advantages that technical solution of the present invention is not necessarily to mold, it being capable of rapid shaping.Working process is passed through on the inner flow passage surface of labyrinth, so dimensional accuracy and surface quality are all very high.Part suitable for the demanding complicated inner flow passage structure of single and mini-batch production or precision quality directly manufactures.

Description

Complicated inner flow passage increases and decreases material mixed production method
Technical field
The present invention relates to a kind of inner flow passage manufacturing method of complexity more particularly to a kind of complicated inner flow passage increase and decrease material mixing systems Make method.
Background technique
Complicated inner flow passage refers to that closed entity inside is existing and coats the fluid passage formed by single or multiple curved surfaces. Usual inner flow passage needs higher surface smoothness, convenient for fluid quickly through.Inner flow passage structure is using more, including enclosed leaf Wheel, cooling water channel and hollow blade etc..
Such as double shrouded wheel, inner flow passage is by two blades, wheel hub surface and shrouding disc face composition.When leaf curling is larger, between blade Runner it is longer when, using material remove processing method be difficult to realize, so generally use casting technique manufacture.
For example the conformal cooling water route of injection mold can be closed due to the complexity of die surface below die surface The design pipeline of reason, can uniformly take away heat, and shaping efficiency can be improved and improve quality of item.
Such as many places bending or even the pipeline of variable cross-section area etc..
For complicated inner flow passage structure, casting is mostly used to produce when part strength is of less demanding, since such part is multiple Miscellaneous structure is easy to cause cast sturcture loose, the casting flaws such as shrinkage cavity；Cost is relatively low for part volume for casting, but needs Mold is made, is not the method for rapid shaping；So product qualification rate is low to sum up production efficiency is low, complex parts Production cycle is longer, and manufacturing cost is higher.
Xi'an Bo Lite laser forming Technology Co., Ltd. discloses a kind of laser essence of complicated inner flow passage aluminum alloy part Close manufacturing process, application number: 201510711413.5, a kind of laser essence of complicated inner flow passage aluminum alloy part of the disclosure of the invention Close manufacturing process, comprising the following steps: establish threedimensional model, hierarchy slicing obtains laser beam scan path；Substrate is fixed, and aluminium closes Bronze end is put into powder cylinder；Working chamber is filled with argon gas, is laid with Al alloy powder on substrate；Start laser forming equipment, scanning adds Work；Formation cylinder declines the distance of a thickness, and powder cylinder rises with it the distance of a thickness, and power spreading device is manufactured One layer of Al alloy powder is laid on current layer, until part completion of processing；Part is made annealing treatment, is made.
According to the statement it is found that the invention uses selective laser melting process, which can be realized complicated inner flow passage zero The accurate rapid shaping of part.But the technical equipment realizes that the cost of more large-scale part is higher, manufacturing process technology difficulty is got over Greatly.Meanwhile the technology needs to design and manufacture support, finally to guarantee water passage surface quality to some complicated inner flow passage structures It removes and supports in part completion of processing, the inner flow passage support that may cause certain enclosed constructions in this way not can be removed, or removal It is unclean.The invention is only for aluminum alloy materials, smaller scope of application.The technology not can solve what the application needed to solve Technical problem.
Summary of the invention
In view of the deficiencies of the prior art, increase MATERIALS METHODS and machining of the present invention using laser DIRECT ENERGY deposition Part of the mode direct generative mode manufacture with complicated inner flow passage structure that combines of material removal method, can be with rapid shaping band There is the part of complicated inner flow passage structure, zero suitable for the demanding complicated inner flow passage structure of single and mini-batch production or precision quality The direct manufacture of part.
This complexity inner flow passage increases and decreases material mixed production method, and steps are as follows:
1. preparing filler identical with part inner flow passage shape；
2. preparing matrix using layer by layer deposition method；
3. filler is placed on matrix；
4. using layer by layer deposition method, continue layer by layer deposition until cladding filler, forms part；
5. removing filler；
6. hidden lino removal.
The filler is the mixture for casting fine sand and sand mold binder, or is single substance, such as ceramics.
The step 4. in layer by layer deposition direction be along part inner flow passage center grain direction layer by layer deposition Or the center grain direction layer by layer deposition of the inner flow passage of vertical part.
The method of the removal filler is heating and melting or external force impact or mechanical oscillation or chemical attack.
It is described along the inner flow passage center grain direction layer by layer deposition of part when, filler can be with integral built-in or along deposition Direction segmentation is pre-buried.
When the inner flow passage center grain direction layer by layer deposition of the vertical part, in the position of parallel inner flow passage center streamline Stopping is set, then with the method precision processing body upper surface and inner flow passage curved surface for subtracting material.
The method for subtracting material is the method that milling, grinding, rolling and laser-ultrasound remove material.
The present invention has the advantages that technical solution of the present invention is not necessarily to mold, it being capable of rapid shaping.The inner flow passage of labyrinth Working process is passed through on surface, so dimensional accuracy and surface quality are all very high.Suitable for single and mini-batch production or precision quality The part of demanding complexity inner flow passage structure directly manufactures.
Detailed description of the invention
Fig. 1 is the schematic cross-section splitted with inner flow passage part.
Fig. 2 is the structural schematic diagram deposited along inner flow passage center grain direction.
Fig. 3 is the structural schematic diagram of vertical inner flow passage center grain direction deposition.
Marked in the figure: 1- matrix, 2- filler, 3- sedimentary, 4- part, 5- inner flow passage curved surface, 6- inner flow passage center stream Line, F- deposition direction.
Specific embodiment
Complicated inner flow passage increase and decrease material mixed production method is further described with reference to the accompanying drawing.
This complexity inner flow passage increases and decreases material mixed production method, and steps are as follows:
1. preparing filler 2 identical with part inner flow passage shape；
2. preparing matrix 1 using layer by layer deposition method；
3. filler 2 is placed on matrix 1；
4. using layer by layer deposition method, continue layer by layer deposition until cladding filler 2, forms part 4；
5. removing filler 2；
6. hidden lino removal.
Filler 2 is the mixture for casting fine sand and sand mold binder, or is single substance, such as ceramics.
Layer by layer deposition direction be along part 4 inner flow passage center grain direction layer by layer deposition, as shown in Fig. 2, The center grain direction layer by layer deposition of the inner flow passage of vertical part, as shown in Figure 3.
The method of removal filler 2 is heating and melting or external force impact or mechanical oscillation or chemical attack.
When along the inner flow passage center grain direction layer by layer deposition of part 4, filler 2 can be with integral built-in or along deposition direction It is segmented pre-buried.
When the inner flow passage center grain direction layer by layer deposition of vertical part 4, the suitable position of streamline at parallel fluid channels center Stopping is set, then with the method precision processing body upper surface and inner flow passage curved surface 5 for subtracting material.
The method for subtracting material is the method that milling, grinding, rolling and laser-ultrasound remove material.
Embodiment one:
This complexity inner flow passage increases and decreases material mixed production method, and steps are as follows: Step 1: by previously prepared inner flow passage shape The filler 2 of shape, is arranged on the matrix 1 of inner flow passage corresponding position；Inner flow passage curved surface 5 and center streamline 6 are as shown in Figure 1.It fills out Pre-buried, i.e., as shown in Figure 2 deposition direction F can also can be segmented with integral built-in in the direction of growth by filling object 2；
Step 2: melting metal powder using laser energy, according to 4 section shape of part, deposition forms first layer；
Step 3: continuing to use laser energy Direct precipitation method, according to 4 shape of part, deposited shown in Fig. 2 arrow Successively increase material on the F of direction.State when inner flow passage half left-right position is deposited to shown in Fig. 2.
Step 4: increasing material using laser energy Direct precipitation, until material is coated completely with inner flow passage structure Part 4, part 4 form completely；
Step 5: the macromolecule fusing point temperatures above into filler 5 of heated components 4, removes filler 2, at this time filler 2 For casting fine sand and high molecular mixture；
Step 6: hidden lino removal.
Embodiment two:
This complexity inner flow passage increases and decreases material mixed production method, and steps are as follows: Step 1: melting metal using laser energy Powder, be layering material, obtains such as 1 part blank shape of matrix in Fig. 3, the position for increasing material stopping is flowed at runner center On line 6；
Step 2: precision handles body upper surface and inner flow passage curved surface 5 in such a way that material removes；
Step 3: the filler 2 identical with the inner flow passage shape of part of preparation, as shown in figure 3, filler 2 is arranged Inside on sprue curved 5；
Step 4:, according to 4 shape of part, showing deposition side shown in arrow in Fig. 3 using laser energy Direct precipitation method Successively increase material on F；
Step 5: increasing material using laser energy Direct precipitation, until material coats filler 2 completely, interior stream is had The part of road structure forms completely；
Step 6: heated components macromolecule fusing point temperatures above into filler, removes filler, at this point, filler 2 is Casting model powder and high molecular mixture；
Step 7: hidden lino removal.
Basic principle of the invention, primary structure and advantage has been shown and described above.The technical staff of the industry should Understand, without departing from the spirit and scope of the present invention, the present invention can also have the changes and improvements in size and direction etc., These changes and improvements are both fallen in claimed the scope of the present invention.

Claims (7)

1. a kind of complexity inner flow passage increases and decreases material mixed production method, steps are as follows:
1. preparing filler identical with part inner flow passage shape；
2. preparing matrix using layer by layer deposition method；
3. filler is placed on matrix；
4. using layer by layer deposition method, continue layer by layer deposition until cladding filler, forms part；
5. removing filler；
6. hidden lino removal.
2. complexity inner flow passage according to claim 1 increases and decreases material mixed production method, it is characterised in that: the filler It for the mixture of casting model powder and moulding sand binder, or is single substance.
3. complexity inner flow passage according to claim 1 increases and decreases material mixed production method, it is characterised in that: the step is 4. In layer by layer deposition direction be along part inner flow passage center grain direction layer by layer deposition or vertical part inner flow passage Center grain direction layer by layer deposition.
4. complexity inner flow passage according to claim 1 increases and decreases material mixed production method, it is characterised in that: the removal is filled out The method for filling object is heating and melting or external force impact or mechanical oscillation or chemical attack.
5. complexity inner flow passage according to claim 3 increases and decreases material mixed production method, it is characterised in that: it is described along part Inner flow passage center grain direction layer by layer deposition when, filler can with integral built-in or along deposition direction be segmented it is pre-buried.
6. complexity inner flow passage according to claim 3 increases and decreases material mixed production method, it is characterised in that: described vertical zero When the inner flow passage center grain direction layer by layer deposition of part, at parallel inner flow passage center, the position of streamline stops, and then uses and subtracts material Method precision processing body upper surface and inner flow passage curved surface.
7. complexity inner flow passage according to claim 3 increases and decreases material mixed production method, it is characterised in that: the described material that subtracts Method is the method that milling, grinding, rolling and laser-ultrasound remove material.
CN201910057024.3A 2019-01-22 2019-01-22 Complicated inner flow passage increases and decreases material mixed production method Pending CN109622972A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111168002A (en) * 2019-12-31 2020-05-19 北京机科国创轻量化科学研究院有限公司 Printing and cutting integrated forming method for large sand mold
CN112317762A (en) * 2020-12-31 2021-02-05 西安赛隆金属材料有限责任公司 Manufacturing method of inner runner part
CN112643046A (en) * 2020-11-26 2021-04-13 西安交通大学 Internal flow channel unsupported forming method based on metal fuse wire material increase and decrease
CN112895057A (en) * 2021-01-15 2021-06-04 北京工业大学 Embedding method of fiber grating sensor based on 3D printing technology
CN114632950A (en) * 2022-03-17 2022-06-17 潍柴动力股份有限公司 Material-increasing and material-decreasing composite manufacturing method for engine cylinder block

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980380A1 (en) * 2007-04-13 2008-10-15 LBC Laser Bearbeitungs Center GmbH Device for warming or cooling, in particular as part of a mould for processing plastic masses, such as injection mould for plastic
CN104001914A (en) * 2014-05-16 2014-08-27 华南理工大学 Manufacturing device and method for injection mold with conformal cooling pipeline
CN105817625A (en) * 2016-05-19 2016-08-03 西安交通大学 Composite forming device of molten coating added and decreased materials
CN107283859A (en) * 2017-06-14 2017-10-24 上海大学 A kind of method that fractal structure microchannel is prepared by 3D printing
CN108480821A (en) * 2018-03-27 2018-09-04 福州大学 A kind of electric arc increasing material manufacturing method of circular cross-section follow-cooling passageway

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980380A1 (en) * 2007-04-13 2008-10-15 LBC Laser Bearbeitungs Center GmbH Device for warming or cooling, in particular as part of a mould for processing plastic masses, such as injection mould for plastic
CN104001914A (en) * 2014-05-16 2014-08-27 华南理工大学 Manufacturing device and method for injection mold with conformal cooling pipeline
CN105817625A (en) * 2016-05-19 2016-08-03 西安交通大学 Composite forming device of molten coating added and decreased materials
CN107283859A (en) * 2017-06-14 2017-10-24 上海大学 A kind of method that fractal structure microchannel is prepared by 3D printing
CN108480821A (en) * 2018-03-27 2018-09-04 福州大学 A kind of electric arc increasing material manufacturing method of circular cross-section follow-cooling passageway

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111168002A (en) * 2019-12-31 2020-05-19 北京机科国创轻量化科学研究院有限公司 Printing and cutting integrated forming method for large sand mold
CN112643046A (en) * 2020-11-26 2021-04-13 西安交通大学 Internal flow channel unsupported forming method based on metal fuse wire material increase and decrease
CN112643046B (en) * 2020-11-26 2022-03-08 西安交通大学 Internal flow channel unsupported forming method based on metal fuse wire material increase and decrease
CN112317762A (en) * 2020-12-31 2021-02-05 西安赛隆金属材料有限责任公司 Manufacturing method of inner runner part
CN112895057A (en) * 2021-01-15 2021-06-04 北京工业大学 Embedding method of fiber grating sensor based on 3D printing technology
CN114632950A (en) * 2022-03-17 2022-06-17 潍柴动力股份有限公司 Material-increasing and material-decreasing composite manufacturing method for engine cylinder block

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