CN106626164A - 3D printing conformal cooling die preform and method for eliminating residual powder in water channel thereof - Google Patents
3D printing conformal cooling die preform and method for eliminating residual powder in water channel thereof Download PDFInfo
- Publication number
- CN106626164A CN106626164A CN201611180389.8A CN201611180389A CN106626164A CN 106626164 A CN106626164 A CN 106626164A CN 201611180389 A CN201611180389 A CN 201611180389A CN 106626164 A CN106626164 A CN 106626164A
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- water channel
- mould
- preform
- support
- printing
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Classifications
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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
- B22F10/70—Recycling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/68—Cleaning or washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3835—Designing moulds, e.g. using CAD-CAM
-
- 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
- B33Y80/00—Products made by 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
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
Abstract
The invention provides a 3D printing conformal cooling die preform and a method for eliminating residual powder in the water channel thereof. The preform comprises a 3D printing conformal cooling die. A water channel is arranged in the die. The inlet and outlet of the water channel are both arranged in the bottom surface of the die. The preform also comprises a support, which is fixed on the bottom surface of the die. The surface area of the support can cover the bottom surface of the die and is capable of enclosing the inlet and outlet of the water channel in the bottom surface. The bottom surface of the support is provided with a recessed structure corresponding to the positions of the water inlet and outlet of the water channel. A loosen net like support is arranged in the recessed structure. When powder needs to be eliminated, cut preform is washed to remove oil, the net like support in the bottom surface of the preform is removed, then a through hole is drilled in the center of the recessed structure in the bottom surface of the preform; the preform is shaken to make powder fall from the through hole; and when powder is basically removed, compressed air is blown to the center of the through hole so as to blow out very little residual powder in the water channel.
Description
Technical field
The present invention relates to metal precinct laser fusion increases material manufacturing technology field, is specifically related to a kind of 3D printing cold with the shape
But the method for removing of injection mold water channel residual powder.
Background technology
Limited by conventional fabrication processes, injection mold cooling water channel is all straight line chiasma type, directly affects mould
Water route configures efficiency, causes moulding at short notice to reach uniform, effective cooling, so as to reduce injection production
Efficiency, compromises the quality and quality of moulding.Precinct laser fusion increases material manufacturing technology can break away from conventional method to mould
The many restrictions of water channel processing, overturn traditional design philosophy, construct the conformal cooling mould of cooling water channel with complex shape
Tool.Conformal cooling mode is that the shape of its cooling water channel is with the outer deformation of injection mold with the difference of traditional type of cooling
Change, be no longer linear, it is inconsistent with mold cavity surface distance that this water channel solves well traditional cooling water channel
Problem, can be such that moulding is uniformly cooled down, and cooling effectiveness is higher.
Because precinct laser fusion increases material manufacturing technology is that selectively to melt 30-60 using focal beam spot laser beam micro-
The metal dust in grain of rice footpath, then the function part with metallurgical binding feature is obtained by the form being layering, therefore, with the shape
In cooling every layer of laser melting process of mould, the cross section in water route is not Stimulated Light irradiation, because the design in water route is closed loop
, after the completion of resulting in mould 3D printing, residual powder is filled with water channel.
At present, the common practice for excluding residual powder is after cutting on line mold removal product, to be aligned with industrial dust collector
Mould water channel entrance is suctioned out or blows out powder with compressed air alignment mould water channel entrance, during for requiring strict, can
Residual powder is further removed using vibration of ultrasonic wave.
However, these methods are all it cannot be guaranteed that the residual powder in fully erased water channel, the cutting fluid of one side wire cutting
With the inwall that mould water channel can be sticky in after powder contact, powder is caused to be difficult to exclude, the compression of another aspect airflow is empty
The impact meeting compacted powder of gas, makes powder produce mechanical snap with mould water channel inwall.Once residual powder can not be complete
Exclude, very big impact can be caused in follow-up heat treatment and using middle, for example：The powder not excluded meeting and mould in heat treatment
Tool matrix is sintered together, and Partial Blocking water route causes cooling effect drastically to decline；Or the remaining powder being blended in cooling water
End can be flow at the sealing of injection machine valve, affect valve efficiency etc..
The content of the invention
Therefore, the present invention provides the exclusion side of a kind of 3D printing conformal cooling mould preform and its water channel residual powder
Method, to ensure to exclude the residual powder in water route completely before die ＆ mold treatment.
For achieving the above object, the technical solution used in the present invention is：
A kind of 3D printing conformal cooling mould preform, including 3D printing conformal cooling mould, mould inside is designed with water
Road, the water channel gateway of water channel is located on the bottom surface of the mould；
It is characterized in that：Also include support of the combination on the bottom surface of the mould, the surface area energy of the support
The bottom surface of the mould is enough covered, and the water channel gateway on the bottom surface can be closed；
The sunk structure that correspond to water outlet entrance is provided with the bottom surface for supporting, is provided with sunk structure loose
Mesh support.
Described 3D printing conformal cooling mould preform, wherein：The sunk structure is spherical depression.
The present invention also provides a kind of method for removing of 3D printing conformal cooling mould water channel residual powder, it is characterised in that
Comprise the steps：
First, a kind of 3D printing conformal cooling mould is designed, mould inside is designed with water channel, and the water channel gateway of water channel sets
Meter is on the bottom surface of the mould；
Then, according to the sized data of mould, a support is designed, the surface area of the support can cover the mould
Bottom surface, and the water channel gateway on the bottom surface can be closed；
Next, the center mark of water outlet entrance is correspond in the floor design for supporting, and with each
Center is labeled as one sunk structure of floor design of the center of circle in solid support of maximum open circle, and in sunk structure
It is designed with loose mesh support；
Next, implementing 3D printing manufacture；
Printing is finished, and takes out product, to support the position with sunk structure as incision site, will with wire cutting mode
Product is separated, and is obtained by mould and is supported the 3D printing conformal cooling mould preform for constituting；
Then, the preform for cutting down is cleaned into oil removing, removes the mesh support on preform bottom surface, then be directed at pre-
The center holes drilled through of the sunk structure of type body bottom surface；
Then, preform is upright, through hole down, rocks preform, powder is flowed out naturally from through hole；
After powder basic flow is net, with the center of compressed air aligned through holes by minimal amount of residual powder in water channel once
Property blowout.
Knowable to above-mentioned record, it is an advantage of the current invention that supporting by increasing, preform can be easy to clean oil removing, be kept away
The inwall of mould water channel is sticky in after without cutting liquid and powder contact, so as to easily by the residual powder in water channel it is fully erased under
Come.
Description of the drawings
What a kind of 3D printing conformal cooling mold data model and its solid type that Figure 1A, Figure 1B are provided for the present invention was supported
Front section view and upward view；
Fig. 2A, Fig. 2 B is schematic diagram and its partial enlarged drawing of the present invention in the spherical depression of mark of water channel outlet；
Fig. 3 A are the cutting schematic diagram that the present invention separates preform and substrate；
Fig. 3 B are the schematic bottom views of the preform after drilling.
Description of reference numerals：Water channel 1；Mould 2；Support 3；Water channel gateway 4；Sunk structure 5；Mesh support 6；Otch
Position 7；Preform 8；Substrate 9；Through hole 10.
Specific embodiment
The present invention provides a kind of method for removing of 3D printing conformal cooling mould water channel residual powder, comprises the steps：
First, as shown in Figure 1A, Figure 1B, a kind of 3D printing conformal cooling mould (data model) is designed, is set inside mould 2
In respect of the water channel 1 of diameter 6mm, the water channel gateway 4 of water channel 1 is designed on the bottom surface of the mould 2；
Then, as shown in Figure 1A, Figure 1B, according to the sized data of mould 2, (the data of support 3 of a thickness 3mm are designed
Model), the surface area of the support 3 can cover the bottom surface of the mould 2, and the water channel that can be closed on the bottom surface goes out
Entrance 4；
Next, as shown in Fig. 2A, Fig. 2 B, in the floor design for supporting 3 center of the position of water outlet gateway 4 is correspond to
Position mark, and one spherical crown of floor design of the center of circle in solid support 3 that maximum open circle is labeled as with each center
Shape sunk structure 5 (data model), the preferred 5mm of maximum open circular diameter of sunk structure 5, sunk structure 5 it is highly preferred
2mm, and loose mesh support 6 (data model) is designed with sunk structure 5；
Next, implementing 3D printing manufacture on EOSM290 precinct laser fusion equipment with the parameter of 50 μm of thickness；
Printing is finished, and takes out product, clears up appearance, then as shown in figure 3, is with the position in support 3 with sunk structure 5
Incision site 7, with wire cutting mode by the preform 8 of 3D printing conformal cooling mould (by mould 2 and support 3 to constitute) and substrate
9 separate；
Then, the preform 8 for cutting down is cleaned into oil removing, with pliers mesh support 6 is removed, then it is pre- with drill bit alignment
The center holes drilled through 10 of the sunk structure 5 of the bottom surface of type body 8, drills through support 3, and bore diameter 5mm can not make in drilling machine process
Use coolant；
Then, preform 8 is upright, through hole 10 rocks down, firmly preform 8, powder is flowed naturally from through hole 10
Go out；
After powder basic flow is net, with the center of compressed air aligned through holes 10 by minimal amount of residual powder in water channel 1
Disposable blowout, notes now needing holding water channel 1 other outlet openings not to be blocked；
Finally, preform 8 can be placed in vacuum drying oven and is heat-treated, and carry out at whole dimensioned and polishing after heat treatment
Reason.
From said method, the 3D printing conformal cooling mould preform referred in the present invention, including 3D printing are profile-followed
Cooling mould, the water channel gateway 4 that the indoor design of mould 2 has water channel 1, water channel 1 is located on the bottom surface of the mould 2；
Also include support 3 of the combination on the bottom surface of the mould 2, it is described to support 3 surface area to cover institute
The bottom surface of mould 2 is stated, and the water channel gateway 4 on the bottom surface can be closed；
3 bottom surface is being supported to be provided with the spherical sunk structure 5 that correspond to the position of water outlet gateway 4, in sunk structure 5
It is provided with loose mesh support 6.
It is described above to be merely exemplary for the purpose of the present invention, and it is nonrestrictive, and those of ordinary skill in the art understand,
In the case of without departing from spirit and scope defined herein, can many modifications may be made, change or equivalent, but fall within
Within protection scope of the present invention.
Claims (4)
1. a kind of 3D printing conformal cooling mould preform, including 3D printing conformal cooling mould, mould (2) indoor design has water
Road (1), the water channel gateway (4) of water channel (1) is on the bottom surface of the mould (2)；
It is characterized in that：Also include support (3) of the combination on the bottom surface of the mould (2), the surface of the support (3)
Product can cover the bottom surface of the mould (2), and can close the water channel gateway (4) on the bottom surface；
The bottom surface of (3) is being supported to be provided with the sunk structure (5) that correspond to water outlet gateway (4) position, sunk structure sets in (5)
There is loose mesh support (6).
2. 3D printing conformal cooling mould preform according to claim 1, it is characterised in that：The sunk structure (5)
It is spherical depression.
3. a kind of method for removing of 3D printing conformal cooling mould water channel residual powder, it is characterised in that comprise the steps：
First, a kind of 3D printing conformal cooling mould is designed, the water channel that mould (2) indoor design has water channel (1), water channel (1) goes out
Entrance (4) is designed on the bottom surface of the mould (2)；
Then, according to the sized data of mould (2), design one and support (3), the surface area of the support (3) can cover institute
The bottom surface of mould (2) is stated, and the water channel gateway (4) on the bottom surface can be closed；
Next, the center mark of water outlet gateway (4) position is correspond in the floor design for supporting (3), and with every
Individual center is labeled as one sunk structure (5) of floor design of the center of circle in solid support (3) of maximum open circle, and recessed
Loose mesh support (6) is designed with sunken structure (5)；
Next, implementing 3D printing manufacture；
Printing is finished, and takes out product, have on (3) position of sunk structure (5) as incision site (7) to support, and uses wire cutting
Mode separates product, obtains 3D printing conformal cooling mould preform (8) being made up of mould (2) and support (3)；
Then, the preform for cutting down (8) is cleaned into oil removing, removes the mesh support (6) on preform (8) bottom surface, then
The center holes drilled through (10) of the sunk structure (5) of alignment preform (8) bottom surface；
Then, preform (8) is upright, through hole (10) down, rocks preform (8), powder is flowed naturally from through hole (10)
Go out；
After powder basic flow is net, with the center of compressed air aligned through holes (10) by minimal amount of residual powder in water channel (1)
Disposable blowout.
4. the method for removing of 3D printing conformal cooling mould water channel residual powder according to claim 3, it is characterised in that：
The sunk structure (5) is spherical depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180389.8A CN106626164B (en) | 2016-12-19 | 2016-12-19 | The method for removing of 3D printing conformal cooling mold preform and its water channel residual powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180389.8A CN106626164B (en) | 2016-12-19 | 2016-12-19 | The method for removing of 3D printing conformal cooling mold preform and its water channel residual powder |
Publications (2)
| Publication Number | Publication Date |
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| CN106626164A true CN106626164A (en) | 2017-05-10 |
| CN106626164B CN106626164B (en) | 2018-12-28 |
Family
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| CN201611180389.8A Active CN106626164B (en) | 2016-12-19 | 2016-12-19 | The method for removing of 3D printing conformal cooling mold preform and its water channel residual powder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225374A (en) * | 2017-07-04 | 2017-10-03 | 东莞光韵达光电科技有限公司 | A kind of manufacture method of thin-walled injection moulding core rod |
| CN107552786A (en) * | 2017-08-30 | 2018-01-09 | 长沙远达华信息科技有限公司 | 3D printing conformal cooling mould preform |
| CN108127116A (en) * | 2017-11-24 | 2018-06-08 | 北京遥感设备研究所 | A kind of 3D printing cold plate inner flow passage cleaning method |
| CN109175368A (en) * | 2018-10-29 | 2019-01-11 | 首都航天机械有限公司 | A kind of cleaning method of selective laser fusing forming alloy complex inner cavity |
| CN109434105A (en) * | 2018-12-03 | 2019-03-08 | 北京星驰恒动科技发展有限公司 | Remaining powder cleaning technology and metal 3D printing method in metal 3D printing |
| CN109604593A (en) * | 2018-11-22 | 2019-04-12 | 中国科学院金属研究所 | A kind of selective laser is fused into the method for cleaning of airfoil surface and internal residual powder |
| CN110744751A (en) * | 2019-11-21 | 2020-02-04 | 集美大学 | 3D printing anti-grafting forming manufacturing method of injection mold |
| CN111408717A (en) * | 2020-01-18 | 2020-07-14 | 西安嘉业航空科技有限公司 | 3D printing processing method of blind hole cavity structure part convenient for powder cleaning treatment |
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| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN104493163A (en) * | 2014-12-30 | 2015-04-08 | 无锡银邦精密制造科技有限公司 | 3D (Three-Dimensional) printing processing method capable of facilitating power clearing treatment for injection mold overall mold core |
| CN206351514U (en) * | 2016-12-19 | 2017-07-25 | 曼乔（北京）科技有限公司 | 3D printing conformal cooling mould preform |
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| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN104493163A (en) * | 2014-12-30 | 2015-04-08 | 无锡银邦精密制造科技有限公司 | 3D (Three-Dimensional) printing processing method capable of facilitating power clearing treatment for injection mold overall mold core |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225374A (en) * | 2017-07-04 | 2017-10-03 | 东莞光韵达光电科技有限公司 | A kind of manufacture method of thin-walled injection moulding core rod |
| CN107225374B (en) * | 2017-07-04 | 2019-06-04 | 东莞光韵达光电科技有限公司 | A kind of manufacturing method of thin-walled injection moulding mold core |
| CN107552786A (en) * | 2017-08-30 | 2018-01-09 | 长沙远达华信息科技有限公司 | 3D printing conformal cooling mould preform |
| CN108127116A (en) * | 2017-11-24 | 2018-06-08 | 北京遥感设备研究所 | A kind of 3D printing cold plate inner flow passage cleaning method |
| CN108127116B (en) * | 2017-11-24 | 2019-07-30 | 北京遥感设备研究所 | A kind of 3D printing cold plate inner flow passage cleaning method |
| CN109175368A (en) * | 2018-10-29 | 2019-01-11 | 首都航天机械有限公司 | A kind of cleaning method of selective laser fusing forming alloy complex inner cavity |
| CN109604593A (en) * | 2018-11-22 | 2019-04-12 | 中国科学院金属研究所 | A kind of selective laser is fused into the method for cleaning of airfoil surface and internal residual powder |
| CN109434105A (en) * | 2018-12-03 | 2019-03-08 | 北京星驰恒动科技发展有限公司 | Remaining powder cleaning technology and metal 3D printing method in metal 3D printing |
| CN110744751A (en) * | 2019-11-21 | 2020-02-04 | 集美大学 | 3D printing anti-grafting forming manufacturing method of injection mold |
| CN110744751B (en) * | 2019-11-21 | 2021-11-26 | 集美大学 | 3D printing anti-grafting forming manufacturing method of injection mold |
| CN111408717A (en) * | 2020-01-18 | 2020-07-14 | 西安嘉业航空科技有限公司 | 3D printing processing method of blind hole cavity structure part convenient for powder cleaning treatment |
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| Publication number | Publication date |
|---|---|
| CN106626164B (en) | 2018-12-28 |
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