CN108057892A - A kind of antenna minim channel cold plate metal 3D printing moulding process - Google Patents
A kind of antenna minim channel cold plate metal 3D printing moulding process Download PDFInfo
- Publication number
- CN108057892A CN108057892A CN201711351041.5A CN201711351041A CN108057892A CN 108057892 A CN108057892 A CN 108057892A CN 201711351041 A CN201711351041 A CN 201711351041A CN 108057892 A CN108057892 A CN 108057892A
- Authority
- CN
- China
- Prior art keywords
- cold plate
- printing
- antenna
- minim channel
- moulding process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- 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
- 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
Abstract
The present invention proposes a kind of antenna minim channel cold plate metal 3D printing moulding process, disclose a day 3D printing technique technological process for wire aluminium alloy minim channel cold plate, the minim channel cold plate of multiple small-size chips and large-size antennae front is machined, realizes the shaping of complex topology structure minim channel cold plate.
Description
Technical field
The present invention relates to 3D printing fields, particularly relate to a kind of antenna minim channel cold plate metal 3D printing moulding process.
Background technology
As electronic equipment integration degree is continuously improved, equipment volume increasingly reduces, and heat flow density sharply increases, and causes
Equipment is often in superheat state.Antenna array has very high heat flow density, and development is limited by current thermal control technology, because
The heat dissipation problem that this solves high heat flux density electronic equipment is very urgent.In all kinds of heat dissipation technologys, the cold skill of minim channel liquid
Art is shown one's talent due to its efficient heat-sinking capability in numerous heat dissipation technologys.The current research of this technology is mainly for passage
Influence of the factors such as hydraulic diameter, depth-width ratio, porosity to pressure drop and heat dissipation performance, it is remote to also demonstrate minim channel heat-sinking capability
Higher than regular channels.It is laid out on runner, it is proposed that the mentality of designing of S types runner and Z-type runner, it is proposed that rational flow point
Method of completing the square.Nevertheless, with a certain distance from still having from the real engineer application target for realizing that minim channel liquid is cold, main cause be with
Matched technology it is not perfect.
The content of the invention
The present invention proposes a kind of antenna minim channel cold plate metal 3D printing moulding process, in the prior art can not solve
Realize the printing of a variety of common materials, consistency nearly 100% after shaping.
The technical proposal of the invention is realized in this way：
1. three-dimension modeling
The three-dimensional CAD model of printing part is drawn by modeling softwares such as Pro/E, UG, it is special according to metal 3D printing technique
Point carries out it corresponding structural adjustment, is changed to by the rectangle of routine that top is domed, and one is easy for such as by channel cross-sectional shape
Channel forming is not broken, second is that raw material powder is facilitated to discharge.To prevent plate from occurring bending, deformation etc. in following process, also
Reinforcing rib structure need to be designed.
2. hierarchy slicing is handled
Designed threedimensional model is divided into multilayered structure by certain thickness, printing path is designed, by the file after section
.gcode forms are stored into, file is sent to by control software by 3D printer and control print parameters.
3. successively it is accumulated to crude green body shaping
Start 3D printer, be packed into printed material, debug print platform, set print parameters.After start-up operation, material warp
Layering printing is bonded, successively piled up layer by layer, until crude green body is molded.
4. strengthen heat treatment
All there are the problems such as consistency is high, local defect for the product of common metal 3D printing pre-profiling, it is therefore desirable to logical
Overheating Treatment strengthens mechanical performance, and common heat treatment mode is hot isostatic pressing.It can eliminate internal flaw, improve mechanical property
Can, toughness of material and fatigue crack extended capability can also be improved.However setting improper may also cause adverse consequences, such as table
Face forms pit or gross distortion, so having to consider to prevent deformation measure before hot isostatic pressing.
5. surface treatment
The product surface of common metal 3D printing can be relatively rough, it is necessary to be processed by shot blasting.Polishing method has physics throwing
Light and chemical polishing.For carrying the microchannel cold plate of internal cavity structure, then can be added by abrasive Flow or vibration finishing
Work improves the finish of product inner surface.
6. non-destructive testing
It needs to carry out non-destructive testing the indices such as planform, size, precision after formed product.
Preferably, the three-dimension modeling need to design reinforcing rib structure.
Preferably, the non-destructive testing is sense channel Forming Quality, also needs using industry CT detection defective locations and carries
Go out improving countermeasure.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is three-dimensional for a kind of antenna minim channel cold plate metal 3D printing moulding process chip minim channel cold plate of the present invention
Model；
Fig. 2 is a kind of antenna minim channel cold plate metal 3D printing moulding process chip minim channel cold plate pictorial diagrams of Fig. 1.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment belongs to the scope of protection of the invention.
1. three-dimension modeling
The three-dimensional CAD model of printing part is drawn by modeling softwares such as Pro/E, UG, it is special according to metal 3D printing technique
Point carries out it corresponding structural adjustment, is changed to by the rectangle of routine that top is domed, and one is easy for such as by channel cross-sectional shape
Channel forming is not broken, second is that raw material powder is facilitated to discharge.To prevent plate from occurring bending, deformation etc. in following process, also
Reinforcing rib structure need to be designed.Including three kinds of rectangle flat type, imitative venation and imitative spider net type runner topologys.It is respectively cold up and down
Plate liquid inlet and outlet.Cold plate size 26mm × 26mm × 3.2mm, topological runner area coverage 14mm × 14mm, minim channel section
Size 0.4mm × 1.2mm, the wide 0.4mm of fin.
2. hierarchy slicing is handled
Designed threedimensional model is divided into multilayered structure by certain thickness, printing path is designed, by the file after section
.gcode forms are stored into, file is sent to by control software by 3D printer and control print parameters.
3. successively it is accumulated to crude green body shaping
Start 3D printer, be packed into printed material, debug print platform, set print parameters.After start-up operation, material warp
Layering printing is bonded, successively piled up layer by layer, until crude green body is molded.
4. strengthen heat treatment
All there are the problems such as consistency is high, local defect for the product of common metal 3D printing pre-profiling, it is therefore desirable to logical
Overheating Treatment strengthens mechanical performance, and common heat treatment mode is hot isostatic pressing.It can eliminate internal flaw, improve mechanical property
Can, toughness of material and fatigue crack extended capability can also be improved.However setting improper may also cause adverse consequences, such as table
Face forms pit or gross distortion, so having to consider to prevent deformation measure before hot isostatic pressing.
5. surface treatment
The product surface of common metal 3D printing can be relatively rough, it is necessary to be processed by shot blasting.Polishing method has physics throwing
Light and chemical polishing.For carrying the microchannel cold plate of internal cavity structure, then can be added by abrasive Flow or vibration finishing
Work improves the finish of product inner surface.
6. non-destructive testing
It needs to carry out non-destructive testing the indices such as planform, size, precision after formed product.It is cold for chip
Plate, the minim channel of each cold plate have a degree of blocking, wherein the blocking most serious of imitative venation runner, rectangle is straight
Type runner and the inner surface quality of imitative spider net type runner are good.For antenna array cold plate, the sprue of straight topological structure
Surface quality is good, and minim channel clogging is also less；And the surface of the inside sprue of old concurrent topology structure cold plate
Quality is substantially not as good as the former, and there is also a degree of cloggings for minim channel；It does over again after reforming, new concurrent topology structure is cold
Plate compares its old exemplar inner flow passage surface quality and is significantly improved, visually in the case of its surface quality be slightly inferior to it is straight topology knot
Structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of antenna minim channel cold plate metal 3D printing moulding process, which is characterized in that including：Three-dimension modeling divides
Layer slicing treatment is successively accumulated to crude green body shaping, strengthens heat treatment, surface treatment and non-destructive testing.
2. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Three-dimension modeling by the modeling softwares such as Pro/E, UG draw printing part three-dimensional CAD model, according to metal 3D printing
Process characteristic carries out corresponding structural adjustment to it.
3. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Hierarchy slicing processing, designed threedimensional model is divided into multilayered structure by certain thickness, printing path is designed, after section
File storage into .gcode forms, file is sent to by control software by 3D printer and controls print parameters.
4. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Be successively accumulated to crude green body shaping, the layered printing of material, layer by layer bond, successively pile up, until crude green body be molded.
5. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Reinforcing heat treatment, heat treatment mode is hot isostatic pressing.
6. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Surface treatment, product surface needs be processed by shot blasting.
7. polishing treatment as claimed in claim 6, method has physics polishing and chemical polishing.
8. a kind of antenna minim channel cold plate metal 3D printing moulding process as described in claim 1, it is characterised in that：It is described
Non-destructive testing, defective locations are detected using industry CT and propose improving countermeasure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351041.5A CN108057892A (en) | 2017-12-15 | 2017-12-15 | A kind of antenna minim channel cold plate metal 3D printing moulding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351041.5A CN108057892A (en) | 2017-12-15 | 2017-12-15 | A kind of antenna minim channel cold plate metal 3D printing moulding process |
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| Publication Number | Publication Date |
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| CN108057892A true CN108057892A (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711351041.5A Withdrawn CN108057892A (en) | 2017-12-15 | 2017-12-15 | A kind of antenna minim channel cold plate metal 3D printing moulding process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351970A (en) * | 2018-11-16 | 2019-02-19 | 北京遥感设备研究所 | A kind of capillary structure 3D printing manufacturing method |
| CN109489467A (en) * | 2018-11-23 | 2019-03-19 | 西安航天发动机有限公司 | A kind of airspace engine heat exchange component and preparation method thereof |
| CN111564687A (en) * | 2020-03-30 | 2020-08-21 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Curved surface conformal antenna liquid cooling plate structure for 3D printing |
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| US20060171837A1 (en) * | 2003-12-03 | 2006-08-03 | Kennametal Inc. | Cemented carbide body containing zirconium and niobium and method of making the same |
| CN104377027A (en) * | 2014-11-27 | 2015-02-25 | 东北大学 | Method for preparing rare earth permanent magnet through laser additive fast forming and sintering in hot isostatic pressing mode |
| CN107020378A (en) * | 2017-03-29 | 2017-08-08 | 清华大学 | The preparation method of Terahertz corrugated horn |
| CN107081899A (en) * | 2017-05-10 | 2017-08-22 | 山东大学 | A kind of antenna production method based on 3D printing |
-
2017
- 2017-12-15 CN CN201711351041.5A patent/CN108057892A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060171837A1 (en) * | 2003-12-03 | 2006-08-03 | Kennametal Inc. | Cemented carbide body containing zirconium and niobium and method of making the same |
| CN104377027A (en) * | 2014-11-27 | 2015-02-25 | 东北大学 | Method for preparing rare earth permanent magnet through laser additive fast forming and sintering in hot isostatic pressing mode |
| CN107020378A (en) * | 2017-03-29 | 2017-08-08 | 清华大学 | The preparation method of Terahertz corrugated horn |
| CN107081899A (en) * | 2017-05-10 | 2017-08-22 | 山东大学 | A kind of antenna production method based on 3D printing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351970A (en) * | 2018-11-16 | 2019-02-19 | 北京遥感设备研究所 | A kind of capillary structure 3D printing manufacturing method |
| CN109489467A (en) * | 2018-11-23 | 2019-03-19 | 西安航天发动机有限公司 | A kind of airspace engine heat exchange component and preparation method thereof |
| CN111564687A (en) * | 2020-03-30 | 2020-08-21 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Curved surface conformal antenna liquid cooling plate structure for 3D printing |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180522 |
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| WW01 | Invention patent application withdrawn after publication |