CN109049677A - A method of improving 3D printing intensity - Google Patents
A method of improving 3D printing intensity Download PDFInfo
- Publication number
- CN109049677A CN109049677A CN201810929795.2A CN201810929795A CN109049677A CN 109049677 A CN109049677 A CN 109049677A CN 201810929795 A CN201810929795 A CN 201810929795A CN 109049677 A CN109049677 A CN 109049677A
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- China
- Prior art keywords
- printing
- workpiece
- improving
- hollow structure
- constructed unit
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Classifications
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- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- 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
- B33Y80/00—Products made by additive manufacturing
Abstract
The invention discloses a kind of methods for improving 3D printing intensity, hollow structure is designed in 3D printing inside workpiece, and during 3D printing, it is put into the pre-constructed unit that at least one Conventional machining methods processes in the hollow structure, forms the composite structure 3D printing workpiece with inlay；The method of raising 3D printing intensity i.e. of the invention is mainly utilized in during 3D printing, it is packed into the high-intensitive pre-constructed unit of conventional method processing in due course, form the composite structure 3D printing workpiece with inlay, the 3D printing outer workpiece labyrinth is process by 3D printing, it is internally embedded the prefabricated sheet metal or bar of conventional method, so that workpiece strength significantly improves, solves the technical problem of 3D printing plastic product structural strength difference.
Description
Technical field
The present invention relates to 3D printing technique field, in particular to a kind of method for improving 3D printing intensity.
Background technique
In recent years, as 3D printing equipment, material, technique and application are fast-developing, using increasingly extensive, because of FDM (melting
Deposition modeling) 3D printing equipment, material and technique it is more mature, cost is relatively low, is easily worked shape or complicated part, special
Not Shi He rapid prototyping and small lot manufacture, FDM 3D printing have become people the most known to increases material manufacturing technology, commonly use
Raw material be ABS, PLA web-like silk material, the technical problems such as the generally existing product strength of 3D printing, insufficient rigidity.Therefore, it studies
A method of 3D printing intensity is improved, technical staff's important topic urgently to be resolved is become.
In the prior art, application No. is 201710773173.0, it is entitled that " a kind of raising 3D printing or electric arc increase material forming
A kind of technology for improving 3D printing intensity is disclosed in the patent application of the method for part strength ", mainly by ultrasonic vibration
The residual stress of 3D printing between layers is eliminated, is solved using in 3D printing product layer and caused by the accumulation of interlayer residual stress
Layer is interior, inter-layer bonding force is weak, the deformation of member, the problem of Cracking easily occurred.I.e. this method is remaining using 3D printing interlayer is eliminated
Stress to improve 3D printing intensity, but realizes that difficulty is big, and its intensity increase rate is small.
In addition, application No. is 201711266010.X, a kind of entitled " 3D printing molding for improving printout tenacity
A kind of raising 3D printing intensity, the method for toughness are also disclosed in the patent application of process and device ", are squeezed out in 3D printing
It is synchronous to carry out the movement of high speed contact pin during wire feed, so that printable layer and printing bottom is formed concavity by contact pin and press fourth of the twelve Earthly Branches structure, mentions
The intensity and toughness of high shaped component, bringing adverse consequences includes that thickness of workpiece is uneven, finish reduces and compactness is inconsistent
Deng.
For deficiency existing for the above method, the present invention discloses a kind of method for improving 3D printing intensity, controls rationally
On the basis of cost, 3D printing intensity can be significantly improved.
Summary of the invention
It is insufficient in above-mentioned background technique the purpose of the present invention is overcoming, a kind of method improving 3D printing intensity is provided, it is main
It solves the technical problem of 3D printing plastic product structural strength difference, modeling, steel integration 3D printing structure can be formed, i.e., outside it
Portion's Complex Different Shape structure is completed the process by fused deposition (FDM) 3D printing, and inside is sheet metal, bar etc. as skeleton, most
It is obviously improved product structure intensity.
In order to reach above-mentioned technical effect, the present invention takes following technical scheme:
A method of 3D printing intensity is improved, designs hollow structure in 3D printing inside workpiece, and in 3D printing process
In, it is put into the pre-constructed unit that at least one Conventional machining methods processes in the hollow structure, is formed with embedded
The composite structure 3D printing workpiece of object；The method of raising 3D printing intensity i.e. of the invention is mainly utilized in 3D printing process
In, it is packed into the high-intensitive pre-constructed unit of conventional method processing in due course, forms the composite structure 3D printing workpiece with inlay, it should
3D printing outer workpiece labyrinth is process by 3D printing, is internally embedded conventional method prefabricated sheet metal or stick
Material solves the technical problem of 3D printing plastic product structural strength difference so that workpiece strength significantly improves.
Further, the quantity of the hollow structure is one or more.
Further, the pre-constructed unit is made of metal material, and preferably uses metal alloy, as stainless steel, aluminium close
Gold, magnesium alloy, titanium alloy etc. can ensure the intensity of pre-constructed unit.
Further, the Conventional machining methods are Vehicle Processing, Milling Process, planing operation, grinding, CNC
One or more in processing.
Further, the face shaping of the pre-constructed unit is board-like, the rectangular or column structure with reinforcing rib, preferably
The shape coincideing with pre-constructed unit shape is used to design the hollow structure of 3D printing inside workpiece.
Further, the 3D printing workpiece uses FDM molding mode, and FDM form 3D printing is suitble to plastic part processing,
Technology maturation and user is more, has the advantages that cost is relatively low, easy to spread.
Further, support is not designed inside the hollow structure, in order to which pre-constructed unit is embedded in hollow structure.
Further, the lower ending opening size of the hollow structure is not more than upper end opening size, to be smoothly put into
Pre-constructed unit.
Further, it is described improve 3D printing intensity method comprising the following steps:
A. pre-constructed unit is processed using Conventional machining methods；
B. start 3D printing operation；
C. suspend 3D printing operation when the hollow structure of 3D printing workpiece is completed；
D. pre-constructed unit is put into corresponding hollow structure；
E. 3D printing operation is continued to complete；
F. the composite structure 3D printing workpiece with inlay is completed the process.
Further, it if the quantity for the pre-constructed unit that need to be put into is greater than 1, needs to repeat step C to step E,
Until all pre-constructed units are put into corresponding hollow structure.
Compared with prior art, the present invention have it is below the utility model has the advantages that
The method of raising 3D printing intensity of the invention is mainly utilized in during 3D printing, is packed into conventional method in due course
The high-intensitive pre-constructed unit of processing forms the composite structure 3D printing workpiece with inlay, and the 3D printing outer workpiece is complicated
Structure is process by 3D printing, conventional method prefabricated sheet metal or bar is internally embedded, so that workpiece strength is able to
It is substantially improved, solves the technical problem of 3D printing plastic product structural strength difference, and there is the 3D printing Workpiece structure produced
The advantages of novel, intensity is higher and low manufacture cost.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for the raising 3D printing intensity in one embodiment of the present of invention.
Fig. 2 is the end face signal of the 3D printing workpiece printed in one embodiment of the present of invention using method of the invention
Figure.
Fig. 3 is the schematic diagram of pre-constructed unit used in 3D printing workpiece in Fig. 2.
Fig. 4 is the schematic diagram of pre-constructed unit used in one embodiment of the present of invention.
Fig. 5 is the schematic diagram of pre-constructed unit used in one embodiment of the present of invention.
Fig. 6 is the schematic diagram of pre-constructed unit used in one embodiment of the present of invention.
Appended drawing reference: 1-3D prints workpiece body, the first lightening hole of 2-, the second lightening hole of 3- pre-constructed unit A, 4-, in 5-
Hollow structure, 6- pre-constructed unit B, 7- pre-constructed unit C, 8- pre-constructed unit D.
Specific embodiment
Below with reference to the embodiment of the present invention, the invention will be further elaborated.
Embodiment:
Embodiment one:
A method of improve 3D printing intensity, this method mainly by 3D printing inside workpiece design hollow structure,
And during 3D printing, the prefabricated portion that at least one Conventional machining methods processes is put into the hollow structure
Part forms the composite structure 3D printing workpiece with inlay.
As shown in Figure 1, the method for the raising 3D printing intensity comprising the following steps:
S1. pre-constructed unit is processed using Conventional machining methods；
S2. start FDM3D print job；
S3. suspend 3D printing operation when the hollow structure of 3D printing workpiece is completed；
S4. pre-constructed unit is put into corresponding hollow structure；
S5. 3D printing operation is continued to complete；
S6. the composite structure 3D printing workpiece with inlay is completed the process.
As shown in Fig. 2, being equipped with hollow structure for a kind of inside processed by the above method, and hollow structure is embedded with
The schematic diagram of the 3D printing workpiece of pre-constructed unit, specifically, the 3D printing workpiece includes 3D printing workpiece body, in 3D printing work
The middle part of part ontology is equipped with hollow structure, and multiple second lightening holes are offered above hollow structure, are opened below hollow structure
Equipped with multiple first lightening holes, and the pre-constructed unit A processed by Conventional machining methods is embedded in hollow structure,
The bottom pre-constructed unit A is equipped with two reinforcing ribs, specific as shown in Figure 3.
Specifically, a hollow structure is only equipped in the present embodiment in the 3D printing workpiece, and in the hollow structure
It is only embedded with a pre-constructed unit, corresponding number can be opened up in corresponding position according to the shape size of specific 3D printing workpiece in practice
And the hollow structure of shape, and it is embedded in the pre-constructed unit of corresponding number and shape in each hollow structure, to ensure that entire 3D is beaten
Print the integral strength of workpiece.
If be then equipped with multiple hollow structures and multiple pre-constructed units in 3D printing workpiece, above-mentioned raising 3D printing is strong
In the step process of the method for degree, step S3 to step S5 is then needed according to actually repeating, until all pre-constructed units are equal
It is put into corresponding hollow structure and enters back into step S6.
Preferably, the pre-constructed unit A in the present embodiment is made of stainless steel, can also be used in practice according to specific requirements
Other alloy materials, such as aluminium alloy, magnesium alloy, titanium alloy.
And in the present embodiment, the Vehicle Processing and grinding that pre-constructed unit A passes through in Conventional machining methods are formed, real
In border can according to the concrete shape of used pre-constructed unit using a kind in the traditional diamond-making techniques such as vehicle, milling, plane, mill, CNC or
Several processing for carrying out pre-constructed unit.
Specifically in the shape of the shape and hollow structure that design pre-constructed unit, it is generally preferable to adopt the shape of hollow structure
With with pre-constructed unit shape coincide design, and pre-constructed unit preferably using have reinforcing rib board-like, rectangular or column structure
Deng more regular shape, and its lower end size is generally no greater than upper end size, then the lower end of matched hollow structure
Opening size is also not more than upper end opening size, is more advantageous in hollow structure is smoothly put into pre-constructed unit in this way.Meanwhile
In order to guarantee conveniently to be put into pre-constructed unit, 3D printing workpiece need to be embedded in inside the hollow structure of pre-constructed unit without support.
3D printing workpiece uses FDM molding mode in the present embodiment, can also be by method application of the invention in practical application
In other 3D printing molding modes.
Embodiment two
A method of improve 3D printing intensity, this method mainly by 3D printing inside workpiece design hollow structure,
And during 3D printing, the pre-constructed unit B that a Conventional machining methods process, shape are put into the hollow structure
At the composite structure 3D printing workpiece with inlay.
Specifically, as shown in figure 4, pre-constructed unit B is made of aluminium alloy, and the shape of pre-constructed unit B is plate structure,
And a reinforcing rib is equipped in the lower surface of the pre-constructed unit B of the plate structure.
Embodiment three
A method of improve 3D printing intensity, this method mainly by 3D printing inside workpiece design hollow structure,
And during 3D printing, the pre-constructed unit C that a Conventional machining methods process, shape are put into the hollow structure
At the composite structure 3D printing workpiece with inlay.
Specifically, as shown in figure 5, pre-constructed unit C is made of magnesium alloy, and the shape of pre-constructed unit C is plate structure,
And two reinforcing ribs are equipped in the lower surface of the pre-constructed unit C of the plate structure.
Example IV
A method of improve 3D printing intensity, this method mainly by 3D printing inside workpiece design hollow structure,
And during 3D printing, the pre-constructed unit D that a Conventional machining methods process, shape are put into the hollow structure
At the composite structure 3D printing workpiece with inlay.
Specifically, as shown in fig. 6, pre-constructed unit D is made of magnesium alloy, and the shape of pre-constructed unit D is column structure,
And the pre-constructed unit D of the column structure by Conventional machining methods Milling Process and grinding form.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of method for improving 3D printing intensity, which is characterized in that design hollow structure in 3D printing inside workpiece, and in 3D
In print procedure, it is put into the pre-constructed unit that at least one Conventional machining methods processes in the hollow structure, is formed
Composite structure 3D printing workpiece with inlay.
2. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that the number of the hollow structure
Amount is one or more.
3. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that the pre-constructed unit is by gold
Belong to material to be made.
4. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that the tradition machinery processing
Method be Vehicle Processing, Milling Process, planing operation, grinding, CNC processing in one or more.
5. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that outside the pre-constructed unit
Sight shape is board-like, the rectangular or column structure with reinforcing rib.
6. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that the 3D printing workpiece is adopted
With FDM molding mode.
7. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that inside the hollow structure
It is not provided with the support construction with 3D printing workpiece one.
8. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that under the hollow structure
End opening size is not more than upper end opening size.
9. a kind of method for improving 3D printing intensity according to claim 1, which is characterized in that the raising 3D printing is strong
The method of degree comprising the following steps:
A. pre-constructed unit is processed using Conventional machining methods；
B. start 3D printing operation；
C. suspend 3D printing operation when the hollow structure of 3D printing workpiece is completed；
D. pre-constructed unit is put into corresponding hollow structure；
E. 3D printing operation is continued to complete；
F. the composite structure 3D printing workpiece with inlay is completed the process.
10. a kind of method for improving 3D printing intensity according to claim 9, which is characterized in that if what need to be put into is described
It when the quantity of pre-constructed unit is greater than 1, then needs to repeat step C to step E, until all pre-constructed units are put into corresponding hollow knot
In structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929795.2A CN109049677A (en) | 2018-08-15 | 2018-08-15 | A method of improving 3D printing intensity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929795.2A CN109049677A (en) | 2018-08-15 | 2018-08-15 | A method of improving 3D printing intensity |
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| CN109049677A true CN109049677A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810929795.2A Pending CN109049677A (en) | 2018-08-15 | 2018-08-15 | A method of improving 3D printing intensity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039784A (en) * | 2019-05-07 | 2019-07-23 | 张俊强 | A kind of 3D printing workpiece post-processing approach |
| CN111927910A (en) * | 2020-06-18 | 2020-11-13 | 北京遥感设备研究所 | Aluminum-magnesium alloy integrated multifunctional integrated structure |
| CN112454892A (en) * | 2020-11-11 | 2021-03-09 | 四川长虹电器股份有限公司 | Method and device for improving adhesion of 3D printing layer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856570A (en) * | 2016-05-10 | 2016-08-17 | 深圳市宏电技术股份有限公司 | 3D printing method |
| CN106956002A (en) * | 2017-04-19 | 2017-07-18 | 上海工程技术大学 | Bottom plate apparatus is combined in 3D printing |
-
2018
- 2018-08-15 CN CN201810929795.2A patent/CN109049677A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856570A (en) * | 2016-05-10 | 2016-08-17 | 深圳市宏电技术股份有限公司 | 3D printing method |
| CN106956002A (en) * | 2017-04-19 | 2017-07-18 | 上海工程技术大学 | Bottom plate apparatus is combined in 3D printing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039784A (en) * | 2019-05-07 | 2019-07-23 | 张俊强 | A kind of 3D printing workpiece post-processing approach |
| CN111927910A (en) * | 2020-06-18 | 2020-11-13 | 北京遥感设备研究所 | Aluminum-magnesium alloy integrated multifunctional integrated structure |
| CN112454892A (en) * | 2020-11-11 | 2021-03-09 | 四川长虹电器股份有限公司 | Method and device for improving adhesion of 3D printing layer |
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Application publication date: 20181221 |
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