CN114701166A - Control method for deformation of large-size high polymer material 3D printing material - Google Patents
Control method for deformation of large-size high polymer material 3D printing material Download PDFInfo
- Publication number
- CN114701166A CN114701166A CN202210330610.2A CN202210330610A CN114701166A CN 114701166 A CN114701166 A CN 114701166A CN 202210330610 A CN202210330610 A CN 202210330610A CN 114701166 A CN114701166 A CN 114701166A
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- CN
- China
- Prior art keywords
- layer
- printing
- compensation
- nozzle
- deformation
- Prior art date
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 28
- 239000002861 polymer material Substances 0.000 title claims abstract description 26
- 238000010146 3D printing Methods 0.000 title claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 90
- 238000007639 printing Methods 0.000 claims abstract description 43
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 239000011229 interlayer Substances 0.000 claims abstract description 4
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention discloses a method for controlling deformation of a large-size high polymer material 3D printing material, which comprises the following steps of redesigning a printing path: moving a printer nozzle on a print path of the first layer, the nozzle being displaced prior to a change in print path direction to form an extrusion compensation to compensate for the change in print path direction; adding an additionally generated compensation portion on an existing printing path, wherein the printing path comprises the compensation portion relative to the first layer; moving the nozzle and the roller according to a first layer of the printing path while printing with the nozzle; moving the nozzle and the roller according to the compensation while printing on a second layer of the print path; and the nozzle and the roller are matched to move towards the second layer along the compensation part of the first layer, so that the interlayer printing and combination of the first layer and the second layer are completed. According to the invention, the printing path is redesigned and the material deformation of the high polymer material in the temperature change is compensated, so that the accurate 3D printing of the large-size high polymer material is realized.
Description
Technical Field
The invention relates to the field of 3D printing, in particular to a method for controlling deformation of a 3D printing material of a large-size high polymer material.
Background
3D prints nearly 40 years ago, uses more and more extensively, enters into the application field of rapid prototyping, frock clamp tool and final product, and the nonmetal printing development of reality is rapid, especially uses macromolecular material 3D to print as main development direction.
However, many products, including automobile parts, aviation molds, furniture and building products, are mostly large in size (more than 500 mm), and deformation is caused by temperature change during printing, specifically, volume change of a high polymer material at room temperature and a melting temperature, and shrinkage force caused by temperature difference between printed layers. Greatly hindering the development of applications.
Disclosure of Invention
The invention aims to provide a control method for deformation of a large-size high polymer material 3D printing material, which redesigns a printing path and compensates material deformation in the 3D printing process of the high polymer material, and compensates the deformation instead of preventing and eliminating the deformation so as to realize accurate 3D printing of the large-size high polymer material.
The invention realizes the purpose through the following technical scheme: a control method for deformation of a large-size high polymer material 3D printing material comprises the following steps of redesigning a printing path: moving a printer nozzle on a print path of the first layer, the nozzle being displaced prior to a change in print path direction to form an extrusion compensation to compensate for the change in print path direction; adding an additionally generated compensation portion on an existing printing path, wherein the printing path comprises the compensation portion relative to the first layer; moving the nozzle and the roller according to a first layer of the printing path while printing with the nozzle; moving the nozzle and the roller according to the compensation while printing on a second layer of the print path; and the nozzle and the roller are matched to move towards the second layer along the compensation part of the first layer, so that the interlayer printing and combination of the first layer and the second layer are completed.
Further, after the print paths of the first layer and the second layer are generated, the respective compensation portions are added to the entire print paths.
Further, the compensation portion is based on the shape of the outward protrusion of the first layer, i.e. the outward compensation, the outward protrusion of the compensation portion being located between the first layer and the second layer.
Further, the method may include positioning the roller in alignment with the compensation portion of the first layer, but not in alignment with the first layer, prior to printing the second layer moving the roller.
Further, the method includes positioning the roller in alignment with the compensating portion such that a center of the roller overlaps a portion of the compensating portion with a substantial deviation from the first layer.
Further, the position of the compensation portion is based on the relative position and relative angle of the first layer and the second layer.
Further, the shape of the compensation portion determines the angle of change based on the relative position and orientation of the first layer and the second layer.
Further, the compensation portion connects a first layer and a second layer of the printing path, wherein the compensation portion includes a compensation based on the first layer and a compensation based on the second layer, and a newly added compensation portion between the first layer and the second layer is printed by the nozzle and the roller together.
Compared with the prior art, the method for controlling the deformation of the large-size high polymer material 3D printing material has the beneficial effects that: by redesigning the printing path and compensating the material deformation of the high polymer material during the temperature change, the accurate 3D printing of the large-size high polymer material is realized.
Detailed Description
The control method for the deformation of the large-size high polymer material 3D printing material comprises the following steps of redesigning a printing path: moving a printer nozzle on a first layer print path, the nozzle being displaced prior to a print path direction change to form an extrusion compensation to compensate for the print path direction change; adding an additionally generated compensation portion on an existing printing path, wherein the printing path comprises the compensation portion relative to the first layer; moving the nozzle and the roller according to a first layer of the printing path while printing with the nozzle; moving the nozzle and the roller according to the compensation while printing on a second layer of the print path; and the nozzle and the roller are matched to move towards the second layer along the compensation part of the first layer, so that the interlayer printing and combination of the first layer and the second layer are completed.
After the print paths of the first layer and the second layer are generated, the respective compensation parts are added to the whole print path.
Wherein the compensation portion is based on the shape of the outward bulge of the first layer, i.e. the outward compensation, the outward bulge of the compensation portion being located between the first layer and the second layer.
Wherein the method further comprises positioning the roller in alignment with the compensation portion of the first layer, rather than with the first layer, prior to printing the second layer moving the roller.
Wherein the method further comprises positioning the roller in alignment with the compensating portion such that a center of the roller overlaps a portion of the compensating portion with a substantial deviation from the first layer.
Wherein the position of the compensation portion is based on the relative position and relative angle of the first layer and the second layer.
Wherein the shape of the compensation portion determines the angle of change based on the relative position and orientation of the first layer and the second layer.
Wherein the compensation portion connects a first layer and a second layer of the printing path, wherein the compensation portion includes a compensation based on the first layer and a compensation based on the second layer (second layer compensation for the first layer), and a newly added compensation portion between the first layer and the second layer is printed by the nozzle and the roller together.
The principle of the invention is to compensate the material deformation of the high polymer material when the temperature changes: the expected material deformation during printing due to temperature variations and rollers during printing is achieved by introducing a slight compensation in the printing procedure, i.e. we compensate the printing in the opposite direction of the expected outward deformation of the material. This is achieved by adding a variable in the print path, which thus shifts slightly in the opposite direction (the opposite direction of the deformation). When the material is deformed inwardly, the material contacts the roller, the material is deformed inwardly and is fixed in position in the print path, and deformation will not occur. We add compensated variable programming code to the position of the print path and the throughput through repeated testing of different shapes, different materials. The code may be added automatically after the print path is computer-aided. Program modifications may also be added by manually modifying the program.
According to the invention, the printing path is redesigned and the material deformation of the high polymer material in the temperature change is compensated, so that the accurate 3D printing of the large-size high polymer material is realized.
While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The method for controlling the deformation of the large-size high polymer material 3D printing material is characterized by comprising the following steps: by redesigning the print path: moving a printer nozzle on a print path of the first layer, the nozzle being displaced prior to a change in print path direction to form an extrusion compensation to compensate for the change in print path direction; adding an additionally generated compensation portion on an existing printing path, wherein the printing path comprises the compensation portion relative to the first layer; moving the nozzle and the roller according to a first layer of the printing path while printing with the nozzle; moving the nozzle and the roller according to the compensation while printing on a second layer of the print path; and the nozzle and the roller are matched to move towards the second layer along the compensation part of the first layer, so that the interlayer printing and combination of the first layer and the second layer are completed.
2. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: after the print paths for the first and second layers are generated, the respective compensation portions are added to the overall print path.
3. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the compensation portion is based on the shape of the outward bulge of the first layer, i.e. the outward compensation, the outward bulge of the compensation portion being located between the first layer and the second layer.
4. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the method further includes positioning the roller in alignment with the compensation portion of the first layer, rather than with the first layer, prior to printing the second layer moving the roller.
5. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the method further includes positioning the roller in alignment with the compensating portion such that a center of the roller overlaps a portion of the compensating portion with a substantial deviation from the first layer.
6. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the position of the compensation portion is based on the relative position and relative angle of the first layer and the second layer.
7. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the shape of the compensation portion determines the angle of change based on the relative position and orientation of the first and second layers.
8. The method for controlling the deformation of the 3D printing material made of the large-size high polymer material according to claim 1, wherein the method comprises the following steps: the compensation portion connects a first layer and a second layer of the printing path, wherein the compensation portion includes a compensation based on the first layer and a compensation based on the second layer, and a newly added compensation portion between the first layer and the second layer is printed by the nozzle and the roller together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330610.2A CN114701166A (en) | 2022-03-31 | 2022-03-31 | Control method for deformation of large-size high polymer material 3D printing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330610.2A CN114701166A (en) | 2022-03-31 | 2022-03-31 | Control method for deformation of large-size high polymer material 3D printing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114701166A true CN114701166A (en) | 2022-07-05 |
Family
ID=82170955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210330610.2A Pending CN114701166A (en) | 2022-03-31 | 2022-03-31 | Control method for deformation of large-size high polymer material 3D printing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114701166A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150352794A1 (en) * | 2014-06-05 | 2015-12-10 | Commonwealth Scientific And Industrial Research Organisation | Distortion prediction and minimisation in additive manufacturing |
| CN105710368A (en) * | 2016-03-03 | 2016-06-29 | 西安铂力特激光成形技术有限公司 | Scanning path planning method for manufacturing three-dimensional body layer by layer and scanning method |
| CN106584840A (en) * | 2016-11-29 | 2017-04-26 | 江苏科技大学 | 3D printing method and device for one-way large-dimension products |
| CN109049720A (en) * | 2018-09-30 | 2018-12-21 | 西安点云生物科技有限公司 | A kind of no silk 3D printing method |
| CN110450558A (en) * | 2019-07-18 | 2019-11-15 | 深圳汉华工业数码设备有限公司 | A kind of width colour gamut printing process and method |
| CN112236289A (en) * | 2018-05-22 | 2021-01-15 | 曼特尔公司 | Method and system for automatic tool path generation |
| US20220026876A1 (en) * | 2019-04-30 | 2022-01-27 | Hewlett-Packard Development Company, L.P. | Geometrical compensations |
-
2022
- 2022-03-31 CN CN202210330610.2A patent/CN114701166A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150352794A1 (en) * | 2014-06-05 | 2015-12-10 | Commonwealth Scientific And Industrial Research Organisation | Distortion prediction and minimisation in additive manufacturing |
| CN105710368A (en) * | 2016-03-03 | 2016-06-29 | 西安铂力特激光成形技术有限公司 | Scanning path planning method for manufacturing three-dimensional body layer by layer and scanning method |
| CN106584840A (en) * | 2016-11-29 | 2017-04-26 | 江苏科技大学 | 3D printing method and device for one-way large-dimension products |
| CN112236289A (en) * | 2018-05-22 | 2021-01-15 | 曼特尔公司 | Method and system for automatic tool path generation |
| CN109049720A (en) * | 2018-09-30 | 2018-12-21 | 西安点云生物科技有限公司 | A kind of no silk 3D printing method |
| US20220026876A1 (en) * | 2019-04-30 | 2022-01-27 | Hewlett-Packard Development Company, L.P. | Geometrical compensations |
| CN110450558A (en) * | 2019-07-18 | 2019-11-15 | 深圳汉华工业数码设备有限公司 | A kind of width colour gamut printing process and method |
Non-Patent Citations (1)
| Title |
|---|
| 董嫣然;谭跃刚;张帆;张俊;: "连续碳纤维3D打印的压力轨迹实时跟踪算法研究", 数字制造科学, no. 01, pages 45 - 51 * |
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