CN114536772B - Intelligent partition control system in 3D printing system and control method thereof - Google Patents
Intelligent partition control system in 3D printing system and control method thereof Download PDFInfo
- Publication number
- CN114536772B CN114536772B CN202210418226.8A CN202210418226A CN114536772B CN 114536772 B CN114536772 B CN 114536772B CN 202210418226 A CN202210418226 A CN 202210418226A CN 114536772 B CN114536772 B CN 114536772B
- Authority
- CN
- China
- Prior art keywords
- laser
- abscissa
- region
- data
- point
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
An intelligent partition control system in a 3D printing system and a control method thereof comprise the following steps: the three-dimensional printing method comprises the following steps that two lasers and two galvanometers are installed on the 3D printing equipment, the two lasers are respectively a left laser located on the left side and a right laser located on the right side, the left laser and the right laser located on the right side are both in control connection with an upper computer, and a substrate is arranged below the two lasers; the module of operation on the host computer includes: the system comprises an analysis module, a division module, a first distribution module, a second distribution module, a third distribution module and a printing module; the defect that splicing errors during double-laser 3D printing cannot be fundamentally solved in the prior art is effectively overcome.
Description
Technical Field
The application relates to the technical field of 3D printing partition control, in particular to an intelligent partition control system in a 3D printing system and a control method thereof.
Background
The 3D printing is a manufacturing method which takes a computer three-dimensional design model as a blueprint, adopts a mode of overlapping materials layer by layer which is completely opposite to the traditional material reduction manufacturing technology (a processing mode of removing, cutting and assembling raw materials), and utilizes modes of laser beams, hot melting nozzles and the like to stack and bond special materials such as metal powder, ceramic powder, plastics, cell tissues and the like layer by layer through a software layering dispersion and numerical control forming system to finally overlap and form, so as to manufacture a three-dimensional physical entity model which is completely consistent with a corresponding digital model. With the continuous breakthrough of 3D printing research and development technology, 3D printing has been successfully applied to the fields of aerospace, biomedical, architecture, automobiles, and the like, and has continuously made breakthrough progress.
The double-laser printing has the characteristics of higher printing speed and shorter printing time compared with the single-laser printing, so that the double-laser printing is widely used. Because the double-laser printing divides a complete part into two parts and the two parts are respectively printed by two different lasers, although the two lasers make a great breakthrough in position splicing calibration, errors are always the same, but are reduced greatly, and cannot be eliminated fundamentally. Therefore, there is always an inexperienced defect of the splice on the printed part. The practical test proves that the error of about 0.2mm is at least. As shown in fig. 1, a vertical straight line marked with x =0 is used as a dividing line of the dual laser. The area to the left of the vertical straight line marked with x =0 is the irradiation range of the left laser light, and the area to the right of the red line is the irradiation range of the right laser light. After the double laser segmentation is used, the distance between the points on the actually printed part is measured and compared with the distance between the points on the part in the electronic model typesetting data, and the distance between the points on the part printed in the same laser irradiation range is found to be completely equal to the distance between the corresponding points on the part in the electronic model typesetting data, but the distance between the connecting lines of the points on the part in the two laser printing areas is reduced by 0.2mm compared with the distance between the corresponding points on the part in the electronic model typesetting data. As in fig. 1, the distance between the square column 1 and the square column 2 was measured using a vernier caliper, and they were within the irradiation range of the left laser at the same time as in the electronic model layout data; the distance between the square column 1 and the square column 3 measured by the vernier caliper is reduced by 0.2mm compared with the typesetting data of the electronic model, and the same problems exist in the square column 2 and the square column 4. This is the stitching error caused by the dual laser splitting.
The error in this splicing is mainly due to the fact that a part is printed by two lasers divided into two parts, each part being printed by a different laser. If the part is printed by single laser, the part is printed by single laser full-width irradiation, so that the problem of splicing does not exist.
Addressing this deficiency may lead to a solution from a number of perspectives. For example, the prior art often conceives from the viewpoint of process manufacturing and also conceives from the viewpoint of part typesetting skills, but the splicing error in the double-laser 3D printing cannot be fundamentally solved.
Disclosure of Invention
In order to solve the problems, the application provides an intelligent partition control system and a transmission method in a 3D printing system, and the defect that the splicing error in the prior art cannot be fundamentally solved in the double-laser 3D printing process is effectively overcome.
In order to overcome the defects in the prior art, the application provides a solution for an intelligent partition control system and a transmission method in a 3D printing system, which comprises the following specific steps:
an intelligent partition control system in a 3D printing system, comprising:
two lasers and two galvanometers are installed on the 3D printing equipment, the two lasers are respectively a left laser positioned on the left side and a right laser positioned on the right side, the left laser and the right laser positioned on the right side are in control connection with an upper computer, and a substrate is arranged below the two lasers;
the module of operation on host computer includes: the system comprises an analysis module, a division module, a first distribution module, a second distribution module, a third distribution module and a printing module;
the analysis module is used for analyzing the VBF data format of the electronic model of the part to be printed;
the dividing module is used for dividing the region to which each part to be printed belongs, namely judging the size relationship of the abscissa of a vertical straight line, wherein the abscissa X minimum value Xmin and the abscissa X maximum value Xmax in the bounding box information of each part to be printed and the set abscissa X are X = -a and X = a respectively, so as to determine whether each part to be printed belongs to the A region, the B region, the public region or the combined AB region;
the distribution module I is used for adding the part data of the part into a data array configured for the left laser if the part to be printed belongs to the area A; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
the second distribution module is used for distributing the part data of the part to the data array of the left laser or the data array of the right laser in a staggered manner if the part to be printed belongs to a public area;
the distribution module III is used for popping up a dialog box to enable a user to select whether to use double laser segmentation or to typeset the part again if the part to be printed belongs to the occupation AB area, and corresponding processing is executed after the user selects;
and the printing module is used for starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser.
Further, the parsing module is further configured to parse bounding box information of each part, where the bounding box information includes: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
Further, the two vertical straight lines with the set abscissa x being x = -a and x = a respectively are in four vertexes of a common area in which the irradiation range of the laser on the left side, the irradiation range of the laser on the right side and the substrate area are overlapped in a crossed manner, wherein the straight lines connecting the two vertexes on the left side in the four vertexes form a vertical straight line with the abscissa x being x = -a, the straight lines connecting the two vertexes on the right side in the four vertexes form a vertical straight line with the abscissa x being x = a, a is a positive real number, and the vertical straight line with the abscissa being 0 is an abscissa of a median line of the substrate area in the vertical direction;
the dividing module is further used for step 2-1: if the parts to be printed satisfy: -a < Xmax < = a, while Xmin < -a, then it belongs to the a region; if the parts to be printed satisfy: a < = Xmin < a, while Xmax > a, then it belongs to B region; if the parts to be printed satisfy: -a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it belongs to a common area; if the parts to be printed satisfy: xmin < -a, and Xmax > a, then it belongs to the occupied AB region.
Furthermore, the distribution module is used for reproducing VBF data and executing the analysis module if the user chooses to typeset the part again; if the user selects to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out double laser segmentation on the point-line coordinates on the part data.
Further, the third assigning module is further configured to perform a comparison method, where the comparison method includes: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0 and there is a previous vertex and the abscissa l < =0 of the previous vertex, adding the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is greater than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of the straight line formed by the current point and the previous point and the vertical straight line with the abscissa of 0 is firstly obtained, meanwhile, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0, but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
A control method of an intelligent partition control system in a 3D printing system comprises the following steps:
step 1: analyzing a VBF data format of an electronic model of a part to be printed;
further, the step 1 specifically includes: analyzing bounding box information of each part, wherein the bounding box information comprises: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
And 2, step: dividing the region to which each part to be printed belongs, namely judging the size relationship between the minimum value Xmin of the abscissa X and the maximum value Xmax of the abscissa X in the bounding box information of each part to be printed and the abscissa of two set vertical straight lines of which the abscissa X is X = -a and X = a respectively, and determining whether each part to be printed belongs to the A region, the B region, the public region or the combined AB region;
further, the two vertical straight lines with the set abscissa x being x = -a and x = a respectively are in four vertexes of a common area where the irradiation range of the left laser light, the irradiation range of the right laser light and the substrate area are overlapped in a crossed manner and the three are common, a straight line connecting the two vertexes on the left side of the four vertexes forms a vertical straight line with the abscissa x being x = -a, a straight line connecting the two vertexes on the right side of the four vertexes forms a vertical straight line with the abscissa x being x = a, a is a positive real number, and a vertical straight line with the abscissa being 0 is an abscissa of a median line of the substrate area in the vertical direction;
the step 2 specifically comprises:
step 2-1: if the parts to be printed satisfy: -a < Xmax < = a, while Xmin < -a, then it belongs to the a region;
step 2-2: if the parts to be printed satisfy: a < = Xmin < a, while Xmax > a, then it belongs to B region;
step 2-3: if the parts to be printed satisfy: -a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it belongs to a common area;
step 2-4: if the parts to be printed satisfy: xmin < -a, and Xmax > a, then it belongs to the occupied AB region.
And 3, step 3: if the part to be printed belongs to the area A, adding the part data of the part into a data array configured for the left laser; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
and 4, step 4: if the part to be printed belongs to the public area, the part data of the part is alternately distributed to the data array of the left laser or the data array of the right laser;
and 5: if the part to be printed belongs to the area AB, popping up a dialog box to allow a user to select whether to use double laser segmentation or to typeset the part again, and executing corresponding processing after the user selects;
further, in step 5, if the user chooses to typeset the part again, the VBF data is reproduced, and the step 1 is returned to execute;
if the user selects to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out double laser segmentation on the point-line coordinates on the part data.
Further, the method for performing double laser segmentation on the point-line coordinates on the part data by using a double laser segmentation algorithm includes:
a comparison method, comprising: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0, and there is a previous vertex and the abscissa l < =0 of the previous vertex, add the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is greater than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of the straight line formed by the current point and the previous point and the vertical straight line with the abscissa of 0 is firstly obtained, meanwhile, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0, but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
And 6: and starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser.
The invention has the beneficial effects that:
the actual space area of the substrate is fully utilized to divide the printing area of the part into a left laser (A laser) printing area, a right laser (B laser) printing area and a public area, and the AB printing area is occupied. And the print area is adopted as a matching principle in the design of the part allocation algorithm. And the first layer determines a certain area division method, and all the following layers adopt the area division method to ensure the part integrity of the printing data. The printing sequence of the intelligent partition printing part data is kept consistent with that of the original data in the algorithm design, and the intelligent partition printing part data cannot be changed randomly. Two processing methods are provided for parts occupying the AB area in the intelligent partition pairing mode, one method is to remind a user to typeset again, and the parts are not required to be typeset in three areas as much as possible; the other is to allow the user to perform double laser segmentation on the part spanning three regions, even if there is a splicing error, but because the number of parts is small, the processing mode is more flexible and diversified.
The defect that splicing errors during double-laser 3D printing cannot be fundamentally solved in the prior art is effectively overcome.
Drawings
Fig. 1 is an exemplary diagram of a prior art dual laser printing.
Fig. 2 is a schematic diagram of dual laser illumination in a 3D printing system of the present invention.
Fig. 3 is a schematic diagram of the common area of the present invention.
Fig. 4 is a schematic view of the irradiation range of the left laser or the right laser according to the present invention.
Fig. 5 is a schematic view of the substrate of the present invention divided into several small areas.
Fig. 6 is a schematic view of three regions of the laser irradiation range on the substrate of the present invention.
Fig. 7 is a schematic diagram of bounding box information of the present invention.
FIG. 8 is a schematic diagram of the present invention for dividing the region for each part to be printed.
Fig. 9 is a block diagram of a module of the present invention operating on the upper computer.
Fig. 10 is a flow chart of steps 1 through 6 of the present invention.
FIG. 11 is a flow chart of step 2-1 through step 2-4 of the present invention.
Detailed Description
The present application will be further described with reference to the accompanying drawings and examples.
The splicing error during the double-laser 3D printing is mainly caused by the fact that one part is divided into two parts by two lasers to be printed, and each part is printed by different lasers. If the part is printed by single laser, the part is printed by single laser full-width irradiation, so that the problem of splicing does not exist. Addressing this deficiency may lead to a solution from a number of perspectives. For example, the prior art often conceives from the viewpoint of process manufacturing and also conceives from the viewpoint of part typesetting skills, but the splicing error in the double-laser 3D printing cannot be fundamentally solved. The invention provides an intelligent partitioning scheme for solving the problem of double-laser splicing. The VBF data format is taken as an example to describe how to implement the solution of the intelligent partitioning algorithm.
As shown in fig. 1 to 11, an intelligent partition control system in a 3D printing system includes:
two lasers and two galvanometers are installed on the 3D printing equipment, the two lasers are respectively a left laser positioned on the left side and a right laser positioned on the right side, the left laser and the right laser positioned on the right side are in control connection with an upper computer, and a substrate is arranged below the two lasers; when the double-laser printing part is printed, two lasers refract light sources on the substrate through respective vibrating mirrors to generate a laser printing effect.
The structure that has installed two lasers and two galvanometers on 3D printing apparatus does: two lasers are respectively arranged on the left side and the right side in the 3D printing cabin, the laser positioned on the left side is a left laser, the laser positioned on the right side is a right laser, the laser emitted by the left laser is a left laser, the laser emitted by the right laser is a right laser, and the left laser and the right laser form double lasers; the left side laser instrument and the structure that is in the right laser instrument on the right and all is connected with host computer control is: the utility model discloses a laser imaging device, including the left side laser and the right laser, the mirror that shakes is shaken with the left side laser respectively with the laser on the left side and the laser on the right side is shaken the mirror and is connected with the mirror integrated circuit board that shakes on the left side and the mirror integrated circuit board that shakes on the right side, the mirror integrated circuit board that shakes on the left side shakes and the mirror integrated circuit board that shakes on the right side all is connected with host computer communication, and the mirror is shaken with the laser on the left side and the mirror integrated circuit board that shakes on the right side is just two mirrors that shake, and the host computer just can be through control like this the mirror integrated circuit board that shakes on the left side shakes and the mirror integrated circuit board that shakes on the right side lets the laser on the left side and the part execution 3D of the laser on the base plate that is in its below print respectively.
The module of operation on host computer includes: the system comprises an analysis module, a dividing module, a first distribution module, a second distribution module, a third distribution module and a printing module;
the analysis module is used for analyzing the VBF data format of the electronic model of the part to be printed;
the dividing module is used for dividing the region to which each part to be printed belongs, namely judging the size relationship of the abscissa of a vertical straight line, wherein the abscissa X minimum value Xmin and the abscissa X maximum value Xmax in the bounding box information of each part to be printed and the set abscissa X are X = -a and X = a respectively, so as to determine whether each part to be printed belongs to the A region, the B region, the public region or the combined AB region;
the distribution module I is used for adding the part data of the part into a data array configured for the left laser if the part to be printed belongs to the area A; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
the second distribution module is used for distributing the part data of the part to the data array of the left laser or the data array of the right laser in a staggered manner if the part to be printed belongs to a public area;
the distribution module III is used for popping up a dialog box to enable a user to select whether to use double laser segmentation or to typeset the part again if the part to be printed belongs to the occupation AB area, and corresponding processing is executed after the user selects;
and the printing module is used for starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser.
Further, the parsing module is further configured to parse bounding box information of each part, where the bounding box information includes: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
Further, the two vertical straight lines with the set abscissa x being x = -a and x = a respectively are in four vertexes of a common area where the irradiation range of the left laser light, the irradiation range of the right laser light and the substrate area are overlapped in a crossed manner and the three are common, a straight line connecting the two vertexes on the left side of the four vertexes forms a vertical straight line with the abscissa x being x = -a, a straight line connecting the two vertexes on the right side of the four vertexes forms a vertical straight line with the abscissa x being x = a, a is a positive real number, and a vertical straight line with the abscissa being 0 is an abscissa of a median line of the substrate area in the vertical direction;
the dividing module is further used for step 2-1: if the parts to be printed satisfy: -a < Xmax < = a, while Xmin < -a, then it belongs to the a region; if the parts to be printed satisfy: a < = Xmin < a, while Xmax > a, then it belongs to B region; if the part to be printed satisfies: -a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it then belongs to a common area; if the parts to be printed satisfy: xmin < -a, and Xmax > a, then it belongs to the occupied AB region.
Furthermore, the distribution module is used for remaking VBF data and executing the analysis module if the user chooses to typeset the part again; if the user chooses to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out the double laser segmentation on the point-line coordinates on the part data.
Further, the third assigning module is further configured to perform a comparison method, where the comparison method includes: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0 and there is a previous vertex and the abscissa l < =0 of the previous vertex, adding the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is more than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa of 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0 is firstly obtained, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0, but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
A control method of an intelligent partition control system in a 3D printing system comprises the following steps:
the intelligent partitioning algorithm applied in the control method mainly solves the problem that a part which is printed by double lasers has an error of 0.2mm at a split line splicing position, and essentially switches a double-laser printing area into a single-laser printing area.
In a 3D printing system, a schematic diagram of dual laser illumination is shown in fig. 2. The left large circle indicates the irradiation range of the left laser beam, and the right large circle indicates the irradiation range of the right laser beam. The middle small circle represents the size of the spatial region of the substrate as the substrate region, and the vertical line marked with x =0 is the median line of the substrate vertical direction. The left and right great circles in fig. 2 have a cross-overlapped elliptical-like area on the substrate area, which is called a common area. As shown by the gray filled area in fig. 3.
If a user can place the part in the irradiation range area of a certain laser when typesetting the electronic model data of the part, the problem of double-laser segmentation and splicing can be avoided. For example, the part is placed in the irradiation range of the left laser (the overlapping area of the left great circle and the substrate area, namely the sum of the first gray filled arc area connected with the common area on the left side in the figure 4 and the common area) or the irradiation range of the right laser (the overlapping area of the right great circle and the substrate area, namely the sum of the common area in the figure 4 and the second gray filled arc area connected with the common area on the right side) on the substrate as much as possible, so that the part is only left for one laser printing, and the double laser printing is converted into the single laser printing.
The four vertices of the common area are vertically connected into two straight lines, which results in two vertical straight lines as shown in fig. 5. These two lines divide the substrate area into several adjacent small areas as shown in fig. 5. In order to facilitate conceptual understanding and algorithmic design, the rightmost one of the small blocks is discarded from the left laser irradiation range and classified as the right laser irradiation range; the right laser irradiation range discards the leftmost one of the small areas and classifies it as the left laser irradiation range.
The small areas of the substrate in fig. 5 are re-integrated to obtain three areas as shown in fig. 6, the irradiation range of the left laser is the a area (the sum of the area belonging to the substrate area and adjoining the common area on the left side in the figure and the common area); the irradiation range of the right laser is a B region (the sum of a region which belongs to the substrate region and is adjacent to the common region on the right side in the figure and the common region); the irradiation range of the middle public area can be given to the left laser or the right laser, and the irradiation range depends on the specific algorithm design. The abscissa value x of the two vertical straight lines can be calculated from the positional relationship between the irradiation ranges of the great circles of the left and right laser beams and the substrate, for example, x = -a or x = a, and a is a real number, as shown in fig. 6.
When the user typesets the parts, the parts cannot be placed in a certain laser area when the user typesets the parts, so that the AB two areas are occupied. The software program reminds the user that if the user selects the former, the printing is carried out according to the double-laser segmentation mode, namely, a part spans the printing range of the two lasers, and is segmented and printed in the double-laser segmentation mode or is typeset again; if the user selects the latter, the part is re-laid. Such a treatment is more flexible and meets the requirements of the customers to the maximum. If the user chooses to still use the dual laser segmentation method, there will still be a 0.2mm splice error at the very individual part splice. It is believed that such parts are a few, and the user may be prompted on the interface to have a 0.2mm error to allow the user to comprehensively balance whether the dual laser separation is used.
The method comprises the following specific steps:
step 1: analyzing a VBF data format of an electronic model of a part to be printed;
before parsing the VBF data format of the electronic model of the part to be printed, the user uses 3D printing and layout software such as simplex 3D software to make the part to be printed into electronic model data, i.e. part data, and there may be many parts that are arranged in the spatial region of the substrate independently. And simulating the size of the actual part, the graphic path planning and setting the process parameters of the specific printing part when designing the model data. And after the typesetting is finished, storing the data according to a calculus slice form, and finally outputting VBF format data. VBF data includes xml files and bin files. The xml portion stores the total number of parts and bounding box (bounding rectangle) information, process parameters for each part. The bin part stores data information of each layer of the part after the part is sliced by calculus in a binary form. Therefore, xml data and bin data must be analyzed first when the control method of the intelligent partition is performed. The step 1 specifically comprises: the bounding box information of each part is analyzed, the bounding box information of the xml part is shown in fig. 7, that is, the bounding box information of the Dimensions node part includes: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
Step 2: dividing the region to which each part to be printed belongs, namely judging the size relationship between the minimum value Xmin of the abscissa X and the maximum value Xmax of the abscissa X in the bounding box information of each part to be printed and the abscissa of two set vertical straight lines of which the abscissa X is X = -a and X = a in the graph 6, so as to determine whether each part to be printed belongs to the region A, the region B, the public region or the region AB;
for example, a specific example is provided to show how the part data is divided into regions, as shown in fig. 8, the abscissa of the left vertical straight line-a = -30, the abscissa of the right vertical straight line a =30, the two vertical straight lines with x = -a and x = a abscissa x are respectively arranged in four vertexes of a common area which is formed by overlapping the irradiation range of the left laser beam, the irradiation range of the right laser beam and the substrate area in a crossed manner, the straight lines connecting the two vertexes on the left side of the four vertexes form a vertical straight line with x = a as the abscissa x, the straight lines connecting the two vertexes on the right side of the four vertexes form a vertical straight line with x = a as the abscissa x, a is a positive real number, and the vertical straight line with 0 as the abscissa of the median line of the vertical substrate bisecting area;
the step 2 specifically comprises:
step 2-1: if the parts to be printed satisfy: a < Xmax < = a while Xmin < -a, which then falls within the a region shown in fig. 6; such as part 1.
Step 2-2: if the part to be printed satisfies: a < = Xmin < a, while Xmax > a, then it belongs within the B region shown in fig. 6; such as part 3.
Step 2-3: if the parts to be printed satisfy: a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it belongs to the common area shown in fig. 6; therefore, the part can be printed by any one of the left laser or the right laser, and can be sequentially printed by the left laser or the right laser. This time, for example, printing to the left laser and the next time printing to the right laser, for example, part 2.
Step 2-4: if the part to be printed satisfies: xmin < -a and Xmax > a, i.e. the three integral regions where the part crosses two vertical lines, for example the part 4. It belongs to the pool AB region. At this time, the user is asked whether to perform double laser segmentation by using a vertical straight line with a horizontal coordinate of 0 or to typeset the part again, and if the user selects to typeset again, the VBF data is reproduced, and the program execution flow returns to step 1. If the user selects dual laser segmentation, the process continues down.
Here it is determined to which laser print each part belongs. Once determined, the data for that part on all layers is printed using that laser.
And sequentially printing the part data of the parts to be printed on each layer according to the analyzed VBF data and the determined laser printing mode adopted by each part. The method comprises the steps of firstly analyzing the part data of all parts to be printed in a first layer, and processing, namely sequentially reading each part data on the current layer and judging the region type of the part data.
And step 3: if the part to be printed belongs to the area A, adding the part data of the part into a data array configured for the left laser; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
and 4, step 4: if the part to be printed belongs to the public area, depending on the specific processing algorithm, the part data of the part is temporarily distributed to the data array of the left laser or the data array of the right laser in an interleaving manner, for example, the data array distributed to the left laser at this time and the data array distributed to the right laser at the next time are continuously and cyclically alternated in the following manner;
and 5: if the part to be printed belongs to the area AB, popping up a dialog box to allow a user to select whether to use double laser segmentation or to typeset the part again, and executing corresponding processing after the user selects;
in step 5, if the user chooses to typeset the part again, the VBF data is reproduced, and the step 1 is returned to execute;
if the user selects to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out double laser segmentation on the point-line coordinates on the part data.
The method for performing double-laser segmentation on the point-line coordinates on the part data by using the double-laser segmentation algorithm comprises the following steps of:
a comparison method, comprising: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0 and there is a previous vertex and the abscissa l < =0 of the previous vertex, adding the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is greater than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of the straight line formed by the current point and the previous point and the vertical straight line with the abscissa of 0 is firstly obtained, meanwhile, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0 but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
Thus, after one part is processed by the same flow as described above, the next part is processed. Until all parts to be printed have been processed.
Step 6: and starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser. After the step 6 is finished, the step 1 can be returned to execute the printing of the subsequent parts.
When two laser 3D printed the part, there was about 0.2 mm's error in the part that falls in two laser printing regions concatenation department. In order to solve the splicing error, a solution of an intelligent partitioning algorithm is provided. And the double laser printing area is converted into the single laser printing area, so that splicing errors are avoided.
The present application has been described above in an illustrative manner by way of embodiments, and it will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, and various changes, modifications and substitutions can be made without departing from the scope of the present application.
Claims (8)
1. An intelligent partition control system in a 3D printing system, comprising:
two lasers and two galvanometers are installed on the 3D printing equipment, the two lasers are respectively a left laser positioned on the left side and a right laser positioned on the right side, the left laser and the right laser positioned on the right side are in control connection with an upper computer, and a substrate is arranged below the two lasers;
the module of operation on host computer includes: the system comprises an analysis module, a division module, a first distribution module, a second distribution module, a third distribution module and a printing module;
the analysis module is used for analyzing the VBF data format of the electronic model of the part to be printed;
the dividing module is used for dividing the region to which each part to be printed belongs, namely judging the size relationship of the abscissa of a vertical straight line of which the abscissa X minimum value Xmin and the abscissa X maximum value Xmax in bounding box information of each part to be printed and the two set abscissas X are respectively X = -a and X = a, so as to determine whether each part to be printed belongs to an A region, a B region, a common region or a combined AB region, wherein the two set abscissas X are respectively the vertical straight lines of which X = -a and X = a in the irradiation range of the laser light on the left side, the irradiation range of the laser light on the right side and the substrate region are overlapped in a crossed manner, in four vertexes of the common region shared by the four vertexes, a straight line connecting the two vertexes on the left side in the four vertexes and forming a vertical straight line of which the abscissa X is X = -a, and a straight line connecting the two vertexes on the right side in the four vertexes forming a vertical straight line of which the abscissa X is X = a, a is a positive real number, and a vertical straight line with an abscissa of 0 is an abscissa of a median line of a vertical median substrate area; the dividing module is further used for step 2-1: if the part to be printed satisfies: -a < Xmax < = a, while Xmin < -a, then it belongs to the a region; if the parts to be printed satisfy: a < = Xmin < a, while Xmax > a, then it belongs to B region; if the parts to be printed satisfy: -a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it belongs to a common area; if the parts to be printed satisfy: xmin < -a and Xmax > a, which belong to an occupied AB region, the left great circle represents an irradiation range of the left laser, the right great circle represents an irradiation range of the right laser, the middle small circle represents a size of a space region of the substrate as a substrate region, the left great circle and the right great circle have a cross-overlapped ellipse-like region on the substrate region, which is a common region, the a region is a sum of a region belonging to the substrate region and adjoining the common region on the left side and the common region, and the B region is a sum of a region belonging to the substrate region and adjoining the common region on the right side and the common region;
the distribution module I is used for adding the part data of the part into a data array configured for the left laser if the part to be printed belongs to the area A; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
the distribution module II is used for distributing the part data of the part to the data array of the left laser or the data array of the right laser in a staggered manner if the part to be printed belongs to the public area;
the distribution module III is used for popping up a dialog box to enable a user to select whether to use double laser segmentation or to typeset the part again if the part to be printed belongs to the occupation AB area, and corresponding processing is executed after the user selects;
and the printing module is used for starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser.
2. The system for intelligently partitioning control in a 3D printing system according to claim 1, wherein the parsing module is further configured to parse bounding box information of each part, the bounding box information comprising: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
3. The intelligent partition control system in 3D printing system of claim 2, wherein the distribution module is three-purpose for remaking VBF data and executing the parsing module if the user chooses to typeset the part again; if the user chooses to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out the double laser segmentation on the point-line coordinates on the part data.
4. The system for controlling the intelligent partition in the 3D printing system according to claim 3, wherein the third distribution module is further configured to execute a comparison method, and the comparison method comprises: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0 and there is a previous vertex and the abscissa l < =0 of the previous vertex, adding the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is greater than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of the straight line formed by the current point and the previous point and the vertical straight line with the abscissa of 0 is firstly obtained, meanwhile, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0 but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
5. A control method of an intelligent partition control system in a 3D printing system is characterized by comprising the following steps:
step 1: analyzing a VBF data format of an electronic model of a part to be printed;
and 2, step: dividing the region to which each part to be printed belongs, namely judging the size relation of the abscissa of a vertical straight line of which the abscissa X minimum value Xmin and the abscissa X maximum value Xmax in the bounding box information of each part to be printed and the two set abscissas X are respectively X = -a and X = a, so as to determine whether each part to be printed belongs to the A region, the B region, the common region or the combined AB region, wherein the two set vertical straight lines of which the abscissas X are respectively X = -a and X = a are in four vertexes of the common region which are intersected and overlapped with the irradiation range of the laser on the left side, the irradiation range of the laser on the right side and the substrate region, the straight line connecting the two vertexes on the left side in the four vertexes forms a vertical straight line of which the abscissa X is X = -a, and the straight line connecting the two vertexes on the right side in the four vertexes forms a vertical straight line of which the abscissa X is X = a, a is a positive real number, a vertical straight line with an abscissa of 0 is an abscissa of a median line of a vertically-divided substrate region, a left great circle represents an irradiation range of left laser, a right great circle represents an irradiation range of right laser, a middle small circle represents a size of a space region of a substrate serving as the substrate region, the left great circle and the right great circle have a similar elliptical region which is overlapped in a cross manner on the substrate region and is a common region, a region A is a sum of a region which belongs to the substrate region and is adjacent to the common region on the left side and the common region, and a region B is a sum of a region which belongs to the substrate region and is adjacent to the common region on the right side and the common region;
and step 3: if the part to be printed belongs to the area A, adding the part data of the part into a data array configured for the left laser; if the part to be printed belongs to the B area, adding the part data of the part into a data array configured to the right laser;
and 4, step 4: if the part to be printed belongs to the public area, the part data of the part is alternately distributed to the data array of the left laser or the data array of the right laser;
and 5: if the part to be printed belongs to the area AB, popping up a dialog box to allow a user to select whether to use double laser segmentation or to typeset the part again, and executing corresponding processing after the user selects;
step 6: starting two threads to respectively control the left laser to print data in the data array of the left laser and control the right laser to print data in the data array of the right laser;
the step 2 specifically comprises:
step 2-1: if the part to be printed satisfies: -a < Xmax < = a, while Xmin < -a, then it belongs to the a region;
step 2-2: if the part to be printed satisfies: a < = Xmin < a, while Xmax > a, then it belongs to B region;
step 2-3: if the part to be printed satisfies: -a < Xmax < = a, while-a < = Xmin < a, i.e. the part belongs between two vertical lines, it then belongs to a common area;
step 2-4: if the parts to be printed satisfy: xmin < -a, and Xmax > a, then it belongs to the occupied AB region.
6. The method for controlling the intelligent partition control system in the 3D printing system according to claim 5, wherein the step 1 specifically comprises: analyzing bounding box information of each part, wherein the bounding box information comprises: an abscissa X minimum value Xmin of the bounding box, an abscissa X maximum value Xmax of the bounding box, an ordinate Y minimum value Ymin of the bounding box, an ordinate Y maximum value Ymax of the bounding box, a Z minimum value Zmin in Z-axis direction of the bounding box, and Z maximum value Zmax data in Z-axis direction of the bounding box.
7. The method for controlling an intelligent partition control system in a 3D printing system according to claim 5, wherein in step 5, if the user chooses to typeset the part again, the VBF data is re-created and the method returns to step 1 to be executed;
if the user selects to use the double laser segmentation, the double laser segmentation algorithm is used for carrying out double laser segmentation on the point-line coordinates on the part data.
8. The method for controlling the smart partition control system in the 3D printing system according to claim 7, wherein the method for performing double laser division on the dot line coordinates on the part data by using a double laser division algorithm includes:
a comparison method, comprising: sequentially reading each point coordinate in the part data of the part, judging the position relationship between the abscissa of the current point and the vertical straight line with the abscissa of 0, and adding the current point into the data array of the left laser if the abscissa k of the current point is less than the abscissa of the vertical straight line with the abscissa of 0, namely k < =0, and the last vertex does not exist; if k < =0 and there is a previous vertex and the abscissa l < =0 of the previous vertex, adding the current point to the data array of the left laser; if k is less than 0, and the previous vertex exists and the abscissa l of the previous vertex is greater than 0, acquiring the intersection point of a straight line formed by the current point and the previous point and a vertical straight line with the abscissa being 0, adding the intersection point into the data array of the left laser, adding the data array of the right laser, and adding the current point into the data array of the left laser; if k =0, and there is a previous vertex and the abscissa of the previous vertex, l, is >0, the data array for the right laser is added directly; if k is greater than 0 and the previous point exists, if the abscissa m of the previous point is less than 0, the intersection point of the straight line formed by the current point and the previous point and the vertical straight line with the abscissa of 0 is firstly obtained, meanwhile, the intersection point is added into the data array of the left laser and the data array of the right laser, and then the current point is added into the data array of the right laser; if k is greater than 0, but the last point does not exist, directly adding the current point to the data array of the right laser; if k is greater than 0, the last point exists, and the abscissa m of the last point is greater than 0, directly adding the data array of the right laser;
thus, one point is processed by the comparison method, and the next point is judged by the same comparison method until all points in the part data of the current part are processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418226.8A CN114536772B (en) | 2022-04-21 | 2022-04-21 | Intelligent partition control system in 3D printing system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418226.8A CN114536772B (en) | 2022-04-21 | 2022-04-21 | Intelligent partition control system in 3D printing system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114536772A CN114536772A (en) | 2022-05-27 |
| CN114536772B true CN114536772B (en) | 2022-07-12 |
Family
ID=81667009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210418226.8A Active CN114536772B (en) | 2022-04-21 | 2022-04-21 | Intelligent partition control system in 3D printing system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114536772B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687077A (en) * | 2009-10-08 | 2012-09-19 | 派因布鲁克成像系统公司 | An optical imaging writer system |
| CN106003714A (en) * | 2016-05-27 | 2016-10-12 | 上海联泰科技股份有限公司 | Multi-galvanometer calibration method, printing method and optical system adopted for 3D printing |
| CN106363768A (en) * | 2015-07-20 | 2017-02-01 | Slm 方案集团股份公司 | Method and device for controlling an irradiation system in dependence on a work piece geometry |
| WO2018089080A1 (en) * | 2016-11-08 | 2018-05-17 | The Curators Of The University Of Missouri | Foil-based additive manufacturing system and method |
| JP2018094817A (en) * | 2016-12-14 | 2018-06-21 | 三菱重工業株式会社 | Method for manufacturing three dimensional molding, component, and manufacturing program |
| CN109396657A (en) * | 2018-11-16 | 2019-03-01 | 北京易加三维科技有限公司 | More Laser correctives and joining method for increasing material manufacturing equipment |
| WO2019041719A1 (en) * | 2017-09-04 | 2019-03-07 | 上海联泰科技股份有限公司 | Data processing method for three-dimensional model, and 3d printing method and system |
| CN111070685A (en) * | 2019-12-24 | 2020-04-28 | 广州晋原铭科技有限公司 | 3D printing method based on multi-galvanometer |
| CN111097906A (en) * | 2019-12-20 | 2020-05-05 | 湖南华曙高科技有限责任公司 | Scanning distribution method and device based on multiple lasers and three-dimensional object manufacturing equipment |
| CN111361147A (en) * | 2020-05-27 | 2020-07-03 | 上海唯视锐光电技术有限公司 | Gradually-spliced multi-exposure large-format 3D printing system and using method |
| CN211441194U (en) * | 2019-12-28 | 2020-09-08 | 上海唯视锐光电技术有限公司 | Concatenation formula 3D printing device |
| WO2020211887A1 (en) * | 2019-04-17 | 2020-10-22 | MTU Aero Engines AG | Layer building process and layer building apparatus for the additive manufacture of at least one wall of a component, as well as computer program product and storage medium |
| CN214324184U (en) * | 2020-11-27 | 2021-10-01 | 湖南华曙高科技有限责任公司 | Double-laser scanning splicing correction device for additive manufacturing |
| CN113560602A (en) * | 2021-08-09 | 2021-10-29 | 中国航空制造技术研究院 | Splicing area forming precision compensation method for multi-laser powder bed additive manufactured part |
| CN113942230A (en) * | 2021-12-20 | 2022-01-18 | 南京铖联激光科技有限公司 | 3D printing control system for double-laser segmentation and segmentation method thereof |
| CN114228138A (en) * | 2021-07-09 | 2022-03-25 | 杭州正向增材制造技术有限公司 | Part forming device and forming method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030233630A1 (en) * | 2001-12-14 | 2003-12-18 | Torbjorn Sandstrom | Methods and systems for process control of corner feature embellishment |
| JP6310560B2 (en) * | 2013-12-17 | 2018-04-11 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Laser printing system |
| US20150266235A1 (en) * | 2014-03-19 | 2015-09-24 | Autodesk, Inc. | Systems and methods for improved 3d printing |
| CN108927993B (en) * | 2017-05-26 | 2020-12-15 | 三纬国际立体列印科技股份有限公司 | Photocuring 3D printing method of multi-light source module |
| EP3666523A1 (en) * | 2018-12-11 | 2020-06-17 | Concept Laser GmbH | Method for calibrating an irradiation device for an apparatus for additively manufacturing three-dimensional objects |
| EP3722079A1 (en) * | 2019-04-10 | 2020-10-14 | Concept Laser GmbH | Method for calibrating an irradiation device of an apparatus for additively manufacturing three-dimensional objects |
| CN111974990A (en) * | 2019-05-24 | 2020-11-24 | 天津大学 | Method for repairing defects of overlapping positions of adjacent subareas formed by selective laser melting |
| CN110666166B (en) * | 2019-08-22 | 2022-02-08 | 广东技术师范大学 | Multi-laser high-precision 3D printer and printing method thereof |
| DE102019007982A1 (en) * | 2019-11-18 | 2021-05-20 | Voxeljet Ag | 3D printing device with advantageous emitter unit and process |
| JP6892957B1 (en) * | 2020-07-22 | 2021-06-23 | 株式会社ソディック | Laminated modeling method and laminated modeling system |
| CN113798511B (en) * | 2021-08-19 | 2023-03-03 | 鞍钢股份有限公司 | Double-laser lap joint calibration method based on SLM additive manufacturing technology |
| CN113770380A (en) * | 2021-09-07 | 2021-12-10 | 贵州大学 | Multi-beam laser selective melting processing method and processing device |
| CN114211003B (en) * | 2021-12-03 | 2023-06-30 | 湖南华曙高科技股份有限公司 | Multi-laser system overlap correction method for additive manufacturing equipment |
-
2022
- 2022-04-21 CN CN202210418226.8A patent/CN114536772B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687077A (en) * | 2009-10-08 | 2012-09-19 | 派因布鲁克成像系统公司 | An optical imaging writer system |
| CN106363768A (en) * | 2015-07-20 | 2017-02-01 | Slm 方案集团股份公司 | Method and device for controlling an irradiation system in dependence on a work piece geometry |
| CN106003714A (en) * | 2016-05-27 | 2016-10-12 | 上海联泰科技股份有限公司 | Multi-galvanometer calibration method, printing method and optical system adopted for 3D printing |
| WO2018089080A1 (en) * | 2016-11-08 | 2018-05-17 | The Curators Of The University Of Missouri | Foil-based additive manufacturing system and method |
| JP2018094817A (en) * | 2016-12-14 | 2018-06-21 | 三菱重工業株式会社 | Method for manufacturing three dimensional molding, component, and manufacturing program |
| WO2019041719A1 (en) * | 2017-09-04 | 2019-03-07 | 上海联泰科技股份有限公司 | Data processing method for three-dimensional model, and 3d printing method and system |
| CN109396657A (en) * | 2018-11-16 | 2019-03-01 | 北京易加三维科技有限公司 | More Laser correctives and joining method for increasing material manufacturing equipment |
| WO2020211887A1 (en) * | 2019-04-17 | 2020-10-22 | MTU Aero Engines AG | Layer building process and layer building apparatus for the additive manufacture of at least one wall of a component, as well as computer program product and storage medium |
| CN111097906A (en) * | 2019-12-20 | 2020-05-05 | 湖南华曙高科技有限责任公司 | Scanning distribution method and device based on multiple lasers and three-dimensional object manufacturing equipment |
| CN111070685A (en) * | 2019-12-24 | 2020-04-28 | 广州晋原铭科技有限公司 | 3D printing method based on multi-galvanometer |
| CN211441194U (en) * | 2019-12-28 | 2020-09-08 | 上海唯视锐光电技术有限公司 | Concatenation formula 3D printing device |
| CN111361147A (en) * | 2020-05-27 | 2020-07-03 | 上海唯视锐光电技术有限公司 | Gradually-spliced multi-exposure large-format 3D printing system and using method |
| CN214324184U (en) * | 2020-11-27 | 2021-10-01 | 湖南华曙高科技有限责任公司 | Double-laser scanning splicing correction device for additive manufacturing |
| CN114228138A (en) * | 2021-07-09 | 2022-03-25 | 杭州正向增材制造技术有限公司 | Part forming device and forming method |
| CN113560602A (en) * | 2021-08-09 | 2021-10-29 | 中国航空制造技术研究院 | Splicing area forming precision compensation method for multi-laser powder bed additive manufactured part |
| CN113942230A (en) * | 2021-12-20 | 2022-01-18 | 南京铖联激光科技有限公司 | 3D printing control system for double-laser segmentation and segmentation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 金属激光选区熔化（SLM）技术及设备概况;尚广庆, 梁伟;《苏州市职业大学学报》;20180930;第29卷(第3期);第17-21页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114536772A (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH10261568A (en) | Method for preparing charged beam lithography data | |
| CN109532006B (en) | Adaptive layer thickness slicing method and printing system | |
| KR20040052499A (en) | Image processing apparatus and constituent parts thereof, rendering method | |
| CN113942230B (en) | 3D printing control system for double-laser segmentation and segmentation method thereof | |
| CN114536772B (en) | Intelligent partition control system in 3D printing system and control method thereof | |
| NL8601488A (en) | METHOD FOR FILLING UP SURFACE PARTS OF AN IMAGE WITH A SURFACE PATTERN | |
| JPS60262122A (en) | Sticking method of original picture | |
| CN111319264A (en) | Data processing method applied to 3D printing equipment and 3D printing equipment | |
| JPH10222691A (en) | Graphic displaying method, graphic displaying device and medium recording graphic display processing program | |
| CN111444573A (en) | Ship symmetric segment model generation method and device, storage medium and terminal | |
| CN107457981A (en) | 3D printing method and system | |
| JPH09166957A (en) | Device for constructing three-dimensional model for design and construction of bridge | |
| JPH0981603A (en) | Data preparation method for component array | |
| AU4953800A (en) | Method and apparatus for rendering images | |
| JPH04309187A (en) | Mapping method for stereoscopic model | |
| JPH09305791A (en) | Device and method for generating three-dimensional image | |
| US4870693A (en) | Mask inspecting apparatus | |
| JPH07220115A (en) | Three-dimensional cad system | |
| JPH06176168A (en) | Computer graphics preparing device | |
| JPH0644350A (en) | Method for generating solid-state element of finite element method mainly composed of hexahedron due to plane display | |
| JPH07152912A (en) | Pattern matching method | |
| Wyatt et al. | A volumetric 3D LED display | |
| CN117698130A (en) | 3D printing method, system, equipment and medium | |
| JP2000019315A (en) | Diffraction grating pattern and its manufacture | |
| JPS622590A (en) | Laser drawing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |