CN112091209A - 3D printing implementation method for automobile A column guard plate - Google Patents
3D printing implementation method for automobile A column guard plate Download PDFInfo
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- CN112091209A CN112091209A CN202010791850.3A CN202010791850A CN112091209A CN 112091209 A CN112091209 A CN 112091209A CN 202010791850 A CN202010791850 A CN 202010791850A CN 112091209 A CN112091209 A CN 112091209A
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- printing
- automobile
- guard plate
- implementation method
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- 238000010146 3D printing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 10
- 238000007639 printing Methods 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Abstract
The invention discloses a 3D printing implementation method for an automobile A-pillar guard plate, which comprises the following steps: according to the size and performance requirements of the part, selecting a proper position for splitting, and specifically splitting and selecting a cuttage and pin connection mode; the cutting structure is divided into an AB part, wherein the A part is designed into a convex structure, the B part is designed into a concave structure, and the parts are fastened and connected through mutual matching; the 3D printing implementation method for the automobile A-column guard plate has a very clear practical value, is beneficial to solving the problem of low splicing strength of large-size parts when being applied to the 3D printing industry, improves the problem of Z-axis stress defect existing in the direct 3D printing of the original parts, and accelerates the popularization of the 3D printing technology in the final application scene based on the structure optimization scheme of the 3D printing technology.
Description
Technical Field
The invention relates to the field of 3D printing, in particular to a method for realizing 3D printing of an automobile A-column guard plate.
Background
The patent relates to a product structure mainly used for interior trim supporting structural parts of automobiles, ships, airplanes and the like, and the traditional processing mode can only be realized through an injection molding process, but for some small-batch customized products, the injection molding processing cost is the bottleneck for preventing new products from being released. In order to change the current situation, manufacturers seek a 3D printing mode to process the interior trim parts, but the product performance of direct printing cannot meet the requirements due to the disjointing of the structural design and the 3D printing of the products of the manufacturers. Therefore, the problem of a 3D printing implementation of a large-sized interior trim part is to be solved urgently. The size of the A-pillar guard plate is about 1.8 meters long, the A-pillar guard plate is a thin-wall part, and the cost of traditional injection molding processing is high, which is obviously not cost-effective for some small-batch customized vehicle types. Therefore, the processing significance of realizing the A column guard plate in a 3D printing mode is great.
Disclosure of Invention
Aiming at the defects of the background art, the invention provides a 3D printing implementation method for an automobile A-pillar guard plate, and solves the problems in the background art.
The invention provides the following technical scheme: A3D printing implementation method for an automobile A-pillar guard plate comprises the following steps:
firstly, selecting a proper part for splitting according to the size and performance requirements of a part, and specifically splitting and selecting a cuttage and pin connection mode;
step two, the cutting structure is divided into an AB part, wherein the A part is designed into a convex structure, the B part is designed into a concave structure, and the parts are fastened and connected through mutual matching;
step three, respectively splitting the convex structure designed by the part A and the concave structure designed by the part B to perform 3D printing;
step four, fixing the convex structure designed on the part A and the concave structure designed on the part B in the original position in a gluing mode;
fifthly, splitting the buckle part, and ensuring that the printing direction of the stress part of the buckle is not in the Z direction with weak stress in a mortise and tenon connection and bonding mode;
and step six, testing the connection stability of the disassembled convex structure designed by the part A and the concave structure designed by the part B by using a drawing force test.
Preferably, the pin specification is phi 3.175mm by 15.8 mm.
Preferably, the length and the width of the automobile A-pillar guard plate are 1725.99cm and 552.77cm respectively.
Preferably, the method for analyzing the result of the drawing experiment may adopt one of a limit balance method and a finite element method.
Preferably, the pull-out force test is performed using a pull-out force tester.
The invention has the following beneficial effects: the 3D printing implementation method for the automobile A-column guard plate has the advantages that the splicing structure is easy to implement, the practical value is very clear, and the application in the 3D printing industry is beneficial to solving the problem that large-size parts are difficult to implement; the application in the 3D printing industry is beneficial to solving the problem of low simple splicing strength of large-size parts; the problem of Z-axis stress defect existing in the original direct 3D printing of parts is solved; the popularization of the 3D printing technology in the final application scene is accelerated.
Drawings
FIG. 1 is a schematic diagram of an overall split structure of an implementation method of 3D printing of an A-pillar guard plate of an automobile according to the present invention;
FIG. 2 is a schematic overall structure diagram of a 3D printing implementation method for an automobile A-pillar guard plate according to the present invention;
FIG. 3 is a schematic diagram illustrating a connection structure protruding outward according to the implementation method of 3D printing on the automobile pillar A guard plate;
fig. 4 is a schematic diagram of a connection structure recess of the implementation method of 3D printing of the automobile a-pillar guard plate according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The drawings in the embodiments of the invention: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.
Referring to fig. 1-4, a 3D printing implementation method for an automobile a-pillar guard plate includes the following steps:
firstly, selecting a proper part for splitting according to the size and performance requirements of a part, and specifically splitting and selecting a cuttage and pin connection mode;
step two, the cutting structure is divided into an AB part, wherein the A part is designed into a convex structure, the B part is designed into a concave structure, and the parts are fastened and connected through mutual matching;
step three, respectively splitting the convex structure designed by the part A and the concave structure designed by the part B to perform 3D printing;
step four, fixing the convex structure designed on the part A and the concave structure designed on the part B in the original position in a gluing mode;
fifthly, splitting the buckle part, and ensuring that the printing direction of the stress part of the buckle is not in the Z direction with weak stress in a mortise and tenon connection and bonding mode;
and step six, testing the connection stability of the disassembled convex structure designed by the part A and the concave structure designed by the part B by using a drawing force test.
The specification of the pin is phi 3.175mm multiplied by 15.8 mm.
The length and the width of the automobile A-pillar guard plate are 1725.99cm and 552.77cm respectively.
The analysis method of the drawing experiment result can adopt one of a limit balance method and a finite element method.
The pull force test was performed using a pull force tester.
It should be noted that, for a large-size 3D printing solution of an a-pillar guard plate, the size of the a-pillar guard plate is close to 1.8 meters, and it is difficult to directly form the a-pillar guard plate by 3D printing, and the size of the a-pillar guard plate exceeds the size of the existing printing equipment in the market. The strength requirements of the thin-wall parts such as the A column cannot meet the strength requirements of normal use by simple splitting, printing and bonding, and after a large number of splicing schemes are verified, the following schemes are selected for printing implementation of the final parts;
and selecting a proper part for splitting according to the size and performance requirements of the part. The mode of cuttage and pin joint is selected in the concrete split, the phenomenon that split positions are poor in performance is avoided by the aid of the processing mode, and meanwhile, connection of parts can be fastened more firmly through the pin. The cutting structure is divided into an AB part, wherein the A part is designed into a convex structure, the B part is designed into a concave structure, and the parts are fastened and connected through mutual matching;
for the interior trim part structure, some core stress points exist, the traditional injection molding mode is adopted for processing, the phenomenon of stress weak points does not exist, but for the 3D printing FDM technology, due to the fact that the Z-axis strength defect exists, parts are printed slowly to meet the use requirement, and application and popularization of 3D printing on final parts are greatly limited. The buckle part is split, and the printing direction of the buckle stress part is ensured to be not in the direction Z with weak stress by means of mortise and tenon connection and bonding. The method can pass a customer pull force test through verification;
the traditional machining process is innovatively applied to the field of 3D printing, the structure is improved and optimized by combining the characteristics of 3D printing, and the 3D printing realizes the application of final parts in the field of automobile manufacturing. This is a subversive change for the entire automotive industry. Therefore, the invention has important significance for the development of the automobile industry. By popularizing the connection mode provided by the invention, the progress of additive manufacturing in the automobile industry can be greatly accelerated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A3D printing implementation method for an automobile A-pillar guard plate is characterized by comprising the following steps:
firstly, selecting a proper part for splitting according to the size and performance requirements of a part, and specifically splitting and selecting a cuttage and pin connection mode;
step two, the cutting structure is divided into an AB part, wherein the A part is designed into a convex structure, the B part is designed into a concave structure, and the parts are fastened and connected through mutual matching;
step three, respectively splitting the convex structure designed by the part A and the concave structure designed by the part B to perform 3D printing;
step four, fixing the convex structure designed on the part A and the concave structure designed on the part B in the original position in a gluing mode;
fifthly, splitting the buckle part, and ensuring that the printing direction of the stress part of the buckle is not in the Z direction with weak stress in a mortise and tenon connection and bonding mode;
and step six, testing the connection stability of the disassembled convex structure designed by the part A and the concave structure designed by the part B by using a drawing force test.
2. The automobile A-pillar guard plate 3D printing implementation method of claim 1, wherein: the specification of the pin is phi 3.175mm multiplied by 15.8 mm.
3. The automobile A-pillar guard plate 3D printing implementation method of claim 1, wherein: the length and the width of the automobile A-pillar guard plate are 1725.99cm and 552.77cm respectively.
4. The automobile A-pillar guard plate 3D printing implementation method of claim 1, wherein: the analysis method of the drawing experiment result can adopt one of a limit balance method and a finite element method.
5. The automobile A-pillar guard plate 3D printing implementation method of claim 1, wherein: the pull force test was performed using a pull force tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791850.3A CN112091209A (en) | 2020-08-08 | 2020-08-08 | 3D printing implementation method for automobile A column guard plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791850.3A CN112091209A (en) | 2020-08-08 | 2020-08-08 | 3D printing implementation method for automobile A column guard plate |
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| Publication Number | Publication Date |
|---|---|
| CN112091209A true CN112091209A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010791850.3A Pending CN112091209A (en) | 2020-08-08 | 2020-08-08 | 3D printing implementation method for automobile A column guard plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878876A (en) * | 2021-09-15 | 2022-01-04 | 中国第一汽车股份有限公司 | 3D printing structure of large-size automotive interior part and 3D printing manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226988A (en) * | 2014-08-25 | 2014-12-24 | 深圳光韵达光电科技股份有限公司 | 3D printing manufacturing method for large-size part |
| CN107023541A (en) * | 2017-04-12 | 2017-08-08 | 四川长虹电器股份有限公司 | The package assembly of product based on 3D printing |
| WO2018226877A1 (en) * | 2017-06-07 | 2018-12-13 | Divergent Technologies, Inc. | An interconnected deflectable panel and node and methods for producing same |
| CN111037917A (en) * | 2019-12-25 | 2020-04-21 | 北京航天控制仪器研究所 | FDM printing method, system and medium based on model splitting and splicing printing |
-
2020
- 2020-08-08 CN CN202010791850.3A patent/CN112091209A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226988A (en) * | 2014-08-25 | 2014-12-24 | 深圳光韵达光电科技股份有限公司 | 3D printing manufacturing method for large-size part |
| CN107023541A (en) * | 2017-04-12 | 2017-08-08 | 四川长虹电器股份有限公司 | The package assembly of product based on 3D printing |
| WO2018226877A1 (en) * | 2017-06-07 | 2018-12-13 | Divergent Technologies, Inc. | An interconnected deflectable panel and node and methods for producing same |
| CN111037917A (en) * | 2019-12-25 | 2020-04-21 | 北京航天控制仪器研究所 | FDM printing method, system and medium based on model splitting and splicing printing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878876A (en) * | 2021-09-15 | 2022-01-04 | 中国第一汽车股份有限公司 | 3D printing structure of large-size automotive interior part and 3D printing manufacturing method thereof |
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Application publication date: 20201218 |
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