CN110370615A - The production method of the even truss structure of 3D printing hollow eight - Google Patents
The production method of the even truss structure of 3D printing hollow eight Download PDFInfo
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- CN110370615A CN110370615A CN201910660788.1A CN201910660788A CN110370615A CN 110370615 A CN110370615 A CN 110370615A CN 201910660788 A CN201910660788 A CN 201910660788A CN 110370615 A CN110370615 A CN 110370615A
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- China
- Prior art keywords
- truss structure
- hollow
- even truss
- entity
- bar member
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
-
- 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
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to a kind of production methods of the even truss structure of 3D printing hollow eight, it the steps include: 1) to design hollow eight even truss structure models, the entity cubic block that design size is 7mm is drawn using mapping software, cubic block is removed again, is converted, obtain the even truss structure model of solid bar member eight of design size, entity conversion shell processing is carried out to the rod piece of the even truss structure model of solid bar member eight, respectively obtains the hollow eight even truss structures that side length is 14mm, 21mm；2) relative density and porosity of hollow eight even truss structure models are calculated；3) the even truss structure of 3D printing hollow eight.The truss structure can use 3D printing increases material manufacturing technology entirety printing shaping, give full play to the advantage of 3D printing technique and the performance of structure.The hollow truss structure own wt is lighter, stress is more reasonable；Manufacturing process high degree of automation, not needing any template can be completed, simple and fast.
Description
Technical field
The present invention relates to truss structure used in a kind of aerospace, automobile, bridge, especially a kind of hollow eight even truss
The production method of structure.
Background technique
Porous structure is widely used in the fields such as aerospace and auto manufacturing, and application is relatively more extensive as eight is even
Truss structure.Eight even truss structures mainly carry various function load in article, are the cores of various article supports,
It is also the important component of various articles, very important effect is played to the load resistant power of article.At present, most of
The rod piece of eight even truss structures mainly uses solid construction, and solid construction has own wt big, and material requested is more, assembly technology
The disadvantages of complexity, execute-in-place difficulty is big.And if eight even truss structure rod pieces are fabricated to hollow rod, knot can not only be mitigated
Structure weight, reduces cost, additionally it is possible to realize lightweight.In addition, the croop property of hollow rod is significantly better than solid bar member, structure
Young's modulus increase, be able to bear more load.With the development of 3D printing technique, the even truss structure of complicated hollow eight
Production also become relatively easily, and can be realized the integral manufacturing of structure, avoid assembling process, it is convenient and efficient, be
The application of the even truss structure of sky eight provides possibility.
It is more and more to be referred to every field due to lightweight concept, wherein the eight even more hollow structure applications of truss are very
Extensively, the eight of application even truss structures are mostly generally solid bar member, although realizing a part of lightweight, porosity is not
Greatly, when and being acted on by load, deformability is not very strong.Porosity in order to further increase, while can further increase
The deformability of structure needs a kind of hollow eight even truss structures using 3D printing.
Summary of the invention
The production method that the present invention is to provide for a kind of even truss structure of 3D printing hollow eight, by the portion of eight even truss structures
Divide solid bar member to replace with hollow rod, improve porosity and significantly increase creep ability, and lightweight is furthermore achieved；It answers
With 3D printing technique, the production of hollow eight even truss structures is made to become more convenient.
The technical solution of the present invention is as follows: a kind of production method of the even truss structure of 3D printing hollow eight, specifically includes as follows
Step:
1) hollow eight even truss structure models are designed
The rod piece diameter for determining hollow eight even truss structures is 1.2mm~1.8mm, and hollow rods wall thickness is 0.15mm, is made
The entity cubic block that design size is 7mm is drawn with mapping software, then cubic block is removed, is converted, obtains design size
The even truss structure model of solid bar member eight, the rod piece of the even truss structure model of solid bar member eight is carried out at entity conversion shell
Reason respectively obtains the hollow eight even truss structures that side length is 14mm, 21mm；
2) relative density and porosity of hollow eight even truss structure models are calculated；
3) the even truss structure of 3D printing hollow eight
According to hollow eight even truss structure models of design, use 3D printing method production side length in 14mm, 21mm
The even truss structure of sky eight.
Further, the rod piece to the even truss structure model of solid bar member eight, which carries out entity conversion shell processing, has four
Kind method:
The first, keeps entity for the rod piece in cube dignity for being in the even truss structure model of solid bar member eight, other
Entity rod piece is converted to shell rod piece, it is ensured that hollow eight even truss structures bear more load, while can realize again into
One step lightweight；
Second, turn from the entity rod piece on three faces on the same vertex of the even truss structure model of solid bar member eight
Shell is turned to, the other three face keeps entity state；
The third retains the solid bar member on one face of the even truss structure model of solid bar member eight, and other rod pieces carry out real
Body converts shell operation；
4th kind, the rod piece to the even truss structure model of solid bar member eight carries out entity and converts shell processing method
In, shell is converted by all entity rod pieces of the even truss structure model of solid bar member eight.
Further, hollow the eight of the 21mm even truss structure cube models using first to the third entity by converting
The hollow truss structure of shell processing method is arranged in a combination, and guarantees on hollow eight even truss structure cube model faces
Rod piece is solid bar member, and other rod pieces are hollow rods.
The beneficial effects of the present invention are:
Compared with existing eight even truss structures, the present invention proposes a kind of eight even truss structures containing hollow rods, the knot
The features such as structure has porosity big, and creep ability is strong, light weight, significantly saves material, passes through 3D printing increases material manufacturing technology
Realize hollow eight even truss structure moldings, this technology has convenient and efficient, precision height, the features such as can freely customizing.
Detailed description of the invention
Fig. 1 is having a size of the even truss structure cube schematic diagram of 7mm hollow eight；
Fig. 2 is having a size of the even truss structure cube schematic diagram of 14mm hollow eight；
Fig. 3 is having a size of the even truss structure cube schematic diagram of 21mm hollow eight；
Fig. 4 is hollow eight even truss structure cube sectional views.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
As shown in Figures 1 to 4, the present invention hollow eight even truss structures to be made, comprising: a plurality of hollow rods,
And a plurality of solid band holes rod piece, the hollow truss structure rod piece diameter is different, the hollow truss structure unit cell quantity
Difference, the hollow truss structure moulded dimension are of different sizes.The truss structure can be whole using 3D printing increases material manufacturing technology
Body printing shaping gives full play to the advantage of 3D printing technique and the performance of structure.The hollow truss structure own wt is more
Gently, stress is more reasonable；Manufacturing process high degree of automation, not needing any template can be completed, simple and fast.
The production method of the even truss structure of 3D printing of the invention hollow eight, specifically comprises the following steps:
1) hollow eight even truss structure models are designed
The rod piece diameter for determining hollow eight even truss structures is 1.2mm~1.8mm, and hollow rods wall thickness is 0.15mm, is made
The entity cubic block that design size is 7mm is drawn with mapping software, then cubic block is removed, is converted, obtains design size
The even truss structure model of solid bar member eight, the rod piece of the even truss structure model of solid bar member eight is carried out at entity conversion shell
Reason respectively obtains the hollow eight even truss structures that side length is 14mm, 21mm；
2) relative density and porosity of hollow eight even truss structure models are calculated；
3) the even truss structure of 3D printing hollow eight
According to hollow eight even truss structure models of design, use 3D printing method production side length in 14mm, 21mm
The even truss structure of sky eight.
Embodiment:
The various sizes of hollow eight even truss cubic structure models that the present invention makes.The even truss structure mould of Fig. 1 hollow eight
Type manufacturing process is as follows: first drawing design size using mapping software and is the entity cubic block of 7mm, then moves to cubic block
Remove, convert, obtain the even truss structure of solid bar member eight of design size, to the rod piece of the even truss structure model of solid bar member eight into
Row entity converts shell processing, and wall thickness is set as 0.15mm.In the above operation, and not all entity rod piece is converted to shell
Body, the rod piece being in cube dignity keep entity, can guarantee that model is able to bear more load in this way, while realizing again
Further lightweight.
Similarly, hollow eight even truss structure shown in Fig. 2, first draws the entity that design size is 7mm using mapping software
Cubic block, then cubic block is removed, is converted, the even truss structure of solid bar member eight of design size is obtained, to solid bar member
The rod piece of eight even truss structure models carries out entity conversion shell processing, and wall thickness is set as 0.15mm.In the above operation, not institute
Some entity rod pieces are converted to shell, some will retain entity state with the rod piece on face, go out from the same vertex
Three faces of hair, the entity rod piece on face are converted into shell, and the other three face keeps entity state.Again to treated eight even purlins
Frame structure is replicated, is superimposed, and the even truss cubic structure of new hollow eight is obtained, and new construction side length is 14mm, and work includes 8 lists
Born of the same parents, the rod piece on each face guarantee to be entity state.
Similarly, hollow eight even truss structure shown in Fig. 3, first draws the entity that design size is 7mm using mapping software
Cubic block, then cubic block is removed, is converted, the even truss structure of solid bar member eight of design size is obtained, to solid bar member
The rod piece of eight even truss structure models carries out entity conversion shell processing, and wall thickness is set as 0.15mm.The above processing obtains three kinds
The hollow truss structure of type: the first processing mode is identical to solid truss structure processing mode as Fig. 2；Second of processing side
Formula is the solid bar member retained on a face, other rod pieces carry out entity conversion shell operation；The third processing mode is then
Shell is converted by all entity rod pieces.The hollow truss structure of obtained three types is carried out certain sequence certain amount
Arrangement, the rod piece on guarantee face is solid bar member, other rod pieces are hollow rods, obtains the hollow eight even purlins that side length is 21mm
Frame structure cubic model.
Claims (3)
1. a kind of production method of the even truss structure of 3D printing hollow eight, which is characterized in that specifically comprise the following steps:
1) hollow eight even truss structure models are designed
The rod piece diameter for determining hollow eight even truss structures is 1.2mm~1.8mm, and hollow rods wall thickness is 0.15mm, uses work
Figure software draws design size and is the entity cubic block of 7mm, then is removed, converted to cubic block, and the reality of design size is obtained
The even truss structure model of core bar part eight carries out entity conversion shell processing to the rod piece of the even truss structure model of solid bar member eight,
Respectively obtain the hollow eight even truss structures that side length is 14mm, 21mm；
2) relative density and porosity of hollow eight even truss structure models are calculated；
3) the even truss structure of 3D printing hollow eight
According to hollow eight even truss structure models of design, use 3D printing method production side length for hollow the eight of 14mm, 21mm
Even truss structure.
2. the production method of the even truss structure of 3D printing hollow eight according to claim 1, it is characterised in that: described to reality
The rod piece of the even truss structure model of core bar part eight carries out entity conversion shell processing tool, and there are four types of methods:
The first, keeps entity, other entities for the rod piece in cube dignity for being in the even truss structure model of solid bar member eight
Rod piece is converted to shell rod piece, it is ensured that hollow eight even truss structures bear more load, while can realize again further
Lightweight；
It second, is converted into from the entity rod piece on three faces on the same vertex of the even truss structure model of solid bar member eight
Shell, the other three face keep entity state；
The third, retains the solid bar member on one face of the even truss structure model of solid bar member eight, and other rod pieces carry out entity and turn
Change shell operation；
4th kind, the rod piece to the even truss structure model of solid bar member eight carries out in entity conversion shell processing method, will
All entity rod pieces of the even truss structure model of solid bar member eight are converted into shell.
3. the production method of the even truss structure of 3D printing hollow eight according to claim 2, it is characterised in that: the 21mm
Hollow eight even truss structure cube models by the hollow truss using first to the third entity conversion shell processing method
Structural arrangement is composed, and guarantees that the rod piece on hollow eight even truss structure cube model faces is solid bar member, other bars
Part is hollow rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660788.1A CN110370615A (en) | 2019-07-22 | 2019-07-22 | The production method of the even truss structure of 3D printing hollow eight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660788.1A CN110370615A (en) | 2019-07-22 | 2019-07-22 | The production method of the even truss structure of 3D printing hollow eight |
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| CN110370615A true CN110370615A (en) | 2019-10-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303774A (en) * | 2008-06-12 | 2008-11-12 | 大连工业大学 | Method for generating quadrangle finite element grid based on three-dimensional solid model |
| CN201502136U (en) * | 2009-09-01 | 2010-06-09 | 贵州大学 | Integrated plate truss structure |
| CN203247920U (en) * | 2013-03-15 | 2013-10-23 | 姚幸海 | Frame structure used for 220kV or 500kV or 1000kV transformer station |
| CN104376155A (en) * | 2014-10-31 | 2015-02-25 | 湖南萌境智能三维技术有限公司 | Micro truss structure design platform and method |
| CN207419691U (en) * | 2018-01-30 | 2018-05-29 | 汪子尧 | For resisting the truss structure of load |
-
2019
- 2019-07-22 CN CN201910660788.1A patent/CN110370615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303774A (en) * | 2008-06-12 | 2008-11-12 | 大连工业大学 | Method for generating quadrangle finite element grid based on three-dimensional solid model |
| CN201502136U (en) * | 2009-09-01 | 2010-06-09 | 贵州大学 | Integrated plate truss structure |
| CN203247920U (en) * | 2013-03-15 | 2013-10-23 | 姚幸海 | Frame structure used for 220kV or 500kV or 1000kV transformer station |
| CN104376155A (en) * | 2014-10-31 | 2015-02-25 | 湖南萌境智能三维技术有限公司 | Micro truss structure design platform and method |
| CN207419691U (en) * | 2018-01-30 | 2018-05-29 | 汪子尧 | For resisting the truss structure of load |
Non-Patent Citations (1)
| Title |
|---|
| 葛清源: "面向3D 打印的飞机设备安装支架结构设计优化", 《ALTAIR 2019 技术大会论文集》 * |
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Application publication date: 20191025 |
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