CN108327251A - A kind of FDM Method of printings of subregion filling printing - Google Patents

A kind of FDM Method of printings of subregion filling printing Download PDF

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Publication number
CN108327251A
CN108327251A CN201810093215.0A CN201810093215A CN108327251A CN 108327251 A CN108327251 A CN 108327251A CN 201810093215 A CN201810093215 A CN 201810093215A CN 108327251 A CN108327251 A CN 108327251A
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CN
China
Prior art keywords
support
epidermis
area
printings
product
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.)
Pending
Application number
CN201810093215.0A
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Chinese (zh)
Inventor
杜银学
虎成
周子翔
杜海平
马永军
高灵宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kocel Intelligent Foundry Industry Innovation Center Co Ltd
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Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Kocel Intelligent Foundry Industry Innovation Center Co Ltd filed Critical Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Priority to CN201810093215.0A priority Critical patent/CN108327251A/en
Publication of CN108327251A publication Critical patent/CN108327251A/en
Pending legal-status Critical Current

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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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • 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
    • 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
    • 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

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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 FDM Method of printings of subregion filling printing in increases material manufacturing technology field, include the following steps：Three-dimensional modeling product model to be printed carries out FDM printings to filling printing technology by entity according to the corresponding each slicing layer of product structure product epidermis after threedimensional model progress slicing delamination, slice, the print area of each single layer of slices in addition to epidermis is divided into epidermis area, transition region and Support, and the transition region is the transition region in epidermis area and Support；The fill process of epidermis area, transition region and Support is respectively set, last FDM printers successively identify each print area of each slicing layer and carry out the FDM printings of product by the filling printing technology in each region.The Method of printing of the present invention, it will be except each slicing layer subregion of epidermis, and different filling printing technology is separately designed to the different quality and functional requirement in each region according to product, to realize that subregion is filled, print area is filled with optimization, while ensureing product quality, cost is reduced, improves efficiency.

Description

A kind of FDM Method of printings of subregion filling printing
Technical field
The present invention relates to increases material manufacturing technology field, more particularly to a kind of FDM filling printings suitable for large product Technique.
Background technology
Fusion sediment increases material manufacturing technology has been achieved for prodigious achievement in current industrial manufacture view.FDM is molded Technology relies primarily on the structure of the mobile realization three-dimensional stereo model of print head and print platform.In entire fused glass pellet mistake Cheng Zhong, wire rod play vital role, and FDM equipment squeezes out material in semi-fluid condition, and material instantaneously coagulates Gu at contoured thin layer, layer upon layer forms entire 3 d part.The advantage is that dimensional accuracy is stablized, service life is long, Fabrication cycle is short, gradually starts to apply in casting industry at present.
When FDM technology prints different fill process products at present, used method is the outline portion of first printed product, Then the inside filling region between printed product profile, and each internal filling region uses identical padding scheme.But just For actual product, according to product quality and functional requirement, different zones need to use different padding schemes, such as outline portion High intensity and high dense degree are needed, to meet the hardness and surface quality requirements of product；For another example product processing performance demand is different Region need use different raw material etc..The above same fill process then cannot be satisfied the demand of such product.
Invention content
The deficiency of filling region printing technology when the present invention is printed for FDM in the prior art provides a kind of subregion and fills out The FDM Method of printings for filling printing, to carry out subregion by not to the inside of FDM printed products according to product structure and quality requirement Same path is filled printing, improves printing effect, ensures to improve stock utilization while product quality requires.
The object of the present invention is achieved like this, a kind of FDM Method of printings of subregion filling printing, including walks as follows Suddenly：Three-dimensional modeling product model to be printed, slicing delamination is carried out to threedimensional model, after slice according to product structure, product The corresponding each slicing layer of epidermis carries out FDM printings by entity filling printing technology, and each single layer of slices in addition to epidermis is beaten Print region is divided into epidermis area, transition region and Support, and the transition region is the transition region in epidermis area and Support；It sets respectively The fill process of epidermis area, transition region and Support is set, last FDM printers successively identify each print area of each slicing layer And the FDM printings of product are carried out by the filling printing technology in each region.
The FDM Method of printings of the present invention, will divide epidermis area, transition region and Support, and root except each slicing layer of epidermis Different filling printing technology is separately designed to the different quality and functional requirement in each region according to product, to realize subregion Filling can be arranged accurate careful filling for the higher print zone of quality requirement and print work to optimize filling print area Interior zone can be arranged simple and quick fill process scheme in skill, while ensureing product quality, reduce cost, carry High efficiency.
To ensure the quality requirement in each region of product, the fill process in the epidermis area is entity fill process, the branch Support area is grid type fill process, and the transition region is from surface district to Support or from Support to epidermis area line footpath and line spacing The successively Gradually varied fill print zone of increasing or decreasing.
To ensure the quality requirement of epidermis, epidermis area filling printing technology be print head along epidermis area profile into The physical print of line reciprocation cycle.
Further, the discharging line footpath of print head is less than or equal to 1mm when the epidermis area printing, and adjacent line footpath spacing is small In or equal to 0.1mm.
To ensure that interiors of products supports the functional requirement of inner region, mesh parameter and print head the discharging parameter of the Support For：When the solid volume of product is less than 1 three-dimensional meter, the filling network of Support is：Grid spacing is 10~20 mm, Print head discharges line footpath as 1~2 mm；When the solid volume of product is 1~2 three-dimensional meter, the network of Support is：Net Compartment is 2~3 mm away from the discharging line footpath for 20~25 mm, print head；When entity products volume is more than 2 three-dimensional meters, grid Spacing is 25~30 mm, and the discharging line footpath of print head is 3~4mm.The corresponding Support of each slicing layer forms the branch of interiors of products Center is supportted, as long as ensureing enough support strengths without consistency requirements, so using the technique of grid type filling printing, not only Printing effect is improved, and reduces printing materials, to realize the purpose of cost efficiency.
Further, so track route of the print head when same slicing layer prints is parallel past when support prints Support Strike-on prints, and line footpath spacing is equal, and the print path of contiguous slices layer is vertical or at a certain angle staggeredly so that contiguous slices layer Print path is staggered to form network.
To optimize the filling printing technology of transition region, the fill process of the transition region is：From surface district to Support side To when transition, Internal periphery of the print head along epidermis area, which is successively recycled to Support, to be printed, the discharging line footpath of the print head of each layer from The discharging line footpath equivalence of epidermis area physical print is incremented to the discharging line footpath of Support filling printing, the spacing etc. of each adjacent line footpath Value is incremented by.
For ease of realizing that the printing of different discharging bores is respectively adopted in subregion printing technology, the epidermis area and Support Head printed, for transition region print head be equipped with it is multiple, different print heads corresponds to different discharging line footpaths, different zones Print head in point different melted material of connection.
Description of the drawings
Fig. 1 is that the single layer for the embodiment that the FDM Method of printings of subregion using the present invention filling printing are printed is cut Piece subregion schematic diagram.
Specific implementation mode
It it is about 1 cube with a solid volume below in conjunction with the accompanying drawings in the specific embodiment method that the present invention will be described in detail The product of rice is with example, is XOY plane by the corresponding coordinate plane of single layer of slices, and the direction vertical with XOY plane is Z axis side To by product along Z-direction progress slicing delamination after three-dimensional modeling, according to the intensity requirement and requirement of product, along Z axis side If if to top layer dried layer and epidermis that undermost dried layer is product, need to be beaten by fine and close physical print technique It prints, what the subregion filling that emphasis carries out in the Method of printing that slicing layer is the present invention of suffering between upper and lower surface layer printed Slicing layer, one of them slicing layer as shown in Figure 1, the print area of each single layer of slices in addition to epidermis be divided into epidermis area 1, Transition region 2 and Support 3, transition region are the transition region in epidermis area and Support；Epidermis area, transition are respectively set after subregion The fill process in area and Support, last FDM printers successively identify each print area of each slicing layer and by each regions Fill the FDM printings that printing technology carries out product.
To ensure the quality requirement in each region of product, the fill process in epidermis area 1 is entity fill process, entity filling Technique is identical as the fill process of product epidermis；When carrying out the filling printing in epidermis area, print head along epidermis area profile from The physical print of linear reciprocation cycle is carried out outside to inside, and the discharging line footpath of print head is 0.8mm, phase when specific epidermis area prints Adjacent line diameter is smaller than or is equal to 0.1mm.The thickness in epidermis area mainly according to the intensity of product, material property and specifically determine.
Support is located at the central area of slicing layer, and using grid type fill process, the transition region is from surface district to support Area is printed from Support to discharging line footpath when the filling printing of epidermis area and line spacing for the Gradually varied fill of successively increasing or decreasing Area.For ensure interiors of products support inner region functional requirement, Support mesh parameter and print head discharging parameter be：Between grid It is 2mm away from the discharging line footpath for 20 mm, print head；Walking road of the print head when same slicing layer prints when printing Support The parallel reciprocal printing of line, equal line footpath spacing is 20mm, and the print path of contiguous slices layer is vertical or is interleaved at a certain angle The print path of contiguous slices layer is set to be staggered to form network.
The fill process of transition region is：When print head carries out transition from surface district to Support direction, print head is along table The Internal periphery in dermatotome is successively recycled to Support and is printed, and the line footpath of the first profile floor is identical as the printing line footpath in epidermis area to be 0.8mm, the spacing with rim surface zona are to be incremented by by every layer of 0.8mm, and line footpath is incremented by by every layer of 0.2mm, i.e. second layer line footpath 1mm, the Each layer line diameter after three is followed successively by 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, line spacing distinguish successively this 1.6mm, 2.4mm, 3.2mm, 4.0mm, 4. 8 mm, and filtering area fill to one layer nearest with Support just with the net of fill area Lattice edge connects.
For ease of realizing above-mentioned subregional printing technology, the print head of the FDM printers for above-mentioned fill process, table Dermatotome and Support be respectively adopted it is different discharging bores print heads printed, for transition region print head be equipped with it is multiple, Different print heads corresponds to different discharging line footpaths, the melted material for dividing connection different in the print head of different zones, to full The requirement of sufficient interiors of products difference print area.The FDM Method of printings of the present invention, will be divided into epidermis except each slicing layer of epidermis Area 1, transition region 2 and Support 3, and different fill out is separately designed to the different quality and functional requirement in each region according to product Printing technology is filled, it, can be with for the higher print zone of quality requirement to optimize filling print area to realize that subregion is filled Accurate careful filling printing technology is set, interior zone can be arranged simple and quick fill process scheme, ensures production While quality, cost is reduced, improves efficiency.

Claims (8)

1. a kind of FDM Method of printings of subregion filling printing, which is characterized in that include the following steps：Three-dimensional modeling is to be printed Product model, slicing delamination is carried out to threedimensional model, after slice according to the corresponding each slicing layer of product structure product epidermis FDM printings are carried out by entity filling printing technology, the print area of each single layer of slices in addition to epidermis is divided into epidermis area, transition Area and Support, the transition region are the transition region in epidermis area and Support；Epidermis area, transition region and support is respectively set The fill process in area, last FDM printers successively identify each print area of each slicing layer and are printed by the filling in each region Technique carries out the FDM printings of product.
2. the FDM Method of printings of filling printing in subregion according to claim 1, which is characterized in that the epidermis area Fill process is entity fill process, and the Support is grid type fill process, and the transition region is from surface district to Support Or from Support to the Gradually varied fill print zone of epidermis area line footpath and line spacing successively increasing or decreasing.
3. the FDM Method of printings of filling printing in subregion according to claim 2, which is characterized in that the epidermis area is filled out It is the physical print that print head carries out linear reciprocation cycle along the profile in epidermis area to fill printing technology.
4. the FDM Method of printings of filling printing in subregion according to claim 3, which is characterized in that the epidermis area is beaten The discharging line footpath of print head is less than or equal to 1mm when print, and adjacent line footpath is smaller than or is equal to 0.1mm.
5. the FDM Method of printings of filling printing in subregion according to claim 2, which is characterized in that the Support Mesh parameter and print head discharging parameter are：When the solid volume of product is less than 1 three-dimensional meter, the filling network of Support For：Grid spacing is 10~20 mm, and print head discharges line footpath as 1~2 mm；When the solid volume of product is 1~2 three-dimensional rice When, the network of Support is：Grid spacing is 20~25 mm, and the discharging line footpath of print head is 2~3 mm；When entity produces When product volume is more than 2 three-dimensional meters, grid spacing is 25~30 mm, and the discharging line footpath of print head is 3~4mm.
6. the FDM Method of printings of filling printing in subregion according to claim 5, which is characterized in that when printing Support The parallel reciprocal printing of track route of the print head when same slicing layer prints, line footpath spacing is equal, the printing of contiguous slices layer Route is vertical or at a certain angle staggeredly so that the print path of contiguous slices layer is staggered to form network.
7. the FDM Method of printings of filling printing in subregion according to claim 5, which is characterized in that the transition region Fill process is：From epidermis area to when the transition of Support direction, print head is successively recycled to Support along the Internal periphery of surface district The discharging line footpath of printing, the print head of each floor is incremented to Support filling printing from the discharging line footpath equivalence of epidermis area physical print Discharging line footpath, the spacing equivalence of each adjacent line footpath is incremented by.
8. the FDM Method of printings of subregion according to claim 2 filling printing, which is characterized in that the epidermis area and Support be respectively adopted it is different discharging bores print heads printed, for transition region print head be equipped with it is multiple, it is different Print head corresponds to different discharging line footpaths, the melted material for dividing connection different in the print head of different zones.
CN201810093215.0A 2018-01-31 2018-01-31 A kind of FDM Method of printings of subregion filling printing Pending CN108327251A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590876A (en) * 2020-04-22 2020-08-28 赵越 Three-dimensional printing method
CN112238614A (en) * 2019-07-19 2021-01-19 精工爱普生株式会社 Method for manufacturing three-dimensional object and three-dimensional molding device
CN112371994A (en) * 2020-10-22 2021-02-19 苏州复浩三维科技有限公司 Printing method of workpiece support, support structure and workpiece with support
CN113649591A (en) * 2021-06-28 2021-11-16 华中科技大学鄂州工业技术研究院 3D printing method for metal/ceramic powder sintering partition
CN113910596A (en) * 2021-11-19 2022-01-11 南京贝生科技有限公司 3D cushion printing method and system
CN114368148A (en) * 2020-10-15 2022-04-19 三纬国际立体列印科技股份有限公司 Multi-density inner filling layer cutting and printing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105073390A (en) * 2013-02-26 2015-11-18 阿博格有限公司 Method for producing a three-dimensional object by means of generative construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105073390A (en) * 2013-02-26 2015-11-18 阿博格有限公司 Method for producing a three-dimensional object by means of generative construction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112238614A (en) * 2019-07-19 2021-01-19 精工爱普生株式会社 Method for manufacturing three-dimensional object and three-dimensional molding device
US11679562B2 (en) 2019-07-19 2023-06-20 Seiko Epson Corporation Method for manufacturing three-dimensional shaped object and three-dimensional shaping device
CN111590876A (en) * 2020-04-22 2020-08-28 赵越 Three-dimensional printing method
CN114368148A (en) * 2020-10-15 2022-04-19 三纬国际立体列印科技股份有限公司 Multi-density inner filling layer cutting and printing method
CN112371994A (en) * 2020-10-22 2021-02-19 苏州复浩三维科技有限公司 Printing method of workpiece support, support structure and workpiece with support
CN113649591A (en) * 2021-06-28 2021-11-16 华中科技大学鄂州工业技术研究院 3D printing method for metal/ceramic powder sintering partition
CN113910596A (en) * 2021-11-19 2022-01-11 南京贝生科技有限公司 3D cushion printing method and system

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