CN114986872A - Multi-degree-of-freedom additive manufacturing printing method for helmet - Google Patents

Multi-degree-of-freedom additive manufacturing printing method for helmet Download PDF

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Publication number
CN114986872A
CN114986872A CN202210684578.8A CN202210684578A CN114986872A CN 114986872 A CN114986872 A CN 114986872A CN 202210684578 A CN202210684578 A CN 202210684578A CN 114986872 A CN114986872 A CN 114986872A
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helmet
printing
layer
filling
target
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CN202210684578.8A
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CN114986872B (en
Inventor
单忠德
郑菁桦
宋亚星
范聪泽
宋文哲
李�荣
张鑫磊
张蕾
沙乾坤
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Shandong Zhongkang Guochuang Advanced Printing And Dyeing Technology Research Institute Co ltd
Nanjing University of Aeronautics and Astronautics
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Shandong Zhongkang Guochuang Advanced Printing And Dyeing Technology Research Institute Co ltd
Nanjing University of Aeronautics and Astronautics
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Priority to CN202210684578.8A priority Critical patent/CN114986872B/en
Priority to PCT/CN2022/107548 priority patent/WO2023240747A1/en
Publication of CN114986872A publication Critical patent/CN114986872A/en
Application granted granted Critical
Publication of CN114986872B publication Critical patent/CN114986872B/en
Priority to NL2034928A priority patent/NL2034928B1/en
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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
    • 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
    • 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
    • B29C64/379—Handling of additively manufactured objects, e.g. using robots
    • 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
    • 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
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/10—Additive manufacturing, e.g. 3D printing
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Robotics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

The invention provides a multi-degree-of-freedom additive manufacturing printing method for a helmet, which comprises the steps of firstly printing a helmet supporting mold by adopting water-soluble resin based on the inner surface of a target helmet; carrying out equidistant offset layering on the curved surface of the target helmet model according to the thickness of the characteristic layer from the inner surface to the outer surface; based on the integrity of the curved surface layer, the substrate and the bulge are taken as segmentation targets, and the segmentation is performed by traversing from inside to outside region by region to store slice information; performing configuration treatment of the inner reduced wall thickness on all the protrusion areas after traversing and dividing; based on the filling parameter setting, obtaining filling information of each layer of the curved surface of the target workpiece series; the printing device with multiple degrees of freedom is arranged on the supporting die along the path, and layer-by-layer filling is carried out to finish target helmet printing; and finally, putting the helmet and the supporting mold into a water tank together, and dissolving the mold to obtain the final target helmet part. The method provides a new method for realizing the additive manufacturing of the helmet part with the complex curved surface structure.

Description

Multi-degree-of-freedom additive manufacturing printing method for helmet
Technical Field
The invention belongs to the technical field of advanced manufacturing, and particularly relates to a multi-degree-of-freedom additive manufacturing printing method for a helmet.
Background
The common forming process of the helmet mainly comprises hand lay-up die forming, three-dimensional weaving forming and winding forming. The hand lay-up die pressing forming is a typical process for producing helmets, and the forming is restricted by metal dies, has single type and is not easy to replace; three-dimensional weaving forming mainly faces military bulletproof helmets, and improves continuity of fabrics compared with hand lay-up forming by weaving a penetration binding angle interlocking fabric; the winding process is divided into three winding processes of dry method, wet method and semi-dry method, mainly the prepreg is accurately wound on a rotating mold core at high speed according to a preset path under the control of tension, and demolding is carried out after curing, but the method is not suitable for manufacturing a part with a concave surface, and the shape of a formed helmet is limited. The fixed mold thus constrains the shape of the helmet and, in combination with performance requirements, limits its formation.
As a structure with a complex curved surface, the helmet is a new mainstream forming idea in additive manufacturing. The method comprises the steps of slicing a target helmet part model in a curved surface layering manner, obtaining an overall curved surface filling path of the helmet according to filling setting of each layer, introducing a multi-degree-of-freedom mechanical arm, and freely printing and filling high-performance fiber reinforced thermoplastic resin based pre-impregnated composite wire material according to the path, so that high-performance forming of the complex curved surface helmet can be realized.
Disclosure of Invention
In order to solve the problems, the invention discloses a multi-degree-of-freedom additive manufacturing printing method for a helmet, which is based on a complex curved surface layering method and aims to improve multidirectional constraints of the traditional helmet forming process on the shape and performance of the helmet and finally realize high-quality complex curved surface forming.
A multi-degree-of-freedom additive manufacturing printing method for a helmet comprises the following steps:
step 1: extracting shape features of the target helmet model, including feature information of inner and outer surfaces, sidelines and points;
step 2: setting a characteristic layer thickness t0 and a wall thickness coefficient k, selecting the inner surface of the helmet model, calling a numerical control program, carrying out equidistant offset layering on a target workpiece from the inner surface to the outer surface by a value t0 to obtain a series of curved surface layer sets, and recording information of each layer in the thickness direction of the model;
and 3, step 3: according to the integrality of each curved surface layer, based on the division principle of 'a substrate layer + a protrusion layer', roughly dividing the model, traversing the protrusion part, further refining and dividing the protrusion part, and finally realizing the area division of the whole model;
and 4, step 4: filling and configuring the protrusion layer, and obtaining protrusion filling thickness and slice information of each area, wherein the inner reduction wall thickness T is k T0;
and 5: selecting an outer surface, calling a numerical control program, and generating model wall thickness curved surface offset layered slicing information by combining a wall thickness value;
step 6: setting the diameter of a nozzle, a filling angle, a filling interval and selecting a filling mode;
and 7: and (4) selecting a model bottom side line, clicking a selection starting point, setting a model substrate filling starting point, and planning a path layer by layer according to the parameter setting in the step 6 according to a filling principle of 'substrate layer sequential filling → protrusion layer sequential filling → outer wall sequential filling' until the whole printing path information of the target helmet is obtained.
And 8: and the multi-degree-of-freedom printing equipment performs layer-by-layer filling printing on the target helmet supporting mould according to the printing path information until the target helmet printing is completed.
Furthermore, according to the inner surface of the target helmet part model, a supporting mold needs to be designed, a soluble resin material is selected, the helmet supporting mold is printed and prepared on the basis of the FDM process, and the material can be water-soluble resin 3D printing consumables such as PVA, eSoluble, AquaSys 120 and the like;
furthermore, the target helmet printing material is a common thermoplastic plastic wire material, which can be PLA, ABS, nylon and other materials, or a fiber reinforced resin matrix prepreg composite wire material taking the common thermoplastic plastic wire material as a matrix, which can be a short/continuous carbon fiber reinforced composite wire material and a short/continuous glass fiber reinforced composite wire material;
further, the helmet support mold has two forming modes: the method is realized by assembling double printing heads through multi-degree-of-freedom printing equipment, wherein one printing head is used for conventionally printing a supporting mould, and the other printing head is used for printing a helmet main body on a curved surface; secondly, after printing is finished by the single FDM printing equipment, the printing equipment is arranged on a printing table of the multi-degree-of-freedom printing equipment;
furthermore, the printing equipment is a 6-axis mechanical arm printer, and the position and the posture state of a printing head of the printing equipment always meet the condition that the central line of a nozzle is vertical to the path direction;
furthermore, each layer of filling path parameters can be independently set according to the information of each curved surface layer obtained after the curved surface of the target helmet model is sliced, so that materials of each layer are arranged in a staggered mode, and the effect of weaving reinforcement is achieved;
further, after the target helmet is printed, the target helmet and the internal helmet mold are taken down from the printing table support, and the target helmet and the internal helmet mold are placed in a normal-temperature water tank until the support mold is dissolved, so that the final target helmet part is obtained.
Further, the filling mode is that each layer is individually set to be one of straight filling, zigzag filling or zigzag filling.
The invention has the beneficial effects that:
1. the printing method provided by the invention is based on a multi-degree-of-freedom additive manufacturing method for a helmet aiming at a complex curved surface structural part; firstly, printing a helmet supporting mold by adopting water-soluble resin based on the inner surface of a target helmet; then, carrying out equidistant offset layering on the curved surface of the target helmet model according to the thickness of the characteristic layer from the inner surface to the outer surface; based on the integrity of the curved surface layer, the substrate and the bulge are taken as segmentation targets, and the segmentation is performed by traversing from inside to outside region by region to store slice information;
2. performing configuration treatment of the inner reduced wall thickness on all the protrusion areas after traversing and dividing; based on the filling parameter setting, obtaining filling information of each layer of the curved surface of the target workpiece series; the printing device with multiple degrees of freedom is arranged on the supporting die along the path, and layer-by-layer filling is carried out to finish target helmet printing; and finally, putting the helmet and the supporting mold into a water tank together, and dissolving the mold to obtain the final target helmet part.
3. The method provides a new method for realizing the additive manufacturing of the helmet part with the complex curved surface structure.
Drawings
Fig. 1 is a schematic view of a target helmet, a support mold, and a printing station of the present invention.
FIG. 2 is a schematic diagram of the equidistant offset layering steps of the present invention.
FIG. 3 is a schematic diagram of a step of dividing a traversal region according to the present invention.
FIG. 4 is a schematic view of the steps of the protrusion filling configuration of the present invention.
FIG. 5 is a schematic diagram of the process of partitioned printing (wherein, the substrate is filled sequentially, the protrusion is filled sequentially, and the outer wall is filled sequentially).
Reference numerals
Wherein 1 — a target headgear article; 2-helmet support mould; 3-printing platform base.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The multi-degree-of-freedom additive manufacturing printing method for the helmet comprises the following steps of:
1) determining a target helmet model, wherein the thickness of the target helmet model is 4.8mm, extracting the shape characteristics of the target helmet model, including the characteristic information of an inner surface, an outer surface, a side line and a point, establishing a helmet support mold model according to the inner surface of the helmet model, printing a water-soluble support mold by adopting an eSoluble material, and installing the water-soluble support mold on a 6-axis printing platform base;
2) setting the thickness of a characteristic layer to be 0.6mm and the wall thickness coefficient to be 3, selecting the inner surface of a helmet model, carrying out path editing processing based on an NX software NC module, realizing equidistant offset layering of a target workpiece from the inner surface to the outer surface by 0.6mm, obtaining a series of curved surface layer sets (total 8 layers), and recording information of each layer in the thickness direction of the model;
3) according to the integrity of each curved surface layer, based on a 'basal layer + protruding layer' segmentation principle, roughly segmenting the model, traversing the protruding part, further refining and segmenting the protruding part, and finally realizing the segmentation of the whole model area to obtain a set of each basal layer area and each protruding layer area;
4) filling configuration treatment is carried out on the protrusion layer area, the inner reduction wall thickness is 1.8mm to 3 x 0.6mm, and protrusion filling thickness and slice information (5 layers) of each area are obtained;
5) selecting an outer surface, performing path editing processing based on an NX software NC module, and generating slice information of 3 layers of model wall thickness curved surface offset by combining wall thickness values;
6) the helmet printing material is a 3K continuous carbon fiber reinforced PLA composite prepreg wire with the diameter of 0.8mm, the diameter of a nozzle is set to be 1.0mm, the filling angle is set to be 45 degrees, the filling distance is set to be 0.8mm, the filling mode is 'zigzag filling', and the relative filling transformation angle of each curved surface layer is 90 degrees (namely the filling angle: first layer 45 °, second layer-45 °, third layer 45 ° …);
7) selecting a model bottom sideline, clicking a starting point, setting a model base filling starting point, carrying out layer-by-layer path planning according to the parameter setting of the step 6) according to the filling principle of 'base layer sequential filling → protrusion layer sequential filling → outer wall sequential filling', until the target helmet overall printing path code is obtained, converting the position and posture state of the printing head so as to always meet the condition that the central line of the nozzle is vertical to the path direction, and generating a final printing code of 6-axis printing equipment;
8) the multi-degree-of-freedom printing equipment performs layer-by-layer filling printing on the target helmet supporting mould according to the printing codes until the target helmet is printed;
9) taking down the target helmet and the supporting die from the printing platform base, placing the target helmet in a water tank until the die is hydrolyzed, taking out the target helmet, and finishing printing.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims (8)

1. A multi-degree-of-freedom additive manufacturing printing method for a helmet is characterized by comprising the following steps of:
step 1: extracting shape features of the target helmet model, including feature information of inner and outer surfaces, sidelines and points;
and 2, step: setting a characteristic layer thickness t0 and a wall thickness coefficient k, selecting the inner surface of a helmet model, calling a numerical control program, and carrying out equidistant offset layering on a target workpiece from the inner surface to the outer surface by a value t0 to obtain a series of curved surface layers, wherein the series of curved surface layers are further preferable and integrated, and information of each layer in the thickness direction of the model is recorded;
and step 3: according to the integrality of each curved surface layer, based on the principle of dividing the substrate layer and the protruding layer, roughly dividing the model, traversing the protruding part, further refining and dividing the protruding part, and finally realizing the area division of the whole model;
and 4, step 4: filling and configuring the protrusion layer, and obtaining protrusion filling thickness and slice information of each area, wherein the inner reduction wall thickness T is k T0;
and 5: selecting an outer surface, calling a numerical control program, and generating model wall thickness curved surface offset layered slice information by combining a wall thickness value;
step 6: setting the diameter of a nozzle, a filling angle, a filling interval and selecting a filling mode;
and 7: selecting a model bottom sideline, clicking a selection starting point, setting a model base filling starting point, and performing layer-by-layer path planning according to the parameter setting in the step 6 according to the filling principle of base layer sequential filling → protrusion layer sequential filling → outer wall sequential filling until the target helmet overall printing path information is obtained;
and 8: and the multi-degree-of-freedom printing equipment performs layer-by-layer filling printing on the target helmet supporting mould according to the printing path information until the target helmet printing is completed.
2. The multi-degree-of-freedom additive manufacturing printing method for helmets according to claim 1, wherein the helmet support mold is designed according to the inner surface of the target helmet part model, and the soluble resin material is selected.
3. The multi-degree-of-freedom additive manufacturing printing method for the helmet as claimed in claim 2, wherein the helmet support mold has two forming modes, one is implemented by assembling double printing heads by using the multi-degree-of-freedom printing device, one of the printing heads is used for conventionally printing the support mold, and the other printing head is used for curved surface printing the helmet main body;
and the other type is that the printing platform is arranged on a printing platform of the multi-degree-of-freedom printing equipment after the printing is finished by adopting the single FDM printing equipment.
4. The multi-degree-of-freedom additive manufacturing printing method for the helmet as claimed in claim 1, wherein the target helmet printing material is thermoplastic plastic wire or fiber reinforced resin matrix prepreg composite wire using the thermoplastic plastic wire as a matrix.
5. The multi-degree-of-freedom additive manufacturing printing method for the helmet as claimed in claim 1, wherein after the target helmet is printed, the target helmet is taken off from the printing table support together with the helmet mold, and is kept in a normal temperature water tank until the supporting mold is dissolved, so that the target helmet part is obtained.
6. The multi-degree-of-freedom additive manufacturing printing method for the helmet as claimed in claim 1, wherein the printing device is a six-axis mechanical arm printer, and the pose state of a printing head of the six-axis mechanical arm printer always satisfies that the central line of the nozzle is perpendicular to the path direction.
7. The multi-degree-of-freedom additive manufacturing printing method for the helmet as claimed in claim 1, wherein parameters of filling paths of each layer of information of each curved surface layer obtained after the curved surface of the target helmet model is sliced are independently set, so that materials of each layer are arranged in a staggered manner, and a weaving strengthening effect is achieved.
8. The multi-degree-of-freedom additive manufacturing printing method for helmets according to claim 1, wherein the filling manner is one of straight filling, zigzag filling or zigzag filling, which is set individually for each layer.
CN202210684578.8A 2022-06-17 2022-06-17 Multi-degree-of-freedom additive manufacturing printing method for helmet Active CN114986872B (en)

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Application Number Priority Date Filing Date Title
CN202210684578.8A CN114986872B (en) 2022-06-17 2022-06-17 Multi-degree-of-freedom additive manufacturing printing method for helmet
PCT/CN2022/107548 WO2023240747A1 (en) 2022-06-17 2022-07-23 Multi-degree-of-freedom additive manufacturing based printing method for helmet
NL2034928A NL2034928B1 (en) 2022-06-17 2023-05-26 Method for manufacturing a helmet by using a multi-degree-of-freedom additive printing

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CN114986872B CN114986872B (en) 2023-03-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116352018A (en) * 2023-02-09 2023-06-30 南京航空航天大学 Gradient self-adaptive printing shape control method for multi-material composite sand mold
CN116373305A (en) * 2023-01-05 2023-07-04 南京航空航天大学 Space curved surface printing path planning method based on equidistant discrete

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US20030167099A1 (en) * 2001-03-06 2003-09-04 Thenkurussi Kesavadas Rapid informational prototypes, including rapid colored prototypes
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