Research on coaxial 3D printing technology and application based on switchable shaft core material

doi:10.16731/j.cnki.1671-3133.2024.10.004

Abstract

Abstract: Currently,the mainstream method for direct-writing multi-material 3D printing involves designing a nozzle with multiple inlets to converge into a single outlet,where materials are extruded and organically bond together to achieve a combination of different properties. However,multi-material additive manufacturing requires excellent bonding strength between materials,and the material parameters must meet the requirements of high viscosity and shear-thinning characteristics for 3D printing.In order to achieve continuous and stable printing of multiple materials,the principle of multi-material coaxial printing and experimental printing using a Coaxial Core Multi-material 3D printing (CCM3D) nozzle with a core material that has a rapid switching function was studied. The CCM3D nozzle allows for the stable selective extrusion of core materials with different rheological properties,enabling multi-material coaxial manufacturing. By generating multi-material G-code for printing,the rapid switching between two different viscosity core materials and the printing of 2D patterns are demonstrated. Taking advantage of the benefits of coaxial multi-material printing,silicone with different elastic moduli is selectively embedded into the coaxial core,showcasing its capability to print 3D models.

Key words: multi-material additive manufacturing, CCM3D nozzle, rheological characteristics, 2D patterns, 3D models

CLC Number:

TB324

CAO Yanbing, XU Jiawen, YU Jiangyun, CHEN Peng, ZHU Axiang, ZHANG Yaling, LIU Yu. Research on coaxial 3D printing technology and application based on switchable shaft core material[J]. Modern Manufacturing Engineering, 2024, 529(10): 24-30.

References

[1] KARKUN M S,DHARMALINGAM S.3D printing technology in aerospace industry-a review[J].International Journal of Aviation,Aeronautics,and Aerospace,2022,9(2):4.
[2] MAR P,VATSYA P,RAJNISH R K,et al.Application of 3D printing in hip and knee arthroplasty:a narrative review[J].Indian Journal of Orthopaedics,2021,55:14-26.
[3] LIU H,ZHANG H,HAN W,et al.3D printed flexible strain sensors:from printing to devices and signals[J].Advanced Materials,2021,33(8):2004782.
[4] SACHYANI KENETH E,KAMYSHNY A,TOTARO M,et al.3D printing materials for soft robotics[J].Advanced Materials,2021,33(19):2003387.
[5] 王晓强,文世峰,周燕,等.多材料增材制造研究现状及展望[J].电加工与模具,2022(2):1-14,36.
[6] RENTERIA A,BALCORTA V H,MARQUEZ C,et al.Direct ink write multi-material printing of PDMS-BTO composites with MWCNT electrodes for flexible force sensors[J].Flexible and Printed Electronics,2022,7(1):015001.
[7] GUO Y,LIU Y,LIU J,et al.Shape memory epoxy composites with high mechanical performance manufactured by multi-material direct ink writing[J].Composites Part A:Applied Science and Manufacturing,2020,135:105903.
[8] MALONE E,BERRY M,LIPSON H.Freeform fabrication and characterization of Zn-air batteries[J].Rapid Prototyping Journal,2008,14(3):128-140.
[9] GUO S Z,QIU K,MENG F,et al.3D printed stretchable tactile sensors[J].Advanced Materials,2017,29(27):1701218.
[10] MARTÍNEZ-VAZQUEZ F J,PAJARES A,MIRANDA P.A simple graphite-based support material for robocasting of ceramic parts[J].Journal of the European Ceramic Society,2018,38(4):2247-2250.
[11] LUO B,ZHONG Y,CHEN H,et al.Direct writing corrugated PVC gel artificial muscle via multi-material printing processes[J].Polymers,2021,13(16):2734.
[12] YANG G,SUN Y,LI M,et al.Direct-ink-writing(DIW) 3D printing functional composite materials based on supra-molecular interaction[J].Composites Science and Technology,2021,215:109013.
[13] TRUBY R L,WEHNER M,GROSSKOPF A K,et al.Soft somatosensitive actuators via embedded 3D printing[J].Advanced Materials,2018,30(15):1706383.
[14] KIM S,OH J,JEONG D,et al.Direct wiring of eutectic gallium-indium to a metal electrode for soft sensor systems[J].ACS Applied Materials and Interfaces,2019,11(22):20557-20565.
[15] SKYLAR-SCOTT M A,MUELLER J,VISSER C W,et al.Voxelated soft matter via multimaterial multinozzle 3D printing[J].Nature,2019,575(7782):330-335.
[16] MOORE J P,WILLIAMS C B.Fatigue properties of parts printed by Polyjet material jetting[J].Rapid Prototyping Journal,2015,21(6):675-685.
[17] MIRZAALI M J,NAVA A H D L,GUNASHEKAR D,et al.Mechanics of bioinspired functionally graded soft-hard composites made by multi-material 3D printing[J].Composite Structures,2020,237:111867.
[18] TEE Y L,PENG C,PILLE P,et al.Polyjet 3D printing of composite materials:experimental and modelling approach[J].JOM,2020,72:1105-1117.
[19] TAGLIAFERRI S,PANAGIOTOPOULOS A,MATTEVI C.Direct ink writing of energy materials[J].Materials Advances,2021,2(2):540-563.
[20] SHAO Y,HAN R,QUAN X,et al.Study on ink flow of silicone rubber for direct ink writing[J].Journal of Applied Polymer Science,2021,138(33):50819.
[21] SAADI M,MAGUIRE A,POTTACKAL N T,et al.Direct ink writing:a 3D printing technology for diverse materials[J].Advanced Materials,2022,34(28):2108855.
[22] RAFIEE M,GRANIER F,THERRIAULT D.Advances in coaxial additive manufacturing and applications[J].Advanced Materials Technologies,2021,6(11):2100356.