Effects of Nozzle Geometries on 3D Printing of Clay Constructs: Quantifying Contour Deviation and Mechanical Properties

Manikandan, Karthick; Jiang, Xuepeng; Singh, Amit; Li, Beiwen; Qin, Hantang

doi:10.1016/j.promfg.2020.05.160

Cited by 25 publications

(7 citation statements)

References 18 publications

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“…The extrinsic, structure-driven strength of bone scaffolds can be engineered through the design of fabrication processes. The use of square struts in the scaffolds produced here reduces the stress concentration that generally occurs in the more common robocasting of round strut profiles and allowed the attainment of higher levels of compressive strength [45]. In addition, in order to characterize the effect of strontium and copper inclusion on the compressive strength of bulk diopside materials, compressive tests were conducted on pellets, with results confirming the significant increase in strength by strontium doping or strontium/copper codoping (Fig.…”

Section: Mechanical Performancementioning

confidence: 80%

Enhanced mechanical performance and bioactivity in strontium/copper co-substituted diopside scaffolds

Pang

Yang

et al. 2023

Biomaterials Advances

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Section: Mechanical Performancementioning

confidence: 80%

Enhanced mechanical performance and bioactivity in strontium/copper co-substituted diopside scaffolds

Pang

Yang

et al. 2023

Biomaterials Advances

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“…These data are transmitted to the printer, which reproduces the design layer by layer until a complete model is obtained [ 35 ]. Manikandan et al [ 36 ] discovered that the geometry of the nozzle has a significant influence on the 3D printing of clay-based materials. They observed that circular nozzles produce less surface roughness and contour deviation for cylindrical structures, whereas square nozzles result in higher compression strength, but also relatively higher contour deviation and surface roughness.…”

Section: Resultsmentioning

confidence: 99%

Three-Dimensional Printing of Large Ceramic Products and Process Simulation

et al. 2023

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Ceramic 3D printing is a promising technology that overcomes the limitations of traditional ceramic molding. It offers advantages such as refined models, reduced mold manufacturing costs, simplified processes, and automatic operation, which have attracted a growing number of researchers. However, current research tends to focus more on the molding process and print molding quality rather than exploring printing parameters in detail. In this study, we successfully prepared a large-size ceramic blank using screw extrusion stacking printing technology. Subsequent glazing and sintering processes were used to create complex ceramic handicrafts. Additionally, we used modeling and simulation technology to explore the fluid model printed by the printing nozzle at different flow rates. We adjusted two core parameters that affect the printing speed separately: three feed rates were set to be 0.001 m/s, 0.005 m/s, and 0.010 m/s, and three screw speeds were set to be 0.5 r/s, 1.5 r/s, and 2.5 r/s. Through a comparative analysis, we were able to simulate the printing exit speed, which ranged from 0.0751 m/s to 0.6828 m/s. It is evident that these two parameters have a significant impact on the printing exit speed. Our findings show that the extrusion velocity of clay is approximately 700 times faster than the inlet velocity at an inlet velocity of 0.001–0.010 m/s. Furthermore, the screw speed is influenced by the inlet velocity. Overall, our study sheds light on the importance of exploring printing parameters in ceramic 3D printing. By gaining a deeper understanding of the printing process, we can optimize printing parameters and further improve the quality of ceramic 3D printing.

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“…The screw feeder is connected by three connecting rods, and it can print with ceramic slip directly. The nozzle or orifice decides the dimension of the extruded line of clay [30,31]. The screw is coupled to the stepper motor (NEMA17) and operates inside the extruder, as shown in Fig.…”

Section: Screw Print Headmentioning

confidence: 99%

A trial to convert a polymer FDM 3D printer to handle clay materials

Chaari¹,

Abdelfatah²,

Loreno³

2022

SN Appl. Sci.

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The research aims to show the ability to convert the Fused Deposition Modeling 3D printer to be compatible with the clay mixture after modifying the structure, setting up Cura software, and changing the print head technology. This solution provides research teams and scientists with opportunities in several ways (manufacture patch antenna substrate, dielectric automobile sensors, and ceramic dielectric aerospace technology). Additive manufacturing allows the production of many intricate shapes with ceramics, which is difficult with a traditional method. This paper used WASP ceramic slurry as raw material for Liquid Deposition Modeling (LDM) of various samples using the Archimedes screw and air pressure dispensing technique (a two-step process). LDM is a low-cost and straightforward technology appropriate for the clay prototype scale. Different clay-built shapes have been produced with water-to-clay ratios ranging from 0.57 to 0.69. The effect of the nozzle size in printing experiment tests is demonstrated. The experiment tested the print head (extruder) mechanism, the properties of the materials suitable for the putty, and how the wet slurry material is extruded from the nozzle. The optimum air pressure and slicing configuration for efficient printing are provided. Samples were stress-tested after they were dried for 24 h at average laboratory temperature and then exposed to 1000$$^\circ $$ ∘ for 1 h.

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Effects of Nozzle Geometries on 3D Printing of Clay Constructs: Quantifying Contour Deviation and Mechanical Properties

Cited by 25 publications

References 18 publications

Enhanced mechanical performance and bioactivity in strontium/copper co-substituted diopside scaffolds

Enhanced mechanical performance and bioactivity in strontium/copper co-substituted diopside scaffolds

Three-Dimensional Printing of Large Ceramic Products and Process Simulation

A trial to convert a polymer FDM 3D printer to handle clay materials

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