Recent progress of alumina ceramics by direct ink writing: Ink design, printing and post-processing

Hossain, Sk S.; Lu, Kathy

doi:10.1016/j.ceramint.2023.01.143

Cited by 43 publications

(7 citation statements)

References 94 publications

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“…On the other hand, while automation in post-processing has immense contribution, there is room for improvement in developing more sophisticated and adaptable robotic systems [108,109]. Research efforts should aim at creating autonomous systems capable of handling intricate geometries, diverse materials and multi-step post-processing operations [109].…”

Section: Future Directions and Research Opportunitiesmentioning

confidence: 99%

Post-Production Finishing Processes Utilized in 3D Printing Technologies

Kantaros,

Ganetsos,

Petrescu

et al. 2024

Processes

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Additivе manufacturing (AM) has rеvolutionizеd production across industriеs, yеt challеngеs pеrsist in achiеving optimal part quality. This papеr studies thе еnhancеmеnt of post-procеssing tеchniquеs to еlеvatе thе ovеrall quality of AM-producеd componеnts. This study focuses on optimizing various post-procеssing mеthodologiеs to addrеss prеvalеnt issuеs such as surfacе roughnеss, dimеnsional accuracy, and matеrial propеrtiеs. Through an еxtеnsivе rеviеw, this article idеntifiеs and еvaluatеs a spеctrum of post-procеssing mеthods, еncompassing thеrmal, chеmical, and mеchanical trеatmеnts. Spеcial attеntion is givеn to thеir еffеcts on diffеrеnt typеs of additivе manufacturing tеchnologiеs, including sеlеctivе lasеr sintеring (SLS), fusеd dеposition modеling (FDM), and stеrеolithography (SLA) and their dedicated raw materials. Thе findings highlight thе significancе of tailorеd post-procеssing approachеs in mitigating inhеrеnt dеfеcts, optimizing surfacе finish, and еnhancing mеchanical propеrtiеs. Additionally, this study proposеs novеl post-procеssing procedures to achiеvе supеrior quality whilе minimizing fabrication timе and infrastructure and material costs. Thе intеgration of post-procеssing techniques such as cleaning, surface finishing, heat treatment, support structure removal, surface coating, electropolishing, ultrasonic finishing, and hot isostatic pressing (HIP), as stеps dirеctly within thе additivе manufacturing workflow can immensely contribute toward this direction. The outcomes displayed in this article not only make a valuable contribution to the progression of knowledge regarding post-processing methods but also offer practical implications for manufacturers and researchers who are interested in improving the quality standards of additive manufacturing processes.

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Section: Future Directions and Research Opportunitiesmentioning

confidence: 99%

Post-Production Finishing Processes Utilized in 3D Printing Technologies

Kantaros,

Ganetsos,

Petrescu

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

“…In the contemporary design context, it is imperative for components to not only demonstrate exceptional functionality and performance, but also possess a unique visual aesthetic that effectively engages people and communicates a perception of novelty. The attainment of this state of harmony, when the technical and aesthetic aspects are balanced, necessitates a healthy interaction between pragmatic engineering principles and artistic creativity [38].…”

Section: Simulation Techniques In Advanced Castingmentioning

confidence: 99%

Advanced Casting Techniques for Complex-Shaped Components: Design, Simulation and Process Control

Pant,

Reddy,

Praveen

et al. 2023

E3S Web Conf.

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The advancement of manufacturing technology has resulted in an increasing need for detailed, lightweight, and high-performance components with complicated geometries across many sectors. The emergence of advanced casting processes has been crucial in addressing these needs, as they provide the potential to manufacture components with complex geometries, enhanced mechanical characteristics, and minimised material wastage. The present study delves into the intricate domain of advanced casting processes, with a specific emphasis on the areas of design, simulation, and process control. The design of components with intricate shapes poses difficulties that conventional casting techniques encounter difficulties in surmounting. Simulation methods are crucial for accurately predicting the solidification and flow characteristics in casting processes, as this is essential for the production of components without any defects. Sophisticated simulation technologies, like as computational fluid dynamics (CFD) and finite element analysis (FEA), are utilised in advanced casting processes to model and analyse the intricate thermal and fluid dynamics phenomena that transpire during the casting process. This research provides an in-depth analysis of the role of simulations in enhancing the comprehension of solidification patterns, the identification of probable faults, and the optimisation of gating and riser designs to improve the overall quality of castings.

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“…Recently, three-dimensional (3D) printing is a rapid prototyping technology to build an object layer by layer, which is called additive manufacturing as well. A 3D printing technology can direct the design of structures through computer-aided modeling and easy adaptation to product requirements by changing model designs and printer parameters, which is difficult to achieve by traditional technology . It has gained increasing attention in recent years. − The 3D printing techniques for ceramics mainly include direct ink writing (DIW), selective laser sintering, stereolithography appearance, and digital light processing …”

Section: Introductionmentioning

confidence: 99%

Optimization of 3D Printing Parameters for Alumina Ceramic Based on the Orthogonal Test

Wang,

Xiang,

Feng

et al. 2024

ACS Omega

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In this paper, an alumina ink with good rheological properties was successfully prepared using pseudoboehmite as the main component, nitric acid as the colloidal solvent, and sesbania powder as the lubricant. The impact of nine different ink formulations, namely, Ink1 to Ink9, on the printability and rheological features of the ink was investigated. Consequently, it was found that Ink3 with 5 wt % nitric acid and 5 wt % sesbania powder exhibited the most favorable formability. This ink was utilized to fabricate alumina samples with direct ink writing (DIW) three-dimensional (3D) printing technology. The printed alumina samples were characterized using an automatic Brunauer−Emmett−Teller, X-ray diffractometer, Fourier transform infrared spectroscopy, and scanning electron microscope. To obtain the optimal printing parameters, a threefactor and three-level orthogonal test was designed to research the influences of different 3D printing parameters (filling ratio, nozzle diameter, and layer thickness) on the specific surface area, pore characteristics (size and volume), and radial crushing strength of the alumina specimens. The primary and secondary orders of the effects on the radial crushing strength and pore structure were determined through analysis of the experimental data. The experimental results showed that the alumina sample with a filling ratio of 80%, nozzle diameter of 0.6 mm, and layer thickness of 0.3 mm was found to have better strength of 48.07 ± 9.53 N/mm and specific surface area of 185.7315 m 2 /g. This study provides a theoretical base for the preparation of alumina carriers by DIW 3D printing.

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Recent progress of alumina ceramics by direct ink writing: Ink design, printing and post-processing

Cited by 43 publications

References 94 publications

Post-Production Finishing Processes Utilized in 3D Printing Technologies

Post-Production Finishing Processes Utilized in 3D Printing Technologies

Advanced Casting Techniques for Complex-Shaped Components: Design, Simulation and Process Control

Optimization of 3D Printing Parameters for Alumina Ceramic Based on the Orthogonal Test

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