The Influence of Printing Parameters, Post-Processing, and Testing Conditions on the Properties of Binder Jetting Additive Manufactured Functional Ceramics

Abstract

This article outlines the current state-of-the-art binder jetting (BJT) additive manufacturing of functional ceramics. The impact of printing parameters, heat treatment processing, and testing conditions on the observed performance of these ceramics is discussed. Additionally, this article discusses the impact of physical properties such as density and mechanical strength on the overall performance of these functional ceramics. Although printing parameters and initial feedstock are crucial for the printability of the desired parts, other factors play an important role in the performance of the ceramic. Thermal post-processing is crucial to achieve optimized functional properties, while the testing orientation is key to obtaining the maximum output from the part. Finally, future research directions for this field are also discussed.

Materials research & measurement needs for ceramics additive manufacturing

“…A major overarching problem that hinders the development of ceramics AM is the nearly complete lack of modeling efforts, although some promising published results of modeling and simulations have emerged recently. [66][67][68][69] The community envisions modeling to benefit almost every aspect of the AM process, from the selection of feedstock characteristics and build parameters to the optimization of debinding and sintering schedules per a specific product. Development of computational approaches and software tools, which would enable predictive simulations of a complete workflow even for a few selected AM methods, like SLA or DIW, is perceived as a high priority.…”

“…A major overarching problem that hinders the development of ceramics AM is the nearly complete lack of modeling efforts, although some promising published results of modeling and simulations have emerged recently 66‐69 . The community envisions modeling to benefit almost every aspect of the AM process, from the selection of feedstock characteristics and build parameters to the optimization of debinding and sintering schedules per a specific product.…”

Searching for biological feedstock material: 3D printing of wood particles from house borer and drywood termite frass

“…CC-BY 4.0 International license made available under a (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is The copyright holder for this preprint this version posted May 27, 2020. ; https://doi.org/10.1101/2020.05.27.118562 doi: bioRxiv preprint technologies, the "Binder Jetting" (BJ), is making use of a powdery material as feedstock [3,4], see also Fig 1 . A layer of powdered material is first spread as a layer and subsequently the corresponding layer information of the object manufactured is selectively inscribed by a printing head, spraying individual droplets of a binding liquid onto the powder layer, thus selectively consolidating the powder and defining the crosssection of the object in a respective layer.…”

A Review of Post-Processing Technologies in Additive Manufacturing

“…These defects have serious influences on the internal microstructure and mechanics of the final parts [49][50][51][52][53][54][55]. Therefore, after the parts being manufactured, post-processing operations are usually required to improve the mechanical properties and the surface quality, achieving their intended utilization [56][57][58][59][60][61][62]. There have many post-processing technologies, such as the thermal post-processing method to release thermally-induced residual stress and laser peening to reduce micro-defects and improve surface quality.…”