Rapid Prototyping Journal: Volume 30 Issue 1

Influence of copper interlayer on the interface characteristics of stainless steel–aluminium transitional structure in wire arc directed energy deposition

Amrit Raj Paul, Manidipto Mukherjee, Mohit Kumar Sahu

The purpose of this study is to investigate the deposition of SS–Al transitional wall using the wire arc directed energy deposition (WA-DED) process with a Cu interlayer. This…

Selection methodology for additive manufacturing processes considering design, material, and manufacturability

Suraj Goala, Prabir Sarkar

One of the critical reasons for the nonacceptance of additive manufacturing (AM) processes is the lack of understanding and structured knowledge of design for additive…

Controlling anisotropy and brittle-to-ductile transitions by varying extrusion width in short fibre reinforced additive manufacturing

Jiongyi Yan, Emrah Demirci, Andrew Gleadall

Extrusion width, the width of printed filaments, affects multiple critical aspects in mechanical properties in material extrusion additive manufacturing: filament geometry…

Explainable deep neural network for in-plain defect detection during additive manufacturing

Deepak Kumar, Yongxin Liu, Houbing Song, Sirish Namilae

The purpose of this study is to develop a deep learning framework for additive manufacturing (AM), that can detect different defect types without being trained on specific defect…

Additively manufactured medical bone screws: an initial study to investigate the impact of lattice-based Voronoi structure on implant primary stability

Chiara Bregoli, Jacopo Fiocchi, Carlo Alberto Biffi, Ausonio Tuissi

The present study investigates the mechanical properties of three types of Ti6Al4V ELI bone screws realized using the laser powder bed fusion (LPBF) process: a fully threaded…

Analysis of additively manufactured flexible wing model

Rossana Fernandes, Benyang Hu, Zhichao Wang, Zheng Zhang, Ali Y. Tamijani

This paper aims to assess the feasibility of additively manufactured wind tunnel models. The additively manufactured model was used to validate a computational framework allowing…

Steady melting in material extrusion additive manufacturing

Austin R. Colon, David Owen Kazmer, Amy M. Peterson, Jonathan E. Seppala

A main cause of defects within material extrusion (MatEx) additive manufacturing is the nonisothermal condition in the hot end, which causes inconsistent extrusion and polymer…

Development and characterization of composite materials with multi-walled carbon nanotubes and graphene nanoplatelets for powder bed fusion

Ana C. Lopes, Álvaro M. Sampaio, António J. Pontes

With the technological progress, high-performance materials are emerging in the market of additive manufacturing to comply with the advanced requirements demanded for technical…

Investigations on friction stir spot welding to overcome bed size limits of material extrusion (MEX) 3D printers

Vivek Kumar Tiwary, Arunkumar Padmakumar, Vinayak R. Malik

Material extrusion (MEX) 3D printers suffer from an intrinsic limitation of small size of the prints due to its restricted bed dimension. On the other hand, friction stir spot…

Non-destructive evaluation of melt-extruded part quality using in situ data

Veera Harsha Vardhan Jilludimudi, Daniel Zhou, Eric Rubstov, Alexander Gonzalez, Will Daknis, Erin Gunn, David Prawel

This study aims to collect real-time, in situ data from polymer melt extrusion (ME) 3D printing and use only the collected data to non-destructively identify printed parts that…

Simulation of temperature profile in fused filament fabrication 3D printing method

Nastaran Mosleh, Masoud Esfandeh, Soheil Dariushi

Temperature is a critical factor in the fused filament fabrication (FFF) process, which affects the flow behavior and adhesion of the melted filament and the mechanical properties…

Experimental characterization, theoretical modeling and failure analysis of the mechanical behavior of acrylonitrile butadiene styrene parts by fused filament fabrication

Roberto Junior Algarín Roncallo, Luis Lisandro Lopez Taborda, Diego Guillen

The purpose of this research is present an experimental and numerical study of the mechanical properties of the acrylonitrile butadiene styrene (ABS) in the additive manufacturing…

Evaluation of a method for the additive tooling of injection mould inserts

Steffen Schrock, Stefan Junk, Albert Albers

This study aims to investigate a systematic approach to the production and use of additively manufactured injection mould inserts in product development (PD) processes. For this…

Numerical and experimental investigation on the heat transfer and mass transport in LPBF in-situ alloying of Al/Cu alloy

Yang Zhou, Zhong Li, Yuhe Huang, Xiaohan Chen, Xinggang Li, Xiaogang Hu, Qiang Zhu

Laser powder bed fusion (LPBF) in-situ alloying is a recently developed technology that provides a facile approach to optimizing the microstructural and compositional…

Investigation and optimization of hot pressed porcelain dental prostheses production by MSLA application

Ana Carla Cordeiro, Gustavo George Verdieri Nuernberg, Lilian Cristina Côcco, Marlon Wesley Machado Cunico

Different technologies may currently be used to produce dental prostheses, such as additive manufacturing and traditional milling. This study aims to evaluate and improve the…