Rapid Prototyping Journal: Volume 26 Issue 10

Nonlinear and linearized gray box models of direct-write printing dynamics

Andrej Simeunović, David John Hoelzle

The purpose of this study is to develop nonlinear and linearized models of DW printing dynamics that capture the complexity of DW while remaining integrable into control schemes…

Customized design and additive manufacturing of kids’ ankle foot orthosis

Harish Kumar Banga, Parveen Kalra, Rajendra M. Belokar, Rajesh Kumar

The purpose of this study is improvement of human gait by customized design of ankle foot orthosis (AFO). An has been the most frequently used orthosis in children with cerebral…

Tailoring physico-mechanical properties and rheological behavior of ABS filaments for FDM via blending with SEBS TPE

Mozhgan Sayanjali, Amir Masood Rezadoust, Foroud Abbassi Sourki

This paper aims to focus on the development of the three-dimensional (3D) printing filaments based on acrylonitrile butadiene styrene (ABS) copolymer and…

Strain-rate-dependent properties of short carbon fiber-reinforced acrylonitrile-butadiene-styrene using material extrusion additive manufacturing

Wilco M.H. Verbeeten, Miriam Lorenzo-Bañuelos, Rubén Saiz-Ortiz, Rodrigo González

The purpose of the present paper is to quantify and analyze the strain-rate dependence of the yield stress for both unfilled acrylonitrile-butadiene-styrene (ABS) and short carbon…

Analysis of post-processing influence on the geometrical and dimensional accuracy of selective laser melting parts

Eduardo Cuesta, Braulio J. Alvarez, Pablo Zapico, Sara Giganto

This study aims to analyze the effect of the different common post-processes on the geometrical and dimensional accuracy of selective laser melting (SLM) parts.

500 days of Thingiverse: a longitudinal study of 30 popular things for 3D printing

James I. Novak

The purpose of this paper is to provide insight into the way object data on Thingiverse changes over time, analyzing the relationships among views, downloads, likes, makes…

Influence of ABS print parameters on a 3D open-source, self-replicable printer

André Luiz Alves Guimarães, Vicente Gerlin Neto, Cesar Renato Foschini, Maximiliano dos Anjos Azambuja, Luiz Antonio Vasques Hellmeister

The purpose of this paper is to investigate and discuss the influence of printing parameters on the mechanical properties of acrylonitrile butadiene styrene (ABS) print by fused…

Effect of post-heat treatment cooling on microstructure and mechanical properties of selective laser melting manufactured austenitic 316L stainless steel

Saad Waqar, Jiangwei Liu, Qidong Sun, Kai Guo, Jie Sun

This paper aims to investigate the influence of different post-annealing cooling conditions, i.e. furnace cooling (heat treatment (HT) 1 – slow cooling) and air cooling (HT 2  

An improved medial axis path generation algorithm for selective laser melting

Li Zhang, Linshan Ding, Saif Ullah, Tao Hu, Yangyang Xu, Li Chen, Muhammad Hanif

The principle of the medial axis calculation is complicated and difficult to implement. Moreover, the accuracy is not high. Then, as the generated path has an endpoint at the…

Study of the annealing influence on the mechanical performance of PA12 and PA12 fibre reinforced FFF printed specimens

Isaac Ferreira, Carolina Melo, Rui Neto, Margarida Machado, Jorge Lino Alves, Sacha Mould

The purpose of this study is to evaluate and compare the mechanical performance of FFF parts when subjected to post processing thermal treatment. Therefore, a study of the…

Optimizing the pinch-off problem for gradient triply periodic minimal surface cellular structures manufactured by selective laser melting

Mingkang Zhang, Yongqiang Yang, Wentao Qin, Shibiao Wu, Jie Chen, Changhui Song

This study aims to focus on the optimized design and mechanical properties of gradient triply periodic minimal surface cellular structures manufactured by selective laser melting.

3D printing of geopolymer-based concrete for building applications

Asif Ur Rehman, Vincenzo M. Sglavo

Three-dimensional (3D) printing technology allows geometric complexity and customization with a significant reduction in the structural environmental impact. Nevertheless, it…

Investigation into effects of cooling rate on properties of polyamide 12 parts in the multi jet fusion process

Mattia Mele, Giampaolo Campana, Gregorio Pisaneschi, Gian Luca Monti

Multi jet fusion is an industrial additive manufacturing technology characterised by high building speed and considerable properties of the parts. The cooling phase represents a…

Mapping value clusters of additive manufacturing on design strategies to support part identification and selection

Christoph Klahn, Filippo Fontana, Bastian Leutenecker-Twelsiek, Mirko Meboldt

Additive manufacturing (AM) allows companies to create additional value in the processes of new product development and order fulfillment. One of the challenges for engineers is…

Mechanical behaviour and interface evaluation of hybrid MIM/PBF stainless steel components

Aldi Mehmeti, Pavel Penchev, Donal Lynch, Denis Vincent, Nathalie Maillol, Johannes Maurath, Julien Bajolet, David Ian Wimpenny, Khamis Essa, Stefan Dimov

The paper reports an investigation into the mechanical behaviour of hybrid components produced by combining the capabilities of metal injection moulding (MIM) with the laser-based…

Realistic design of laser powder bed fusion channels

Christopher Gottlieb Klingaa, Sankhya Mohanty, Jesper Henri Hattel

Conformal cooling channels in additively manufactured molds are superior over conventional channels in terms of cooling control, part warpage and lead time. The heat transfer…

Investigating additive manufacturing implementation factors using integrated ISM-MICMAC approach

Harshad Sonar, Vivek Khanzode, Milind Akarte

The purpose of this paper is to identify various factors influencing additive manufacturing (AM) implementation from operational performance in the Indian manufacturing sector and…

Nondestructive evaluation of fused filament fabrication 3D printed structures using optical coherence tomography

Lucas Ramos De Pretto, Marcello Magri Amaral, Anderson Zanardi de Freitas, Marcus Paulo Raele

The quality of components under fused filament fabrication (FFF) is related to the correct filament spacing and bonding of successively deposited layers and is evaluated mainly by…