Rapid Prototyping Journal: Volume 27 Issue 1

A finned-riser design to avoid the capillarity effect in multi-jet fusion technology

Mattia Mele, Giampaolo Campana, Gian Luca Monti

Multi-jet fusion (MJF) process is based on a polymeric powder bed that is heated and irradiated by infra-red lamps. The layer under construction is jetted with inks to provide the…

Research on porous titanium implants and its animal experiments

Chunyan Yao, Dongdong Chen, Zhongli Zheng, Qiangsheng Wang, Kaijie Fu

The purpose of this study is to obtain an effective implant with porous structures on its surface, named porous-surfaced implant, which helps to improve the overall stability of…

Investigation of the effect of torch tilt and external magnetic field on arc during overlapping deposition of wire arc additive manufacturing

Xiangman Zhou, Qihua Tian, Yixian Du, Yancheng Zhang, Xingwang Bai, Yicha Zhang, Haiou Zhang, Congyang Zhang, Youlu Yuan

The purpose of this paper is to find a theoretical reference to adjust the unsymmetrical arc shape and plasma flow of overlapping deposition in wire arc additive manufacturing…

Cellulose nanocrystals reinforced shape memory polymer cardiovascular stent

Yu Chen, Irina Tatiana Garces, Tian Tang, Cagri Ayranci

The purpose of this paper is to demonstrate an innovative, fast and low-cost method to fabricate customized stents using polyurethane-based shape memory polymers composite…

Effect of steam autoclaving on laser sintered polyamide 12

James Robert Wingham, Maha Omran, Joanna Shepherd, Candice Majewski

The use of laser sintering (LS) in the medical sector has increased dramatically in recent years. With the move towards direct use of these parts in clinical applications, there…

Powder characterization and part density for powder bed fusion of 17-4 PH stainless steel

Sean Daniel Dobson, Thomas Louis Starr

Characteristics of the metal powder are a key factor in the success of powder bed fusion (PBF) additive manufacturing. Powders for PBF from different manufacturers may have a…

Surface finishing of additively manufactured stainless steel surgical instruments

Alasdair Soja, Jun Li, Seamus Tredinnick, Tim Woodfield

Additive manufacturing (AM) has the potential to revolutionise the fabrication of complex surgical instruments. However, AM parts typically have a higher surface roughness…

Influence of laser parameters and Ti content on the surface morphology of L-PBF fabricated Titania

Abid Ullah, HengAn Wu, Asif Ur Rehman, YinBo Zhu, Tingting Liu, Kai Zhang

The purpose of this paper is to eliminate Part defects and enrich additive manufacturing of ceramics. Laser powder bed fusion (L-PBF) experiments were carried to investigate the…

Comparative study of the flexural properties of ABS, PLA and a PLA–wood composite manufactured through fused filament fabrication

J.A. Travieso-Rodriguez, R. Jerez-Mesa, Jordi Llumà, Giovanni Gomez-Gras, Oriol Casadesus

The aim of this paper is to analyze the mechanical properties of acrylonitrile-butadiene-styrene (ABS) parts manufactured through fused filament fabrication and compare these…

Digital fabrication of removable partial dentures made of titanium alloy and zirconium silicate micro-ceramic using a combination of additive and subtractive manufacturing technologies

Yan Zhang, Kai Li, Hai Yu, Jiang Wu, Bo Gao

This paper aims to present a new design for removable partial dentures (RPDs) for partially edentulous patients to improve the efficiency and quality of RPD manufacturing…

Region-based layered infill area generation of STL models for additive manufacturing

Nan Zhang, Lichao Zhang, Senlin Wang, Shifeng Wen, Yusheng Shi

In the implementation of large-size additive manufacturing (AM), the large printing area can be established by using the tiled and fixed multiple printing heads or the single…

Effect of build orientation on fracture behaviour of AlSi10Mg produced by selective laser melting

Sultan AlRedha, Anton Shterenlikht, Mahmoud Mostafavi, Derreck Van Gelderen, Omar Eduardo Lopez-Botello, Luis Arturo Reyes, Patricia Zambrano, Carlos Garza

A key challenge found in additive manufacturing is the difficulty to produce components with replicable microstructure and mechanical performance in distinct orientations. This…

Using simple estimates for the flexural stiffness of thick FDM beams based on sandwich beam models

Alejandro Tapia Córdoba, Daniel García Vallejo, Pablo Millán Gata, Jaime Domínguez Abascal

The incipient growth of the fused deposition modeling (FDM) techniques encourages the development of models to predict the behavior of these parts involving complicated and…

Using additive manufactured parametric models for wind tunnel test-based aerodynamic shape optimization

Hyoung Seog Chung, Seung Pil Kim, Younseok Choi

The purpose of this paper is to propose a new approach of using additively manufactured parametric models in the wind tunnel test-based aerodynamic shape optimization (ASO…

Colourful fused filament fabrication method based on transitioning waste infilling technology with a colour surface model

Zizhao Wang, Hongyao Shen, Senyang Wu, Jianzhong Fu

Fused filament fabrication (FFF) is a common additive manufacturing method that is widely used owing to its low cost, environmental friendliness and safety. Colour models are…

Parametric optimization of fused deposition modelling process using Grey based Taguchi and TOPSIS methods for an automotive component

Sakthivel Murugan R., Vinodh S.

This paper aims to optimize the process parameters of the fused deposition modelling (FDM) process using the Grey-based Taguchi method and the results to be verified based on a…

Statistical models for the mechanical properties of 3D printed external medical aids

Rafael Moreno, Diego Carou, Daniel Carazo-Álvarez, Munish Kumar Gupta

3D printing is gaining attention in the medical sector for the development of customized solutions for a wide range of applications such as temporary external implants. The…

The influence of the MEX manufacturing parameters on the tensile elastic response of printed elements

Jakub Bryła

This paper aims to investigate the influence of the manufacturing stages on three-dimensionally printed elements via material extrusion (MEX).

Computational and experimental study of lattice structured patterns for casting process

Timur Rizovich Ablyaz, Karim Ravilevich Muratov, Aleksey Aleksandrovich Sumkov, Evgeniy Sergeevich Shlykov, Sahil Dhiman, Sarabjeet Singh Sidhu

The quality of lost foam casted engineering components is directly influenced by the characteristics of the respective ceramic shell mold (CSM) and hence casting pattern. In this…

Experimental and computational analysis of mechanical properties of RGD840 material manufactured through PolyJet process

Nagendra Kumar Maurya, Vikas Rastogi, Pushpendra Singh

Nowadays, the PolyJet technique is used to fabricate low volume functional parts in engineering and biomedical applications. However, the mechanical properties of the components…