Rapid Prototyping Journal: Volume 26 Issue 2

Mechanical characterization and comparison of additive manufactured ABS, Polyflex™ and ABS/Polyflex™ blended functional prototypes

Sunpreet Singh, Rupinder Singh

Additive manufacturing (AM) is one of the latest and most advanced technologies that are continuously expanding into various field applications. Undoubtedly, fused deposition…

Prediction of geometric characteristics in polycaprolactone (PCL) scaffolds produced by extrusion-based additive manufacturing technique for tissue engineering

Jiwoon Lee, Jesse Walker, Sanjay Natarajan, Sung Yi

Extrusion-based additive manufacturing (AM) has been considered as a promising technique to fabricate scaffolds for tissue engineering due to affordability, versatility and…

Selective laser melting of magnesium AZ31B alloy powder

Andrzej Pawlak, Patrycja E. Szymczyk, Tomasz Kurzynowski, Edward Chlebus

This paper aims to discuss the results of material tests conducted on specimens manufactured from AZ31 alloy powder by selective laser melting (SLM) technology. The manufactured…

Quality assurance in metal powder bed fusion via deep-learning-based image classification

Maximilian Hugo Kunkel, Andreas Gebhardt, Khumbulani Mpofu, Stephan Kallweit

This paper aims to establish a standardized, quick, reliable and cost-efficient method of quality control (QC) in metal powder bed fusion (PBFM) based on process monitoring data.

Mechanical behavior of an additively manufactured poly-carbonate specimen: tensile, flexural and mode I fracture properties

Iman Sedighi, Majid R. Ayatollahi, Bahador Bahrami, Marco A. Pérez-Martínez, Andres A. Garcia-Granada

The purpose of this paper is to investigate the effect of layer orientation on the tensile, flexural and fracture behavior of additively manufactured (AM) polycarbonate (PC…

Cranial reconstruction using prefabricated direct 3DP porous polyethylene

Pataravit Rukskul, Waraporn Suvannapruk, Jintamai Suwanprateeb

The purpose of this study is to evaluate the intra- and post-operative performance and safety of direct three dimensional printing (3DP) porous polyethylene implants in cranial…

Dimensional accuracy of FDM-printed polymer parts

Oğuzhan Emre Akbaş, Onur Hıra, Sahar Zhiani Hervan, Shahrad Samankan, Atakan Altınkaynak

This paper aims to analyze experimentally and numerically the effect of the nozzle temperature and feed rates on the dimensions of the fused deposition modeling (FDM) polymer…

A numerical prediction of residual stress for a thin-walled part with geometrical features fabricated by GMA-based additive manufacturing

Rong Li, Jun Xiong

An accurate prediction of process-induced residual stress is necessary to prevent large distortion and cracks in gas metal arc (GMA)-based additive manufactured parts, especially…

Experimental investigation on the performance and mesostructure of multi-material composite 3D-printed sand mold

Zhi Guo, Zhongde Shan, Feng Liu, Dong Du, Mengmeng Zhao

In this paper, the effects of the adhesive and curing agent contents on the tensile strength, bending strength, gas evolution and gas permeability of three-dimensional printed…

Benchmarking the complex geometric profiles, dimensional accuracy and surface analysis of printed parts

Paridhi Subbaian Kaliamoorthy, Rajkumar Subbiah, Joseph Bensingh, Abdul Kader, Sanjay Nayak

Additive manufacturing has paved a way for geometrical freedom and mass customization of new and innovative products. However, it has a few limitations in printing complex…

Fault diagnosis of FDM process based on support vector machine (SVM)

Huaqing Hu, Ketai He, Tianlin Zhong, Yili Hong

This paper aims to propose a method to diagnose fused deposition modeling (FDM) printing faults caused by the variation of temperature field and establish a fault knowledge base…

Methodology for the additive manufacture of embedded conductive paths connecting microelectromechanical sensors using conductive and flexible filaments with extrusion devices

Chuan Cao, Aitor Cazón-Martín, María Isabel Rodriguez-Ferradas, Paz Morer-Camo, Luis Matey-Muñoz, Unai Etxaniz-Sein, Hector Morcillo-Fuentes, Daniel Aguinaga-Azpiazu

The purpose of this study is to explore a methodology for connecting microelectromechanical system sensors – i.e. inertial measurement unit (IMU) – to an Arduino-based…

End lateral extension path strategy for intersection in wire and arc additive manufactured 2319 aluminum alloy

Runsheng Li, Haiou Zhang, Fusheng Dai, Cheng Huang, Guilan Wang

Large-scale aircraft parts usually with many frame features, which consist of intersections. Profile and tensile properties of junctions in wire and arc additive manufacturing…

Analysis of strain and stress concentrations in micro-lattice structures manufactured by SLM

Laura Boniotti, Stefano Foletti, Stefano Beretta, Luca Patriarca

Additive manufacturing (AM) enables the production of lightweight parts with complex shapes and small dimensions. Recent improvements in AM techniques have allowed a significant…

Effects of processing conditions on mechanical properties of PLA printed parts

Morteza Behzadnasab, Ali Akbar Yousefi, Dariush Ebrahimibagha, Farahnaz Nasiri

With recent advances in additive manufacturing (AM), polymer-based three-dimensional (3D) printers are available for relatively low cost and have found their way even in domestic…

Optimization of adhesion of poly lactic acid 3D printed onto polyethylene terephthalate woven fabrics through modelling using textile properties

Prisca Aude Eutionnat-Diffo, Yan Chen, Jinping Guan, Aurélie Cayla, Christine Campagne, Xianyi Zeng, Vincent Nierstrasz

This paper aims to evaluate and simulate the impact of the build platform temperature of the three-dimensional (3D) printer, the structure and heat transfer of textiles on the…

Vanillin-based thiol-ene systems as photoresins for optical 3D printing

Aukse Navaruckiene, Sigita Kasetaite, Jolita Ostrauskaite

This study aims to present a design and investigation of novel vanillin-based thiol-ene photocurable systems as candidate materials for optical three-dimensional printing.

The development of a conical screw-based extrusion deposition system and its application in fused deposition modeling with thermoplastic polyurethane

Jie Leng, Junjie Wu, Ning Chen, Xiang Xu, Jie Zhang

This paper aims to develop an integrated and portable desktop 3D printer using direct extruding technology to expand applied material field. Different from conventional fused…

A pilot study to assess an in-process inspection method for small diameter holes produced by direct metal laser sintering

Mariusz Deja, Dawid Zielinski

The purpose of this study is to evaluate the geometric quality of small diameter holes in parts printed by direct metal laser sintering (DMLS) technology. An in-process optical…

Biomedical photopolymers in 3D printing

Frank Alifui-Segbaya

Three-dimensional printing of acrylic-based medical devices is projected to grow exponentially despite the limitations of photopolymerization and the lack of information on the…