Rapid Prototyping Journal: Volume 23 Issue 4

Sequential additive manufacturing: automatic manipulation of 3D printed parts

Rafael Vidal Aroca, Carlos E.H. Ventura, Igor De Mello, Tatiana F.P.A.T. Pazelli

This paper aims to present a monitoring system and the usage of a robotic arm to remove finished parts of a three-dimensional (3D) printer build plate, enabling 3D printers to…

Efficient design optimization of variable-density cellular structures for additive manufacturing: theory and experimental validation

Lin Cheng, Pu Zhang, Emre Biyikli, Jiaxi Bai, Joshua Robbins, Albert To

The purpose of the paper is to propose a homogenization-based topology optimization method to optimize the design of variable-density cellular structure, in order to achieve…

Influence of CT parameters on STL model accuracy

Maureen van Eijnatten, Ferco Henricus Berger, Pim de Graaf, Juha Koivisto, Tymour Forouzanfar, Jan Wolff

Additive manufactured (AM) skull models are increasingly used to plan complex surgical cases and design custom implants. The accuracy of such constructs depends on the standard…

Edge quality in fused deposition modeling: II. experimental verification

Antonio Armillotta, Stefano Bianchi, Marco Cavallaro, Stefania Minnella

This paper aims to provide an experimental evaluation of geometric errors on the edges of parts manufactured by the fused deposition modeling (FDM) process.

Investigation of separation force for constrained-surface stereolithography process from mechanics perspective

Hang Ye, Abhishek Venketeswaran, Sonjoy Das, Chi Zhou

One of the major concerns of the constrained-surface stereolithography (SLA) process is that the built-up part may break because of the force resulting from the pulling-up…

An experimental study to investigate the micro-stereolithography tools for micro injection molding

Reza Gheisari, Paulo Bártolo, Nicholas Goddard, Marco Andre das Neves Domingos

The use of microstereolithography (μSL) parts as micro-injection molding (μIM) tools greatly reduces the time and cost to product and offers unique solutions for complex design…

Net-shape manufacturing using hybrid selective laser melting/hot isostatic pressing

Hany Hassanin, Khamis Essa, Chunlei Qiu, Ali M. Abdelhafeez, Nicholas J.E. Adkins, Moataz M. Attallah

The purpose of this study is to develop a manufacturing technology using hybrid selective laser melting/hot isostatic pressing (SLM/HIP) process to produce full density net-shape…

On the use of high viscosity polymers in the fused filament fabrication process

Muhammad Hussam Khaliq, Rui Gomes, Célio Fernandes, João Nóbrega, Olga Sousa Carneiro, Luis Lima Ferrás

This work aims to provide additional insights regarding the practicability of using conventional materials in the fused filament fabrication (FFF) process.

Experimental investigation for dynamic stiffness and dimensional accuracy of FDM manufactured part using IV-Optimal response surface design

Omar Ahmed Mohamed, Syed Hasan Masood, Jahar Lal Bhowmik

Fused deposition modeling (FDM) has become an increasingly important process among the available additive manufacturing technologies in various industries. Although there are many…

Selective laser melting of nickel powder

Chor Yen Yap, Hongyi Kenneth Tan, Zhenglin Du, Chee Kai Chua, Zhili Dong

Selective laser melting (SLM) is an additive manufacturing technology that is gaining industrial and research interest as it can directly fabricate near full density metallic…

Effect of laser processing parameters on mechanical properties of porous tantalum fabricated by laser multi-layer micro-cladding

Changjun Chen, Yang Li, Min Zhang, Xiaonan Wang, Chao Zhang, Hemin Jing

Additive manufacturing (AM), a method used in the nuclear, space and racing industries, allows the creation of customized titanium alloy scaffolds with highly defined external…

A functional methodology on the manufacturing of customized polymeric cranial prostheses from CAT using SPIF

Gabriel Centeno, Domingo Morales-Palma, Borja Gonzalez-Perez-Somarriba, Isabel Bagudanch, Juan José Egea-Guerrero, Luis Miguel Gonzalez-Perez, María Luisa García-Romeu, Carpóforo Vallellano

This paper aims to propose a functional methodology to produce cranial prostheses in polymeric sheet. Within the scope of rapid prototyping technologies, the single-point…

Direct global editing of STL mesh model for product design and rapid prototyping

N. Adhikary, B. Gurumoorthy

This paper aims to propose an automatic and direct method to manipulate global parameters of the object for prototyping and simulation, given an STL mesh model of a thin-walled…

Evaluating the deposition quality of parts produced by an open-source 3D printer

Leonardo Santana, Carlos Henrique Ahrens, Aurélio da Costa Sabino Netto, Cassiano Bonin

The purpose of this study is to analyze the factors affecting the deposition of parts manufactured in poly(lactic acid) with variations in print speed and extrusion temperature…

Synthesis and properties of modified PBT for FDM

Shiqing Cao, Dandan Yu, Weilan Xue, Zuoxiang Zeng, Wanyu Zhu

The purpose of this paper is to prepare a new modified polybutylene terephalate (MPBT) for fused deposition modeling (FDM) to increase the variety of materials compatible with…

Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

Jason T. Cantrell, Sean Rohde, David Damiani, Rishi Gurnani, Luke DiSandro, Josh Anton, Andie Young, Alex Jerez, Douglas Steinbach, Calvin Kroese, Peter G. Ifju

This paper aims to present the methodology and results of the experimental characterization of three-dimensional (3D) printed acrylonitrile butadiene styrene (ABS) and…

Improvement of FDM parts’ surface quality using optimized neural networks – medical case studies

Ebrahim Vahabli, Sadegh Rahmati

To improve the quality of the additive manufacturing (AM) products, it is necessary to estimate surface roughness distribution in advance. Although surface roughness estimation…