Rapid Prototyping Journal: Volume 25 Issue 3

Optimization of SLM process parameters for Ti6Al4V medical implants

Mahmoud Elsayed, Mootaz Ghazy, Yehia Youssef, Khamis Essa

Ti6Al4V alloy has received a great deal of attention in medical applications due to its biomechanical compatibility. However, the human bone stiffness is between 10 and 30 GPa…

Effect of ball milling on the microstructure and performances of laser clad forming Cr3C2-NiCr composites

Deyuan Lou, Jianfeng Cao, Yi Huang, Chenghu Lin, Chunlin He, Peter Bennett, Dun Liu

The original powder commonly used for laser 3D printing is atomized alloy powder. The purpose of this study is to investigate the effect of ball milling (BM) on the structure and…

Investigation on surface roughness of sintered PA2200 prototypes using Taguchi method

Naveen Kumar Mavoori, Sriram Vekatesh, Manzoor Hussain M.

The purpose of this research paper is to optimize the process parameters of selective laser sintering process, and the sintered parts of PA2200 prototypes are built with minimum…

The influence of load direction, microstructure, raster orientation on the quasi-static response of fused deposition modeling ABS

Oluwakayode Bamiduro, Gbadebo Owolabi, Mulugeta A. Haile, Jaret C. Riddick

The continual growth of additive manufacturing has increased tremendously because of its versatility, flexibility and high customization of geometric structures. However, design…

Modeling and analysis of the on-demand spare parts supply using additive manufacturing

Yuan Zhang, Stefan Jedeck, Li Yang, Lihui Bai

Despite the widespread expectation that additive manufacturing (AM) will become a disruptive technology to transform the spare parts supply chain, very limited research has been…

Measuring the effects of a laser beam on melt pool fluctuation in arc additive manufacturing

Jonas Näsström, Frank Brückner, Alexander F.H. Kaplan

The steadily growing popularity of additive manufacturing (AM) increases the demand for understanding fundamental behaviors of these processes. High-speed imaging (HSI) can be a…

Bioprinting in ophthalmology: current advances and future pathways

Nataraj Poomathi, Sunpreet Singh, Chander Prakash, Rajkumar V. Patil, P.T. Perumal, Veluchamy Amutha Barathi, Kalpattu K. Balasubramanian, Seeram Ramakrishna, N.U. Maheshwari

Bioprinting is a promising technology, which has gained a recent attention, for application in all aspects of human life and has specific advantages in different areas of…

Preparation of optimum degreasing–sintering process for metal–polymer blending low temperature 3D printing

Chuansheng Wang, Ning Cai, Dewei Zhang, Jinxiu Zhang, Tianhao Chang, Shaoming Li, Yuqi Chao, Jiquan Hu

This purpose of this study was to develop a 3D printer based on powder particle. The best degreasing and sintering process of a blank body was investigated to obtain a metal…

Convolutional neural network-based inspection of metal additive manufacturing parts

Binbin Zhang, Prakhar Jaiswal, Rahul Rai, Paul Guerrier, George Baggs

Part quality inspection is playing a critical role in the metal additive manufacturing (AM) industry. It produces a part quality analysis report which can be adopted to further…

Simulation of edge quality in fused deposition modeling

Antonio Armillotta

The purpose of this paper is to propose a method for simulating the profile of part edges as a result of the FDM process. Deviations from nominal edge shape are predicted as a…

A study on extruded filament bonding in fused filament fabrication

Ana Elisa Costa, Alexandre Ferreira da Silva, Olga Sousa Carneiro

The performance of parts produced by fused filament fabrication is directly related to the printing conditions and to the rheological phenomena inherent to the process…

Comparison of electropolished 316L steel samples manufactured by SLM and traditional technology

Edyta Lyczkowska-Widlak, Pawel Lochynski, Ginter Nawrat, Edward Chlebus

This paper aims to present the way of modifying surfaces of 316L stainless steel elements that were manufactured in the selected laser melting (SLM) technology and then subjected…

Microstructure and mechanical property of TiB reinforced Ti matrix composites fabricated by ultrasonic vibration-assisted laser engineered net shaping

Fuda Ning, Yingbin Hu, Weilong Cong

The purpose of this paper is to identify if the implementation of ultrasonic vibration in laser engineered net shaping (LENS) process can help to reduce internal weaknesses such…

Investigation on the elasto-plastic constitutive equation of parts fabricated by fused deposition modeling

Yang Xia, Ke Xu, Guojun Zheng, Rui Zou, Baojun Li, Ping Hu

The strength of printed parts by application of fused deposition modeling (FDM) has been broadly studied through experimental methods. However, constitutive behaviors of the…

Path planning method based on discontinuous grid partition algorithm of point cloud for in situ printing

Qin Lian, Xiao Li, Dichen Li, Heng Gu, Weiguo Bian, Xiaoning He

Path planning is an important part of three-dimensional (3D) printing data processing technology. This study aims to propose a new path planning method based on a discontinuous…

Characterization and optimization of laser sintering copolyamide/polyether sulfone hot-melt adhesive mixtures

Hui Zhang, Yanling Guo, Kaiyi Jiang, David Bourell, Jian Li, Yueqiang Yu

A new kind of polymer mixture (co-PA-PES) was prepared in different mass ratios, by mixing polyether sulfone hot-melt adhesive (PES-HmA) and copolyamide B249 (PA-B249). This study…

Energy absorbing capability of additive manufactured multi-material honeycomb structure

Vijayanand Rajendra Boopathy, Anantharaman Sriraman, Arumaikkannu G.

The present work aims in presenting the energy absorbing capability of different combination stacking of multiple materials, namely, Vero White and Tango Plus, under static and…

Part library-based information retrieval and inspection framework to support part maintenance using 3D printing technology

Hyungki Kim, Moohyun Cha, Byung Chul Kim, Taeyun Kim, Duhwan Mun

The purpose of this study is the use of 3D printing technology to perform maintenance on damaged parts on site. To maintain damaged parts, the user needs experience in the parts…

Development of customized orthosis for congenital deformity using additive manufacturing

Vivek C., Rajesh Ranganathan, Sivakumar Ganesan, Arivazhagan Pugalendhi, Sreekanth M.P., Sivasankar Arumugam

This paper aims to develop a customized orthosis for treating congenital talipes equinovarus (clubfoot) deformity. Complications from non-surgical treatment method such as Ponseti…

Using statistically designed experiment to optimize vacuum-assisted post-processing of binder jetted specimens

Dejan Movrin, Ognjan Luzanin, Vera Guduric

This paper aims to propose a vacuum-assisted post-processing method for use in binder jetted technology. The method is based on six key technological parameters and uses standard…