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Open Access

ISSN 2689-5846

© 2022 by the authors; CC BY 4.0 licence

Recent Progress in Materials , Volume 4 , Issue 1 (2022)

Pages: 133

Published: April 2022

(This book is a printed edition that was published in  Recent Progress in Materials)

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Cover Story: This paper demonstrates a novel microfluidic device fabrication technique by combining a 3D printing and Polydimethylsiloxane (PDMS) process. A Digital Light Processing (DLP) 3D printer is used to fabricate both a master mold for the PDMS process and a substrate containing pneumatic ports. A microfluidic device with complex structures such as a taper structure was successfully fabricated and demonstrated.View this paper

Volume 4,Issue 1

Open Access Original Research

Automated Quality and Process Control for Additive Manufacturing using Deep Convolutional Neural Networks

Received: 24 November 2021;  Published: 28 February 2022;  doi: 10.21926/rpm.2201005

Abstract

Additive Manufacturing (AM) is a crucial component of the smart manufacturing industry. In this paper, we propose an automated quality grading system for the fused deposition modeling (FDM) process as one of the major AM processes using a developed real-time deep convolutional neural network (CNN) model. The CNN model is trained offline using the images of the internal and surface defects in the layer-by-layer deposition of materials and tested online by studying the performance of d [...]

Open Access Review

Material Challenges and Opportunities in 3D Printing for Hip Implant Applications

Received: 16 November 2021;  Published: 23 February 2022;  doi: 10.21926/rpm.2201004

Abstract

There is a current need for tissue and organ repairs, replacement, and regeneration for patients who suffer from diseased or damaged tissues or organs. This situation is continuously on the rise and the supply of this form of therapy does not meet the patients demand mostly due to lack of donors and biocompatibility issues which causes immune system rejection of the implants. To succeed through these limitations, researchers are currently investigating the use of scaffolds as another [...]

Open Access Research Article

Life Cycle Assessment (LCA) of Wood Flour and Pellets for Manufacturing Wood-Plastic Composites (WPCs)

Received: 07 December 2021;  Published: 09 February 2022;  doi: 10.21926/rpm.2201003

Abstract

This study is expanding the previous studies that were focused on the material properties and transportation costs of the two alternative feedstocks for manufacturing wood-plastic composites (WPCs): wood flour and pellets. Besides the material properties and cost analysis, life-cycle assessment (LCA) is equally important to assess the environmental impacts of these two alternative wood feedstocks to manufacture WPCs and gain the knowledge of influences from the manufacturing and tran [...]

Open Access Original Research

Fabrication and Demonstration of a 3D-printing/PDMS Integrated Microfluidic Device

Received: 21 October 2021;  Published: 25 January 2022;  doi: 10.21926/rpm.2201002

Abstract

3D printing is an attractive method to fabricate microfluidic devices due to (1) its fast and simple process without specialized equipment and cleanroom environment, and (2) its capability to create complex 3D structures. Combined with Polydimethylsiloxane (PDMS), it can be used to develop various microfluidic devices taking advantage of both 3D printing and PDMS. In this paper, we investigated a Digital Light Processing (DLP) 3D printer to fabricate 3D printing/PDMS integrated micro [...]

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2021

Received: 05 January 2022;  Published: 06 January 2022;  doi: 10.21926/rpm.2201001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2021. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download [...]
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