Multimodal-based weld reinforcement monitoring system for wire arc additive manufacturing

Shen, Bin; Lu, Jun; Wang, Yiming; Chen, Dongli; Han, Jing; Zhang, Yi; Zhao, Zhuang

doi:10.1016/j.jmrt.2022.07.086

Cited by 26 publications

(2 citation statements)

References 25 publications

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“…Julia et al successfully modified magnesium implants through a high-pressure anodic oxidation process to obtain biodegradable magnesium-based implants. They are a new type of biomaterial with potential for dental applications and have the potential to make dental metal medical devices [ 110 ]. Zhang et al evaluated magnesium alloys created using SLM technology to implant the fabricating materials for manufacturing porous structural implants, and the mechanical properties of the composite porous implants met the requirements of living for edentulous patients [ 111 ].…”

Section: Three-dimensional Printing Materialsmentioning

confidence: 99%

Dental Materials Applied to 3D and 4D Printing Technologies: A Review

Cai

et al. 2023

Polymers

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As computer-aided design and computer-aided manufacturing (CAD/CAM) technologies have matured, three-dimensional (3D) printing materials suitable for dentistry have attracted considerable research interest, owing to their high efficiency and low cost for clinical treatment. Three-dimensional printing technology, also known as additive manufacturing, has developed rapidly over the last forty years, with gradual application in various fields from industry to dental sciences. Four-dimensional (4D) printing, defined as the fabrication of complex spontaneous structures that change over time in response to external stimuli in expected ways, includes the increasingly popular bioprinting. Existing 3D printing materials have varied characteristics and scopes of application; therefore, categorization is required. This review aims to classify, summarize, and discuss dental materials for 3D printing and 4D printing from a clinical perspective. Based on these, this review describes four major materials, i.e., polymers, metals, ceramics, and biomaterials. The manufacturing process of 3D printing and 4D printing materials, their characteristics, applicable printing technologies, and clinical application scope are described in detail. Furthermore, the development of composite materials for 3D printing is the main focus of future research, as combining multiple materials can improve the materials’ properties. Updates in material sciences play important roles in dentistry; hence, the emergence of newer materials are expected to promote further innovations in dentistry.

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Section: Three-dimensional Printing Materialsmentioning

confidence: 99%

Dental Materials Applied to 3D and 4D Printing Technologies: A Review

Cai

et al. 2023

Polymers

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“…These challenges encompass issues such as surface formation, dimension tolerance, mechanical properties, hardness, multi-thermal impact, metallurgy, and microstructure properties. Notably, these challenges, particularly those related to surface quality, may hinder the widespread application of WAAM in manufacturing high-quality components [8,9]. Additionally, the arc characteristics of WAAM and its extended process cycle time present challenges for implementing an automatic monitoring system to detect defects and non-conformances [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Processes and Process Variables for WAAM – Geometry of Deposited Bead

Li,

Al-Hallis,

Al-Chafey

2024

Advances in Transdisciplinary Engineering

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Wire Arc Additive Manufacturing (WAAM) is developing rapidly in recent years due to its advantages, such as higher productivity, lower cost, acceptable quality, and the availability of advanced welding processes. Cold Metal Transfer (CMT), as the most well-known Gas Metal Arc Welding (GMAW) process, is widely used in WAAM. The uniqueness of CMT lies in minimizing the heat input of the process. However, there is a drawback to the lower heat input, impacting the quality of the geometry of the welding bead, sharp transitions at the weld toe, inclusions, etc., particularly for higher alloyed steel, e.g., tool steel. In this study, two processes were employed: CMT and Pulse Multi Control (PMC). Two types of shielding gases were used, namely 2% CO2 + 98% Ar and 20% CO2 + 80% Ar. Two levels of wire feed speed were selected: high and low levels. A full-fraction factorial experimental matrix was created, and bead-on-plate samples were produced with different GMAW processes, i.e., CMT and PMC. The geometry of the bead-on-plate, including penetration, bead width and height, and toe angle, was evaluated and analyzed. A correlation between the process factors (shielding gas, type of process, and wire feed speed) and the geometry of the bead was analyzed and determined. A protocol is proposed based on the study results for the selection of WAAM processes.

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