Results 41 to 50 of about 27,449 (284)

In Situ Monitoring Systems of The SLM Process: On the Need to Develop Machine Learning Models for Data Processing

Crystals, 2020
In recent years, technological advancements have led to the industrialization of the laser powder bed fusion process. Despite all of the advancements, quality assurance, reliability, and lack of repeatability of the laser powder bed fusion process still ...
Pinku Yadav, Olivier Rigo, Corinne Arvieu, Emilie Le Guen, Eric Lacoste   +4 more
doaj   +1 more source

A Review of Spatter in Laser Powder Bed Fusion Additive Manufacturing: In Situ Detection, Generation, Effects, and Countermeasures

Micromachines, 2022
Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed fusion (L-PBF) additive manufacturing. Spatter behavior has an intrinsic correlation with the forming quality in L-PBF because it leads to metallurgical defects and the ...
Zheng Li, Hao Li, Jie Yin, Yan Li, Zheng Nie, Xiangyou Li, D. You, K. Guan, W. Duan, Longchao Cao, Dengzhi Wang, L. Ke, Yang Liu, Ping Zhao, Lin Wang, K. Zhu, Zhengwen Zhang, Liang Gao, Liang Hao   +18 more
semanticscholar   +1 more source

Development of Control Systems for Laser Powder Bed Fusion

The International Journal of Advanced Manufacturing Technology, 2023
Abstract This article aims to highlight the development of an intermittent controller designed to compensate and rectify the lack of fusion (LoF) zones that induce during the LPBF process. The initial step involved the utilization of the Self-Organizing Map (SOM) algorithm to identify the location of LoF defects.
Katayoon Taherkhani, Gerd Cantzler, Christopher Eischer, Ehsan Toyserkani   +3 more
openaire   +1 more source

Biodegradable magnesium alloy WE43 porous scaffolds fabricated by laser powder bed fusion for orthopedic applications: Process optimization, in vitro and in vivo investigation

Bioactive Materials, 2022
Laser powder bed fusion (L-PBF) of magnesium (Mg) alloy porous scaffolds is expected to solve the dual challenges from customized structures and biodegradable functions required for repairing bone defects.
Jinge Liu, Bingchun Liu, Shuyuan Min, Bangzhao Yin, Bo-Ji Peng, Zishi Yu, Caimei Wang, Xiaolin Ma, Peng Wen, Yun Tian, Yufeng Zheng   +10 more
semanticscholar   +1 more source

The interplay between vapour, liquid, and solid phases in laser powder bed fusion

Nature Communications, 2022
The capability of producing complex, high performance metal parts on demand has established laser powder bed fusion (LPBF) as a promising additive manufacturing technology, yet deeper understanding of the laser-material interaction is crucial to exploit ...
I. Bitharas, N. Parab, C. Zhao, T. Sun, A. Rollett, A. Moore   +5 more
semanticscholar   +1 more source

Additive manufacturing technology for porous metal implant applications and triple minimal surface structures: A review

Bioactive Materials, 2019
Recently, the fabrication methods of orthopedic implants and devices have been greatly developed. Additive manufacturing technology allows the production of complex structures with bio-mimicry features, and has the potential to overcome the limitations ...
Li Yuan, Songlin Ding, Cuie Wen
doaj   +1 more source

Ensemble learning based defect detection of laser sintering

IET Optoelectronics, 2023
In rapid development, Selective Laser Sintering (SLS) creates prototypes by processing industrial materials, for example, polymers. Such materials are usually in powder form and fused by a laser beam.
Junyi Xin, Muhammad Faheem, Qasim Umer, Muhammad Tausif, M. Waqar Ashraf   +4 more
doaj   +1 more source

Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability

Virtual and Physical Prototyping
Laser powder bed fusion (LPBF) of titanium alloys has demonstrated significant potential in high-value-added fields such as aerospace and biomedical. However, the highly non-stationary thermal history and inherent limitations of the LPBF process lead to ...
Chenbing Ni, Junjie Zhu, Baoguo Zhang, Kai An, Youqiang Wang, Dejian Liu, Wei Lu, Lida Zhu, Changfu Liu   +8 more
semanticscholar   +1 more source

Understanding keyhole induced-porosities in laser powder bed fusion of aluminum and elimination strategy

International journal of machine tools & manufacture, 2022
Laser powder bed fusion (LPBF) technology has the potential to revolutionize the fabrication of complex metal components in the aerospace, medical, and automotive industries. However, keyhole pores may be induced during the rapid laser-metal interaction (
Liping Guo, Hongze Wang, Hanjie Liu, Yuze Huang, Qianglong Wei, Chu Lun Alex Leung, Yi Wu, Haowei Wang   +7 more
semanticscholar   +1 more source

Research Progress on Surface Polishing Technology of Powder Bed Fusion Titanium Alloy [PDF]

Cailiao Baohu
Powder bed fusion titanium alloys， as an important metallic material， are widely used in aerospace， medical devices and automotive industries.However， due to their unique material properties and processing methods， surface quality and performance ...
ZHOU Di, WU Songquan, LI Ziyang, LIU Lei, YANG Yi, WANG Hao, HUANG Aijun
doaj   +1 more source