Related references
Note: Only part of the references are listed.
Article
Optics
Zifa Xu et al.
Summary: This study proposed a hybrid technique of continuous-wave laser deposition and pulsed laser finishing for repairing 30CrMnSiNi2A ultra-high strength steel. By comparing the microstructure and mechanical properties of different parts, it was found that laser finishing can further improve the surface properties of repaired parts, including surface roughness, micro-hardness, and wear resistance.
OPTICS AND LASERS IN ENGINEERING
(2023)
Review
Chemistry, Physical
Alessandra Martucci et al.
Summary: The high strength-to-weight ratio, corrosion resistance and conductivity of aluminium alloys have increased their popularity in laser-based powder bed fusion production. However, the challenges of solidification shrinkage, oxidation, laser reflectivity and powder flowability hinder their processing in additive manufacturing. Therefore, the development of new tailored aluminium alloys is necessary.
Article
Optics
Chaojiang Li et al.
Summary: AM metal parts often have defects and rough surfaces, and post-treatment processes are required for materials with corrosion resistance requirements. Laser polishing is an efficient and environmentally friendly technique, but research on its effects on surface morphology, defect formation, and surface characteristics of AM parts is lacking.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yufan Liu et al.
Summary: A hybrid laser polishing technique combining pulsed laser and continuous wave laser was applied to polish the surface of LDED Inconel 718 samples. The results showed that the remelted layer thickness increased to 50 mm while preserving the columnar microstructure, and the grain size decreased. The wear rate at 25°C decreased by 70.9%, and the average coefficient of friction decreased from 0.42 to 0.29 after laser polishing. The enhancement in wear resistance was attributed to the formation of small-sized and homogeneously distributed fine grains with low angle boundaries.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Industrial
Yufan Liu et al.
Summary: In this study, a hybrid laser polishing technology was used to improve the surface quality of Inconel 718 alloy components. The results showed that the hybrid laser polishing process significantly improved the surface quality by refining the grains and secondary phases, and increasing the surface hardness.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. Martucci et al.
Summary: Powder Bed Fusion-Laser Beam/Metals (PBF-LB/M) is a promising additive manufacturing process for producing functional components with complex shapes. However, the high thermal gradient and thermally induced stresses during the layer-by-layer scanning and high cooling rates can lead to undesirable cracking and delamination. This study aims to investigate strategies for processing non-standard compositions and found that the synergistic use of appropriate process parameters and support structures can prevent cracking and achieve fully dense specimens, even without platform heating.
MATERIALS & DESIGN
(2022)
Review
Engineering, Multidisciplinary
Andre Mussatto
Summary: Additive manufacturing has the potential to create high-quality and complex components. Multi-material laser-powder bed fusion is a promising approach that combines multiple materials to manufacture multi-material components for new design possibilities and tailored properties. This work provides an overview of the architecture, construction, and applications of existing multi-material delivery systems for multi-material laser-powder bed fusion. It discusses the challenges in material deposition and processing and explores the potentials and future perspectives of multi-material laser-powder bed fusion.
RESULTS IN ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Ziqin Pan et al.
Summary: This study aimed to improve the microstructures and mechanical properties of Ti-6Al-4V alloys produced via plasma arc additive manufacturing (PAAM) by implementing interpass micro-rolling. The results showed that interpass micro-rolling significantly reduced defects and improved the mechanical properties of the PAAMed samples. The rolled samples exhibited finer crystals and lower mechanical property anisotropy compared to the non-rolled samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Industrial
Jitka Metelkova et al.
Summary: Insufficient surface quality is a common issue in laser powder bed fusion (LPBF), often requiring expensive post-processing to meet industrial requirements. This work presents a novel strategy to improve the quality of up-facing inclined surfaces using a dual-laser setup. By selectively removing powder from inclined surfaces with shock waves generated by a nanosecond pulsed laser, followed by remelting with a continuous wave laser or pulsed laser, surface quality can be significantly improved for inclinations up to 45 degrees in maraging steel 300 parts.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Industrial
Yuying Yang et al.
Summary: A novel hybrid approach combining DED and thermal milling is developed for producing complex structural parts with ideal dimensional accuracy. The research findings show that 316L SS specimens exhibit high microhardness and tensile strength under optimal process parameters. The tensile strength values obtained from the hybrid DED and thermal milling process are significantly higher than those from other manufacturing methods.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Industrial
Shuai Zhang et al.
Summary: The study found that milling-induced compressive stress played the biggest role in reducing residual stress, induced by burnishing between the cutter and the milling surface. This has significant implications for understanding the additive-subtractive synergistic effects in HWAAMS.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
John Robinson et al.
Summary: This study introduces a novel Cu-W-Ag microporous architecture with strong antiviral behavior against SARS-CoV-2, developed using additive manufacturing and surrogate modeling. The research demonstrates the potential for rapid manufacturing of antiviral materials to combat the COVID-19 pandemic.
RAPID PROTOTYPING JOURNAL
(2021)
Article
Engineering, Mechanical
Yuying Yang et al.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2019)
Article
Automation & Control Systems
Wei Du et al.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2018)
Article
Materials Science, Multidisciplinary
Lei Yan et al.
Article
Engineering, Industrial
Masakazu Soshi et al.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2017)
Proceedings Paper
Engineering, Manufacturing
Wojciech S. Gora et al.
LASER ASSISTED NET SHAPE ENGINEERING 9 INTERNATIONAL CONFERENCE ON PHOTONIC TECHNOLOGIES PROCEEDINGS OF THE LANE 2016
(2016)
Article
Engineering, Mechanical
Frank Liou et al.
RAPID PROTOTYPING JOURNAL
(2007)
Article
Engineering, Industrial
JY Jeng et al.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2001)
