Results 21 to 30 of about 27,449 (284)
Molten pool structure and temperature flow behavior of green-laser powder bed fusion pure copper
Materials Research Express, 2022 Additive Manufacturing(AM) is an advanced direct-manufacturing technology, based on the discrete-stacking principle. Laser Powder Bed Fusion (L-PBF) is one of the most promising technologies in the field of metal AM, with the characteristics of ...
Pan Lu +7 more
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Machine learning–aided real-time detection of keyhole pore generation in laser powder bed fusion
Science, 2023 Porosity defects are currently a major factor that hinders the widespread adoption of laser-based metal additive manufacturing technologies. One common porosity occurs when an unstable vapor depression zone (keyhole) forms because of excess laser energy ...
Zhongshu Ren +9 more
semanticscholar +1 more source
Microstructure and Hardness of Ti-6242 Alloy Fabricated by Electron Beam Powder Bed Fusion and Laser Powder Bed Fusion Methods [PDF]
Journal of Advanced Materials in EngineeringIntroduction and Objectives: Ti-6Al-2Sn-4Zr-2Mo (Ti6242) alloy is a near-alpha titanium alloy widely used in biomedical, automobile, and aviation industries, known for having a high service temperature.
Amir Hossein Emami Ghalehghasemi +4 more
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Laser Powder Bed Fusion of Chromium Bronze Using Recycled Powder [PDF]
Materials, 2021 Laser powder bed fusion (LPBF) of Cu-0.5Cr was carried out using recycled powder taken out from the LPBF machine after previous printing. Various volumetric defects characterized the powder wherein particle size distribution was the same as virgin powder. Using recycled powder resulted in extra spherical pore formation after the LPBF process.
Ivan A. Pelevin +6 more
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Laser Powder Bed Fusion of Metal Coated Copper Powders
Materials, 2020 Laser powder bed fusion (L-PBF) of copper alloys with high copper content is difficult due to the high infrared reflectivity and thermal conductivity of these alloys. In this study a simple and scalable method for coating copper powder with tin and nickel is presented, and suggested as an alloying strategy for such alloys.
Viktor Lindström +6 more
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Laser powder bed fusion additive manufacturing of NiTi shape memory alloys: a review
International Journal of Extreme Manufacturing, 2023 NiTi alloys have drawn significant attentions in biomedical and aerospace fields due to their unique shape memory effect (SME), superelasticity (SE), damping characteristics, high corrosion resistance, and good biocompatibility.
Shuaishuai Wei +8 more
semanticscholar +1 more source
Dimensionless process development for lattice structure design in laser powder bed fusion
Materials & Design, 2020 Laser powder bed fusion enables the fabrication of complex components such as thin-walled cellular structures including lattice or honeycomb structures.
Alexander Großmann +7 more
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Microstructural aspects of additive manufacturing of AlLi alloys with high Li content
Materials & Design, 2021 Laser assisted powder bed fusion using a binary AlLi alloy with high Li content (Al–14 at.%Li) has been performed for the first time. The aim was to generate microstructures with extended concentration range of AlLi alloys in which the formation of the
Dongmei Liu +6 more
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Micro-Twinning in IN738LC Manufactured with Laser Powder Bed Fusion [PDF]
Materials, 2023 Components manufactured with Metal Laser Powder Bed Fusion (PBF-LB/M) are built in a layerwise fashion. The PBF-LB/M build orientation affects grain morphology and orientation. Depending on the build orientation, microstructures from equiaxed to textured grains can develop.
Sandra Megahed +6 more
openaire +3 more sources
Nature Communications, 2023 This study introduces a method that is applicable across various powder materials to predict process conditions that yield a product with a relative density greater than 98% by laser powder bed fusion.
Jaemin Wang +4 more
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