Results 311 to 320 of about 41,061 (356)

Selective laser sintering II. Sintering multilayer refractory composites

Powder Metallurgy and Metal Ceramics, 1998
Processes are considered in the selective laser sintering of multilayer composites based on TiN’MTiB2 refractory powder mixtures, hard-alloy material of TN20 type, and a steel substrate. Selectivity of the process, which is expressed in the behavior of the multilayer composite material in sintering regimes that differ in laser power input, is ...
A. V. Ragulya, V. P. Stetsenko, V. M. Vereshchak, V. P. Klimenko, V. V. Skorokhod   +4 more
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Selective laser sintering: Recent advances

PICALO 2010: 4th Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2010
Selective Laser Sintering (SLS) is a well-known technique for rapid prototyping, rapid manufacturing and rapid tooling and is fast gaining acceptance in various areas of applications such as aerospace, moulding and biomedical. SLS has gone through vast changes since its introduction more than two decades back. The process has become a leading technique
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Automatic Laser Control System for Selective Laser Sintering

IEEE Transactions on Industrial Informatics, 2019
The quality of SLS products is dramatically degraded by excessive temperature gradients in the thermal profile of the powder bed. Thermal gradients in the presintering temperature, which is defined as powder temperature before laser scans, are inevitable in commercial SLS machines due to various reasons.
Lixun Zhang, Timothy Phillips, Aloysius Mok, Daniel Moser, Joseph Beaman   +4 more
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Composite Micropowders for Selective Laser Sintering

Metallurgist, 2016
A method is proposed for obtaining composite micropowders. The technology includes the atomization of liquid metal by a gas jet and modification of the micropowder in a planetary mixer in the presence of carbon nanopowder. The particles of the composite micropowders produced by this method are close to spherical in shape.
P. A. Lykov, S. B. Sapozhnikov, I. S. Shulev, D. A. Zherebtsov, R. R. Abdrakhimov   +4 more
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Selective laser sintering in biomedical manufacturing

2020
Selective laser sintering (SLS) has been proved to be a reliable and robust additive manufacturing technology for producing different categories of biomedical devices. The SLS system has a great advantage of being tailored to a wide range of requirements through the adjustment of laser and process parameters.
Riza, Syed Haider, Masood, Syed Hasan, Rashid, Rizwan Abdul Rahman, Chandra, Sanjeet   +3 more
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The Selective Laser Sintering of Polycarbonate

CIRP Annals, 1996
Abstract This paper investigates thermal modelling of the selective laser sintering process for amorphous polycarbonate powders. The aim is to develop a simulation for process accuracy and control which are key areas of developement for the new layer manufacturing rapid prototyping technologies.
M. Berzins, T.H.C. Childs, G.R. Ryder
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Indirect selective laser sintering of ceramics

2021
Ceramics with intricate geometries are useful in a wide range of technical applications, but current manufacturing techniques limit the geometric complexity. Additive manufacturing (AM) is a viable approach to surmount these limitations and produce complex tailored structures.
Sassaman, Douglas Maxwell, 0000-0001-6102-3204   +1 more
openaire   +2 more sources

Selective laser sintering of compacted powders

Powder Metallurgy and Metal Ceramics, 1998
The selective laser sintering of preliminarily compacted powders was investigated. Depths of sintering lower than those with freely poured powders were attained. This has a negative effect on the production of multilayered articles. The main disadvantage of the process, however, was the difficulty in separating the article from the unsintered compacted
N. K. Tolochko, K. I. Arshchinov, S. Zh. Mozzharov, N. V. Sobolenko, Yu. V. Khlopkov, I. A. Yadroitsev   +5 more
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Selective laser sintering of microwave components

2005 European Microwave Conference, 2005
This paper investigates the fabrication of functional microwave components using the selective laser sintering process to sinter conventional screen printing inks. This technique has the potential to metallize low-temperature substrates by controlling the laser parameters.
E. Kinzel, H. Sigmarsson, null Xianfan Xu, W. Chappell   +3 more
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SELECTIVE LASER SINTERING OF POLYAMIDE12 COMPOSITES

2017
The composites of CF/PA12 were prepared by Selective Laser Sintering, which is one kind of Additive Manufacturing. The thermal influence of carbon fiber (CF) on the PA12 in the laser sintering process was assessed by physical experiments and a three dimensional simulation model.
Mengxue Yan, Xiaoyong Tian, Gang Peng
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