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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publicou 4 edições por ano

ISSN Imprimir: 1093-3611

ISSN On-line: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

Indexed in

2-D AND 3-D FLUIDYNAMIC AND PLASMA CHARACTERIZATION OF DC TRANSFERRED ARC PLASMA TORCHES FOR METAL CUTTING

Volume 10, Edição 3, 2006, pp. 379-392
DOI: 10.1615/HighTempMatProc.v10.i3.30
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RESUMO

The aim of this work is to investigate by means of a 2-D and 3-D FLUENT® based numerical model the behaviour of a transferred arc plasma torch recently developed within Cebora S.p.A. for the cutting of a metallic substrate material. Flow and heat transfer equations are solved with coupled electromagnetic ones, for LTE optically thin plasma, while turbulence phenomena are taken into account by means of a k-ε Realizable model. Simulations include a prediction of the thermal behaviour of the hafnium insert of the cathode and trajectories of hafnium oxide particles emitted from it and the efficiency of nozzle cooling systems in various operating conditions including gas mixtures (O2/Air, H35/N2, Air/Air) fitted for various dimension and type of the cutting material. Results obtained from the simulations are compared with experimental measurements in order to perform a validation of the model in terms of pressure in different regions of the device, gas mass flow rate and nozzle temperature during the processing phase. For this purpose a modified plasma torch has been designed and used with realistic cutting conditions.

CITADO POR
  1. Colombo Vittorio, Concetti Alessia, Ghedini Emanuele, Dallavalle Silvano, Vancini Mauro, High-Speed Imaging of Pilot Arcing and Piercing in PAC, IEEE Transactions on Plasma Science, 36, 4, 2008. Crossref

  2. Colombo V., Concetti A., Ghedini E., Dallavalle S., Vancini M., Understanding Plasma Fluid Dynamics Inside Plasma Torches Through Advanced Modeling, IEEE Transactions on Plasma Science, 36, 2, 2008. Crossref

  3. Colombo V, Concetti A, Ghedini E, Dallavalle S, Vancini M, High-speed imaging in plasma arc cutting: a review and new developments, Plasma Sources Science and Technology, 18, 2, 2009. Crossref

  4. Colombo V, Concetti A, Ghedini E, Dallavalle S, Design oriented simulation for plasma arc cutting consumables and experimental validation of results, Plasma Sources Science and Technology, 20, 3, 2011. Crossref

  5. Boselli M, Colombo V, Ghedini E, Gherardi M, Sanibondi P, Two-temperature modelling and optical emission spectroscopy of a constant current plasma arc welding process, Journal of Physics D: Applied Physics, 46, 22, 2013. Crossref

  6. Trelles Juan Pablo, Modirkhazeni S. Mahnaz, Variational multiscale method for nonequilibrium plasma flows, Computer Methods in Applied Mechanics and Engineering, 282, 2014. Crossref

  7. Colombo V., Concetti A., Ghedini E., Dallavalle S., Vancini M., Understanding plasma fluid dynamics inside plasma torches through advanced modeling, 2007 16th IEEE International Pulsed Power Conference, 2007. Crossref

  8. Colombo V., Ghedini E., Dallavalle S., Vancini M., Understanding Plasma Fluid Dynamics Inside Plasma Torches Through Advanced Modeling, 2007 IEEE 34th International Conference on Plasma Science (ICOPS), 2007. Crossref

  9. Colombo Vittorio, Concetti Alessia, Ghedini Emanuele, Three-Dimensional Design-Oriented Simulation of PAC Torches, IEEE Transactions on Plasma Science, 39, 11, 2011. Crossref

  10. Boselli M., Colombo V., Ghedini E., Gherardi M., Rotundo F., Sanibondi P., Two-temperature modelling and optical emission spectroscopy of a constant current plasma arc welding process, 2013 19th IEEE Pulsed Power Conference (PPC), 2013. Crossref

  11. Trelles Juan Pablo, Nonequilibrium Phenomena in (Quasi-)thermal Plasma Flows, Plasma Chemistry and Plasma Processing, 40, 3, 2020. Crossref

  12. Colombo V., Concetti A., Ghedini E., Rotundo F., Sanibondi P., Boselli M., Dallavalle S., Gherardi M., Nemchinsky V., Vancini M., Advances in Plasma Arc Cutting Technology: The Experimental Part of an Integrated Approach, Plasma Chemistry and Plasma Processing, 32, 3, 2012. Crossref

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