3.8 Article

HEAT TRANSFER BETWEEN A PLASMA JET AND A METAL SURFACE IN A CUT CAVITY

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SPRINGER
DOI: 10.1007/s10891-015-1331-2

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metal cutting; plasmatron; electric arc

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Investigations are presented of the formation of a plasma jet and of the current-density and heat-flux distributions in the process of metal cutting along the cut cavity with direct and reverse polarities of the plasmatron connection. The study of the specific features of heat transfer of the arc with the surface of the cut cavity was carried out on the basis of the developed plasma unit which makes it possible to model the technological process of separating metal cutting. A sectional cut model is proposed which can be used to work out and optimize the methods of determination of cutting parameters.

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