Regularities of Structure Formation, Morphology and Properties of Pure Copper Surface Layers Under Intensive Thermal Impact During Plasma Cutting

被引：0
|
作者：
A. V. Grinenko
A. M. Cheremnov
A. V. Chumaevskii
A. V. Nikolaeva
A. O. Panfilov
E. O. Knyazhev
A. V. Gusarova
V. A. Beloborodov
P. S. Sokolov
D. A. Gurianov
V. E. Rubtsov
E. A. Kolubaev
机构：
[1] ITS-Siberia LLC,
[2] Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences,undefined
来源：
Russian Physics Journal | 2023年 / 66卷
关键词：
pure copper; plasma cutting; structure degradation; metal flow; oxidation; softening of cut area;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The influence of a plasma jet on pure copper surfaces of different thicknesses is discussed. It is shown that during cutting, due to an intensive removal of molten metal from the cutting zone, a heat affected zone of large thickness and a fusion zone are mainly formed. Plasma cutting of copper sheets, especially those of large thicknesses, is complicated by the dynamic processes of melting, flow and crystallization of the metal displaced from the cavity cut by the gas jet. Inhomogeneities in the metal flow from the cutting zone, a high rate of heat removal and crystallization cause the formation of beading in the lower part of the cut, and its size increases significantly with the thickness of the cut parts.
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页码：940 / 946
页数：6
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