電子ビーム溶接溶込み過程のミクロ的観察 : 電子ビーム溶接の溶込み深さに関する研究(第 7 報)

概要

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The melting process of solid metal by an electron beam during the electron beam welding under steady state was investigated and discussed from the microscopic point of view. The melting process progresses not continuously, but intermittently, which contains three kinds of occurrence frequency, that is, a few kHz component, the ripple frequency of the high voltage power source and the intrinsic melting frequency depending upon the electron beam property (power density distribution). In the conventional high power electron beam welding, however, the welding phenomena are influenced strongly by both the ripple variation of the power source and the intrinsic melting process. The spiking phenomenon depends not only the intermittent melting process but also the state of molten metal in the beam hole and inhomogeneity of the metal. The possibility of suppression of the spiking phenomenon was also discussed.
社団法人溶接学会の論文
1981-11-05