OSCILLATIONS OF THE KEYHOLE IN PENETRATION LASER-BEAM WELDING

被引：106

作者：

KLEIN, T

VICANEK, M

KROOS, J

DECKER, I

SIMON, G

机构：

[1] PREUSSAG STAHL AG,D-38223 SALZGITTER,GERMANY

[2] TECH UNIV CAROLO WILHELMINA BRAUNSCHWEIG,INST SCHWEISSTECH,D-38106 BRAUNSCHWEIG,GERMANY

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1994年 / 27卷 / 10期

关键词：

D O I：

10.1088/0022-3727/27/10/006

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Free oscillations of the keyhole in penetration laser beam welding are studied theoretically with regard to characteristic frequencies, damping rates and stability at large amplitudes. The normal modes form a discrete set which may be characterized by axial and azimuthal numbers. Due to viscous damping, only the lowest modes survive many oscillation periods, which yields a limited range of frequencies for the dynamic response of the keyhole to fluctuations of external welding parameters.

引用

页码：2023 / 2030

页数：8

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[2]

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