%0 Conference Paper %1 Sawannia.2022.InSitu %A Sawannia, Michael %A Jakobs, Stefan %A Gach, Stefan %A Olschok, Simon %A Weber, Rudolf %A Graf, Thomas %D 2022 %K %T IN SITU INVESTIGATION OF THE CAPILLARY DYNAMICS IN ELECTRON BEAM WELDING USING THE POLARIZED THERMAL PROCESS EMISSION %X In this paper electron beam welding (EBW) was investigated with a thermal emission-based goniometer setup, which was installed in an electron beam chamber. The local surface angles of the vapor capillary during EBW were determined for penetration welding of 5 mm stainless steel (AISI 304). The records were carried out with a frame rate of 75 kHz and a spatial resolution of about 30µm coaxially to the electron beam (EB). This allowed to visualize the influence of transverse EB oscillation on the capillary shape. At a frequency of 1000 Hz, the shape of the capillary front changes with the respective frequency and amplitude, which results in an asymmetrical capillary shape in the feed direction. At 10000 Hz a quasi static shape is formed.

@inproceedings{Sawannia.2022.InSitu, abstract = {In this paper electron beam welding (EBW) was investigated with a thermal emission-based goniometer setup, which was installed in an electron beam chamber. The local surface angles of the vapor capillary during EBW were determined for penetration welding of 5 mm stainless steel (AISI 304). The records were carried out with a frame rate of 75 kHz and a spatial resolution of about 30µm coaxially to the electron beam (EB). This allowed to visualize the influence of transverse EB oscillation on the capillary shape. At a frequency of 1000 Hz, the shape of the capillary front changes with the respective frequency and amplitude, which results in an asymmetrical capillary shape in the feed direction. At 10000 Hz a quasi static shape is formed.}, added-at = {2023-03-29T07:40:39.000+0200}, author = {Sawannia, Michael and Jakobs, Stefan and Gach, Stefan and Olschok, Simon and Weber, Rudolf and Graf, Thomas}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/294d232fdce0feae31affb34b20680fb6/michaelsawannia}, eventdate = {14 october - 18 october 2018}, eventtitle = {41th International Congress on Applications of Lasers & Electro-Optics}, interhash = {7a93968f4e6a3864f189571714fa2774}, intrahash = {94d232fdce0feae31affb34b20680fb6}, keywords = {}, timestamp = {2023-03-29T07:41:20.000+0200}, title = {IN SITU INVESTIGATION OF THE CAPILLARY DYNAMICS IN ELECTRON BEAM WELDING USING THE POLARIZED THERMAL PROCESS EMISSION}, venue = {Orlando, Florida, United States}, year = 2022 }