@Article{dbt_mods_00062601,
  author = 	{Diegel, Christian
		and Schricker, Klaus
		and Schmidt, Leander
		and Dorschner, Daniel
		and Bergmann, Jean Pierre},
  editor = 	{Schmidt, M.
		and Vollertsen, Frank
		and Colosimo, B.M.},
  title = 	{Evaluation of the effect of local gas flows on keyhole geometry by means of a half-section setup},
  journal = 	{12th CIRP Conference on Photonic Technologies: edited by M. Schmidt, F. Vollertsen, B.M. Colosimo},
  year = 	{2022},
  month = 	{Sep},
  day = 	{06},
  publisher = 	{Elsevier BV},
  address = 	{[Amsterdam u.a.]; Amsterdam [u.a.]},
  volume = 	{111},
  pages = 	{385--390},
  keywords = 	{full penetration laser welding; spatter formation; local gas flow; half-section setup; keyhole geometry},
  abstract = 	{Increasing beam power of solid-state lasers enables high welding speeds for laser welding processes. However, increasing welding speeds lead to imperfections, especially spatter formation while processing high-alloy steels. A recent and novel approach to reduce the spatter formation is the utilization of a local gas flow to manipulate the keyhole pressure balance beneficially. To get a better understanding of the effect of the gas flow on the keyhole and its geometry during deep penetration welding, a half-section setup was developed. The laser beam was positioned partially on a glass plate and the metal sheet to provide an insight into the processing zone by means of high-speed recordings. Thus, it was possible to measure the keyhole geometry and to quantify the effect of different welding speeds and gas flows on keyhole length for full penetration welds.},
  issn = 	{2212-8271},
  doi = 	{10.1016/j.procir.2022.08.172},
  url = 	{https://www.db-thueringen.de/receive/dbt_mods_00062601},
  url = 	{http://uri.gbv.de/document/gvk:ppn:182381395X},
  url = 	{http://uri.gbv.de/document/gvk:ppn:1816974099},
  url = 	{http://uri.gbv.de/document/gvk:ppn:720121132},
  url = 	{https://doi.org/10.1016/j.procir.2022.08.172},
  file = 	{:https://www.db-thueringen.de/servlets/MCRFileNodeServlet/dbt_derivate_00064898/1-s2.0-S2212827122010666-main.pdf:PDF},
  language = 	{en}
}