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3119 |
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Tuesday, March 27, 2012, SuperC, Hall Ford 2:25 PM Applications/Efficiency 3 |
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New advances in non-vacuum electron beam cutting |
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Nils Murray* / Institut für Werkstoffkunde
Universität Hannover, Nds Rudolf Konya/ , Alexander Beniyash/ , Friedrich-Wilhelm Bach/ , Thomas Hassel/ , |
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The electron beam is a tool with a high energy conversion efficiency which is by and large independent of the type of material. Its high power density qualifies the non-vacuum electron beam as an outstanding energy source for a new high speed cutting tool. Advances realized by the NVEB group at the Institute of Materials Science of the Leibniz University of Hannover in the field of non-vacuum electron beam cutting (NVEBC) will be presented. Experimental results for melt cutting with conventional blow gas jets will be presented as well as a new promising cutting process using the suction created by a local vacuum underneath the work piece. Extremely high cutting speeds such as 17 m/min for 2.5 mm thick stainless steel producing high quality edges render this method a significant development for new NVEB-applications. Different experimental results will be shown and discussed and concepts and solutions for the technology will be disclosed. |