Print

2012 №02 (01) 2012 №02 (03)

The Paton Welding Journal 2012 #02
The Paton Welding Journal, 2012, #2, 11-18 pages  

INVESTIGATION OF FACTORS INFLUENCING THE FORMATION OF WELD DEFECTS IN NON-VACUUM ELECTRON BEAM WELDING

U. REISGEN1, M. SCHLESER1, A. ABDURAKHMANOV1, G.A. TURICHIN2, E.A. VALDAITSEVA2, Fr.-W. BACH3, T. HASSEL3 and A. BENIYASH3


1Aachen University, Welding and Joining Institute, Aachen, Germany
2Saint-Petersburg State Polytechnic University, Institute of Welding and Laser Technology, RF
3Leibniz University of Hannover, Institute of Materials Science, Garbsen, Germany
 
 
Abstract
The influence of welding condition parameters and properties of material on formation of defects, such as humping and undercuts, in non-vacuum electron beam welding was investigated. The influence of separate welding parameters on the quality of welds was determined.
 
 
Keywords: non-vacuum electron beam welding, welding speed, power density, shielding gas, weld defects, humping, undercuts
 
 
Received:                07.07.11
Published:               28.02.12
 
 
References
1. (1962) Introduction to electron beam technology. Ed. by R. Bakish. NY; London: John Wiley & Sons.
2. Bach, Fr.-W., Szelagowski, A., Versemann, R. et al. (2002) Non vacuum electron beam welding of light sheet metals and steel sheets. IIW Doc. 823-02.
3. Powers, D.E., Schumacher, B.W. (1989) Using the electron beam in air to weld conventionally produced sheet metal parts. Welding J., 68(2), 48-53.
4. Dilthey, U., Masny, H. (2005) Hochgeschwindigkeitsschweissen mit dem Elektronenstrahl an Atmosphaеre - Fertigung von Karosseriekomponenten: DVS-Berichte, Vol. 237. Duеsseldorf: DVS.
5. Bach, Fr.-W., Beniyash, A., Lau, K. et al. (2009) Nonvacuum electron beam welding of structural steels. The Paton Welding J., 5, 22-26.
6. Albright, C.E., Chiang, S. (1988) High speed laser welding discontinuities. In: Proc. of 7th ICALEO (Santa Clara, CA, USA, 1988), 207-213.
7. Wei, P.S. (2011) Thermal science of weld bead defects: A review. J. Heat Transfer, 133.
8. Turichin, G., Valdaytseva, E., Bach, Fr.-W. et al. (2010) Dynamic processes at high speed laser and electron beam treatment of materials. In: 25th Ann. of Cooperation: Transactions of St. Petersburg State Polytechnic University and Leibniz University of Hannover, 91--101.
9. Reisgen, U., Schleser, M., Abdurakhmanov, A. et al. (2010) Messung der Strahlqualitaet einer Elektronenstrahlanlage in Umgebungsatmosphaere. Materialwissenschaft und Werkstofftechnik, 41(1), 45-52.
10. Rayleigh, J. (1945) The theory of sound. NY: Dover.
11. Czerner, St. (2005) Schmelzbaddynamik beim LaserstrahlЕ Waermeleitungsschweissen von Eisenwerkstoffen: Diss. Hannover.
12. Sievers, E.-R. (2006) Schmelzbadinstabilitaeten beim Elektronstrahschweissen von Grobblechen. Schweissen und Schneiden, 58(6), 288-295.