TY - GEN
T1 - Investigation of electron beam welding on AZ91D-F extrusive plates
AU - Chi, C. T.
AU - Chao, C. G.
AU - Huang, C. A.
AU - Lee, C. H.
PY - 2006
Y1 - 2006
N2 - Electron beam welding (EBW) is currently the most advanced jointed technology because of its superior welding precision and larger depth-width ratio than other conjunctive methods. The high vacuum environment of EBW is favorable for the welding of magnesium alloys to prevent the active metals from oxidation. In this study, a home-made 11mm-thick AZ91D extrusive plate was used. By operating and comparing the changeable welding parameters, the optimum condition has been determined as 113mA, 40kV, 73.3mm/s and focal position at bottom. 82% and 89% of the matrix material strength were obtained by stress and non-stress concentration weldments, respectively. Under other worse parameters, the reduction of the strength of EBW for AZ91D-F resulted from four factors, which were undercuts, heat affected zone (HAZ), hot cracking, and cavities.
AB - Electron beam welding (EBW) is currently the most advanced jointed technology because of its superior welding precision and larger depth-width ratio than other conjunctive methods. The high vacuum environment of EBW is favorable for the welding of magnesium alloys to prevent the active metals from oxidation. In this study, a home-made 11mm-thick AZ91D extrusive plate was used. By operating and comparing the changeable welding parameters, the optimum condition has been determined as 113mA, 40kV, 73.3mm/s and focal position at bottom. 82% and 89% of the matrix material strength were obtained by stress and non-stress concentration weldments, respectively. Under other worse parameters, the reduction of the strength of EBW for AZ91D-F resulted from four factors, which were undercuts, heat affected zone (HAZ), hot cracking, and cavities.
KW - Electron beam welding
KW - Heat affected zone
KW - Optimum parameter
KW - Stress concentration
UR - http://www.scopus.com/inward/record.url?scp=33749040502&partnerID=8YFLogxK
U2 - 10.4028/0-87849-990-3.193
DO - 10.4028/0-87849-990-3.193
M3 - 会议稿件
AN - SCOPUS:33749040502
SN - 0878499903
SN - 9780878499908
T3 - Materials Science Forum
SP - 193
EP - 198
BT - Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture
PB - Trans Tech Publications Ltd
T2 - 2005 International Conference on Advanced Manufacture, ICAM2005
Y2 - 28 November 2005 through 2 December 2005
ER -