Pk. Ghosh et L. Dorn, CORRELATION OF WELD GEOMETRY WITH THE MECHANICAL-PROPERTIES OF PULSEDCURRENT MIG WELD OF AL-ZN-MG ALLOY, Transactions of the Indian Institute of Metals, 47(6), 1994, pp. 401-408
Welding Al-Zn-Mg alloy is carried out by continuous and pulsed current
MIG welding processes. The geometry of the weld is characterized by t
he ratio (r) of root to top widths ol the welds. The influence of puls
e parameters on r is studied. The tensile properties of the joint, imp
act toughness of the weld and the micro-shear strength of the weld and
HAZ are studied and correlated with r. The micro-shear strength of th
e top and root regions of the weld is also studied. The properties of
the weldments prepared by using the pulse and continuous currents are
compared.