| 摘要 |
PURPOSE:To obtain a hyperfine Al wire for bonding by irradiating a beam having high energy density on an Al alloy ingot contg. a very small amount of one or more among Si, Ni, Cu, Cr, MN, Zr, Ti, V, Mg and Zn and by carrying out wire drawing. CONSTITUTION:An Al alloy ingot contg. <=0.5wt% one or more among Si, Ni, Cu, Cr, Mn, Zr, Ti, V, Mg and Zn is manufactured. A beam having high energy density such as an electron beam is irradiated on the ingot or an intermediate material formed by drawing the ingot. Local remelting and solidification are continuously carried out by the irradiation to make crystallized matter fine and uniform. Wire drawing is then carried out. |
