Using mathematical models of the heat transfer processes in the course of ingot formation by electron-beam remelting, we determined the temperature conditions and the corresponding technological parameters under which a homogeneous structure without coarse columnar crystallites is reached in ingots of round and rectangular cross sections. A technology and equipment were developed for the production of large-scale ingots of titanium alloys up to 1200 mm in diameter and 4.5 m in length directly from uncrushed cakes of spongy titanium. The quality of ingots of both commercially pure and alloyed titanium meets the requirements of the ASTM B348-00 standard.
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