Forming of Titanium and Titanium Alloys: Part Two

The commercial production of titanium plate, sheet, strips, and bars is carried out using hot and cold rolling mills to achieve the necessary reductions and desired shapes. Rolling may be defined as the reduction of the cross-sectional area of a piece by compressive forces applied through rolls.

Cold rolling is carried out at temperatures below which the rate of strain hardening is greater than the rate of recrystallization. When reduction is carried out above such a temperature, the process is termed hot rolling. The major quantity of titanium plate, sheet, strips and bars is processed using hot rolling techniques.
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Forming of the Titanium and Titanium Alloys: Part One

Hot and cold working or shaping of the titanium alloys involves forging, rolling, extrusion, drawing, spinning, and other such operations.
Operations such as forging and rolling, in which the basic ingot is processed into standard forms of billets, sheet, plate, rod, and wire, will be referred to as primary forming operations. Bending, extrusion, drawing, spinning, in which these standard forms are further fabricated, will be referred to as secondary operations.
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