Rolling method of titanium alloy plate-shaped forgings
A titanium alloy plate and titanium alloy technology, applied in the direction of metal rolling, metal processing equipment, etc., can solve the problems of too many forging fires, achieve the effects of improving quality, avoiding uneven thickness, and improving production efficiency
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[0018] The chemical composition (percentage by weight) of the TC4 alloy is: 5.5% to 6.8% of Al, 3.5% to 4.5% of V, ≤0.30% of Fe, ≤0.10% of C, and ≤0.05% of N , H content ≤ 0.015%, O content ≤ 0.20%, other elements individually ≤ 0.10% and the sum ≤ 0.40%, the balance being Ti.
[0019] The steps of this method are as follows:
[0020] Heat the titanium alloy rods cut according to the specifications to 30°C below the phase transition point, and keep warm according to the effective thickness × 6min / 10mm; use three times of upsetting, elongating, and rolling for re-forging, and air-cool after forging; the final forging temperature is greater than Equal to 880°C;
[0021] Reheat the reforged billet to 780°C, and keep it warm according to the effective thickness × 6min / 10mm; then perform upsetting to obtain a solid cylinder; then punch the solid cylinder to obtain a hollow cylinder, and the inner diameter of the hollow cylinder is the outer diameter 30% to 40% of the size;
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