Forging method for eliminating crescent marks at the end of tc4 titanium alloy slab
A forging forming and titanium alloy technology, applied in metal processing equipment and other directions, can solve the problems of complex process and low yield, and achieve the effect of eliminating sharp corners and large arcs, reducing the number of returning to the furnace and improving the yield.
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Embodiment 1
[0045] Target product: TC4 alloy slab, length × width × height: 150- +5 10 ×1400 0 +15 ×2500 0 +90 .
[0046] Step 1: Select the TC4 ingot with the ingot type of Φ800, put the ingot into the furnace at 700°C, raise the temperature to 800°C, keep it for 120 minutes, then raise it to 1150°C, and keep it for 480 minutes;
[0047] Out of the furnace for forging, two upsetting and two drawing are completed, air cooling, the deformation of each upsetting and drawing is controlled at 37-40%, the final forging temperature is 900°C; the heating and heat preservation coefficient is 0.3min / mm.
[0048] Step 2: After the treatment in step 1, the grinding is clean, and then it is put into the furnace at 700°C, heated to 800°C, kept for 120 minutes, and then raised to the phase transition point of 50°C, that is, 1050°C, kept for 400 minutes, and then out of the furnace for forging. Two upsetting, water cooling, the deformation of each upsetting is controlled at 37-40%, the final forgi...
Embodiment 2
[0052] Target product: TC4 alloy slab, length × width × height: 130- +5 5 ×1800 0 +20 ×1600 0 +70 .
[0053] Step 1: Select TC4 ingot with an ingot type of Φ800, put the ingot into the furnace at 680°C, raise the temperature to 800°C, keep it for 135 minutes, then raise it to 1130°C, and keep it for 400 minutes;
[0054] Out of the furnace for forging, two upsetting and two drawing are completed, air cooling, the deformation of each upsetting and drawing is controlled at 37-40%, the final forging temperature is 900°C; the heating and heat preservation coefficient is 0.5min / mm.
[0055] Step 2, after the treatment in step 1, grind it clean, then put it into the furnace at 680°C, raise the temperature to 800°C, keep it for 150 minutes, then raise it to the phase transition point of 40°C, that is, 1040°C, keep it for 450 minutes, and then come out of the furnace for forging. Two upsetting, water cooling, the deformation of each upsetting is controlled at 37-40%, the final f...
Embodiment 3
[0059] Target product: TC4 alloy slab, length × width × height: 200 ++1 1 0 0 ×1600- +5 10 ×3000 0 +75 .
[0060] Step 1: Select TC4 ingot with an ingot type of Φ800, put the ingot into the furnace at 750°C, raise the temperature to 800°C, keep it for 150 minutes, then raise it to 1170°C, and keep it for 350 minutes;
[0061] Out of the furnace for forging, two upsetting and two drawing are completed, air cooling, the deformation of each upsetting and drawing is controlled at 37-40%, the final forging temperature is 950°C; the heating and heat preservation coefficient is 0.7min / mm.
[0062] Step 2, after the treatment in step 1, grind it clean, then put it into the furnace at 750°C, raise the temperature to 800°C, keep it for 130 minutes, then raise it to the phase transition point of 20°C, that is, 1020°C, keep it for 400 minutes, and then come out of the furnace for forging. Two upsetting, water cooling, the deformation of each upsetting is controlled at 37-40%, the ...
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