Method for forming Ti3Al-based alloy thin-wall barrel
A base alloy, thin-walled cylinder technology, used in welding and post-weld heat treatment, and the field of Ti3Al thin-walled cylinder hot forming, can solve the problems of cracked cylinder wall, micro-cracks, and alloy deformation resistance is large and difficult to deform, so as to reduce deformation. The effect of resistance, improving plasticity and avoiding cracks
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Embodiment 1
[0025] Using 3mm thick Ti 3 Al-based alloy sheet, the Ti 3 Al-based alloy thin-walled tube forming method:
[0026] (1) For 3mm thick Ti 3 The Al-based alloy plate is formed by hot rolling and bending at a temperature of 700°C to form a diameter Φ200mm tube billet;
[0027] (2) Using CO 2 Continuously input the welding seam in the direction of the busbar of the tube billet obtained in the laser penetration welding step (1), and obtain Ti 3 Al-based alloy thin-walled cylinder, where the laser power is 2500W, the scanning speed is 190cm / min, and the surface is focused;
[0028] (3) Ti obtained after step (2) laser welding 3 The Al-based alloy thin-walled tube was kept at 950°C for 1.5h and then cooled with the furnace;
[0029] (4) Ti after step (3) heat treatment 3 The Al-based alloy thin-walled cylinder is calibrated at 600°C;
[0030] (5) Ti after step (4) schooling 3 The Al-based alloy thin-walled cylinder is heat-treated at 980°C under vacuum conditions, and after ...
Embodiment 2
[0032] Using 1.5mm thick Ti 3 Al-based alloy sheet, the Ti 3 Al-based alloy thin-walled tube forming method:
[0033] (1) For 1.5mm thick Ti 3 The Al-based alloy plate is formed at a temperature of 700°C by hot rolling and bending to form a diameter Φ300mm tube billet;
[0034] (2) Using CO 2 Continuously input the welding seam in the direction of the busbar of the tube billet obtained in the laser penetration welding step (1), and obtain Ti 3 Al-based alloy thin-walled cylinder, where the laser power is 2000W, the scanning speed is 150cm / min, and the surface is focused;
[0035] (3) Ti obtained after step (2) laser welding 3 Al-based alloy thin-walled tubes were kept at 950°C for 3 hours and then cooled with the furnace;
[0036] (4) Ti after step (3) heat treatment 3 The Al-based alloy thin-walled cylinder is calibrated at 600°C;
[0037] (5) Ti after step (4) schooling 3 The Al-based alloy thin-walled cylinder is heat-treated at 980°C under vacuum conditions, and a...
Embodiment 3
[0039] Using 3mm thick Ti 3 Al-based alloy sheet, the Ti 3 Al-based alloy thin-walled tube forming method:
[0040] (1) For 3mm thick Ti 3 The Al-based alloy plate is formed by hot rolling and bending at a temperature of 650°C to form a diameter Φ200mm tube billet;
[0041] (2) Using CO 2 Continuously input the welding seam in the direction of the busbar of the tube billet obtained in the laser penetration welding step (1), and obtain Ti 3 Al-based alloy thin-walled cylinder, where the laser power is 2500W, the scanning speed is 190cm / min, and the surface is focused;
[0042] (3) Ti obtained after step (2) laser welding 3 The Al-based alloy thin-walled tube is kept at 1000°C for 1.5h and then cooled with the furnace;
[0043] (4) Ti after step (3) heat treatment 3 The Al-based alloy thin-walled cylinder is calibrated at 600°C;
[0044] (5) Ti after step (4) schooling 3 The Al-based alloy thin-walled cylinder is heat-treated at 950°C under vacuum conditions, and then a...
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