Precision forging method for miniature TC11 titanium alloy blades
A technology of TC11 and titanium alloy, which is applied in the field of titanium alloy forging, can solve the problems of increased manufacturing cost, curved airfoil profile, large torsional deformation, and out-of-tolerance blade size, so as to reduce manufacturing cost, improve pass rate, Reduce the effect of bending
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Examples
Embodiment 1
[0015] Example 1: The first stage rotor blade of a certain type of TC11 titanium alloy missile fan is processed. The length of the blade body is 35.8mm, the minimum thickness of the exhaust edge of the blade body profile is only 0.056mm, and the phase transition point of this batch is 990°C.
[0016] 1. Heating the forging billet and precision forging die: put the forging billet of the miniature TC11 titanium alloy blade into the heating furnace and heat it to 940℃ below the phase transition point, and use the high-temperature converter for circulating heating, and put one piece into the furnace every 0.2min. , filled with 42 pieces and started forging the first piece. After each piece was forged, one piece was reloaded into the furnace, and the manual control of the converter rotation was repeated in this way, and the temperature was kept for 6min-18min; the use temperature of the precision forging die was 210 °C;
[0017] 2. Precision forging: Put the forging blank of the min...
Embodiment 2
[0020] Example 2, dealing with the secondary rotor blade of a certain type of TC11 titanium alloy missile fan, the length of the blade body is 32.3mm, the minimum thickness of the exhaust edge of the blade body profile is only 0.066mm, and the phase transition point of this batch is 995°C.
[0021] 1. Heating the forging billet and precision forging die: Put the forging billet of the miniature TC11 titanium alloy blade into the heating furnace and heat it to 945°C below the phase transition point, use a high-temperature converter for circulating heating, and put one piece into the furnace every 0.25min. , filled with 45 pieces and started forging the first piece. After each piece of forging, reloaded one piece into the furnace, and repeated the manual control of the converter rotation, and kept the temperature for 5min to 16min; the use temperature of the precision forging die was 215 ℃;
[0022] 2. Precision forging: Put the forging blank of the miniature TC11 titanium alloy b...
Embodiment 3
[0025] Example 3: The first stage stator blade of a certain type of TC11 titanium alloy missile fan is processed. The length of the blade body is 28.0mm, the minimum thickness of the exhaust edge of the blade body profile is only 0.086mm, and the phase transition point of this batch is 1000°C.
[0026] 1. Heating the forging billet and precision forging die: Put the forging billet of the miniature TC11 titanium alloy blade into the heating furnace and heat it to 950 ℃ below the phase transition point, and use the high-temperature converter for circulating heating, and put one piece into the furnace every 0.30min. , filled with 48 pieces and started forging the first piece. After each piece of forging, reloaded one piece into the furnace, and repeated the manual control of the converter rotation, and kept the temperature for 8min to 18min; the use temperature of the precision forging die was 220 ℃;
[0027] 2. Precision forging: Put the forging blank of the miniature TC11 titani...
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Abstract
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