随着飞行速度的提高,飞机表面温度急剧上升,因而钛合金蒙皮在现代飞机上的使用日益广泛。由于钛合金的屈服极限与强度极限相近,必须采用热工艺进行加工。钛蒙皮热成形的方法很多,对于大型双曲度钛蒙皮以自阻加热成形为宜。所谓自阻加热就是利用钛材本身较大的电阻率,较低的导热系数这一特点,采用大电流、低电压,使钛板在数十秒钟内 As the flight speed increases, the surface temperature of the airplane rises sharply, so the titanium alloy skin is increasingly used on modern aircraft. Due to the titanium alloy yield strength and strength limit similar to the need to use thermal processing. Ti skin skin thermoforming many ways, for large double-curvature titanium skin with self-resistance heating forming is appropriate. The so-called self-resistance heating is the use of titanium itself a larger resistivity, lower thermal conductivity of this feature, the use of high-current, low voltage, the titanium plate in a few seconds