the forming limit calculate theory of thin tube bulge forming is put forward, the bulge forming is simulated with marc software and the values of numerical calculation and simulation are compared.
采用marc软件对胀形过程进行模拟,并提出通过模拟获得胀形成形极限应变及极限胀形系数的方法。理论计算结果与模拟结果的比较表明理论值趋于安全。