An Optimum-Curved Die-Profile for Investment Casting of Turbo Blades
In order to avoid tremendous modifications of the die cavity for investment casting of turbo blades, this paper proposed an inverse iterative compensation method that adjusts certain geometric parameters to establish the die-profile. The parameterized modeling is achieved by identifying geometric parameters describing the mean camber line; the optimum-curve die-profile can be obtained based on the inverse iteration algorithm. As a result, the dimension precision of turbo blades can be guaranteed. The applicability of this method is validated using numerical simulation data.
Y. W. Dong et al., "An Optimum-Curved Die-Profile for Investment Casting of Turbo Blades", Advanced Materials Research, Vols. 314-316, pp. 630-633, 2011