Stress Analysis and Life Estimation of Staged Prestressed Combined Cavity Die
According to the structure strength optimization theory, each cavity die layer’s size and inter layer interference were obtained by using the Lame formula. The end angle and height difference were introduced into the finite element model, and a new and reasonable staged inclined end prestressed combined cavity die have been designed. The cavity die’s working life was forecasted by wear model and fatigue fracture model, and the conclusion was acquired that fatigue is the main factor to destroy the cavity die.
Xianghua Liu, Zhengyi Jiang and Jingtao Han
Z. P. Lv et al., "Stress Analysis and Life Estimation of Staged Prestressed Combined Cavity Die", Advanced Materials Research, Vols. 418-420, pp. 1796-1799, 2012