The Model Analysis of Molding Sand’s Removal and Mechanism Research Using High Pressure Water-Jet Technique
This paper studies the mechanism and process simulation of removal of molding sand by a high pressure water jet using a nonlinear dynamic damage model and finite element analysis (FEA). The results indicate that a high pressure water jet possesses a strong ability to remove molding sand. The destruction of molding sand is a concurrent result of stress wave and quasi-static pressure, in which the alterative stress wave plays a major role. The numerical results agree with the test results, indicating that the model and FEA are feasible for analyzing the mechanism and process of removal of molding sand by a high pressure water jet. These conclusions can be used for equipment design and process optimization of removal of molding sand for precision castings.
Kai Cheng, Yongxian Liu, Xipeng Xu and Hualong Xie
J. Gao et al., "The Model Analysis of Molding Sand’s Removal and Mechanism Research Using High Pressure Water-Jet Technique", Applied Mechanics and Materials, Vols. 16-19, pp. 1127-1132, 2009