Topology optimization of platen for injection molding machine based on ANSYS

YANG An
（Fair Friend Institute of Electromechanics， Hangzhou Vocational and Technical College， Hangzhou 310018， China）

Abstract： Aiming at the design requirements on inducing weight，improving strength，stiffness and fatigue life of the platen for the injection molding machine toggle clamp system，topology optimization on the front platen of the injector was carried out and proceeded with two aspects by using ANSYS and FE-SAFE software. One topology optimization was conducted with current structure，while the second with original structure in order to seek the most reasonable design form. The stress，deformation and fatigue properties of the optimized platen were analyzed. The results show that the optimized platen has less weight，lower stress and deformation，leading to the improvement of fatigue characteristics as compared to the platen without optimization. Moreover，the strength，stiffness and fatigue life of the platen of the injector are enhanced through optimizing by using ANSYS and FE-SAFE software. The results suggest  that the material can be utilized effectively due to weight reduction of the front platen.
Key words： injection molding machine；front platen；topology optimization