ZHANG Liliang , WANG Chang , WEI Yanfeng , ZHANG Zhicheng
(School of Mechanical Engineering , Inner Mongolia University of Science and Technology , Baotou 014010 , China)
Abstract : In order to improve the quality and reduce the manufacturing cost of injection molding machines , the fixed and dynamic tem- plates of a 1 600 kN double curved elbow injection molding machine were studied. Through heat transfer theories and finite element simulation analysis , a systematic thermal-structural coupling calculation was conducted for the fixed and the dynamic templates by using ANSYS; the temperature field and the thermal-structural coupling effects were analyzed. On this basis , topology optimization methods were applied to a lightweight design of the said templates , and the total deformation of the templates increased after optimization. The stress in the fixed and dynamic templates increased by 10 . 27 MPa and 9 . 94 MPa respectively , both within the allowable engineering range; the mass of the clamping mechanism was reduced by 10 . 5% , compared with that of the original model.
Key words : injection molding machine; mold closing mechanism ; thermal-structural coupling; topological optimization