The side skirts of automobiles were about 1 m long and 0.1 m wide,with many complex structures such as buckles,reinforcing ribs,and insert holes,making them large,slender,and complex plastic parts.The difficulty of forming large,slender and complex plastic parts required the use of a combination of numerical simulation and mold design,where simulation,design,and verification intersect and penetrate each other.According to the characteristics of the product,three pouring schemes were proposed,and the simulation results showed that Scheme 3 had the smallest amount of warping deformation,which was 4.51 mm.Verified the parameters such as shrinkage,filling time,filling contour,filling end time difference,and pressure difference of Scheme 3.The results showed that Scheme 3 had uniform filling,consistent end pressure,no shrinkage of the product,and no surface quality defects.Scheme 3 was a feasible scheme.Design the mold according to Scheme 3,including the pouring system,forming components,ejection mechanism,cooling system,etc.After the mold design was completed,the cooling system was verified.It was found that the temperature difference between the convex and concave molds was less than 10 ℃,and the mold temperature tended to be consistent without any risk of warping and deformation.The mold design according to Plan 3 could serve as the final plan and guide mold manufacturing and production.
关键词
汽车侧裙板/浇注系统/优化/冷却系统/模具设计
Key words
automobile side skirts/gating system/optimization/cooling system/mould design
维普
万方数据