摘要
Abstract
In response to the problem of high defect rate in manual necking of short pipe throttle valves,a force analysis was conducted on the valve body during the necking process based on the necking process principle.Based on the analysis results,the main influencing factors on necking quality were determined to be the mold feed speed and friction coefficient.Establish a shrinkage simulation model in Abaqus with constant friction coefficient,with the mold shrinking at feed rates of 50 mm/s,100 mm/s,and 150 mm/s,and the mold feeding rate remaining unchanged.The friction coefficients are 0.06,0.10,0.15,and 0.20.Design orthogonal experiments based on the simulation results of two sets of models,and optimize the necking process parameters and processing equipment through experimental analysis.Establish a control group in the equipment that does not limit the radial freedom of the mold,has a feed rate of 150 mm/s,and limits the freedom of the mold,with a feed rate of 50 mm/s,100 mm/s,and 150 mm/s for analysis.The results indicate that the optimized necking process parameters of the equipment have improved the quality of the necking process.关键词
短管节流阀/受力分析/仿真分析/进给速度/摩擦系数Key words
Short Pipe Throttle Valve/Force Analysis/Simulation Analysis/Feed Rate/Friction Coefficient分类
矿业与冶金
