Research on the Necking Process of Short Pipe Throttle Valve based on ABAQUS
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.
Short Pipe Throttle ValveForce AnalysisSimulation AnalysisFeed RateFriction Coefficient
国家科技期刊平台
NSTL
万方数据
