【摘要】 针对发动机减震器带轮内筒成形,提出一种新的旋压工艺——铲旋技术。利用DEFORM建立三维刚塑性力学模型,以旋轮转速、进给速度、圆角半径和直径为优化参数,成形载荷为优化目标,设计正交试验,对发动机减震器带轮内筒的铲旋成形进行有限元模拟,并提取成形载荷曲线进行分析。在CDC-S400旋压机上进行试验,并对数值模拟结果加以验证。研究结果表明,旋轮进给速度对成形载荷影响最大,直径影响最小;工艺参数优化后,最大成形载荷明显下降。更多还原

【Abstract】 The inner cylinder of engine absorber pulley was studied by using the shovel spinning which is presented as a new spinning process.A 3d rigid-plastic FEM model was established by the software,DEFORM.The simulation of the inner cylinder of engine absorber pulley was analyzed in terms of the rotation velocity,feed rate,fillet radius and diameter of the spinning roller by using the orthogonal test which aims to get the optimum processing parameters,and the forming load is also investigated.A corresponding experiment was done with the CDC-S400 spinning machine to validate the numerical simulation.The results show that the feed rate of the spinning roller has the most significant effect on the forming load and the lowest influencing factor is the diameter.The maximum forming load significantly decreases after the processing parameters were optimized.更多还原