CAJ | 학술논문

塑性铰是影响环件摆动辗压工艺稳定的重要因素,研究其形成过程非常必要.建立了基于ABAQUS软件的环件摆辗镦粗有限元模型,研究了环件塑性铰区域的应力分布状况,分析了不同高径比对环形件塑性铰区域应力场的影响,得到了塑性铰形成的影响因素及变化规律,即随着环件高径比增大,塑性铰的位置沿摆头旋转方向偏移,促进了环件摆辗镦粗工艺的稳定与发展.
소성교시영향배건파동전압공예은정적중요인소,연구기형성과정비상필요.건립료기우ABAQUS연건적배건파전대조유한원모형,연구료배건소성교구역적응력분포상황,분석료불동고경비대배형건소성교구역응력장적영향,득도료소성교형성적영향인소급변화규률,즉수착배건고경비증대,소성교적위치연파두선전방향편이,촉진료배건파전대조공예적은정여발전.
The plastic hinge is the key factor that can effect the stability of the ring rotary forging process and it is essential to study the feature of the plastic hinge. Based on the ABAQUS simulation software, the FE model of ring rotary forging process was established and the stress distribution in the zone of the ring plastic hinge was investigated.The influence mode of ring ratio of height to diameter to the stress distribution in the ring plastic hinge zone was analysed. So the influencing factors and the variation patterns of the establishment and development of the plastic hinge were obtained during ring rotary forging process. That is as high-diameter ratio of ring increases, the location of the plastic hinge shifted along the direction of the rocker's rotation. The above results will promote the stability and development of the ring rotary forging process.