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大型曲轴的全纤维成形工艺是保证曲轴能够在复杂的应力状态下正常工作的一种有效的工艺方案。由于其成形过程复杂 ,变形过程的应力场和应变场很难用实验方法确定。本文基于 ANSYS工作平台 ,利用开发的三维有限变形弹塑性有限元程序及网格重划功能 ,模拟了曲轴的 RR法和 TR法成形过程 ,分别得到了不同曲轴在不同变形条件下变形过程的应力场和应变场及载荷位移曲线 ,为进一步研究曲轴全纤维成形过程 ,确定合理的成形工艺方案和模具形状及提高成形质量和模具寿命提供了可靠的依据。
Large crankshaft fiber forming process is to ensure that the crankshaft can work in complex stress state an effective process. Due to its complex forming process, the stress field and strain field in the deformation process are difficult to determine experimentally. Based on the ANSYS working platform, the three-dimensional finite element elasto-plastic finite element program and the grid redrawing function were developed to simulate the crankshaft RR and TR processes. The stress of different crankshafts under different deformation conditions Field and strain field and load displacement curve provide a reliable basis for further study of the crankshaft full fiber forming process, to determine a reasonable process of forming process and the shape of the mold and improve the forming quality and mold life.