空心双拐曲轴内高压成形数值模拟的研究

Research on numerical simulation of high pressure forming of loading path in hollow double throw crankshaft

内高压成形技术作为一种先进的轻量化的成型工艺广泛应用于汽车、航空、航天等轻量化领域,近年来成为广泛关注的热点。应用有限元模拟软件DYNAFORM对空心双拐曲轴内高压成形过程进行模拟,研究了不同加载路径下轴向进给和内压力对内高压成形的影响,给出了最佳的成形压力和轴向进给的加载路径,成形结果均较理想,得到了合格的成形零件。

Internal high pressure forming technology is a kind of advanced manufacturing technology.It is widely applied in lightweight fields such as aviation,aerospace,and auto.The hydro forming process of hollow double throw crankshaft was numerically analyzed and simulated based on DYNAFORM.Then the influence to hydro forming process in different loading paths was studied and the best loading path between optimum forming pressure and axial feeding were obtained.The forming result was ideal and the forming parts were qualified.