摘要
用数值模拟的方法研究材料成形性能对空心曲轴内高压成形结果的影响,分析了管材的厚向异性系数与硬化指数的变化对壁厚分布的影响,结果表明,内高压成形件的壁厚分布与材料的硬化指数n值、厚向异性指数r值密切相关,n值越大,壁厚分布越均匀,r值越大,壁厚减薄率越小,可减小破裂的可能性。
An investigation is conducted for the influence of the material’s mechanical property on simulation of hollow crankshaft hydroforming. By analysing the effect of n value and r value on thickness distributions, it is found that for the materials with bigger n value, wall thickness distribution is more uniform, and the minimal wall thickness of the transition region is increased. The width in transition region and the center region and wall thickness in center region is accordingly smaller.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2006年第S1期48-50,共3页
China Mechanical Engineering
基金
华中科技大学塑性成形模拟及模具技术国家重点实验室开放基金资助项目(05-7)
哈尔滨工业大学校基金资助项目(HIT.2003.08)
