【摘要】 针对某重卡前轴成形辊锻-模锻复合工艺中的典型缺陷———工字梁部位充不满展开研究。介绍了重卡前轴工字梁在辊锻成形工艺中各道次的孔型设计,通过Defoem-3D建立了有限元数值模拟分析模型,研究了第3道次预辊锻成形中工字梁壁厚和第3、4道次中摩擦因子对模具型腔填充率的影响规律,最后完成了重卡前轴工字梁在辊锻成形中的优化设计。优化后的模拟结果表明,工字梁成形良好、填充饱满,满足图纸设计要求。更多还原

【Abstract】 The under-filling defect of the I-beam,one of the typical defects on a heavy truck front axle in the precision roll forging process and die forging process was studied.Firstly,the design of the precision roll forging process for the I-beam of the front axle was described.Then,the finite element numerical simulation analysis model was established with Deform-3D,and the influence of the thickness on the I-beam in the third step and the friction factor in the third and fourth step on filling percent of the die cavity was analyzed.Lastly,optimization for the precision roll forging process of the heavy truck front axle was finished.The optimized simulation results show that the I-beam forms well and can be filled fully to meet the requirements of design drawings.更多还原