重型卡车曲轴辊锻制坯工艺分析与优化  

Analysis and optimization of roll forging process for producing workblanks of heavy truck crankshaft

作　　者：陶亚平[1] 周杰[1] 曹金豆 胡永毅 王平 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]重庆大江杰信锻造有限公司,重庆400044

出　　处：《模具工业》2014年第11期42-45,共4页Die & Mould Industry

摘　　要：针对某重型卡车曲轴在辊锻制坯工艺中,辊锻件出现"耳朵"缺陷以及辊锻长度达不到要求的问题,采用正交试验设计与数值模拟分析相结合,对该曲轴的辊锻工艺进行了优化。利用排队评分法分析了辊锻模的入模圆角、过渡圆角和过渡斜度对成形工艺的影响,并通过优化模具结构参数控制辊锻件的成形情况。经生产验证,优化后的辊锻制坯工艺能够得到质量合格的辊锻件,材料利用率可达80%以上。In view of the ＂ear＂ defect and the forging length＇s not meeting the expected requirement in the roll forging process for producing the workblanks of a heavy truck crankshaft, the orthogonal experiment design and numerical simulation analysis were combined to optimize the roll forging process. The queuing scoring method was used to study the effect of lead-in die fillet, transition fillet and transition gradient of roll forging die on the forming process; and the forming situation of the roll forging parts was controlled by optimizing the die structure parameters. The optimized process can reach more than 80% of material utilization.

关 键 词：曲轴 辊锻制坯 正交试验设计 排队评分法 

分 类 号：TG316[金属学及工艺—金属压力加工]