液压机横梁弯曲及模座裂纹的数值模拟研究  

Numerical simulation study on the beam bending of hydraulic press and the crack of die holder

作　　者：钱直睿 黄秀香 徐从迎 王辛立 路慧明 

机构地区：[1]一汽解放青岛汽车有限公司,山东青岛266217

出　　处：《模具工业》2016年第3期40-42,共3页Die & Mould Industry

摘　　要：针对载货车纵梁使用50 000 k N10缸联动的液压机设备冲压成形,设备横梁在生产中产生了弯曲,纵梁成形模的上模座加强筋部位也出现了裂纹,建立了整个工作部分的有限元模型,分析了上述2种现象产生的原因,由于纵梁长度存在差异,使用的液压缸数量不同容易使设备产生偏压,造成横梁产生弯曲,并使无纵梁板料位置处的模座加强筋产生较大应力。In view of the truck longeron was formed by a hydraulic press with 50 000 k N and 10 cylinders, the beam of hydraulic press was bent and the crack appeared on the reinforcing rib of the forming die holder for longeron. The finite element model of whole working parts was established and the above phenomena were analyzed. Different number of hydraulic cylinder would lead to partial pressure because of the difference of longeron length, which resulted in bending the beam and produced greater stress on the reinforcing rib of die holder where without blank.

关 键 词：液压机 横梁 弯曲 模座裂纹 数值模拟 

分 类 号：TG386.31[金属学及工艺—金属压力加工] O242.21[理学—计算数学]