离心压缩机马氏体不锈钢叶片热锻仿真及精度影响因素分析  

Hot Forging Simulation of Martensitic Stainless Steel Blade of Centrifugal Compressor and Analysis of Influencing Factors on Precision

作　　者：霍海燕 沈伟涛 刘心 张冲[2] 张琦[2] Hai-yan Huo;Wei-tao Shen;Xin Liu;Chong Zhang;Qi Zhang(Process R&D Department,Xi’an Shaangu Power Co.Ltd.;China School of Mechanical Engineer,Xi’an Jiaotong University)

机构地区：[1]西安陕鼓动力股份有限公司 [2]西安交通大学机械工程学院

出　　处：《风机技术》2020年第4期61-67,共7页Chinese Journal of Turbomachinery

摘　　要：本文借助FORGE软件对马氏体不锈钢叶片成形过程进行了数值仿真分析,研究了坯料加热温度、模具预热温度、压力机最大吨位与合模间隙、保压时间等因素对叶片成形精度的影响。研究表明:提升坯料温度和模具温度有助于提高叶片成形精度,保压过程应持续到叶片冷却以避免坯料降温过程中的回弹变形,而越大的压力机最大吨位一方面能够减小回弹量提高叶片成形精度,另一方面与最终的模具合模间隙之间存在关联,从而决定了叶片最终能够达到的成形精度。The numerical simulation analysis of Martensitic stainless steel blade forming process was carried out,and the effects of blank temperature,mold temperature,equipment tonnage and clamping gap,holding time on blade forming accuracy were studied.Studies have shown that raising the blank temperature and mold temperature helps improve the blade forming accuracy.The holding time on forming should last until the blade is cold.The larger equipment tonnage can reduce the springback and improve the blade forming accuracy,and also,the equipment tonnage are interrelated with clamping gap,the the max precision is decided.

关 键 词：叶片 热成形 数值模拟 工艺参数 

分 类 号：TH452[机械工程—机械制造及自动化] TK05[动力工程及工程热物理]