大型40Cr13不锈钢环件径-轴向轧制工艺研究及优化  

Research and optimization on radial-axial rolling process for large 40Cr13 stainless steel ring parts

作　　者：史志起 时礼平[1,2] 魏伟[1] 李蒙 王涛 成思福 Shi Zhiqi;Shi Liping;Wei Wei;Li Meng;Wang Tao;Cheng Sifu(School of Mechanical Engineering,Anhui University of Technology,Ma′anshan 243011,China;Wuhu Technological Innovation Research Institute of Anhui University of Technology,Wuhu 241002,China;Ma′anshan Chenxu Machinery Manufacturing Co.,Ltd.,Ma′anshan 243141,China)

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243011 [2]安徽工业大学芜湖技术创新研究院,安徽芜湖241002 [3]马鞍山市晨旭机械制造有限公司,安徽马鞍山243141

出　　处：《锻压技术》2023年第4期129-137,共9页Forging & Stamping Technology

基　　金：安徽省重点研究与开发计划项目(2022a05020015);马鞍山市科技创新项目(2021a120006)。

摘　　要：大型40Cr13不锈钢环件轧制成形复杂,在径-轴向轧制过程中,常存在参数设置不合理导致环件在轧制过程中出现失稳、偏移、异形等问题。针对这类问题,以目标外径为Φ2952 mm的大尺寸环件为研究对象,设计了4阶段式轧制曲线,选取轧制过程中的环件初始温度、驱动辊转速、环件外径增大速度等关键参数,并利用Deform-3D软件模拟轧制成形过程,分析了不同参数对径向轧制力、等效应变与温度分布的影响。结果表明:在4阶段式轧制过程,环件初始温度为1100℃、驱动辊转速为20 r·min^(-1)、环件外径增大速度为5.6 mm·s^(-1)时,成品环件的轧制力合适,且等效应变与温度分布均匀。The rolling of large 40Cr13 stainless steel ring parts is a very complex process,and in the radial-axial rolling process,there are often problems such as instability,offset and abnormal shape of ring parts caused by the unreasonable parameter settings in the rolling process.Therefore,in order to resolve them,for the large-size ring parts with targeted outside diameter ofΦ2952 mm,a four-stage rolling curve was designed,by selecting the key rolling parameters such as initial temperature of ring part,rotation speed of driving roller,and outer diameter increase speed of ring part in the rolling process,the rolling process was simulated by software Deform-3D,and the influences of different parameters on the rolling force,equivalent strain and temperature distributions were analyzed.The results show that under the four-stage rolling process,when the initial temperature is 1100℃,the rotation speed of driving roller is 20 r·min^(-1),and the outer diameter increase speed of ring part is 5.6 mm·s^(-1),the rolling force of finished ring part is appropriate,and the distributions of equivalence strain and temperature are uniform.

关 键 词：40Cr13不锈钢 环件 轧制 等效应变 温度 轧制力 

分 类 号：TG335[金属学及工艺—金属压力加工]