成形极限曲线与板材成分及性能指标关系的探讨  

Study on Relationship of Figuration Limit Curve,Sheet Metal Compositions and Its Property Indexes

作　　者：于燕[1] 车畅[1] 赵洪运[1] 宋起峰[2] 王立夫[1] 孙艳坤[1] 刘臻[1] 

机构地区：[1]长春工业大学材料科学与工程学院,吉林长春130012 [2]中国第一汽车集团公司技术中心,吉林长春130011

出　　处：《汽车工艺与材料》2005年第4期18-20,23,共4页Automobile Technology & Material

摘　　要：采用电化学腐蚀法,用不同宽度的毛坯改变应变状态,做出不同钢种、不同厚度钢板的成形极限曲线,探讨了化学成分、薄板强度、伸长率、n值、r值和厚度等多种因素对成形极限曲线的影响,以及成形极限曲线在评价汽车用深冲钢板成形性方面的作用。In this paper electricity chemistry corrosion method is adopted to draw figuration limit curve of different steel plates with different thickness,using different width blanks to change strain state. The paper also discussed the effect of chemistry component,thin plate strength,stretch ratio,n value,r value and thickness on figuration limit curve,and the function of figuration limit curve in evaluating deep drawing steel plates used for cars.

关 键 词：成形极限曲线 板材 性能 

分 类 号：TG386.41[金属学及工艺—金属压力加工]