摘要
现有的铝合金变形抗力模型只针对具体牌号合金,之间没有联系,一旦成分变化就不再适用了。为了克服这个问题,本文对21种热成形典型铝合金以Hansel–Spittel模型为基础,对其模型系数A,m1,m2,m3,m4进行基于化学成分的线性拟合,建立了Hansel–Spittel模型系数的化学成分模型,进而获得基于化学成分和高温变形参数的热变形抗力模型,经检验所得模型具有较好的精度。
Existing aluminum deformation resistance model is only really valid for specific grades of alloy,it is no longer applicable when the alloy composition changed. In order to overcome this problem,based on hot forming Hansel-Spittel model of the 21 kinds of grades of aluminum alloy,its model coefficients A,m1,m2,m3,m4 was linear fitted based on the alloy chemical composition,and the model coefficients function was established with the chemical compositions,so that the＇ new hot deformation resistance model based on chemical composition and elevated temperature deformation parameters was found. The resulting model has been tested with good accuracy.
出处
《科技资讯》
2014年第13期6-6,8,共2页
Science & Technology Information
关键词
铝合金
变形抗力
热变形
Aluminum
Alloy
Deformation Resistance
Hot Deformation
