摘要
为了满足ＬＤ２超厚铝合金锻件（ｄ１８００ｍｍ×４６０ｍｍ）的使用力学性能特殊要求，对降低超厚铝合金锻件残余应力的新技术进行了系统的研究，合适的热处理工艺为：固溶温度４８０℃，淬火水温８０℃，淬火出水温度１２０℃，淬火后与变形间隔不大于３ｈ，淬火后冷变形量为３％～５％，１６５＋５℃人工时１５ｈ。强度指标（σｂ，σ０２，ＨＢ）比未经热处理的状态提高６０％～７０％，塑性指标和导电率提高５０％。采用有限元法分析了锻件淬火残余应力。
In order to satisfy the special needs of mechanical properties of extra thick aluminium alloy forging LD2 ( d 1 800mm×460mm), the new technique to eliminate the residual stress of extra thick aluminium alloy forging has been studied systematically and the forging quench residual stress has been analysed using finite element method.The experimental results are in accordance with those calculated by FEM.
出处
《中国有色金属学报》
EI
CAS
CSCD
1996年第3期67-70,共4页
The Chinese Journal of Nonferrous Metals
关键词
固溶处理
残余应力
有限元
铝合金
锻件
solid solution treatment cold deformation residual stress finite element method
