航空科学技术2024，Vol.35Issue(12)：87-95,9.DOI:10.19452/j.issn1007-5453.2024.12.011
液压阀柔性杆17-4PH棒料初始残余应力及加工变形试验研究
Experimental Study on Initial Residual Stress and Machining Deformation of 17-4PH Hydraulic Valve Flexible Rod Material
摘要
Abstract
Hydraulic valve flexible rods are typical components with low rigidity,and such parts commonly experience out-of-tolerance deformation during machining.Existing studies mainly focus on controlling part deformation during the cutting process.This paper investigates the initial residual stress of 17-4PH stainless steel rods from different material batches and under various heat treatment conditions,as well as its impact on machining deformation.Using X-ray diffraction,the axial and circumferential initial residual stresses of rods from different batches and heat treatment processes were measured.The residual stress distribution patterns and the effects of material batches and heat treatment processes on residual stress were analyzed.Through cutting experiments,the influence of material batches and heat treatment processes on the final machining deformation of parts was explored,and the optimal material batch and heat treatment process were determined.This study provides a reference for high-precision and efficient machining of hydraulic flexible rods.关键词
初始残余应力/弱刚度/变形控制/17-4PH不锈钢/X射线衍射Key words
initial residual stress/low rigidity/deformation control/17-4PH stainless steel/X-ray diffraction分类
机械制造引用本文复制引用
刘昊林,刘春青,高尚德,徐瑞,张伟,杨昀..液压阀柔性杆17-4PH棒料初始残余应力及加工变形试验研究[J].航空科学技术,2024,35(12):87-95,9.基金项目
航空科学基金(20220007053001) Aeronautical Science Foundation of China(20220007053001) （20220007053001）
