TC4棒材热张力矫直数值模拟及工艺参数优化  

Numerical simulation of thermal tension straightening and optimization of process parameters on TC4 bar

作　　者：王保琳 黄文斌 王富强 柏春光[4] 穆生龙 王冉 张志强[4] WANG Baolin;HUANG Wenbin;WANG Fuqiang;BAI Chunguang;MU Shenglong;WANGRan;ZHANG Zhiqiang(School of Material Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China;The First Military Representative Office of the Air Force Armament Department in Shenyang,Shenyang 110850,Liaoning,China;Shenyang Aircraft Industry(Group)Co.,Ltd.,Shenyang 110850,Liaoning,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China)

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]空军装备部驻沈阳地区第一军事代表室,辽宁沈阳110850 [3]沈阳飞机工业(集团)有限公司,辽宁沈阳110850 [4]中国科学院金属研究所,辽宁沈阳110016

出　　处：《钢铁钒钛》2025年第1期67-74,共8页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金委,青年基金项目(编号:52202271);辽宁省科技厅,省博士启动基金项目(编号:2023-BS-144);辽宁省教育厅青年项目,(编号:JYTQN2023375)。

摘　　要：钛合金棒材在生产加工过程中通常伴随着形状弯曲,热张力矫直是一种有效的矫直方式。运用有限元模拟软件ABAQUS建立了TC4棒材的热张力矫直模型,系统研究了矫直温度、保温时间和拉伸伸长量等矫直工艺参数对棒材直线度和残余应力的影响,并结合矫直物理试验对矫直工艺参数进行优化。结果表明,矫直的温度越高、保温时间越长,热拉伸量越大,TC4钛合金棒材的直线度越小,残余应力也越小;结合实际生产工况,确定750℃的矫直温度,2%的热拉伸量和10 s的保温时间为TC4钛合金棒材矫直的最佳工艺参数。Shape bending often occurs during the production process of titanium alloy bars,and thermal tension straightening is an effective straightening method.In this study,the thermal tension straightening model of TC4 bar was established by using the finite element simulation software ABAQUS.The influence of straightening process parameters such as straightening temperature,holding time and tensile elongation on the straightness and residual stress of TC4 bar was studied systematically.And the optimized straightening process parameters were obtained combined with the physical experiment of straightening.The results show that the higher the straightening temperature,the longer the holding time and the greater the thermal tensile amount,the smaller the straightness and the smaller the residual stress of TC4 bar.In view of the actual production conditions,the optimal process parameters for the straightening of TC4 titanium alloy bar are determined with a straightening temperature of 750℃,a thermal tensile amount of 2%and a holding time of 10 s.

关 键 词：TC4棒材 热张力矫直 有限元模拟 工艺参数优化 

分 类 号：TF823[冶金工程—有色金属冶金]