中国机械工程2025，Vol.36Issue(7)：1416-1422,7.DOI:10.3969/j.issn.1004-132X.2025.07.003
304不锈钢极薄带微流道气胀成形材料流动行为及微观组织
Flow Behavior and Microstructure of 304 Stainless Steel Ultra-thin Strips in Microchannel Gas Forming
摘要
Abstract
Microchannel gas forming experiments and numerical simulations on 304 stainless steel ultra-thin strips were conducted.Stress distribution,strain distribution,and thickness variation pat-terns at different locations of the blanks in forming processes were investigated.The evolution mecha-nism of the microstructure at typical positions of the gas formed specimens was analyzed.The compar-ison between experimental and simulated channel profiles was performed to validate the reliability of the numerical simulation results.The results show that under 25 MPa and room temperature condi-tions,the thickness at the upper fillet decreases from 100 μm to 84.05 μm,identifying the region is easy to rupture in forming.The simulated channel depth was as 619.67 μm,while the experimental depth was as 556.34 μm.Post-forming analyses reveal that grain size reduces,dislocation density in-creases,and low-angle grain boundaries raised from 58.04％to 62.61％,which demonstrate the sig-nificant work hardening effects.关键词
304不锈钢极薄带/气胀成形/微流道/材料流动行为/有限元数值模拟Key words
304 stainless steel ultra-thin strip/gas forming/micro-channel/material flow behav-ior/finite element numerical simulation分类
矿业与冶金引用本文复制引用
张鹏,朱学卫,于保洋,武天枫,朱锦州..304不锈钢极薄带微流道气胀成形材料流动行为及微观组织[J].中国机械工程,2025,36(7):1416-1422,7.基金项目
中央引导地方科技发展资金(YDZJSX2022A023) （YDZJSX2022A023）
海安太原理工大学先进制造与智能装备产业研究院开放研发项目(2023HA-TYUTKFYF018) （2023HA-TYUTKFYF018）
第二十七届中国科协年会学术论文 （）
