不同模具齿形下管壳件缩径成形有限元分析  

Finite Element Analysis of Tube Shell Component Reduction Forming under Different Mold Profiles

作　　者：李红军[1,2] 詹劲 张弛 张成俊[1,2] 杜玮 陈伟[1,2] LI Hongjun;ZHAN Jin;ZHANG Chi;ZHANG Chengjun;DU Wei;CHEN Wei(Wuhan Textile University,Wuhan 430073,China;Hubei Provincial Engineering Research Centre for Intelligent Assembly of Industrial Detonators,Wuhan 430020,China)

机构地区：[1]武汉纺织大学,武汉430073 [2]工业雷管智能装配湖北省工程研究中心,武汉430020

出　　处：《精密成形工程》2025年第3期207-215,共9页Journal of Netshape Forming Engineering

基　　金：国家自然科学基金青年科学基金(52108221);湖北省科技创新人才计划(2023DJC075)。

摘　　要：目的提高管壳体缩径成形工艺的成形质量,探究不同模具齿形对管壳件缩径成形过程的影响。方法基于ABAQUS有限元模拟软件,利用隐式动力学算法,建立管壳件环矢缩径工艺有限元模型,在模具齿形为梯形、矩形、三角形、弧形条件下,研究不同模具下管壳件缩径成形工艺的等效应力、应变及表面特征。结果沿轴向路径,不同模具下的管壳件应力均呈现由变形区到管件两端逐渐递减的趋势,但在矩形和三角形模具下,管壳件应力在模具边角处出现先增大再减小的趋势。沿径向路径,三角形模具下的管壳件应变呈“M”形分布趋势,其余模具下管件应变则近似呈“W”形分布趋势。结论在管壳件缩径成形工艺中,选择合适的模具齿形能有效提高管壳件变形后的结构稳定性并使管壳件的整体塑性变形趋于稳定,梯形模具下管件变形后的结构稳定性最强,三角形模具下的最弱。In order to improve the quality of the tube shell under reduction forming process,the work aims to investigate the effect of different mold profiles on the reduction forming process of tube shell components.Based on ABAQUS finite element simulation software,a finite element model of the circumferential reduction process for tube components was established by im-plicit dynamic algorithm.The equivalent stress,strain and surface characteristics of tube shell component reduction process un-der trapezoidal,rectangular,triangular and curved mold profiles were studied.Along the axial path,the stress of the tube shell component under different molds gradually decreased from the deformation zone to the two ends of the tube,but under the rec-tangular and triangular molds,the stress of the tube shell component experienced an initial ascent followed by a descent at the mold corners.Along the radial path,the strain distribution trend of the tube shell component under the triangular mold was in“M”shape,and the strain distribution trend of the tube shell components under other molds was approximately in“W”shape.During the process of tube shell component reduction forming,selecting the appropriate mold profile can effectively improve the structural stability of tube shell component after deformation and make the overall plastic deformation stable.The structural stability of the tube after deformation under the trapezoidal mold profile yields the highest structural stability,while that under the triangular mold profile presents the least stability.

关 键 词：管壳件 环向缩径 表面特征 起皱均匀 ABAQUS 有限元分析 

分 类 号：TG376.9[金属学及工艺—金属压力加工]