加载路线对换热器用管式翅片级进冲压工艺的影响

祝梦臣; 李文霞; 程欢; 张百顺; 汪洋; 李萍

doi:10.3969/j.issn.1674-6457.2026.01.025

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精密成形工程 ›› 2026, Vol. 18 ›› Issue (1) : 266-275. DOI: 10.3969/j.issn.1674-6457.2026.01.025

先进制造技术与装备

加载路线对换热器用管式翅片级进冲压工艺的影响

祝梦臣¹, 李文霞¹, 程欢¹, 张百顺², 汪洋², 李萍^2,*

作者信息 +

Effects of Loading Paths on the Progressive Stamping Process of Tube Fins for Heat Exchangers

ZHU Mengchen¹, LI Wenxia¹, CHENG Huan¹, ZHANG Baishun², WANG Yang², LI Ping^2,*

Author information +

文章历史 +

摘要

目的为明确加载路径和坯料形状对级进拉深过程中金属流动规律及最终成形质量的影响,采用有限元模拟的方法对翅片级进拉深第一道次成形进行了研究。方法对单次下压单个或多个冲头、矩形或圆形坯料进行有限元模拟,根据所得结果分析拉深过程中金属的流动规律及加载路线对成形质量的影响。结果在等拉深深度条件下,相较于多冲头系统,单冲头成形产生了更高的最大主应变和减薄率,但二者应变梯度分布呈现相似特征;圆形坯料因各向异性效应,在单凸包成形时表现出显著差异化的应变分布特征。而当凸包密度增加后,坯料形状对应变的影响权重下降。结论加载路径主要调控应变/厚度的变化,而坯料几何参数则主导应变分布的模式,这为薄壁管式翅片成形工艺优化提供了理论依据。

Abstract

To clarify the effect of loading paths and blank shapes on the metal flow patterns and the final forming quality during the progressive deep drawing process, the work aims to study the first stage of progressive deep drawing of the fins through finite element simulations. Finite element simulations were conducted for a single press of one or multiple punches with rectangular or circular blanks. Based on the results, the flow patterns of the metal during deep drawing and the effect of loading paths on forming quality were analyzed. Under equal drawing depth conditions, single-punch forming generated higher maximum major strain and thinning rate compared to multi-punch systems, although both exhibited similar strain gradient distributions. Due to anisotropy effects, circular blanks showed significantly differentiated strain distributions during single-bump forming. However, when bump density increased, the effect of the blank shape on strain diminished. Loading paths primarily regulate strain/thickness variation, while geometric parameters of blanks dominantly govern strain distribution patterns. These findings provide a theoretical basis for optimizing thin-walled fin forming processes.

导出引用

祝梦臣, 李文霞, 程欢, 张百顺, 汪洋, 李萍. 加载路线对换热器用管式翅片级进冲压工艺的影响[J]. 精密成形工程. 2026, 18(1): 266-275 https://doi.org/10.3969/j.issn.1674-6457.2026.01.025

ZHU Mengchen, LI Wenxia, CHENG Huan, ZHANG Baishun, WANG Yang, LI Ping. Effects of Loading Paths on the Progressive Stamping Process of Tube Fins for Heat Exchangers[J]. Journal of Netshape Forming Engineering. 2026, 18(1): 266-275 https://doi.org/10.3969/j.issn.1674-6457.2026.01.025

中图分类号： TG376

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