重庆理工大学学报2025，Vol.39Issue(11)：160-166,7.DOI:10.3969/j.issn.1674-8425(z).2025.06.019
淬火态2xxx系铝合金曲面翻孔工艺优化
Finite element optimization of punching process for quenched 2xxx series aluminum alloy curved surface
摘要
Abstract
This paper investigates the optimal process parameters of quenched 2xxx series aluminum alloy curved parts under different process conditions.Orthogonal experiments are conducted on the countersinking process with varied process parameters,selecting pre-drilled hole diameter,aging temperature,and punch diameter as experimental factors,with four levels set for each factor.The effects of different factors on the countersinking are explored and the optimal process parameters are determined.The height of the formed countersink is severely affected by the pre-drilled hole diameter,with smaller pre-drilled hole diameters resulting in higher countersink heights,and vice versa.The post-forming wall thickness is influenced by aging temperature and pre-drilled hole diameter.Within the range studied,higher temperatures and smaller pre-drilled hole diameters result in smaller average wall thickness,and vice versa.The countersink diameter is greatly affected by the punch diameter.Experiments indicate the workpiece undergoes springback during demolding,thus a punch diameter of 60.4 mm is closer to the theoretical diameter.The maximum stress during countersinking is primarily affected by temperature while different pre-drilled holes exert relatively little influence.To get samples with a countersink diameter of 60 mm,the optimal process parameters consist of a pre-drilled hole diameter of 40 mm,a temperature of 200℃,and punch diameter of 60.4 mm.关键词
2xxx系铝合金/曲面/翻孔/工艺参数/时效温度Key words
2xxx series aluminum alloy/curved surface/punching/process parameters/temperature分类
矿业与冶金引用本文复制引用
唐杰,李明材..淬火态2xxx系铝合金曲面翻孔工艺优化[J].重庆理工大学学报,2025,39(11):160-166,7.基金项目
国家自然科学基金民航联合重点项目(U2233212) （U2233212）
天开高教科创园企业研发专项项目(23YFZXYC00035) （23YFZXYC00035）
