材料工程2025，Vol.53Issue(4)：15-22,8.DOI:10.11868/j.issn.1001-4381.2024.000086
6061铝合金预强化高性能冲压成形工艺
High-performance stamping forming process of 6061 aluminum alloy with pre-hardening
摘要
Abstract
The 6061 aluminum alloy billets are subjected to solution quenching treatment under a solution heat treatment condition of 550 ℃ for 30 min.After quenching,the billets are artificially aged at 140 ℃ for 6 h to 18 h to obtain pre-hardening(PH)billets.The formability and mechanical properties of the pre-hardening 6061 aluminum alloy billets are evaluated using room-temperature Erichsen cupping tests and uniaxial tensile tests.Additionally,the stamping trials for hat-shaped beam components are conducted to verify the feasibility of this technique for engineering applications.The results show that the yield strength(YS)of the PH-12 h pre-hardening billets is 186 MPa higher than that of the O-temper billets,and the tensile strength(TS)is 215 MPa higher than that of the O-temper billets,while the elongation(EL)and cupping values are comparable to those of the O-temper billets.The PH-18 h pre-hardening billets exhibit a maximum tensile strength of 391 MPa after 10％deformation,significantly exceeding that of the T6-temper aluminum alloy,demonstrating that the pre-hardening billets possess excellent strength-ductility balance.Furthermore,the hat-shaped beam components formed from pre-hardening billets exhibit tensile and yield strengths superior to those of the T6-temper aluminum alloy.关键词
6061铝合金/冷冲压/预强化/力学性能/成形性能Key words
6061 aluminum alloy/cold stamping/pre-hardening/mechanical property/formability分类
金属材料引用本文复制引用
董明杨,胡志力,刘鹏..6061铝合金预强化高性能冲压成形工艺[J].材料工程,2025,53(4):15-22,8.基金项目
湖北省重点研发计划(2021baa200,2022aaa001) （2021baa200,2022aaa001）
湖北省自然科学基金项目(2023AFA069) （2023AFA069）
湖北省隆中实验室自主创新项目(2022ZZ-04) （2022ZZ-04）
