Transactions of Materials and Heat Treatment

Title：Research on numerical simulation of critical flange parameters for hole-flanging in single pass incremental forming of 1060 aluminum sheet

Authors：

Unit：

KeyWords：

ClassificationCode：TG379.6

year,vol(issue):pagenumber：2020,45(1):186-192

Abstract：

A finite element model was established by software DYNAFORM to study the hole-flanging in single pass incremental forming of 1060 aluminum sheet, and the influence of the size for pre-fabricated aperture on the distribution law of wall thickness was analyzed. The results show that a small size of pre-fabricated aperture results in the central thinning zone in the flange, and when the pre-fabricated aperture increases, the wall thickness presents linearly variation zone and evenly distributed zone to vanish the central thinning zone. Therefore, when the pre-fabricated aperture is larger, the flanged wall thickness is distributed linearly. Furthermore, the critical pre-fabricated apertures corresponding to different flanged apertures and the flange heights corresponding to the critical pre-fabricated apertures were investigated under five kinds of sheet thicknesses, and the relationship between the flanged aperture and the critical pre-fabricated aperture as well as the critical pre-formed aperture and the flange height were fitted to a parametric equation. The results show that when the thickness of sheet increases, the critical pre-fabricated aperture reduces, and the forming limit of flanging part increases.

Funds：

先进数控技术江苏省高校重点建设实验室基金开放项目（KXJ05017）

作者简介：张沈杨（1994-），男，硕士研究生 E-mail：320483205@qq.com 通讯作者：高锦张（1963-），男，硕士，副教授 E-mail：101005299@seu.edu.cn

Reference：

[1]高锦张. 板料数控渐进成形技术[M]. 北京：机械工业出版社, 2011.

Gao J Z. NC Incremental Sheet Forming Technology[M]. Beijing: China Machine Press, 2011.

[2]莫健华, 韩飞. 金属板材数字化渐进成形技术研究现状[J]. 中国机械工程, 2008, 19(4): 491-497.

Mo J H, Han F. State of the arts and latest research on incremental sheet NC forming technology
［J］.China Mechanical Engineering，2008，19（4）：491-497.

[3]卜小芬. 圆孔翻边渐进成形的模拟研究[D]. 南京: 东南大学, 2017.

Bu X F. Simulation Study on Hole-flanging in Incremental Forming [D]. Nanjing: Southeast University, 2017.

[4]崔震，高霖，陆启建. 数控渐进成型技术在圆孔翻边中的应用[J]. 机械工程材料,2008,32(7):5-8.

Cui Z, Gao L, Lu Q J. Application of CNC incremental forming in hole-flanging process[J]. Materials for Mechanical Engineering, 2008,32(7):5-8.

[5]Duflou J R, Verbert J, Belkassem B, et al. Process window enhancement for single point incremental forming through multi-step toolpaths[J]. CIRP Annals, 2008, 57(1): 253-256.

[6]Hussain G, Gao L, Hayat N, et al. A new formability indicator in single point incremental forming [J]. Journal of Materials Processing Technology, 2008, 11: 1-15.

[7]Ambrogio G, Cczza V, Filice L, et al. An analytical model for improving precision in single point incremental forming [J]. Journal of Materials Processing Technology, 2007, 191(1-3): 92-95.

[8]赵仕宇,周超,詹艳然. 5052铝合金薄板数控渐进成形制件表面质量分析[J].塑性工程学报,2018,25(6):34-40.

Zhao S Y, Zhou C, Zhan Y R. Surface quality analysis of 5052 aluminum alloy thin sheet workpieces formed by numerical control incremental forming[J]. Journal of Plasticity Engineering, 2018, 25(6):34-40.

[9]高锦张. 塑性成形工艺与模具设计 [M]. 北京: 机械工业出版社, 2008.

Gao J Z. Metal Molding Technology & Design of Models [M]. Beijing: China Machine Press, 2008.

[10]高锦张,曹宇,贾俐俐. 单道次渐进成形圆孔翻边的数值模拟[J]. 塑性工程学报,2015,22(3):79-85，97.

Gao J Z, Cao Y, Jia L L. Numerical simulation for hole flanging by single stage incremental forming[J]. Journal of Plasticity Engineering, 2015,22(3):79-85，97.

[11]谷岩波,王辉,王会廷.AA5754 铝合金板材渐进成形壁厚均匀性研究[J].锻压技术,2018,43(1):33-41.

Gu Y B, Wang H, Wang H T, et al.Study on wall thickness uniformity in incremental forming for aluminum alloy AA5754 sheet[J]. Forging & Stamping Technology, 2018, 43(1):33-41.

[12][JP3]王泓宇,李细锋,陈军. AA1100 铝合金渐进成形的微观组织与力学性能分析[J].塑性工程学报,2018,25(6):180-188.

Wang H Y, Li X F, Chen J. Analysis on microstructure and mechanical properties of AA1100 aluminum alloy in incremental sheet forming[J]. Journal of Plasticity Engineering,2018,25(6):180-188.

[13]顾仲，高锦张. 1060铝板单道次渐进成形圆孔翻边高度与壁厚分布的研究[J]. 锻压技术，2019,44（4）：48-56.

Gu Z，Gao J Z, Study on height and wall thickness distribution of hole-flanging by single-pass incremental forming for 1060 aluminum plate[J]. Forging ＆ Stamping Technology, 2019,44（4）：48-56.

Service：

【This site has not yet opened Download Service】【Add Favorite】