锻压技术

有模单点渐进成形工艺参数对1060铝合金成形性能的影响

英文标题：Influence of process parameters of single-point incremental forming with die on formability of aluminum alloy 1060

作者：安治国庞鹏辉陈科衡孙志昆段文卿

单位：重庆交通大学

分类号：TH16; TG306

出版年,卷(期):页码：2017,42(11):94-98

摘要：

为了研究各工艺参数对有模单点渐进成形直壁筒形件成形性能的影响，采用正交实验法，对层间距、工具头半径、进给速度和成形道次4个工艺参数进行优化设计，对板料变形区厚度进行仿真研究，并通过极差分析，得出各工艺参数对成形后板料最小厚度的影响。研究结果表明：各工艺参数中，成形道次数对板料成形最小厚度影响最大，工具头半径影响最小；对1 mm 厚的1060铝合金板进行优化后，最小成形厚度为0.389 mm，比2道次成形后的最小厚度0.242 mm提高了60%。因此，在有模单点渐进成形直壁筒形件过程中，成形时间允许时，可适当增加成形道次，提高成形质量。

In order to study the influences of each process parameter on the forming performance of single-point incremental forming with die of straight-wall cylindrical parts, four parameters about layer spacing, tool head radius, feed rate and forming passes were optimized and designed by orthogonal test respectively. Then, the thickness of sheet deformation zone was simulated, and the influences of each process parameter on the minimum thickness of sheet after forming were obtained by range analysis. The research indicates that in the process parameters of sheet metal forming, the largest influence on the minimum thickness is forming passes, while tool head radius is the smallest. After optimizing the aluminum alloy 1060 plate with 1 mm thickness,the optimized thickness of sheet is 0.389 mm, which is 60% higher than the minimum thickness of 0.242 mm after two passes. Therefore, in the incremental forming process of strainght-wall cylindrical parts,the number of forming passes can be appropriately increased under conditions permitted by forming time to improve the forming qullity.

基金项目：

重庆市科委基础科学与前沿技术研究（重要）项目（cstc2015jcyjB0333）

作者简介：安治国（1976-），男，博士，副教授 E-mail：azgcqu@163.com 通讯作者：庞鹏辉（1993-），男，硕士研究生 E-mail：921949736@qq.com

参考文献：

[1]Emmens W C, Sebastiani G, Boogaard A H V D. The technology of incremental sheet forming-a brief review of the history [J]. Journal of Material Processing Technology, 2010, 210(8): 981-997.

[2]Smith J, Malhotra R, Liu W K, et al. Deformation mechanics in single-point and accumulative double-sided incremental forming [J]. International Journal of Advanced Manufacturing Technology, 2013, 69(5): 1185-1201.

[3]Verbert J, Belkassem B, Henrard C, et al. Multi-step toolpath approach to overcome forming limitations in single point incremental forming [J]. International Journal of Material Forming, 2008, 1(1):1203-1206.

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

[5]Xu D，Wu W，Malhotra R，et al. Mechanism investigation for the influence of tool rotation and laser surface texturing (LST) on formability in single point incremental forming[J]．International Journal of Machine Tools and Manufacture, 2013, 73(10): 37-46.

[6]Emmens W C，Boogaard A H．An overview of stabilizing deformation mechanisms in incremental sheet forming [J]. Journal of Materials Processing Technology, 2009, 209(8): 3688-3695.

[7]Ham M, Jeswiet J. Dimensional accuracy of single point incremental forming [J].International Journal of Material Forming, 2008,1(1):1170-1174.

[8]Lu B, Chen J, Ou H, et al. Feature-based tool path generation approach for incremental sheet forming process [J]. Journal of Materials Processing Technology, 2013, 213(7): 1221-1233．

[9]Martins P, Bay N, Skjoedt M. Theory of single point incremental forming[J]. Manufacturing Technology-CIRP Annals, 2008, 57(1): 247-252.

[10]Attanasio A, Ceretti E, Giardini C, et al. Asymmetric two point incremental forming improving surface quality and geometric accuracy by tool path optimization[J].Journal of Materials Processing Technology,2008,197(1):59-67.

[11]周六如，郑志强，罗忠名.工具转速对AZ31B镁合金圆锥盒摩擦热渐进成形板料温度及成形能力的影响[J]. 锻压技术，2016,41(9):31-34.

Zhou L R, Zheng Z Q, Luo Z M. Influence of tool speed on sheet temperature and formability of magnesium alloy AZ31B cone box in frictional heat incremental forming[J]. Forging ＆ Stamping Techonlogy,2016,41(9):31-34.

[12]朱虎，唱晓东，刘一波，等.数控渐进成形中挤压方向对钣金件厚度均匀化影响[J]. 锻压技术，2016,41(10):32-37.

Zhu H, Chang X D, Li Y B, et al. Influence of extrusion direction on uniformity of metal part thickness in CNC incremental forming[J]. Forging ＆ Stamping Technology, 2016,41(10):32-37.

服务与反馈：

【文章下载】【加入收藏】