锻压技术

双凸板材件的数控渐进成形研究板料成形

英文标题：Study on CNC incremental forming for double convex sheet metal part

作者：朱虎张新迪白金兰于超

单位：沈阳航空航天大学

分类号：TG335.5

出版年,卷(期):页码：2016,41(5):14-19

摘要：

针对数控渐进反向成形中无法直接成形加工双凸板材件的问题，提出了基于双面挤压的双凸板材件数控渐进反向成形方法。该方法通过设计从正反两面可接近各形体的支撑模，并把板材用两个支撑模装夹，从正反两面挤压板材来实现双凸板材件成形。给出了双凸板材件的成形工艺方案和支撑模设计方法，研究了双凸板材件数控渐进反向成形过程数字模拟分析的方法并运用数值模拟分析了该方案的可行性，并且通过成形试验，完成了双凸板材件的制作。研究结果表明，基于双面挤压的数控渐进反向方法可应用于双凸板材件的制作。

For the problem that the double convex sheet metal part could not be directly formed by the CNC incremental negative forming, the method of CNC incremental reverse forming based on double squeezing was proposed. The double convex sheet part was formed by squeezing sheet from both positive and negative sides, after the design of two supporting dies with both sides being close to the sheet part and clamping the sheet. At the same time, the design of supporting dies and the forming process scheme were given. Furthermore, it was studied the method of numerical simulation on the above process, and the feasibility of the method was analyzed by numerical simulation. Finally, a practical double convex sheet metal part was fabricated through the forming experiment. The results show that the method of double convex sheet metal part is obtained by CNC incremental reverse forming based on double squeezing.

基金项目：

国家自然科学基金资助项目(51175351)；辽宁省高等学校优秀人才支持计划资助项目(LR2012006)

朱虎(1964-)，男，博士，教授

参考文献：

［1］莫健华,丁勇, 黄树槐. 金属板材数控单点渐进成形加工轨迹优化研究[J]. 中国机械工程, 2003, 14(24): 2138-2139.Mo J H, Ding Y, Huang S H. Research on tool path optimization of sheet metal numerical control single point incremental forming [J]. China Mechanical Engineering, 2003, 14(24): 2138-2139.
［2］Tisza M. General overview of sheet incremental forming [J]. Journal of Achievements in Materials and Manufacturing Engineering, 2012, 55(1): 113-119.
［3］朱虎，杨晓光. 五轴数控渐进成形干涉检查与修正研究[J]. 机械工程学报, 2014, 50(7): 168-175.Zhu H, Yang X G. A study on the interference detection and correction in 5-axis CNC incremental forming [J]. Journal of Mechanical Engineering, 2014, 50(7): 168-175.
［4］Micari F, Ambrogio G, Filice L. Shape and dimensional accuracy in single point incremental forming state of the art and future trends [J]. Journal of Materials Processing Technology, 2007, 191(1-3): 390-395.
［5］莫建华，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.
［6］肖旭东，王永军，张纪春，等.金属板料点压渐进成形实验与模拟研究[J]. 机械工程学报, 2013, 49(16): 107-113.Xiao X D, Wang Y J, Zhang J C, et al. Experiment and simulation on sheet metal incrementally pressing forming [J]. Journal of Mechanical Engineering, 2013, 49(16):107-113.
［7］Lu B, Chen J, Ou H, et al. Feature-based tool path generation approach for incremental sheet forming process [J]. Journal Materials Processing Technology, 2013, 213(7): 1221-1233.
［8］Zhu H, Li N, Liu Z J. The effect of pressing direction on the 5-axis CNC incremental forming quality [J]. Int. J. Mater. Form., 2012, (5): 227-233.
［9］Sena J I V, Alves de Sousa R J, Valente R A F. Single point incremental forming simulation with an enhanced assumed strain solid-shell finite element formulation [J]. Int. J. Mater. Form., 2010, (3): 963-966.
［10］Luo Y X, He K, Du R X. A new sheet metal forming system based on the incremental punching, part 1: modeling and simulation [J]. The International Journal of Advanced Manufacturing Technology, 2010, 51(5-8): 481-491.
［11］朱虎，鞠晋，张伟.面向数控渐进成形鼓包问题的成形轨迹生成与规划[J]. 锻压技术，2015, 40(5):15-21.Zhu H, Ju J, Zhang W. Generation and planning of the forming path for bump phenomenon in NC incremental forming [J]. Forging & Stamping Technology, 2015, 40(5):15-21.
［12］崔震, 高霖, 徐岩,等. 数控渐进成形中的鼓包问题分析[J]. 机械科学与技术, 2008, 27(12): 1581-1585.Cui Z, Gao L, Xu Y, et al. Analyses of the bump phenomenon in sheet metal incremental forming [J]. Mechanical Science and Technology for Aerospace Engineering, 2008, 27(12): 1581-1585.
［13］韦红余，胡铭明，高霖，等.圆锥形渐进成形制件成形精度研究[J].机械工程学报, 2010, 46(9):193-198.Wei H Y, Hu M M, Gao L, et al. Investigation on forming accuracy of cone type sheet metal incremental forming parts[J]. Journal of Mechanical Engineering, 2010, 46(9):193-198.

服务与反馈：

【文章下载】【加入收藏】