锻压技术

点压渐进成形工具头运动轨迹形成方法研究

英文标题：Research on the method of motion trajectory of tool-head in incrementally pressing forming

作者：张志刚王进李丽华姜虎森高波高松松

分类号：TG386

出版年,卷(期):页码：2015,40(3):70-73

摘要：

在普通渐进成形工艺的基础上，结合CNC成形锤渐进成形工艺特点，通过改变成形时的刀路轨迹，将二维等高线层上的点离散为正弦曲线上的插值点，使工具头在每一层上有规律地进行跳跃式运动，从而形成新的点压式渐进成形工艺。在数控渐进成形机床上，使用点压渐进成形工艺成形出65°定角度圆形口锥杯以及方形口锥杯。结果表明，使用这种方法修改后的运动轨迹能在数控渐进成形机床上实现加工，验证了点压式渐进成形工艺的可行性，并且可以用于不同形状的刀路轨迹。

On the basis of sheet metal incremental forming process, combining with the characteristics of CNC forming hammer incremental forming process, the incrementally pressing forming (IPF) process could be carried out through changing the trajectories of the incremental forming, dispersing the points on the contour into interpolation points on the sine curve and making the tool-head jump movement regularly on each layer. On the NC incremental forming machine, the 65 ° angle of fixed round mouth cup and the square mouth cup were formed by incrementally pressing forming process. The results show that the trajectory modified by this method can be processed on the NC incremental forming machine. Therefore, the feasibility of the incrementally pressing forming process is validated, and this method can be used for trajectories with different shapes.

基金项目：

国家自然科学基金资助项目（51205217）

张志刚（1990-），男，硕士研究生通讯作者：王进（1978-），男，博士，副教授

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): 75-77.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): 75-77.
［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］Liu J, Mo J H, Huang S H. Sheet metal die-less forming and its tool path generation based on STL files [J]. International Journal of Advanced Manufacturing Technology, 2004, 23 (9-10): 696-699.
［4］周晚林, 王建伟, 刘丹成, 等.板料渐进成形工艺等高线图生成方法[J]. 南京航空航天大学学报,2009,41(5): 556-558.Zhou W L, Wang J W, Liu D C, et al. Method to generate contour figure for incremental sheet metal forming Technology[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2009, 41(5): 556-558.
［5］蔡改贫，张仲凯，姜志宏. 金属板材振动单点渐进成形力学分析[J]. 机械科学与技术,2010,29(7):915-920.Cai G P，Zhang Z K，Jiang Z H. Mechanical analysis of sheet metal vibration incremental forming [J]. Mechanical Science and Technology for Aerospace Engineering, 2010,29(7):915-920.
［6］刘伟, 张红婴, 薄板振动渐进精密成形工艺及变形力分析[J]. 热加工工艺, 2010, 39 (11):1-3.Liu W, Zhang H Y. Analysis of deformation resistance of metal sheet in incremental precision forming with vibration [J]. Hot Working Technology, 2010, 39 (11):1-3.
［7］ALLWOOD J M, UTSUNOMIYA H. A survey of flexible forming processes in Japan [J]. International Journal of Machine Tools and Manufacture, 2006, 46(15):1939-1960.
［8］高锦张. 板料数控渐进成形技术[M]. 北京：机械工业出版社,2012.Gao J Z. Technology of NC Incremental Sheet Forming[M]. Beijing：China Machine Press, 2012.
［9］肖旭东, 王永军,张纪春,等. 金属板料点压渐进成形试验与模拟研究[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]. Chinese Journal of Mechanical Engineering, 2013, 49(16): 107-113.
［10］肖旭东, 王永军, 魏生民, 等. 板料点压渐进成形锥台形零件的方法：中国, 201210339005.8[P]. 2012-12-19.Xiao X D, Wang Y J, Wei S M, et al. A incrementally pressing forming method of conical sheet parts：China, 201210339005.8[P].2012-12-19.

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