锻压技术

基于响应面法的渐进成形参数优化

英文标题：Parameter optimization of incremental sheet metal forming by response surface method

作者：陈蕴弛李芳王秋成

单位：浙江工业大学

分类号：TG386

出版年,卷(期):页码：2014,39(11):11-15

摘要：

金属板材的可成形性是制约渐进成形技术发展的一大障碍，板材的可成形性可以通过零件侧壁厚度直观体现，过度减薄会造成制件的破裂。对工具头尺寸、轴向进给量、成形角和板材厚度对板材减薄率的影响进行了分析。利用拉丁方试验设计法进行数据采样，并对数据进行方差分析，得出试验参数对减薄率影响的主次顺序。结果表明，影响板材渐进成形减薄率的主要因素是成形角度、轴向进给量与工具头直径，次要因素是板材厚度。在此基础上采用响应面方法构建了减薄率的近似优化模型，并通过序列二次规划算法（SQP）对近似模型进行优化分析得到，当板厚为1.5 mm、工具头大小为17 mm、轴向进给量为0.85 mm时，板材厚度分布均匀，减薄率大小与理论数值接近。

Formability is an obstacle to the development of incremental sheet forming (ISF). Formability of sheet metal can be estimated by the side wall thickness of parts, and excessive thinning will lead to the fracture of sheet metal. The influences of tool head size, axial feed, forming angle and sheet metal thickness on the thinning rate were investigated. The Latin square design of experiment was used for sampling of data, and the order of parameter influence on the thinning rate was obtained through variance analysis. The results show that forming angle, axial feed and tool head diameter are the main factors that affect the sheet metal thinning rate in the incremental sheet forming process. On the basis above, the approximate optimization model for thinning rate was set up by the response surface method and analyzed by sequential quadratic programming (SQP). When the sheet metal thickness is 1.5 mm, tool head diameter is 17 mm and axial feed is 0.85 mm, the thickness distribution of sheet metal is regarded as uniformity, and thinning rate is consistent with the theoretic result.

基金项目：

浙江省自然科学基金资助项目（LZ12E5003）

陈蕴弛（1990-），女，硕士研究生

参考文献：

［1］松原茂夫. 板材の逐次逆张出し·绞り成形[A].平成7年度塑性加工春季讲演会论文集[C].调布：塑性加工会，1995.Matsuhara Shio.Incremental forming method of plates[A].The Symposium of Spring Lecture of Plastic Processing in the 7th Year of Heisei[C]. Chofu: Plastic Processing Society, 1995.
［2］肖士昌，高锦张，贾俐俐，等.单道次渐进成形锥形件壁厚均匀临界成形角的研究[J]. 锻压技术，2012，37(1):49-54.Xiao S C，Cao J Z，Jia L L，et al，Research on critical forming angle of uniform thickness in single-path incremental forming for conical part[J].Forging & Stamping Technology，2012，37(1):49-54.
［3］莫建华,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):2138-2142.Mo J H，Ding Y，Huang S H. Research on tool-path optimization of sheet metal numerical control single point increment forming[J].China Mechanical Engineering，2003,14(24):2138-2142.
［4］ Ceretti E, Giardini C, Attanasio A. Experimental and simulative results in sheet incremental forming on CNC machines[J]. Journal of Materials Processing Technology,2004, 152:176-184.
［5］马琳伟, 莫健华.基于有限元仿真的金属板材单点渐进成形分析[J].塑性工程学报，2007，14(6):96-100.Ma L W，Mo J H. The mechanical analysis of sheet metal incremental forming by numerical simulation based on solid element[J]. Journal of Plasticity Engineering，2007，14（6）: 96-100.
［6］赵仕宇,周超,詹艳然.基于数值模拟的圆锥台件渐进成形过程研究[J].热加工工艺,2013,42(15): 101-104.Zhao S Y，Zhou C，Zhan Y R. Study on incremental forming of cone part based on numerical simulation [J]. Hot Working Technology，2013,42(15): 101-104.
［7］ Kim T J, Yang D Y. Improvement of formability for the incremental sheet metal forming process [J]. International Journal of Mechanical Sciences, 2000, 42: 1271-1286.
［8］Pohlak M, Kuttner R, Majak J, et al. Simulation of incremental forming of sheet metal products [A].4th International DAAAM Conference[C].Estonia, 2004.
［9］Hirt G, Ames J, Bambach M, et al. Forming strategies and process modeling for CNC incremental sheet forming[J]. Annals of CIRP, 2004,53(1)：203-206.
［10］ Kathryn Jackson, Julian Allwood. The mechanics of incremental sheet forming [J]. Journal of Materials Processing Technology, 2009,209:1158-1174.
［11］ Ambrogio G, De Napoli L. Application of incremental forming process for high customized medical product manufacturing [J]. Journal of Materials Processing Technology, 2005, 162: 156-162.

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