Transactions of Materials and Heat Treatment

Title：Calculation of side roller displacement for four-roll bending plate process

Authors： LI Sen CHEN Fu-lin LI Bin

Unit： Nanjing University of Aeronautics and Astronautics

KeyWords： four-roll bending machine side of the roll displacement springback elastic-plastic

ClassificationCode：TG333

year,vol(issue):pagenumber：2011,36(6):76-79

Abstract：

During the bending process of four-roller bending machine, the curvature radius of the cylindrical part depends mainly on the displacement of the side roller. In the actual production process, the determination of the displacement of side rollers depends on the workers' experiences, needing repeated trials with certain blindness. A formula of the plate bending roll rebound radius during the four-roller bending process was derived based on the basic theory of elastic-plastic mechanics. A calculation of the side roller displacement was presented through mathematics-mechanical analysis to guide the production. Based on this, the whole calculation process was realized with VC++ programming. The similarity of proposed calculation and experimental results was verified compared with examples and experimental results. Based on the formula, the side roller displacement can be more accurate through a few experimental bending processes.

Funds：

Reference：

[1]邢伟荣. 卷板机的现状与发展[J]. 锻压装备与制造技术, 2010,(2):10-16.

[2]Hua M, Lin Y H. Large deflection analysis of elastoplastic plate in steady continuous four-roll bending process[J]. International Journal of Mechanical Sciences,1999,41:1461-1483.

[3]莫施宁.弯卷机和矫平机[M].徐鲤庭,译.北京：机械工业出版社, 1958.

[4]茅云生，侯磊，王呈芳. 板材滚弯成形的理论计算与自动控制模型[J]. 中国造船, 2003, 44(2): 74-80.

[5]Hua M,Cole I M,Baines K, et al. A formulation for determining the single-pass mechanics of the continuous four-roll thin plate bending process[J].Journal of Materials Processing Technology,1997,67:189-194.

[6]陈毓勋. 板材与型材弯曲回弹控制原理与方法[M].北京：国防工业出版社, 1990.

[7]刘鸿文. 材料力学[M].北京：高等教育出版社, 2004.

[8]赵明生. 机械工程手册[M]．北京：机械工业出版社，1999.

[9]孙鑫，余安萍. VC++深入详解[M].北京：电子工业出版社, 2006.

[10]茅云生，向胜，邵天芬. 板板材滚弯成形理论及自动控制的研究进展[J]. 船海工程, 2001,(6):18-31.

Service：

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