Transactions of Materials and Heat Treatment

Title：Mathematical mechanics analysis of stretch bending process

Authors： ZHU Zheng-guang YANG Xiao-hong (School of Mechanical Engineering Hebi College of Vocation and Technology Hebi 458030 China)

Unit：

KeyWords： stretch bending residual stress elastic-plastic material hardening modulus

ClassificationCode：TG356

year,vol(issue):pagenumber：2008,33(3):152-154

Abstract：

At present,the simple bending process can not solve the problems during the machinery manufacture.A stretch bending process was introduced using stretch bender additional tensile to do the theoretical analysis of the residual stress produced in stretch bending.The obtained stretch bending force might be smaller than the material yield stress.It is proved that the plate inner layer stress added value is not big without considering the plastic distortion of the additional stretch.The inner layer stress is increased almost by 2 times after stretching and bending.The main problems of spring back and large bending radius for ordinary stretch bending were solved to make the bending process to be applied more widely in the field of machinery manufacture.

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Reference：

[1]张珂,臧顺来,郭成.板料弯曲成形数值模拟参数敏感性分析[J].锻压技术,2007,32(2):126-129.
[2]纪莲清,谢欢.内孔翻边时变形区应力应变规律研究[J].锻压技术,2007,32(1):20-23.
[3]刘俊生,张彩丽,郑其明,等.管件局部加热缩口、镦粗复合模设计与成形工艺[J].锻压技术,2006,31(4):57-58.
[4]汪大年.塑形成形原理[M].北京:机械工业出版社,1984.
[5]肖景容,姜奎华.冲压工艺与模具设计[M].北京:机械工业出版社,2000.
[6]钟毓斌.冲压工艺与模具设计[M].北京:高等教育出版社,2000.
[7]成虹.冲压工艺学[M].2版.北京:机械工业出版社,2002.

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