吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (4): 1190-1196.doi: 10.13229/j.cnki.jdxbgxb201604026

• Orginal Article • Previous Articles     Next Articles

Influence factors of profile deformation in NC stretch bending

GU Zheng-wei, LYU Meng-meng, LI Xin, XU Hong   

  1. College of Materials Science and Engineering, Jilin University,Changchun 130022,China
  • Received:2015-12-27 Online:2016-07-20 Published:2016-07-20

RICH HTML

0   

PDF (PC)

91

Abstract: Based on the NC stretch bending of a double curvatures beam of a railway vehicle, the formulae to calculate the profile deformation according to NC codes were developed. The variation trend and the influence factors of the elongation and rotation angle of the profile in NC stretch bending were analyzed. Besides, by importing the real deformation data into the numerical simulation model, the crack defect due to unreasonable elongation was analyzed and the corresponding tests were carried out. Results show that in NC stretch bending, the total elongation of the profile is significantly smaller than that of the tensile cylinder provided by the NC code, and the total rotation angle of the profile is larger than that of the arm. The position of the sliding block has a significant influence on the NC stretch bending of profile. The profile length, jig depth and pre-elongation do not affect the profile elongation in the wrap-stretching stage, but influence the elongation ratio.

Key words: materials synthesis and processing technology, stretch bending, NC code, profile deformation

CLC Number: 

  • TG306
[1] 王胜满. 用于地铁车辆的不锈钢型材拉弯成形缺陷[J]. 吉林大学学报:工学版,2013,43(6):1546-1550.
Wang Sheng-man. Stretch bend forming defects of stainless steel profiles of metro vehicles[J]. Journal of Jilin University (Engineering and Technology Edition),2013,43(6):1546-1550.
[2] 王胜满. 高速动车组端角柱构件的弯曲成形缺陷[J]. 吉林大学学报:工学版,2010,40(增刊1):247-251.
Wang Sheng-man. Forming defects of outside profile pillar parts of CRH train[J]. Journal of Jilin University (Engineering and Technology Edition),2010,40(Sup.1):247-251.
[3] 刁可山,周贤宾,李晓星,等. 矩形截面型材拉弯成形[J]. 北京航空航天大学学报,2005,31(2):134-137.
Diao Ke-shan, Zhou Xian-bin, Li Xiao-xing, et al. Stretch bending of aluminum extrusion[J]. Journal of Beijing University of Aeronautics and Astronautics,2005,31(2):134-137.
[4] 周贤宾,刁可山,李晓星,等. 闭截面型材的拉弯成形性[J]. 北京航空航天大学学报,2006,32(10):1168-1173.
Zhou Xian-bin, Diao Ke-shan, Li Xiao-xing, et al. Stretch bending formability of profile[J]. Journal of Beijing University of Aeronautics and Astronautics,2006,32(10):1168-1173.
[5] 金朝海, 周贤宾, 刁可山,等. 铝合金矩形管拉弯成形过程的数值模拟[J]. 材料科学与工艺,2004,12(6):572-575.
Jin Chao-hai, Zhou Xian-bin, Diao Ke-shan, et al. Numerical simulation of a stretch bending process for extruded aluminum rectangular tubes[J]. Materials Science and Technology,2004,12(6):572-575.
[6] 金朝海, 周贤宾, 刁可山,等. 铝合金型材拉弯成形回弹的有限元模拟[J]. 材料科学与工艺,2004,12(4):394-397.
Jin Chao-hai, Zhou Xian-bin, Diao Ke-shan, et al. Springback analysis for stretch bending of aluminum profile[J]. Materials Science and Technology,2004,12(4):394-397.
[7] 万敏,洪振军,李卫东,等. 大型异型材拉弯成形有限元模拟技术研究[J]. 锻压技术,2008,33(5):160-164.
Wan Min, Hong Zhen-jun, Li Wei-dong, et al. FEM simulation technology on stretch bending of long profile with complex section [J]. Forging and Stamping Technology,2008,33(5):160-164.
[8] 刘振宇,金朝海,李小强,等. 基于CATIA的型材拉弯夹钳加载轨迹设计系统[J]. 材料科学与工艺,2010,18(S1):158-161.
Liu Zhen-yu,Jin Chao-hai,Li Xiao-qiang, et al. Development of trajectory design of jaws in profile stretch-bending based on CATIA[J]. Materials Science and Technology,2010,18(S1):158-161.
[9] 张晓丽,李晓星,周贤宾,等. 复杂截面铝合金型材拉弯成形有限元模拟[J]. 塑性工程学报,2004,11(4):44-47.
Zhang Xiao-li, Li Xiao-xing, Zhou Xian-bin, et al. Finite element simulation for stretch-wrap bending of aluminium profile with complex cross section[J]. Journal of Plasticity Engineering,2004,11(4):44-47.
[10] 金朝海,周贤宾. 基于PS2F的铝型材拉弯回弹研究[J]. 塑性工程学报,2007,14(3):1-4.
Jin Chao-hai, Zhou Xian-bin. PS2F-based study on springback in stretch-wrap bending of aluminum profiles[J]. Journal of Plasticity Engineering,2007,14(3):1-4.
[11] 金朝海,周贤宾,谷诤巍,等. 基于位移控制的型材2D张臂式拉弯加载轨迹设计及数控代码生成[J]. 塑性工程学报,2009,16(2):66-71.
Jin Chao-hai, Zhou Xian-bin, Gu Zheng-wei, et al. Jaw trajectory design for displacement-controlled profile 2D stretch-wrap bending and part program generation[J]. Journal of Plasticity Engineering,2009,16(2):66-71.
[1] JIANG Qiu-yue,YANG Hai-feng,TAN Cai-wang. Strengthening properties of welded joints of 22MnB5 super high strength steel [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1806-1810.
[2] HU Zhi-qing, YAN Ting-xu, LI Hong-jie, LYU Zhen-hua, LIAO Wei, LIU Geng. Effect of cryogenic treatment on punch-shearing performance of aluminum alloy sheet [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1524-1530.
[3] QIU Xiao-ming, WANG Yin-xue, YAO Han-wei, FANG Xue-qing, XING Fei. Multi-objective optimization of resistance spot welding parameters for DP1180/DP590 using grey relational analysis based Taguchi [J]. 吉林大学学报(工学版), 2018, 48(4): 1147-1152.
[4] CHEN Jun-fu, GUAN Zhi-ping, YANG Chang-hai, NIU Xiao-ling, JIANG Zhen-tao, Song Yu-quan. Comparison of strain ranges and mechanical properties of metal rods under tension and torsion tests [J]. 吉林大学学报(工学版), 2018, 48(4): 1153-1160.
[5] LIANG Xiao-bo, CAI Zhong-yi, GAO Peng-fei. Numerical simulation and experiment of cylindrical forming of sandwich composite panel [J]. 吉林大学学报(工学版), 2018, 48(3): 828-834.
[6] LIU Zi-wu, LI Jian-feng. Erosion damage and evaluation of remanufacturing cladding layer for impeller metals FV520B [J]. 吉林大学学报(工学版), 2018, 48(3): 835-844.
[7] LIU Chun-guo, LIU Wei-dong, DENG Yu-shan. Effect of multi-point punch active loading path on the stretch-forming of sheet [J]. 吉林大学学报(工学版), 2018, 48(1): 221-228.
[8] LYU Meng-meng, GU Zheng-wei, XU Hong, LI Xin. Process optimization of hot stamping for anti-collision beam with ultra high strength [J]. 吉林大学学报(工学版), 2017, 47(6): 1834-1841.
[9] XING Hai-yan, GE Hua, LI Si-qi, YANG Wen-guang, SUN Xiao-jun. Hidden defect metal magnetic memory identification for welded joints based on fuzzy membership and maximum likelihood estimation [J]. 吉林大学学报(工学版), 2017, 47(6): 1854-1860.
[10] GU Xiao-yan, LIU Ya-jun, SUN Da-qian, XU Feng, MENG Ling-shan, GAO Shuai. Microstructures and mechanical properties of transient liquid phase diffusion bonded S355 steel/6005A aluminum alloy joint [J]. 吉林大学学报(工学版), 2017, 47(5): 1534-1541.
[11] GU Zheng-wei, ZHANG Wen-xue, LYU Meng-meng, WANG Wei, XU Hong, LI Xin. Stretch bending defect control of U-section stainless steel profile with wide flange [J]. 吉林大学学报(工学版), 2017, 47(4): 1165-1170.
[12] GU Zheng-wei, LYU Meng-meng, ZHANG Wen-xue, LEI Jiao-jiao, XU Hong. Stamping of front-end three-dimensional skin of China electric multiple units [J]. 吉林大学学报(工学版), 2017, 47(3): 869-875.
[13] YANG Xin-hui, XUE Wei, GUO Nan. Bending performance of glued-lumber beam reinforced with steel plate [J]. 吉林大学学报(工学版), 2017, 47(2): 468-477.
[14] LIANG Ji-cai, LI Yi, GAO Song, TENG Fei. Springback prediction for multi-point 3D stretch bending profile [J]. 吉林大学学报(工学版), 2017, 47(1): 185-190.
[15] XU Hong, LIU Ya-nan, YU Ting, GU Zheng-wei, LI Xiang-ji, ZHANG Zhi-qiang. Inelastic recovery behavior and microscopic mechanism of high strength DP780 steel during cyclic loading-unloading [J]. 吉林大学学报(工学版), 2017, 47(1): 191-198.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LIU Song-shan, WANG Qing-nian, WANG Wei-hua, LIN Xin. Influence of inertial mass on damping and amplitude-frequency characteristic of regenerative suspension[J]. 吉林大学学报(工学版), 2013, 43(03): 557 -563 .
[2] WANG Tong-jian, CHEN Jin-shi, ZHAO Feng, ZHAO Qing-bo, LIU Xin-hui, YUAN Hua-shan. Mechanical-hydraulic co-simulation and experiment of full hydraulic steering systems[J]. 吉林大学学报(工学版), 2013, 43(03): 607 -612 .
[3] ZHANG Chun-qin, JIANG Gui-yan, WU Zheng-yan. Factors influencing motor vehicle travel departure time choice behavior[J]. 吉林大学学报(工学版), 2013, 43(03): 626 -632 .
[4] XIAO Rui, DENG Zong-cai, LAN Ming-zhang, SHEN Chen-liang. Experiment research on proportions of reactive powder concrete without silica fume[J]. 吉林大学学报(工学版), 2013, 43(03): 671 -676 .
[5] CHEN Si-guo, JIANG Xu, WANG Jian, LIU Yan-heng, DENG Wei-wen, DENG Jun-yi. Mashup of vehicular ad-hoc network and universal mobile telecommunications system[J]. 吉林大学学报(工学版), 2013, 43(03): 706 -710 .
[6] MENG Chao, SUN Zhi-xin, LIU San-min. Multiple execution paths for virus based on cloud computing[J]. 吉林大学学报(工学版), 2013, 43(03): 718 -726 .
[7] XIAN Shu, ZHENG Jin, LU Xing, ZHANG Shi-peng. Identification approach of P2P flow based on the content redistribution model[J]. 吉林大学学报(工学版), 2013, 43(03): 727 -733 .
[8] LYU Yuan-zhi, WANG Shi-gang, YU Jue-qiong, WANG Xiao-yu, LI Xue-song. Display characteristics of one-dimensional integral imaging in virtual mode based on lenticular lens array[J]. 吉林大学学报(工学版), 2013, 43(03): 753 -757 .
[9] WANG Dan, LI Yang, NIAN Gui-jun, WANG Ke. An inhomogeneity mask for spatial watermarking[J]. 吉林大学学报(工学版), 2013, 43(03): 771 -775 .
[10] FENG Lin-han, QIAN Zhi-hong, SHANG Ke-cheng, ZHU Shuang. Improved hidden node collision avoidance strategy based on IEEE802.15.4[J]. 吉林大学学报(工学版), 2013, 43(03): 776 -780 .
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd