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工程设计学报
Chinese Journal of Engineering Design  2016, Vol. 23 Issue (6): 553-557    DOI: 10.3785/j.issn.1006-754X.2016.06.005
    
Research on springback compensation of creep age forming based on displacement adjustment method
ZHUO De-zhi, XIE Yan-min, XIONG Wen-cheng, TANG Wei, HUANG Ren-yong
Institute of Advanced Design and Manufacturing, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
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Abstract  

To solve the large springback problems of sheet after the creep age forming, based on the displacement adjustment (DA) method, the die surface adjustment methods which considered horizontal direction displacement in different compensation directions were proposed. The finite element model of sheet forming was established by using the software ABAQUS, and the forming processes were simulated. The processes of springback compensation were carried out separately by using the original displacement adjustment method and the improved ones. The results showed that the forming parts could meet the precision requirement with 5 times of iteration by using the original method, while only 3 times were needed by using the improved methods and forming parts reached a higher precision. The advantages of improved methods which are fast convergence rate and high precision are confirmed.

Key words： creep age forming      springback      die surface adjustment      compensation direction     
Received: 24 February 2016      Published: 28 December 2016
CLC:  TG146.21  
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ZHUO De-zhi
XIE Yan-min
XIONG Wen-cheng
TANG Wei
HUANG Ren-yong
Cite this article:

ZHUO De-zhi, XIE Yan-min, XIONG Wen-cheng, TANG Wei, HUANG Ren-yong. Research on springback compensation of creep age forming based on displacement adjustment method. Chinese Journal of Engineering Design, 2016, 23(6): 553-557.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2016.06.005     OR     https://www.zjujournals.com/gcsjxb/Y2016/V23/I6/553


基于偏差调节法的蠕变时效成形回弹补偿研究

为解决蠕变时效成形后板料回弹较大的问题，基于偏差调节法，在不同补偿方向建立了考虑水平方向偏差的模具型面修正方案.利用ABAQUS软件建立了板料成形的有限元模型并对成形过程进行了模拟，并分别用偏差调节法和改进后的方法通过反复迭代对构件进行回弹补偿.结果表明，使用偏差调节法至少需要5次迭代才能使构件满足成形精度要求，而考虑水平偏差的方法仅需要3次，而且获得的构件的精度更高.研究表明考虑水平偏差的方法具有收敛速度快、成形精度高的特点.


关键词： 时效成形,  回弹,  模面修正,  补偿方向 

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