Springback compensation for a vehicle’s steel body panel

Author(s):  
Paweł Bałon ◽  
Andrzej Świątoniowski ◽  
Janusz Szostak ◽  
Bartłomiej Kiełbasa
2017 ◽  
Vol 31 (2) ◽  
pp. 152-163
Author(s):  
Lars Troive ◽  
Paweł Bałon ◽  
Andrzej Świątoniowski ◽  
Thomas Mueller ◽  
Bartłomiej Kiełbasa

2013 ◽  
Vol 791-793 ◽  
pp. 390-393
Author(s):  
Lei Hu ◽  
Hui Xie ◽  
Xing Xing Hu ◽  
Zhi Hong Pan ◽  
Hao Ming Jiang ◽  
...  

The performance of the aluminum alloy makes it the most popular lightweight materials for the automobile manufacturers. However, due to the disparity on the crystal structure,it has the higher springback values compared with steel. In order to solve the problem, we put forward a new springback compensation method based on displacement compensation principle and the principle of curved surface fairing design methods. Though full cycle simulation and calculate springback value for each working procedure, then generate the springback compensation surface. The methods practical application effect is good.


2014 ◽  
Vol 6 ◽  
pp. 131253 ◽  
Author(s):  
Young-Ho Seo ◽  
Ji-Woo Park ◽  
Woo-Jin Song ◽  
Beom-Soo Kang ◽  
Jeong Kim

Springback in metal forming process often results in undesirable shape changes in formed parts and leads to deterioration in product quality. Even though springback can be predicted and compensated for through the theories or methodologies established thus far, an increase in manufacturing cost accompanied by a change in die shape is inevitable. In the present paper, it is suggested that the cost accompanied with springback compensation can be minimized while allowing the processing of various three-dimensional curved surfaces by using a flexible die composed of multiple punches. With the die being very flexible, the iterative trial-and-error method can be readily applied to compensate for the springback. Thus, repeated designing and redesigning of solid or matched dies can be avoided, effectively saving considerable time. Only some adjustments of punch height are required. Detailed designs of the flexible die as well as two core algorithms to control the respective punch heights are described in this paper. In addition, a closed-loop system for the springback compensation using the flexible die is proposed. The amount of springback was simulated by a finite element analysis and the modified displacement adjustment (DA) method as the springback compensation model was used in the closed-loop system. This system was applied to a two-dimensional quadratic shape problem, and its robustness was verified by an experiment.


2021 ◽  
Author(s):  
Zhihui Gong ◽  
Mandeep Singh ◽  
Bohao Fang ◽  
Dongbin Wei

Abstract Springback compensation is critical in sheet metal forming. Advanced techniques have been adopted in the design stage of various sheet metal forming processes, e.g. stamping, some of which are for complex shaped products. However, the currently available numerical approaches are not always sufficiently accurate and reliable. To improve the accuracy of springback compensation, an enhanced hybrid springback compensation method named Springback Path – Displacement Adjustment (SP-DA) method has been developed in this study based on the well-known conventional displacement adjustment (DA) method. Its effectiveness is demonstrated using FEM analysis of low, medium and high strength steels adopted in automobile industry, in which a symmetrical model owning geometry complexity similar to an auto body panel was established. The results show this new enhanced SP-DA method is able to significantly improve the accuracy of springback compensation comparing to conventional displacement adjustment technique.


1986 ◽  
Author(s):  
Masaaki Yamashita ◽  
Takahiro Kubota ◽  
Takeshi Adaniya

Materials ◽  
2017 ◽  
Vol 10 (10) ◽  
pp. 1128 ◽  
Author(s):  
Jianmei Wang ◽  
Quanzhi Xia ◽  
Yang Ma ◽  
Fanning Meng ◽  
Yinan Liang ◽  
...  

1999 ◽  
Author(s):  
Thomas E. Welch ◽  
James R. Schwaegler
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document