8Livatyali H, Mtiderrisoglu A, Ahmetoglu M A, et al. Improvement of hem quality by optimizing flanging and pre-hemming operations using computer aided die design[J].Journal of Materials Processing Technology,2000(98) :41 -52.
9Svensson M, Mattiasson K. Simulation of hemming with different element formulations and time integration methods [ C ]. Simulation of Materials Processing: Theory, Methods and Applications ,2001:933 - 938.
10Lin Guosong, Li Jing, et al. A Computational Response Surface Study of Three-Dimensional Aluminum Hemming Using Solid-to-Shell Mapping[ J ]. Journal of Manufacturing Science and Engineering, 2007 (129) :360 - 368.