1Yuan S J, Teng B G, Wang Z R. Precision forming of flange for a large spedal vessel[J]. Journal of Materi- als Processing Technology, 2005. 167(2) : 224-9.
2Teng B G, Wang Z lq'., Dong G Q, et al. Research on the precision bending of a workpiece with a complicat- ed cross-section for manufacturing a large flange[J]. Journal of Materials Processing Technology, 2004. 151 (1) :228-31.
3Hua M, Baines K, Cole I M. Continuous four-rollplate bending: a production process for the manufac- ture of single seamed tubes of large and medium diame- ters[J]. International Journal of Machine Tools and Manufacture, 1999. 39(6) : 905-935.
4Hua M, Lin Y H. Effect of strain hardening on the continuous four-roll plate edge bending process[J]. Journal of Materials Processing Technology, 1999:89- 90 : 12-18.
