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Alternative model based on approximate multi-bit high-speed forging die forging pre-Optimal

gnL1/LfVb1l/Vol2/Vol3/Vo14/xfkNkNnmrn1nrrnm. rnlTl ~ initial design 194159798129317726074282l Optimization 155232137446432426224354O5 Conclusion In this paper, high-speed multi-station forging die forging pre-optimization, proposed alternative model based on approximate optimization method. To mold the shape of pre-blacksmith bit geometric parameters as design variables, LHs method to obtain the initial sample obtained by numerical simulation software DEFORM forming force and forming quality of responses,[link widoczny dla zalogowanych], application of Kriging model and BP neural network model similar to alternative models were constructed used to approximate the design variables and optimization goals fit, the relationship between constraints. Will build alternative model was applied to optimize the approximate calculation, the combined penalty function based on genetic algorithm, complex nonlinear multi-objective constrained optimization problem,[link widoczny dla zalogowanych], the variable transformed into upper and lower bound contains only 84 of Plasticity Engineering Volume 16 (on the next Section 5O pages) [36] Writing Group Air duct processing. Air duct processing [M]. Beijing: National Defence Industry Press ,1979:151-155 [37] \Aeronautical Manufacturing Engineering Handbook (aircraft sheet metal) [M]. Beijing: Aviation Industry Press ,1992:548-55l [38] Lu listen Yu, Xu Yi,[link widoczny dla zalogowanych], Shi-Hong Zhang and so on. Titanium connecting tube diameter roll forming numerical simulation [J]. Forging Equipment & Manufacturing Technology,[link widoczny dla zalogowanych], 2004. (3): 8284 [39] Li Guangjun, Zhanmei. LF2M-JG6 × l no expansion extrusion forming process of the first end of the catheter LI EJ]. Plastic Engineering, 2008.15 (2) :54-56E4o] Chengchun Juan. No pre-flare tube forming [J]. Hongdu Science and Technology, 2005. (3) :47-54 [41] Zeng loose. Advanced titanium alloy connecting tube forming technology EJ]. Aeronautical Manufacturing Technology, 2003. (12) :27-31 [42] Zeng Song, Li Zhiqiang. Connecting tube forming technology advanced Study [J]. Metal Forming Technology, 2003.21 (3) :4-7 [43] i, MCGupta. CrackgrowthlifeofTi a 3A1-2.5Vtubesunderinternalimpulsepressure [J]. MaterialsScienceandEngineering, 2006. A431 :146-151 [44] [45] E46] [47] E48] [49] E5o] [51] MEEbDahshan, LiufuWang, AMShamsE1Din, eta1. Anewfotinoftitaniumcondensertubedropletero-sion [J]. Desalination ,2001.133:149-153IsmaeelNAndijani, ShahreerAhmad, AneesUMalik. Corrosionbehavioroftitaniummetalinthepresenceofinhibitedsulfuricacidat50 ℃ rJ]. Desalination ,2000.129:45-51 money to nine red. New titanium alloys for aerospace research and development and application [J]. Rare, 2005.24 (3) :218-223 sand love science, such as Wang, Xing-None. High-strength titanium alloys for aircraft structural study and application of EJ]. Rare, 2004.28 (1) :239-242 single-Debin, Tong Wen Zhou, Hui Yi and so on. Ti21523 plastic deformation inhomogeneity on the impact of cold-power spinning [J]. China Nonferrous Metals, 2000.10 (6) :887-890 Hung rights,[link widoczny dla zalogowanych], Luo Guozhen, Wu Qin. Tbl5-3 alloy pipes trial and Properties rJ]. Materials Engineering, 1995. ( Cool

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