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 Wysłany: Pon 18:02, 10 Sty 2011 Temat postu: ugg stivali The experimental low-alloy steel defor |
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Deformation resistance of low alloy steel and System Study
3.31.36F3871.413.38.62.15F4852.08.65.93.2OF5847.15.94.64.28F6833.54.63.85.28F7817.23.83.36.11 strip rolling The strain and strain rate is not constant, used in the calculation of the average equivalent strain and the average equivalent strain rate. According to the Mises criterion in plane strain assumption, the average equivalent strain and equivalent strain rate and the average relative reduction in the relationship can be expressed as a ln (1 (12) a go × stupid × N √ × 1 · n (1) P a; (14) / lo where the average effective strain one by one - the average equivalent strain rate - relative reduction in N - Roll speed R - roll radius h. - rolling Population thickness h - Exports by the thickness of workpiece deformation resistance on the type and combination of mathematical models, the average deformation resistance can be obtained using the Sims formula to calculate the rolling force of ridicule, Figure 9 shows the predictive value of rolling force and the actual value of the contrast. Figure 9 ∞ {tan gills% 8 cries of mistaken premises No. 5 well 1OOOOOOOO Mabo et al: Experimental deformation resistance of low alloy steel and its System 105 can be seen, predicted in good agreement with the actual values show that the deformation resistance model can be applied to the rolling process. Although, Lei Figure 12 shows the results after the interface Fig.12Post-processinginterface Figure 9 the predicted rolling force compared with the actual value of the Fig.9Comparis. nofsimu1ati. npredieted4 Conclusion andmeasuredrollingforce deformation resistance System As more experimental data obtained, and analyzed the process more complicated, takes a long time, through the development of appropriate software can solve this problem,[link widoczny dla zalogowanych], so this paper Vi-sualC + + and OpenGL programming language for the development platform, the preparation of the deformation resistance of the system software. software is divided into pre-and post-processing results show that the input of two parts, you can select the appropriate option and make the appropriate calculations and results. In addition, the software also has print, save, view and save data files and other functions, easy operation and data analysis for the follow-up provides a powerful help to improve the efficiency of data analysis. the software part of the interface shown in Figure 1O ~ Figure 12. deformation resistance model of rolling, Yanshan University System Software complete sets of equipment and Engineering Research Center, Ministry of Education of Metastable Materials Science and Technology, National Laboratory mat point of the main interface of Figure 1O ll pre-entry interface Fig.11Pre-inputinter ~ ace1) to thermal simulation data, respectively, on the deformation temperature, deformation and deformation rate on the analysis of the effects of deformation resistance, summed up the changes in law. 2) using multiple linear regression methods were established dynamic recovery and dynamic recrystallization deformation resistance data model, compared with the measured results show that predicted and actual values of good degree of fit, relative error 7 or less. 3) mathematical model of deformation resistance is predicted on the rolling force, and the actual value of the contrast in good agreement, show that the model can be used for the rolling process. 4) to VisualC + + and OpenGL programming language for the development platform, the preparation of the deformation resistance of the system software to improve the efficiency of data analysis. Reference has Wenfeng, CHEN Yi Wang. TRIP800 Experimental study of deformation resistance of steel [J]. Wuhan University,[link widoczny dla zalogowanych], 2007.3O (1) :14-16 weekly China, possession of grams of wisdom. Metal plastic deformation resistance [M]. Beijing: Mechanical Industry Press, 1989 Chen Sen Chan,[link widoczny dla zalogowanych], Ye Qingrong. Plastic Working principle of EM]. Beijing: Tsinghua University Press, 1991, Zhao industry. Plastic deformation of metals and the rolling theory [M]. Beijing: Metallurgical Industry Press,[link widoczny dla zalogowanych], 1986 Tong Tong. VisualC + + object-oriented and visual programming [M]. Beijing: Tsinghua University Press, 2000DaveShreiner with, Deng Zheng Xiangshen translation. OpenGL Programming Guide [M]. Beijing: People's Posts and Telecommunications Press,[link widoczny dla zalogowanych], 2005DMDouglas the SEQUENCE RANDOM such as translation. Nonlinear Regression Analysis and Its Applications [M]. Beijing: China Statistics Press, 1997 Caohong De. Mechanics and rolling plastic deformation theory [M]. Beijing: Mechanical Industry Press ,1982:228-229 ]]]]]]]] 12345678 [[[[[[[[
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