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 Wysłany: Wto 17:31, 11 Sty 2011 Temat postu: moncler günstig Stamping robust design method and |
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Stamping robust design method and its application
Measuring Instrument bFig. 5Stampingexperimentalsampleaandthicknessmeasuringequipmentb carved through the initial blank line. Select the initial blank center thickness measurement points. Thickness using a portable measuring instrument. Measurement and Simulation of Stamping Process rough rectangular test the same part of the bottom thickness of the rough shape and thickness compared with the regression formula shown in Table j. S return wrapped data and test data comparing the results of Tab. 5Comparisonbetweenthedatafromexperimentsandthedatafromregressionequation test data relative error of scattered,moncler günstig, according to a return of R: 【. 920.97009740.41% f = o. 10 a R a 1l920.9650.9640.1O%, a O. Mechanical Engineering 1460 11 Table 5 Regression Analysis of data and test data shows the relative error of regression formula is a better precision in the application of composite body panels, the design is feasible. 6 summarizes the research basis of the above, through the stamping simulation,ugg italia, using the composite design methods can be convenient punching quality evaluation and its influencing factors of the approximate function. The actual experiment shows that the regression formula stamping accuracy and feasibility of the method. In addition, by analyzing the regression formula, robust design can punch. This method can be applied to complex stampings. Stamping process is complex, stamping quality evaluation and the relationship between factors is often nonlinear. Therefore, for different parts, in different conditions, find the right expression for the explicit function will be the focus of future research. Thanks in part, by experiments with the assistance of Baosteel Technology Center, the user,air jordans, to express my gratitude. References [1] Greatly fresh, MENG, Ji Zhen-Yu. Overview of robust design of mechanical and research [J]. Engineering Design, 1999, (】): 1 ~ 4 [2] Chen weeks. Robust Design Engineering Development and Trend of [J]. China Mechanical Engineering, 1998, (6): 59 ~ 62 [3] Zhang Lei, Lu Yuming, stone all. High-speed, gear reducer contained in the robust design [J]. Machine Design, 1998,ugg stivali, (10): 10 ~ 12 [4] Chen weeks. Robust design [M]. Beijing: Mechanical Industry Press,Moncler online, 1999.12 [5] Lei, PETROCHEMICAL Sun cool. Experimental design based on [M]. Chongqing: Chongqing University Press, 1997.2RobustdesignofstampingprocessanditsapplicationIINZhong-qinAIJJanZHANGWei-gangLIShu-hui (Auto-bodymanufacturingtechonologycenter, ShanghaiJiaoTongUniversity, Shanghai200030) Abstract: Arobustdesignmethodofstampingprocesseshaeenproposedinthepaper. Theregressionequationofthequalityindexanditsinfluencingfactorscanbeobtainedbymeansofthemethodofcompositedesign. Computersimulationofstampingprocesshastakenplacepracticalstampingexperimentstofulfillthespecialexperimentalconditions. Thecorrectnessoftheregres-sionequationandthefeasibilityofstampingrobustdesignmethodhavebeenprovedthroughstampingexperiments. Keywords: robustdesign; compositedesign; finiteelementmethod; computersimulation
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