| Summary: | 碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 90 === The object of this thesis is optimal design l for CAD model reconstruction and
machining of reverse engineering by Taguchi method . Choosing design parameters
for both CAD model and machining , the experimental design of Taguchi method is
conducted to optimal parameter design . Also , the orthogonal array , the analysis of
variance（ANOVA）, and the response table are utilized to choose optimal levels of
design parameters for both CAD model and machining . The percent contribution of
each parameter is evaluated to compare the importance of design parameters for both
CAD model and machining . Furthermore , the regression analysis is applied to corre-
late design parameters into a mathematical equation .
The application of Taguchi method and the regression analysis can help the de-
signers to minimize the shape error in CAD model reconstruction and machining of
reverse engineering using laser scanning , also to obtain the more accurate geometry
shape by adjust proper parameter levels . Besides , the equation by the regression
analysis can be used to estimate the shape error to shorten the design cycles and im-
prove the quality of products .
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