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LI Yuqiang
CUI Zhenshan
ZHANG Dongjuan
RUAN Xueyu
CHEN Jun
National Die & Mold CAD Engineering Research Center,
Shanghai Jiaotong University,
Shanghai 200030, China |
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SIX SIGMA
OPTIMIZATION IN SHEET METAL FORMING BASED ON DUAL RESPONSE
SURFACE MODEL*
Abstract:
Iterations in optimization and numerical simulation for the sheet metal forming process may lead to extensive computation. In addition, uncertainties in materials or processing parameters may have great influence on the design quality. A six sigma optimization method is proposed, by combining the dual response surface method (DRSM) and six sigma philosophy, to save computation cost and improve reliability and robustness of parts. Using this method, statistical technology, including the design of experiment and analysis of variance, approximate model and six sigma philosophy are integrated together to achieve improved quality. Two sheet metal forming processes are provided as examples to illustrate the proposed method.
Key words:
Six sigma optimization Sheet metal forming Dual response surface |