| Optimal Nesting for Continuous Shape Stamping Processes |
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| 作者姓名： | 李英华 周兆英 熊沈蜀 杨延楣 |
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| 作者单位： | LI Yinghua，ZHOU Zhaoying，XIONG Shenshu，YANG YanmeiDepartment of Precision Instruments and Mechanology，Tsinghua University，Beijing 100084，China; Beijing Machinery and Electricity Institute，Beijing 100027，China [ |
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| 摘 要： | IntroductionTwo-dimensionalshapesshouldbenestedonametalcoiltominimizethescrapormaximizethematerialutilizationratio.Incontinuousshapestampingprocesses,shapesarenestedseveralblanksperpunchandthepatternisrepeateddownthelengthofthecoil.Atypicalnestingproblemisthepackingforbicyclechainlinkblanksonasheetmetalcoil.Today,mostnestingarrangementsaredonemanually.Avarietyofmethods17]havebeenproposedtoautomatetheblanknestingprocess.ThispaperdescribesimprovementstothemethodproposedbyJainetal.1]andasoftw…
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Optimal Nesting for Continuous Shape Stamping Processes |
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| LI Yinghua,ZHOU Zhaoying,XIONG Shenshu,YANG Yanmei.Optimal Nesting for Continuous Shape Stamping Processes[J].Tsinghua Science and Technology,2000,5(4). |
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| Authors: | LI Yinghua ZHOU Zhaoying XIONG Shenshu YANG Yanmei |
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| Abstract: | This paper discusses the optimal nesting problem for minimizing the scrap in continuous shape stamping processes. The shape sliding technique is used to propose a new approach, OVERLAP-and-ESCAPE, to solve the problem of continuously nesting shapes onto a metal coil of fixed or selectable width. The approach is used to construct the objective function of the mathematical model of the problem using the Simulated Annealing Algorithm to determine the globally minimal configurations for the nesting problems. Some representative cases are studied and the results are encouraging. An automatic nesting software package for manufacturing bicycle chain link blanks is also described. |
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| Keywords: | nesting two-dimensional layout problems computer aided optimization Simulated Annealing Algorithm global minimum |
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