Optimal process design in selective assembly when components with smaller variance are manufactured at three shifted means
Optimal process design in selective assembly when components with smaller variance are manufactured at three shifted means
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DOI：
10.1080/00207541003604851
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发表时间：
2011-02
影响因子：
9.2
通讯作者：
S. Matsuura;Nobuo Shinozaki
中科院分区：
文献类型：
--
作者：
S. Matsuura;Nobuo Shinozaki
当产品的质量特性是配合件之间的间隙时，选择性装配是提高产品质量的有效途径。在这种方法中，部件根据其尺寸被分成几组，并且通过从相应的组中随机选择匹配部件来组装产品。许多以前的研究集中在等宽划分方案，其中两个组件的尺寸分布进行分区，使所有组具有相等的宽度。当两个分量维度的方差之间存在较大差异时，由于相应组中的分量数量之间的差异，等宽划分将导致大量剩余分量。为了科普这一困难，一些作者提出了一种在三个移动装置上制造具有较小方差的组件的方法。在本文中，一个最优的制造平均设计，最小化的剩余部件的数量。结果表明，使用的最优设计大大减少了剩余部件的数量相比，使用另一个先前提出的制造均值设计和无移位设计。
Selective assembly is an effective approach for improving the quality of a product that is composed of two mating components, when the quality characteristic of the product is the clearance between the mating components. In this approach, the components are sorted into several groups according to their dimensions, and the product is assembled by randomly selecting mating components from corresponding groups. A number of previous studies focused on equal width partitioning schemes, in which the dimensional distributions of the two components are partitioned so that all groups have equal widths. When there is a large difference between the variances of the two component dimensions, equal width partitioning will result in a large number of surplus components due to differences between the numbers of components in corresponding groups. Some authors have proposed a method of manufacturing the component with smaller variance at three shifted means to cope with this difficulty. In the present paper, an optimal manufacturing mean design that minimises the number of surplus components is derived. It is shown that the use of the optimal design considerably reduces the number of surplus components compared with using another previously proposed manufacturing mean design and the no-shift design.