科研之友
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摘要
To produce an assembled product, the components need to be manufactured within the allocated tolerances such that the assembly operations can be performed to produce the final product. In a collaborative manufacturing environment, the components of a product may be manufactured at different plants distributed at various locations. There are different manufacturing operations with various process capabilities at the multiple plants. If the components are distributed to the manufacturing operations at the different plants, the working tolerances of the components may be allocated differently. In this research, a multi-plant tolerance allocation model is presented. At the first stage, given the blueprint dimensions and tolerances of a designed product, a cross-plant tolerance allocation is performed to determine the working tolerance of each of the components by considering all the feasible manufacturing operations of the available plants. The primary objective at the first stage is to maximize the cumulative sum of working tolerances. At the second stage, the components are assigned to the suitable plants to perform the required manufacturing operations. A mathematical programming model is presented to distribute the components to the suitable plants to achieve the objective of minimizing multi-plant manufacturing costs. As a result, the working tolerances can be allocated for the components with suitable manufacturing operations to achieve the tolerance objective. In addition, the manufacturing operations for the components can be performed at the suitable plants with optimized multi-plant manufacturing cost objectives. An example product is demonstrated and discussed.
- 出版日期2009
