A geometry search approach in case-based tool reuse for mould manufacturing
A geometry search approach in case-based tool reuse for mould manufacturing
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DOI：
10.1007/s00170-015-6820-0
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发表时间：
2015-02
期刊：
影响因子：
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通讯作者：
Zhi Li;Xionghui Zhou;W. Liu;Chuipin Kong
中科院分区：
文献类型：
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作者：
Zhi Li;Xionghui Zhou;W. Liu;Chuipin Kong
相似自由曲面在产品族或不同代中被广泛采用。高效地制造这些表面对于公司的竞争力至关重要。传统上，铣削工具主要是根据经验选择的，因此，重用现有的经验是必不可少的先进制造。本文提出了一种新的几何搜索方法来推荐工具选择的审查和重用的基础上，以前的情况。首先，从自由形式的网格中提取层次表示。然后，定性和定量属性的定义，以支持匹配和比较的详细程度。几何搜索算法与边界条件相适应，以找到最佳的工具序列，其中现有的情况下，存储在分层切片沿着其工具信息，并在一个序列中探索新的腔的情况下，逐步找到每一层的最佳匹配。最后，检索工具进行了调整，以审查和协助过程规划。一个原型系统和一个案例研究，以证明所提出的方法。
Similar freeform surfaces are widely adopted in product family or different generations. Manufacturing of these surfaces with efficiency is essential to competitiveness of the company. Conventionally, milling tools were chosen mainly by experience; therefore, reuse of existing experience is essential to advanced manufacturing. This paper proposed a novel geometry search approach to recommend tool selection for review and reuse based on previous cases. First, a hierarchical representation is extracted from freeform meshes. Then, qualitative and quantitative properties were defined to support matching and comparison in the level of detail. Geometry search algorithm is then adapted with boundary condition to find best sequence of tools, where existing cases were stored in layered slices along with their tool information, and new case of cavity is explored in a sequence to progressively find the best match of each layer. Finally, retrieved tools were adapted to review and assist for process planners. A prototype system and a case study are provided to demonstrate the proposed method.