Flexible Process Planning Method for Milling
Eiji Morinaga*, Masayuki Yamada**, Hidefumi Wakamatsu*,
and Eiji Arai*
*Division of Materials & Manufacturing Science, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
**Mitsubishi Electric Corporation
This paper concerns the development of flexible Computer-Aided Process Planning (CAPP). In the agile manufacturing which has been strongly promoted, manufacturing situation changes dynamically. Therefore, the CAPP method which can be adaptable to these dynamic changes is required. From this point of view, there has been the method which is mainly composed of the following three steps – (i) decomposing the Total Removal Volume (TRV), (ii) recomposing parts obtained by decomposition, and (iii) extracting an optimal set of parts. Steps (i) and (ii) require a high computational load. We propose solving this problem by focusing on concave parts of the TRV in decomposition. The proposed method is also enhanced toward the multiaxis milling processes. A case study demonstrates the feasibility and effectiveness of our proposal.
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