Product Decomposition

During the product development stage, designers often face the task of partitioning a product into functioning parts. Unfortunately, most decomposition decisions are made based upon product functionality and product manufacturability, which is usually ignored. As a result, the decomposed parts can be too expensive to manufacture and are sometimes impossible to make.

In this project we present a systematic approach to help designers decompose sheet-metal products. This approach takes into account the manufacturability of cutting, bending and assembly processes, while trying to minimize the number of parts. To make this decomposition more tractable, a develop-first-decompose-later strategy is used. Inside the decomposition algorithm, there are three evaluation modules: part unfoldability, tool accessibility and product disassemblability. The system iteratively goes back and forth between the design and decomposition modules to achieve near-optimal results (minimum number of parts and minimum number of bends). The decomposition results are sent to these process planners and a complete production plan is produced.

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Copyright © 1997 Cheng-Hua Wang. All rights reserved.
Last updated 4 March 1997.