Abstract
The extraction of assembly information from product data has been researched for the past three decades, mainly due to the advancements in computer performance and CAD-related software. However, the manipulation and processing of CAD data for the automatic generation of assembly information have only been recently researched. This paper presents a methodology for extracting assembly information from product data. The methodology is based on a novel idea of assembly tiers for the separation of parts to be assembled into groups based on their geometric characteristics. The methodology is applied as a software extension to a commercial CAD software and is demonstrated through a number of industrial case studies.
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