Process Scheme Based NC Machining Chain Model for Aircraft Structural Parts

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Abstract:

Although intelligent NC programming technology has made some progress, the efficiency and practicability were not high. For this reason, we presented the intelligent NC programming pattern based on process scheme (PS). In this pattern, some models and the rules were mainly proposed. Firstly, by analyzing the machining characteristic of aircraft structural parts, we established the tree model of PS and the constructing rules. Secondly, we constructed the extended generalized pocket model by slicing recognition to create the machining volume model (MVM). Thirdly, the machining chain model was put forward based on the PS and MVM. Finally, the developed pattern and model have been applied in the intelligent NC programming system of aircraft structural parts and are validated with high practicability and efficiency through a case study.

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994-998

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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