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Process planning is the main basis for design of tooling design and processing routes , its organization of production , to ensure product quality , improve labor productivity , reduce costs , shorten the production cycle and to improve working conditions and so has a direct impact , and therefore is a key production job. Shaft parts , parts of the shaft parts feature information polychromatic sets theory to establish the model of process planning , information with process knowledge of the characteristics of the parts close together joint , associated with each other ; then , the multicolor collection coloring logical operators , and genetic algorithms and fuzzy decision inference reasonable decision . In this paper, following research : ( 1) according to the characteristics of the shaft parts , optimized processing program selection, the overall optimization of the tool and the sort of step decision-making process to establish the relationship between model ; (2) the optimal choice of the processing program ; ( 3) the overall optimization of the tool ; (4) based on genetic algorithms work step-by-step sort . Technology through these four aspects , the generated after processing program , tool optimization , and work step-by-step sort of three modules , process decision reasoning process of shaft parts .
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