Process Expert System in NC Camshaft Grinding on the Basis of Rough Set and Case-based Reasoning
Hui Cao · 2010
For the difficult issues of process selection about NC camshaft grinding,on the basis of synthesizing the advantages of rough set (RS) theory and case-based reasoning (CBR),a new RS-CBR process expert system is put forward. In the system,the discrete algorithm and its reduction of RS is used to carry out automatic calculation of process feature attribute weights; the CBR is used to calculate the similarity of process cases. A series of experiments are accomplished by using uniform design principle on CNC8312A NC camshaft grinder,and several groups of data are obtained to establish process case database. On this basis,the RS-CBR model of NC camshaft grinding is established to match grinding process intelligently. A satisfied result is obtained by applying the matched process case to actual production.