Papers by Keyword: Irregular Surface

Abstract: Based on orthogonal experiment of machining the irregular surface of Wulian red granite (G3768) with diamond profiling wheel, the relations between the fractal dimensions of cutting forces with machining parameters are studied. Cutting speed, feed speed and cutting depth are considered as the process parameters. The cutting force in machining granite operation are measured and the fractal dimension are calculated using using the algorithm of correlation dimension. From main effect plots the fractal dimensions of three directions of cutting forces are reduced with the increase of cutting speed and increased with the increase of feed speed and cutting depth. The mathematic models of fractal dimension of cutting force are developed by analysis of regression. The results of the ANOVA show that cutting speed and feed speed have remarkable influence to fractal dimension D_x, D_y and D_z.

Abstract: Based on orthogonal experiment design the study about the irregular surface of Qilu Red granite was performed, the tend charts of technologic parameters were established. The relations of factor primary and secondary between cutting speed, feed rate and depth of cut on two performance measures, machining efficiency and wear of cutter were investigated by range analysis, and the optimal cutting parameters for each performance measure were obtained too. Mathematic models of machining efficiency and wear of cutter were deduced by analysis of regression about experimental results. The theoretic foundation was offered to reasonably select technologic parameters of grinding for irregular surface of granite.