花岗石高效锯切的试验研究与分析

The experiment research and analysis of the granite under efficient sawing

随着市场对花岗石质量的要求不断提高,企业必须在提高加工质量的同时降低加工成本,即锯切成本,以此来提高花岗石的市场竞争力。通过对花岗石锯切技术的分析,提出了一种高效锯切技术,并在数控加工中心上采用金刚石圆锯片对花岗石进行锯切试验研究。首先对切削速度、进给速度与切削深度这3个因素进行三因素三水平正交试验,然后利用回归分析法建立切削力数学模型,以此对切削力进行预测,提出用切削力与材料去除率的比值来评价最优工艺参数组合,最后通过切削力趋势图,综合考虑切削力和材料去除效率对锯切工艺参数进行优化,得到花岗石高效锯切的最优加工参数。研究结果表明,该优化和评价方法及优化后的参数对实地高效锯切生产中的工艺参数优化组合具有重要指导意义。

With the quality requirement＇ s increasing of the granite, must improve the machining quality, reduce the processing cost, namely, cutting cost,in order to improve the market competitiveness of granite. Through the analysis of granite sawing technology, it puts forward a kind of high efficient cutting technology and the researchers do the granite cutting experiments with the diamond circular saw blade cutting tool on the NC machining center. First of all, design the three factors three levels orthogonal experiment which is based on the cutting speed, feed rate and cutting depth these three factors and then use the regression analysis method to establish mathematical model of cutting force in order to predict the cutting force, at last, get granite efficient sawing optimal process parameters by considering cutting force and the material removal efficiency to optimize the cutting parameters. The research results show that the method of the parameter optimization and the optimal parameters for the granite＇ s efficient sawing field production have important guiding significance.