Study On Shaped Machining Of The Special-shaped Surface Of Granite And Mechanism Of Material Rupture

It's an economical and efficiency technical way with to machine special-shaped product of granite with diamond shaped tools, which is widely used by stone enterprises. However, due to complex curves molding tool, the process of cutting the point of cutting parameters is inconsistent, the cutting force of the diamond grain is inhomogeneous. So we can't to go quantitative theoretical research, resulting to the theoretical research in this field is seriously lagged behind, the problem in production process isn't be timely resolved.We take advanced machining center equipment, use a diamond shaped milling cutter, to machine 1/4 circular surface of straight-line forming of special-shaped granite named Shidao Red as the research object. In the process of product processing Classification and analysis of a detailed introduction of fracture mechanics of ideas, granite forming the cutting process and the formation of cracks in the expansion of the analysis of the cutting parameters and granite forming the relationship between the cutting force conducted an in-depth analysis.We use the experimental analysis and mathematical modeling theory to research. First of all, we clearly put forward the special-shaped granite products in the processing of different types of efficient processing definition. Special-shaped granite of the process carried out a detailed analysis of different stages of processing for forming the processing methods, equipment and processing technology, in accordance with cutting depth and the complexity of the shape of processing the different products forming different types of granite processing for analysis. Secondly, we analysis the inadequacy of the traditional parameters of granite processing and propose the processing efficient level of parameters value.By setting granite forming process parameters under cutting experiments, we measured processing under different parameters of the cutting force information, so we analysis the change of stone removal and the cutting force with the cutting tool parameters speed n, feed rate V_f, depth of cut a_p.We take diamond shaped milling cutter as a series of very thin films of diamond saw blades. We first established a special-shaped diamond shaped milling in the processing of products forming the cutting lines mathematical model shows that the molding Cutting bus mathematical function; Forming the establishment of a diamond cutting tool material removal granite theoretical formula and simplified formula, the formula is specified through the granite material removal rate and cutting parameters of the mathematical relationship between the light of the geometric characteristics of cutting-established Cutting contact with the mathematical analysis of the calculation model. For a detailed study of diamond particles forming in various parts of cutting non-uniform particle analysis and fracture mechanism shedding provide a theoretical basis.The study of this subject provide a rationalization of reference for different types of granite forming processing products, and provide a theoretical basis for prototyping tool in the processing of granite forming the diamond particles shed, damaged quantitative study. The research results not only have practical significance as a guide to the manufacture of different types of granite, At the same time, the investigative thinking and ways in this paper would produce far-reaching influence to theory of machining special-shaped stone.