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Information × Registration Number 0214U003089, 0111U000246 , R & D reports Title Creating a 3D modeling and management methodology of high-speed deep grinding with the crossing axes of the detail and of the circle of superhard materials popup.stage_title Head Kalchenko Volodymyr Vitaliyovic, Доктор технічних наук Registration Date 17-01-2014 Organization Chernigiv National Technological University popup.description2 Scientific novelty of the topic is to develop a theoretical justification of high efficiency deep grinding of cylindrical , stepped, tapered, curved surfaces and end parts made of structural and tool materials , titanium , aluminum alloys and hard with crossed axes details and diamond or cbn wheel with predictive modeling finite element method. First developed the theoretical basis for the methodology of predictive 3D modeling of high-speed deep longitudinal grinding parts made of structural and tool materials , titanium , aluminum alloys and hard cross- axis parts and diamond or cbn wheel , within a single system " processed material - grain grinding wheel - bunch circle " , the finite element method . First , for solving direct and inverse problems of the theory of formation , based on the authors' hierarchy of 3D geometric models , a general modular 3D model that describes the generalized form of the treated surface , and on its base circle profile obtained , which provides all the possible formation of surfaces of revolution . And with a model that describes the stock removal is defined and continuous line contact patch , which is located on the periphery of the circle and end . First developed a general predictive thermomechanical model workflow with crossed axes grinding tool and the workpiece , which is able to predict the type, shape and size of chips based on the radial oscillations of the grinding wheel , determines the stress-strain and thermal state in the bulk and on the contact surfaces of the cutting edges of the grains ; considers the probability distribution of the cutting edges of the local areas of the contact , determines the value of a layer of material which is cut a cutting edge , allows for cutting and deforming edge at the elementary portion of the contact tool and the workpiece , and the value of their recesses in the surface of the part , defines the general and local cutting force . On the basis of thermomechanical model established methodology workflow management grinding in which the allowance is removed roughing wheel face , improved productivity by 5-6 times by optimizing the angle of crossing axes tool and workpiece , provides a uniform load on the end and finishing - unloaded portion periphery circle, which is at the intersection of it and parts increases the precision by a parallel arrangement of the part axis cutting force and the fixed position of the formative portion of the perimeter of a circle. In the grinding surfaces of revolution parts of nanocrystalline titanium methodology developed workflow management , which ensures the preservation of the original grain structure of the metal. The developed model determined the effect of thermomechanical properties of ligaments, grain size , concentration and grinding regimes on quality and productivity. To determine the grain size range of the simulated 3D model is developed , which determines the lower bound for the probability of cutting the diamond or boron nitride grains at the depth of penetration of the metal in terms of surface depending on the radius of curvature of the cutting edge and grinding speed . Based on the analysis of the developed model and workflow of the proposed method of grinding technology developed new universal high-speed deep grinding of parts made of structural and tool materials , titanium , aluminum alloys and hard with crossed axes details and diamond or cbn wheel . Developed software - software as SAP software packages that allow managers to design programs when sanding on developed new technologies. Product Description popup.authors Єрошенко А.М. Венжега В.І. Кальченко В.І Кологойда А.В. Шкурко Ю.М. popup.nrat_date 2020-04-02 Close