Prediction of accuracy in cutting

To reduce the preproduction time and ensure continuous production of quality products is very important nowadays. An overview of the methods of mathematical modeling of the geometric accuracy in cutting is presented. Shortcomings of existing techniques are analyzed. A technique based on representing the technological system modules by finite elements interconnected at reference points on the base surface is proposed. Each module has its own coordinate system and associated reference points. These points are used to construct triangular meshes on the adjacent surfaces of the modules. A mathematical tool is developed to simulate the contact of vertices and faces belonging to the meshes of the basic elements of adjacent modules and determine the relative position of the coordinate systems of the modules. An example formation process is simulated and the geometric accuracy of machine-cut elements is estimated.

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