МОДЕЛЬ ПРОГНОЗИРОВАНИЯ ОСЕВОЙ СИЛЫ РЕЗАНИЯ ПРИ СВЕРЛЕНИИ ОДНОНАПРАВЛЕННЫХ УГЛЕПЛАСТИКОВ С УЧЕТОМ ИЗНОСА РЕЖУЩЕГО ИНСТРУМЕНТА

Abstract

One of the most important tasks in the production of carbon fiber products is to ensure the specified accuracy and quality of the drilled holes. A model for predicting the thrust force, taking into account the degree of tool wear, is proposed. First, the geometric characteristics of the wear of the spiral drill tool are analyzed. Further, the contact conditions between the drill and the carbon fiber are determined in accordance with the geometric characteristics of the tool wear. Based on the mechanics of the contact interaction of surfaces, the thrust forces of the main cutting edges and the chisel edge are modeled, taking into account the degree of tool wear. The results obtained are integrated into the thrust force prediction model. An example of an experimental study of the drilling carbon fiber is given. The results obtained show a fairly accurate prediction of the cutting force, taking into account the wear of the cutting tool.