نوع مقاله : مقاله پژوهشی
1 دانشجوی دکتری گروه مکانیک، دانشکده مکانیک، دانشگاه یزد، یزد، ایران
2 دانشکده مکانیک، دانشگاه یزد، یزد، ایران
3 عضو هیئت علمی دانشکده مهندسی مکانیک دانشگاه یزد
عنوان مقاله [English]
Due to its complex dynamics, turning process has always been of interest to machining researchers and much effort has been made to determine the forces. The aim of this paper is to define the amount of difference between Altintas formula, dynamometer value, and the value which is obtained by providing a new method based. Practical tests are done to verify the results. The tests are performed for boring state with different parameters and the force signal is determined using a dynamometer andthe new method in which the acceleration of one point of the tool is used. Using the results of these two signals, the parameters needed to calculate the force components in Altintas approach and the new method are derived. The results show that the tool tip force, resulting from the new method which considered the effects of displacement and acceleration tool, obtains the greatest force amplitude. The force at the end of the tool which is derived by dynamometer has lower and the force resulting from Altintas approach has the lowest amplitude, in which the cutting force is only considered as a factor of chip dimensions. Therefore, because of their important differences, these forces should not be used interchangeably.