Abstract
The single degree of freedom numerical model of plain milling in time domain is represented in this article. This model allows to take into account the process damping phenomena, which is caused by contact interaction along the cutting edge flank face, on the dynamic behavior of the compliant technological system. The particular feature of this research is the usage of the iterative procedure to make more accurate the solutions on each time step of the modeling, which ensures the fulfillment of stiffness equations in the formula for the contact interaction forces calculation along the cutting edge flank face. The analysis of results, which were obtained using the represented milling dynamics model, shows that the process damping may have a significant influence on the technological system dynamics when machining on the modes with low value of the cutting tooth pass frequency ratio to the natural frequency of the system. The proposed methodology of the contact interaction forces calculation along the flank face of the cutting edge may be developed later on for the 3D multiaxial machining of figurine-shaped workpiece.
Highlights
Do the forced vibrations appear due to the cutting forces in the compliant system “tool-workpiece” during cutting, and the self-excited vibrations - the regenerative “chatter” [1]
The single degree of freedom model of the plain milling dynamics is presented in this article
This model allows to take into account the influence of the contact interaction along the cutting edge flank face on the dynamic behavior of the compliant technological system
Summary
Do the forced vibrations appear due to the cutting forces in the compliant system “tool-workpiece” during cutting, and the self-excited vibrations - the regenerative “chatter” [1]. The process damping phenomena has a considerable influence on the cutting dynamics, which is caused by the contact interaction between the worn-out flank face of the cutting edge and the machining workpiece material. The particular feature of this research is the usage of the stiffness relation between the contact force on the tool flank face and the worn-out cutting edge part penetration into the workpiece as the process damping process model. To fulfill this relation at each discrete moment of time, the iterative refining of the solution at each time step is used. The flat milling dynamics modelling results and the analysis of the influence of the contact interaction along the wornout part of the cutting edge flank face on the technological system dynamic behavior are given in this article
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
