# Modeling and Simulation of Process-Machine Interaction in Grinding of Cemented Carbide Indexable Inserts

Shock and Vibration - Volume 2015 2015, Article ID 508181, 8 pages -

Research Article

Department of Mechanical and Electrical Engineering, School of Physics and Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China

State Key Laboratory for Manufacturing and Systems Engineering, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China

School of Mechanical Engineering, Shaanxi University of Technology, Hanzhong 723001, China

Received 26 August 2014; Accepted 15 October 2014

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Interaction of process and machine in grinding of hard and brittle materials such as cemented carbide may cause dynamic instability of the machining process resulting in machining errors and a decrease in productivity.
Commonly, the process and machine tools were dealt with separately, which does not take into consideration the mutual interaction between the two subsystems and thus cannot represent the real cutting operations.
This paper proposes a method of modeling and simulation to understand well the process-machine interaction in grinding process of cemented carbide indexable inserts.
First, a virtual grinding wheel model is built by considering the random nature of abrasive grains and a kinematic-geometrical simulation is adopted to describe the grinding process.
Then, a wheel-spindle model is simulated by means of the finite element method to represent the machine structure.
The characteristic equation of the closed-loop dynamic grinding system is derived to provide a mathematic description of the process-machine interaction.
Furthermore, a coupling simulation of grinding wheel-spindle deformations and grinding process force by combining both the process and machine model is developed to investigate the interaction between process and machine.
This paper provides an integrated grinding model combining the machine and process models, which can be used to predict process-machine interactions in grinding process.

Author: Wei Feng, Bin Yao, BinQiang Chen, DongSheng Zhang, XiangLei Zhang, and ZhiHuang Shen

Source: https://www.hindawi.com/