FEM-DEM coupling simulations of the tool wear characteristics in prestressed machining superalloy

Peng Ruitao, Tang Heng, Tang Xinzi, Zhou Zhuan, K. Saanouni
2016 MATEC Web of Conferences  
Due to the complicated contact loading at the tool-chip interface, ceramic tool wear in prestressed machining superalloy is rare difficult to evaluate only by experimental approaches. This study aims to develop a methodology to predict the tool wear evolution by using combined FEM and DEM numerical simulations. Firstly, a finite element model for prestressed cutting is established, subsequently a discrete element model to describe the toolchip behaviour is established based on the obtained
more » ... n the obtained boundary conditions by FEM simulations, finally, simulated results are experimentally validated. The predicted tool wear results show nice agreement with experiments, the simulation indicates that, within a certain range, higher cutting speed effectively results in slighter wear of Sialon ceramic tools, and deeper depth of cut leads to more serious tool wear.
doi:10.1051/matecconf/20168004001 fatcat:rcrfhlni3nh6dmovt7pp6w6k54