MATEC Web Conf.
Volume 80, 2016NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|Number of page(s)||8|
|Section||MS4: Advanced modeling of contact interfaces in forming|
|Published online||24 October 2016|
FEM-DEM coupling simulations of the tool wear characteristics in prestressed machining superalloy
1 Xiangtan University, Xiangtan, Hunan 411105, China
2 South China University of Technology, Guangzhou, Guangdong 510640, China
3 Hunan Nanfang Aviation Industry Co., Ltd, Zhuzhou, Hunan 412002, China
Corresponding Peng Ruitao: firstname.lastname@example.org
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 tool-chip behaviour is established based on 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.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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