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| Modeling and damage prediction of coated carbide tool in cutting process based on discrete element method |
| Received:August 15, 2014 Revised:May 14, 2015 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201505015 |
| KeyWord:coated carbide tool cutting crack propagation discrete element method |
| Author | Institution |
| 姜胜强 |
湘潭大学 机械工程学院, 湘潭 |
| 李添添 |
湘潭大学 机械工程学院, 湘潭 |
| 刘浩瀚 |
湘潭大学 机械工程学院, 湘潭 |
| 谭援强 |
湘潭大学 机械工程学院, 湘潭 |
| 高伟 |
湘潭大学 机械工程学院, 湘潭 |
| 张高峰 |
湘潭大学 机械工程学院, 湘潭 |
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| Abstract: |
| In this paper,a discrete element model of WC matrix material which is the part of TiCN coated carbide tool was established.Base on numerical tests,such as uniaxial compression test,three point bending test and fracture toughness test,the microscopic parameters of matrix material in DEM model were calibrated.Then,starching test was used to calibrate the strength of interfacial bond between TiCN coating and WC matrix.According to the Merchant's cutting model,a tool-chip contact model was established.By applying a periodic boundary to tool-chip contact model,several different conditions of cutting processes were carried out to investigate the crack's propagation and damage of coated carbide tool,and the influence of cutting parameters to the coated carbide tool's crack propagation and damage were also predicted. |
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