| 高速铣削 Inconel718已加工表面残余应力的有限元分析 |
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| 引用本文： | 曹成铭,刘战强,林琪.高速铣削 Inconel718已加工表面残余应力的有限元分析[J].工具技术,2011,45(5):13-17. |
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| 作者姓名： | 曹成铭 刘战强 林琪 |
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| 作者单位： | 1. 山东大学
2. 高效洁净机械制造教育部重点实验室(山东大学) |
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| 基金项目： | 高档数控机床与基础制造装备科技重大专项资助项目(2009ZX04014-0432、009ZX04012-0312、009ZX04012-0122、010ZX04017-012) |
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| 摘 要： | 利用有限元法对镍基高温合金Inconel 718的高速正交铣削进行模拟仿真,获得切削力、切削温度和残余应力.结果表明在仿真切削速度100-3000m/min范围内,刀尖峰值温度随切削速度提高而增大,由于高温造成工件软化,从而使切削力随切削速度增大而减小;残余应力层深度在已加工表面O.5mm以下,最大表面残余应力为拉应力...
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| 关 键 词： | 有限元仿真 切削力 切削温度 残余应力 Inconel 718 |
Finite Element Analysis of Residual Stress for High Speed Orthogonal Milling of Inconel 718 |
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| Cao Chengming,Liu Zhanqiang,Lin Qi.Finite Element Analysis of Residual Stress for High Speed Orthogonal Milling of Inconel 718[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2011,45(5):13-17. |
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| Authors: | Cao Chengming Liu Zhanqiang Lin Qi |
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| Affiliation: | Cao Chengming,Liu Zhanqiang,Lin Qi School of Mechanical Engineering,Shandong University,Jinan 250061,China |
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| Abstract: | Cutting forces,cutting temperature and residual stress of high-speed orthogonal milling nickel-based superalloy Inconel 718 are simulated through FEM.The results show the peak temperature of tool tip increases with the increase of cutting speed.However,the cutting forces decrease with the increase of cutting speed due to workpiece being soften induced by elevated temperature.Residual stress layer presents in the sub-surface beneath the machined surface 0.5mm, the maximum residual stress are tensile stress.A... |
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| Keywords: | FEM cutting force cutting temperature residual stress Inconel 718 |
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