在能源动力、汽车、航空航天、模具制造等关键零部件的加工过程中,球头铣刀因其特有的刀具几何结构,常作为零件加工的最终成型刀具.考虑到在球头铣刀立铣加工中不同的刀具与工件相对姿态会对切削过程产生不同的影响,本文研究切屑形成和不同走刀方式下切削过程中各物理量(切削力、切削温度等)的变化情况,结合有限元仿真技术在切削加工中的应用,建立硬质合金球头铣刀铣削斜面的有限元模型,模拟相同切削参数下,八种不同走刀方式的球头铣削过程,分析刀具切入切出工件时切屑的形成过程,探究切削力和切削温度的变化规律.仿真结果表明:不同的走刀方式,平均切削合力各不相同,同时切屑和工件的最大切削温度也出现较大差异,而斜坡上坡逆铣的走刀方式所对应的平均切削合力和最大切削温度均最优.
参考文献
| [1] | M. Fontaine;A. Moufki;A. Devillez;D. Dudzinski .Modelling of cutting forces in ball-end milling with tool-surface inclination - Part I: predictive force model and experimental validation[J].Journal of Materials Processing Technology,2007(1/3):73-84. |
| [2] | 孔虎星;郭拉凤;尹晓霞.基于ABAQUS的钛合金切削有限元分析[J].机电技术,2004(04):23-26. |
| [3] | Shatla M;Kerk C;Altan T .Process modeling in machining.Part Ⅰ:determination of flow stress data[J].International Journal of Machine Tools and Manufacture,2001,41(10):1511-1534. |
| [4] | 王苏东.基于DEFORM-3D的钛合金切削过程有限元仿真[J].装备制造技术,2009(12):30-32,40. |
| [5] | X. X. Chen;J. Zhao;Y. E. Li;S. G. Han;Q. Y. Cao;A. H. Li .Numerical modelling of high-speed ball end milling with cutter inclination angle[J].Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture,2012(4):606-616. |
| [6] | 庞俊忠,王敏杰,段春争,杨宇.高速铣削P20和45淬硬钢的切削力[J].中国机械工程,2007(21):2543-2546. |
| [7] | 李安海,赵军,王泽明,郑伟.WC-Co硬质合金的弹性性能[J].硬质合金,2011(03):194-198. |
| [8] | K. -D. Bouzakis;P. Aichouh;K. Efstathiou .Determination of the chip geometry, cutting force and roughness in free form surfaces finishing milling, with ball end tools[J].International Journal of Machine Tools & Manufacture: Design, research and application,2003(5):499-514. |
| [9] | Hiroyasu IWABE;Keisuke SHIMIZU;Mitunori SASAKI .Analysis of Cutting Mechanism by Ball End Mill Using 3D-CAD (Chip Area by Inclined Surface Machining and Cutting Performance Based on Evaluation Value)[J].JSME International Journal, Series C. Mechanical Systems, Machine Elements and Manufacturing,2006(1):28-34. |
| [10] | Harshad A. Sonawane;Suhas S. Joshi .Analytical modeling of chip geometry and cutting forces in helical ball end milling of superalloy Inconel 718[J].CIRP Journal of Manufacturing Science and Technology,2010(3):204-217. |
| [11] | Yong Huang;Steven Y. Liang .CUTTING TEMPERATURE MODELING BASED ON NON-UNIFORM HEAT INTENSITY AND PARTITION RATIO[J].Machining Science and Technology,2005(3):301-323. |
| [12] | 陈晓晓,赵军,李月恩,韩式国,曹清园.圆形刀片铣削P20模具钢的有限元模拟[J].制造技术与机床,2011(11):101-105. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%