| 拉伸装夹铣削对铝合金表层残余应力的影响 |
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| 引用本文： | 唐国兴,郭魂.拉伸装夹铣削对铝合金表层残余应力的影响[J].常州工学院学报,2007,20(6):10-13. |
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| 作者姓名： | 唐国兴 郭魂 |
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| 作者单位： | 常州工学院机电工程学院,江苏,常州,213002 |
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| 基金项目： | 江苏省高校自然科学基金
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江苏省重点实验室开放课题 |
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| 摘 要： | 以铝合金为研究对象,提出将拉紧装夹应用到铣削加工中,以便对加工后工件表层的应力状态进行控制,改善零件的疲劳性能。通过试验,得出了拉伸应力、工件厚度及铣削用量等因素对表面残余应力的影响趋势。研究表明,拉伸装夹条件下铣削可以一次性实现对工件表面残余应力的控制,从而获得理想的残余压应力,对改善零件的疲劳性能极其有益。在文章的实验条件下,获得的工件表面残余应力均为压应力,最大达-250M Pa。
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| 关 键 词： | 残余应力 拉伸装夹 铣削 |
| 文章编号： | 1671-0436(2007)06-0010-04 |
| 修稿时间： | 2007年11月5日 |
Experimental Study on Residual Stress of Milling- machined Aluminum Alloy under Stretched Fixation |
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| TANG Guo-xing,GUO Hun.Experimental Study on Residual Stress of Milling- machined Aluminum Alloy under Stretched Fixation[J].Journal of Changzhou Institute of Technology,2007,20(6):10-13. |
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| Authors: | TANG Guo-xing GUO Hun |
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| Abstract: | The stretched fixation(SF) is used in the milling operation to control the residual stresses on the machined work surface and to improve the fatigue performance of the work.By experiments,the effects of SF,the work thickness and milling parameters on the residual stresses on the milled surface are obtained.It shows that the residual stresses on the milled surface can be controlled to a compressive level by the milling under SF,and it can improve the fatigue performance working.Under experimental conditions,residual stresses on the work surface are all compressive,among which the highest reaches to-250 MPa. |
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| Keywords: | residual stress the stretched fixation milling |
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