借助X射线衍射方法测量了反应烧结碳化硅(RBSiC)材料的磨削表面的残余应力状态,并根据断裂力学评价了磨削引入的裂纹尺寸,分析了RBSiC的弯曲强度受磨削引入裂纹和残余应力的影响.研究表明,由于磨削过程中与磨削方向有关的机械载荷占主导作用,使磨削后的表面残余应力具有方向依赖性.砂轮轴向进给从0.90μm/s增加到1.35μm/s,磨削表面的残余压应力数值降低,计算得到的磨削引入的裂纹尺寸增大,导致强度下降.
参考文献
| [1] | 黄清伟,高积强,金志浩.西安交通大学学报,2000,34(2):89-90. |
| [2] | Robichaud J,Guregian J,Schwalm M.SiC optics for Earth observing applications.Earth Observing Systems VIII.Proc.SPIE 5151,2003:53-62. |
| [3] | Tobin E,Magida M,Kishner S.Design,fabrication,and test of a meter-class reaction-bonded SiC mirror blank.Silicon carbide materials for optics and precision structures.Proc.SPIE 2543,1995:12-21. |
| [4] | Gopal A V,Rao P V.International Journal of Machine Tools and Manufacture,2003,43(13):1327-1336. |
| [5] | Zhang Y M,Zhang J H,Han J C,et al.Materials Letters,2004,58(7):1204-1208. |
| [6] | Bandyopadhyay B P,Ohmori H.International Journal of Machine Tools & Manufacture,1999,39(5):839-853. |
| [7] | 朱洪涛,林滨,吴辉,等.精密制造与自动化,2004,2:15-18. |
| [8] | 王西彬,李相真.金刚石与磨料磨具工程,1997,6(102):18-23. |
| [9] | Eigenmann B,Macherauch E.Nuclear Instruments and Methods in Physics Research B,1995,97(1):92-97. |
| [10] | Immelmann S,Welle E,Reimers W.Material Science and Engineering A,1997,238(2):287-292. |
| [11] | Genzel C,Klaus M,Denks I.Material Science and Engineering A,2005,390(1):376-384. |
| [12] | Yang H T,Gao L,Yuan R Z,et al.Materials Chemistry and Physics,2003,80(1):305-308. |
| [13] | 李伯民,赵波.实用磨削技术.北京:机械工业出版社,1996:42-49. |
| [14] | Tomba A G,Cavalieri A L.Materials Research Bulletin,2000,35(7):1077-1085. |
| [15] | Roberts S G,Lawrence C W,Bisrat Y.J.Am.Ceram.Soc.,1999,82(7):1809-1816. |
| [16] | Li K,Liao T W.Journal of Materials Processing Technology,1996,57(3):207-220. |
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%