|
|||||
|
|
| Luster Polish Strengthening Treatment for Raceway Surface of Aeroengine Bearings | |
| 作者姓名： | 邓四二 滕弘飞 马付建 郝建军 陈涛 |
| 作者单位： | School of Mechanical Engineering Dalian University of Technology，School of Mechanical Engineering，Dalian University of Technology，School of Mechanical Engineering，Henan University of Science and Technology，School of Mechanical Engineering，Henan University of Science and Technology，School of Mechanical Engineering，Henan University of Science and Technology，Dalian 116023，China，School of Mechanical Engineering Henan University of Science and Technology，Luoyang 471003，China，Dalian 116023，China，Luoyang 471003，China，Luoyang 471003，China，Luoyang 471003，China |
| 基金项目： | Foundation item The National Key Project of China during the 10th Five-Year Plan Period （ No. MKPT-01-004（ZD） ） |
| 摘 要： | A new surface strengthening technology, luster polish strengthening treatment, was proposed to treat the raceway surface of aeroengine bearings (9Cr18Mo) with the centrifugal strengthening machine exclusively designed for luster polish strengthening treatment. The experimental results showed that luster polish strengthening treatment produced a compressive residual stress layer with a depth of over 80 μm below the surface of the bearing raceway, and thus effectively removed the metamorphic layer in the raceway surface. After luster polish strengthening treatment, the average surface hardness of the aeroengine bearing raceway was increased from 61.02 HRC to 63.01 HRC, the surface roughness was reduced from 0.06 μm to 0.03 μm, and the contact fatigue life of the aeroengine bearings was improved by about 90%, with the dispersion of fatigue life being reduced remarkably. Theoretical calculation result agrees with that obtained by experiment. |
| 关 键 词： | 飞机 轴承 航天器引擎 表面处理 疲劳寿命 |
| 文章编号： | 1005-2429（2007）03-0197-06 |
| 修稿时间： | 2005-08-15 |
Luster Polish Strengthening Treatment for Raceway Surface of Aeroengine Bearings |
|
| DENG Si-er,TENG Hong-fei,MA Fu-jian,HAO Jian-jun,CHEN Tao.Luster Polish Strengthening Treatment for Raceway Surface of Aeroengine Bearings[J].Journal of Southwest Jiaotong University,2007,15(3):197-202. | |
| Authors: | DENG Si-er TENG Hong-fei MA Fu-jian HAO Jian-jun CHEN Tao |
| Institution: | 1. School of Mechanical Engineering, Dalian University of Technology, Dalian 116023, China;School of Mechanical Engineering, Henan University of Science and Technology, Luoyang 471003, China 2. School of Mechanical Engineering, Dalian University of Technology, Dalian 116023, China 3. School of Mechanical Engineering, Henan University of Science and Technology, Luoyang 471003, China |
| Abstract: | A new surface strengthening technology, luster polish strengthening treatnent, was proposed to treat the raceway surface of aeroengine bearings (9Cr18Mo) with the centrifugal strengthening machine exclusively designed for luster polish strengthening treatment. The experimental results showed that luster polish strengthening treatment produced a compressive residual stress layer with a depth of over 80 μm below the surface of the bearing raceway, and thus effectively removed the metamorphic layer in the raceway surface. After luster polish strengthening treatment, the average surface hardness of the aeroengine bearing raceway was increased from 61.02 HRC to 63.01 HRC, the surface roughness was reduced from 0.06 μm to 0.03 μm, and the contact fatigue life of the aeroengine bearings was improved by about 90%, with the dispersion of fatigue life being reduced remarkably.Theoretical calculation result agrees with that obtained by experiment. |
| Keywords: | Aircraft engines Rolling bearing Luster polish strengthening Surface treatment Fatigue life |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |