| 磁流变弹性体砂轮抛光镍基高温合金表面完整性研究 |
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| 引用本文： | 徐志强,易理银,张高峰,吴衡,王军.磁流变弹性体砂轮抛光镍基高温合金表面完整性研究[J].宇航材料工艺,2020,50(5):51-57. |
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| 作者姓名： | 徐志强 易理银 张高峰 吴衡 王军 |
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| 作者单位： | 湘潭大学 机械工程学院,湘潭大学 机械工程学院,湘潭大学 机械工程学院,湘潭大学 机械工程学院,湘潭大学 机械工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(No.51605410,No. 91860133) |
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| 摘 要： | 为了改善磨削后镍基高温合金GH4169的表面完整性,本文采用磁流变弹性体砂轮对镍基高温合金GH4169进行抛光试验研究。首先,通过模压成型的方法制备了磁流变弹性体砂轮,并对其表面微观形貌及不同磁场强度下的硬度进行了表征。其次将制备出的磁流变弹性体砂轮用于对镍基高温合金GH4169的抛光工艺试验中,并讨论抛光工艺参数中磁场强度对镍基高温合金表面完整性的影响。试验结果表明：在一定的磁场强度范围内,零件抛光后的表面粗糙度和显微硬度随着磁场强度的增大而减小,同时增大磁场强度也有利于改善零件的表面形貌,减少砂轮的磨损量,降低零件磨削后的亚表面损伤层厚度。
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| 关 键 词： | 磁流变弹性体 砂轮 镍基高温合金 表面完整性 抛光 |
| 收稿时间： | 2020/1/6 0:00:00 |
| 修稿时间： | 2020/4/20 0:00:00 |
Research on Surface Integrity of Polishing Nickel-Based Superalloys with Magnetorheological Elastomer Grinding Wheel |
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| Xu Zhiqiang,Yi Liyin,Zhang Gaofeng,Wu Heng and Wang Jun.Research on Surface Integrity of Polishing Nickel-Based Superalloys with Magnetorheological Elastomer Grinding Wheel[J].Aerospace Materials & Technology,2020,50(5):51-57. |
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| Authors: | Xu Zhiqiang Yi Liyin Zhang Gaofeng Wu Heng and Wang Jun |
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| Institution: | School of Mechanical Engineering,Xiangtan University,School of Mechanical Engineering,Xiangtan University,School of Mechanical Engineering,Xiangtan University,School of Mechanical Engineering,Xiangtan University,School of Mechanical Engineering,Xiangtan University |
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| Abstract: | To improve the surface integrity of nickel-based superalloy GH4169 after grinding, this paper uses a magnetorheological elastomer grinding wheel to perform a polishing test on the nickel-based superalloy GH4169. Firstly, a magnetorheological elastomer grinding wheel was prepared by compression molding, the surface micromorphology and hardness under different magnetic field strengths were characterized. Secondly, the prepared magnetorheological elastomer grinding wheel is used in the polishing process test of nickel-based superalloy GH4169, and the influence of magnetic field strength on the surface integrity of nickel-based superalloys in polishing process parameters is also discussed. The experiment results show that within a certain range of magnetic field strength, the surface roughness and microhardness of the part after polishing decrease with increasing magnetic field strength, and increasing the magnetic field strength is also beneficial to improve the surface morphology of the part reduce the amount of grinding wheel wear, reduce the thickness of the subsurface damage layer after the part is ground. |
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| Keywords: | Magnetorheological elastomer Grinding wheel Nickel-based superalloy Surface integrity Polishing |
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