林晓辉,杨帆,陈博伦,刘建春,M. Saleh.6016铝合金的电磁驱动机械锤击平整加工[J].表面技术,2020,49(3):334-339.
LIN Xiao-hui,YANG Fan,CHEN Bo-lun,LIU Jian-chun,M. Saleh.6016 Aluminum Alloy Planarization Process by Electromagnetic Machine Hammer Peening[J].Surface Technology,2020,49(3):334-339 |
| 6016铝合金的电磁驱动机械锤击平整加工 |
| 6016 Aluminum Alloy Planarization Process by Electromagnetic Machine Hammer Peening |
| 投稿时间：2019-05-13 修订日期：2020-03-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2020.03.042 |
| 中文关键词: 6016铝合金 机械锤击 锤击参数 表面粗糙度 表面形貌 硬度 |
| 英文关键词:6016 aluminum alloy machine hammer peening peening parameters surface roughness surface topography hardness |
| 基金项目:福建省自然科学基金（2018J05095）；福建省中青年教师教育科研项目（JAT170429）；厦门理工学院科研攀登计划（XPDKQ18002） |
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| Author | Institution |
| LIN Xiao-hui | School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China |
| YANG Fan | School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China |
| CHEN Bo-lun | School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China |
| LIU Jian-chun | School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China |
| M. Saleh | School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China |
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| 中文摘要: |
| 目的 探究机械锤击平整加工对提高铝合金表面完整性和硬度的作用效果，研究锤击参数对平整表面质量的影响规律。方法 采用电磁驱动机械锤击技术对6016铝合金进行平整加工，研究基于光栅路径的电磁驱动机械锤击加工机理，并提出主要锤击参数，进而分析主要锤击参数对平整表面质量的影响规律。利用泰勒霍普生轮廓仪、光学显微镜和维氏硬度仪分别获得机械锤击后铝合金的表面粗糙度、表面形貌以及硬度。结果 电磁驱动机械锤击后，铝合金表面粗糙度达到0.05 μm，获得了类似镜面的锤击表面。相对于铣削后的表面，机械锤击可消除铣削痕迹，没有明显的表面缺陷和划痕，具有良好的表面平顺能力，同时硬度可提升大约25%~32%。小节距和进给速度、高锤击频率有助于减小表面粗糙度和提高硬度。此外，节距是最重要的锤击参数，极大地影响表面粗糙度和加工效率。结论 电磁驱动机械锤击对6016铝合金具有很好的表面强化和平整能力，可大幅减小表面粗糙度，并适当提高表面硬度，是一种新颖、有效、绿色的平整方式。 |
| 英文摘要: |
| The work aims to investigate the effects of machine hammer peening on improving surface integrity and hardness of aluminum alloy and research on influences of peening parameters on the peening surface quality. The electromagnetic machine hammer peening technology was adopted for 6016 aluminum alloy planarization process. The mechanism of electromagnetic machine hammer peening based on grate path planning was studied and main peening parameters were proposed. Furthermore, the influences of main peening parameters on peening surface quality were analyzed. Taylor Hobson PGI Dimension Profiler, optical microscope and vickers hardness tester were used to obtain surface roughness, topography and hardness of aluminum alloy after machine hammer peening. Results showed that the surface roughness of aluminum alloy could be reduced to 0.05 μm after electromagnetic machine hammer peening and smoothening effect up to mirror-like surface can be attained. Compared to the milled surface, the machine hammer peening could eliminate the milling tracks and there were barely any surface cracks and scratches, showing a good surface smoothing ability. Meanwhile, the hardness could be improved by about 25% to 32%. Small line pitch and feed rate, and high peening frequency were of benefit to decreasing surface roughness and improving hardness. In addition, the line pitch was the most important peening parameter due to its great effect on surface roughness and machine efficiency. Above all, the electromagnetic machine hammer peening is good to 6016 aluminum alloy surface strengthening and planarization that can decrease surface roughness sharply and improve surface hardness. It is a novel, effective and green planarization process technology. |
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