杨欢,陈松,马瑞,陈燕,白洁,王亚军,郑俊超.磁力研磨法去除复杂轮廓蒙皮微孔边缘毛刺[J].表面技术,2021,50(9):342-351.
YANG Huan,CHEN Song,MA Rui,CHEN Yan,BAI Jie,WANG Ya-jun,ZHENG Jun-chao.Removal of Burrs on the Edges of Micropores in Complex Contour Skins by Magnetic Finishing[J].Surface Technology,2021,50(9):342-351 |
| 磁力研磨法去除复杂轮廓蒙皮微孔边缘毛刺 |
| Removal of Burrs on the Edges of Micropores in Complex Contour Skins by Magnetic Finishing |
| 投稿时间：2020-11-16 修订日期：2021-04-07 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.09.036 |
| 中文关键词: 蒙皮 微孔 毛刺 磁力研磨 磁极排布 表面光整加工 |
| 英文关键词:skin panel microporous burr magnetic abrasive finishing magnetic pole arrangement surface finishing |
| 基金项目:国家重点研发计划(2018YFB1105900);国家自然科学基金(51775258);精密与特种加工教育部重点实验室基金(B201703);辽宁省教育厅项目(2020FWDF07) |
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| Author | Institution |
| YANG Huan | School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| CHEN Song | School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| MA Rui | Beijing Power Machinery Research Institute, Beijing 100074, China |
| CHEN Yan | School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| BAI Jie | Beijing Power Machinery Research Institute, Beijing 100074, China |
| WANG Ya-jun | Beijing Power Machinery Research Institute, Beijing 100074, China |
| ZHENG Jun-chao | Beijing Power Machinery Research Institute, Beijing 100074, China |
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| 中文摘要: |
| 目的 去除复杂轮廓的钛合金蒙皮壁板微孔边缘毛刺和积瘤。方法 采用磁针磁力研磨法对蒙皮壁板微孔边缘的毛刺和积瘤进行去除。设计了3种不同磁极排布方案的磁极盘，并利用仿真软件模拟了3种不同磁极排布方案的磁场分布，使用排列优化后的磁极盘对蒙皮壁板进行研磨加工，利用3D超景深电子显微镜对加工前后的微孔形貌进行对比观察。结果 根据模拟结果选择了磁极排布的最佳方案。该方案中加工区域的磁场分布更均匀，优化后的磁极排布方式消除了加工区域的磁场盲区，使该处的磁感应强度峰值由300 mT增加到了500 mT，增大了圆周上磁感应强度梯度，有利于加工区域磁针的翻滚。基于该方案对蒙皮壁板进行研磨加工，确定了最佳试验参数:1 kgϕ1.2 mm×8 mm的磁针，磁极盘转速为1000 r/min，进给速度为8 mm/s。在此参数下，对8张蒙皮壁板加工50 min(每5 min改变一次磁极盘转向)，利用3D超景深显微镜观察蒙皮微孔形貌。研磨后，蒙皮微孔边缘毛刺和积瘤被有效去除，毛刺去除率可以达到95%以上，微孔边缘形貌完整、圆滑，蒙皮表面粗糙度得到改善，由加工前的2.6886 μm降低到1.7002 μm。结论 采用磁力研磨法对复杂轮廓蒙皮微孔进行精密研磨，可以有效去除微孔边缘的毛刺和积瘤，相较于原始手工加工，其加工效率提高了64倍，同时表面粗糙度得到改善，加工后的工件满足实际使用要求。 |
| 英文摘要: |
| In order to remove the burrs and tumors on the edges of the micropores of the skin siding with complex contours, in this paper, the magnetic needle magnetic finishing method was used to remove the burrs and tumors on the edges of the micropores of the skin siding. Designed three magnetic pole discs with different magnetic pole arrangement schemes, simulated the magnetic field distribution of the three different magnetic pole arrangement schemes by using simulation software, and used the optimized magnetic pole discs to grind and process the skin panel, using 3D The ultra-depth-of-field electron microscope to compare and observe the micro-hole morphology before and after processing. Based on the simulation results, the best solution was selected. The magnetic field distribution in the processing area was more uniform, and the blind area of the processing area was eliminated. The peak magnetic induction intensity there was increased from 300 mT to 500 mT, and the magnetic induction intensity gradient on the circumference was increased. This facilitates the rolling of the magnetic needle in the processing area. Based on the plan, the skin panel was ground and the best test parameters were determined. Under the conditions of selecting a 1 kg ϕ1.2 mm×8 mm magnetic needle, a magnetic pole plate rotating speed of 1000 r/min, and a feed speed of 8 mm/s, the 8 skin siding is processed for 50 minutes (changing the direction of the magnetic pole wheel every 5 minutes), and the morphology of the skin micropores was observed with a 3D ultra-depth-of-field microscope. The burrs and tumors on the edges of the skin micropores after grinding were effectively removed, and the burr removal rate can reach more than 95%, the morphology of the microporous edge was complete and smooth, and the surface roughness of the skin was improved, which was reduced from 2.6886 μm before processing to 1.7002 μm. The conclusion is that the magnetic grinding method can be used to precisely grind the complex contour skin micro-holes, effectively remove the burr buildup on the edge of the hole, and increase the processing efficiency to 64 times that of the original manual processing. At the same time, the surface roughness is improved, and the processed workpiece meets the actual requirements. |
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