喻正好,韩冰,陈松,陈燕,宋宗朋.钛合金空间弯管磁粒研磨工艺参数分析[J].表面技术,2018,47(4):183-189.
YU Zheng-hao,HAN Bing,CHEN Song,CHEN Yan,SONG Zong-peng.Process Parameters for Magnetic Abrasive Finishing of Titanium Alloy Spatial Elbows[J].Surface Technology,2018,47(4):183-189 |
| 钛合金空间弯管磁粒研磨工艺参数分析 |
| Process Parameters for Magnetic Abrasive Finishing of Titanium Alloy Spatial Elbows |
| 投稿时间：2017-10-16 修订日期：2018-04-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.04.027 |
| 中文关键词: 磁粒研磨 空间弯管 聚磁装置 响应面法 工艺参数 |
| 英文关键词:magnetic abrasive finishing spatial elbow magnetic fluxing device RSM process parameters |
| 基金项目:国家自然科学基金项目（51401201） |
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| Author | Institution |
| YU Zheng-hao | School of Mechanical Engineering & Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| HAN Bing | School of Mechanical Engineering & Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| CHEN Song | School of Mechanical Engineering & Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| CHEN Yan | School of Mechanical Engineering & Automation, University of Science and Technology Liaoning, Anshan 114051, China |
| SONG Zong-peng | JIER Machine-Tool Group Co., Ltd Technical School, Jinan 250022, China |
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| 中文摘要: |
| 目的 提高钛合金空间弯管内表面的研磨效率。方法 使用磁粒研磨法，使磨粒随研磨抛光装置旋转并在机械手驱动下沿弯管中心轴线做往复运动，完成对弯管内表面的研磨。选取了影响磁粒研磨工艺的聚磁装置进行分析，并将影响研磨的主要工艺参数（磁极转速、磁性磨粒粒径、轴向进给速度）用响应面试验设计法进行设计后开展研磨试验，根据试验数据得到了最佳研磨参数，并验证了优化后工艺参数的可行性和可靠性，最后通过超景深显微镜和粗糙度测量仪对研磨后的形貌进行分析。结果 通过试验数据分析可知，当磁极转速为550 r/min、磁性磨粒粒径为200 μm、轴向进给速度为1 mm/s时，与夹角为60°的聚磁装置配合使用效果最佳。当加工时间达到30 min时，空间弯管内表面粗糙度降至0.12 μm，且与以往未使用最佳条件加工至相同状态下耗时40 min相比，减少了25%的时间，且其表面的灰色锈斑、加工纹理和划痕被很好地去除，表面变得更加均匀、细密、光亮。结论 通过响应面法试验分析以及对聚磁装置形状选择可以有效提高研磨抛光装置对空间弯管内表面的加工效率，节省加工时间。 |
| 英文摘要: |
| The work aims to improve grinding efficiency of internal surfaces on titanium alloy spatial elbows. The method of magnetic abrasive finishing (MAF) was used to enable magnetic particles to rotate with polishing device and complete reciprocating motion along central axis of an elbow driven by a manipulator arm, and internal surface of the elbow were ground. Magnetic fluxing devices affecting magnetic abrasive grinding process were selected for analysis, and grinding tests were performed in the method of response surface method (RSM) provided with main process parameters (magnetic pole revolving speed, magnetic abrasive particle size, axial feed rate) affecting grinding, the optimum grinding parameters were obtained from the test data, and feasibility and reliability of optimized process parameters were verified. Finally, morphology of ground surface was analyzed with super-depth 3D electron microscope and roughness tester. Analysis of test data, best effects could be achieved by using magnetic fluxing devices at included angle of 60° provided with magnetic pole revolving speed of 550 r/min, magnetic abrasive particle size of 200 μm and axial feed speed of 1 mm/s. Surface roughness of the internal surface of spatial elbow decreased to 0.12 μm during 30 min processing, processing efficiency increased by 25% compared with 40 min required to reach the same state without the optimum conditions. In addition, gray rust, processing texture and scratches on the surface were fully removed, and surface quality became more uniform, fine and bright. Test analysis in response surface method and shape selection of magnetic fluxing device can effectively improve efficiency of processing internal surface of spatial elbow with polishing devices, and also save processing time. |
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