邓曰明,赵玉刚,刘广新,刘谦,高跃武,代迪,张夏骏雨,宋壮.基于响应面法的镍钛合金血管支架管材内壁磁粒研磨工艺参数研究[J].表面技术,2021,50(10):384-393.
DENG Yue-ming,ZHAO Yu-gang,LIU Guang-xin,LIU Qian,GAO Yue-wu,DAI Di,ZHANG Xia-jun-yu,SONG Zhuang.Study on Process Parameters of Magnetic Abrasive Finishing of the Inner Wall of Ni-Ti Alloy Cardiovascular Stents Based on Response Surface Methodology[J].Surface Technology,2021,50(10):384-393 |
| 基于响应面法的镍钛合金血管支架管材内壁磁粒研磨工艺参数研究 |
| Study on Process Parameters of Magnetic Abrasive Finishing of the Inner Wall of Ni-Ti Alloy Cardiovascular Stents Based on Response Surface Methodology |
| 投稿时间：2021-06-17 修订日期：2021-09-28 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.10.040 |
| 中文关键词: 磁粒研磨 镍钛合金血管支架 响应曲面法 表面粗糙度 工艺参数优化 |
| 英文关键词:magnetic abrasive finishing Ni-Ti alloy cardiovascular stents response surface method surface roughness process parameter optimization |
| 基金项目:国家自然科学基金(51875328);山东省自然科学基金面上项目(ZR2019MEE013) |
|
|
| Author | Institution |
| DENG Yue-ming | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| ZHAO Yu-gang | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| LIU Guang-xin | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| LIU Qian | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| GAO Yue-wu | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| DAI Di | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| ZHANG Xia-jun-yu | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
| SONG Zhuang | School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究磁粒研磨工艺参数对超细长镍钛合金血管支架管材内壁表面粗糙度的影响。方法 搭建镍钛合金血管支架管材内壁磁粒研磨加工实验设备，使用自由降落气固两相流双级雾化快凝磁性磨料制备方法，制备了铁基金刚石磁性磨料，对内径为1.0 mm、外径为1.2 mm、长度为1800~2000 mm的镍钛合金血管支架管材内壁进行磁粒光整加工。以表面粗糙度为评价指标，设计4因素3水平的响应曲面实验，探究管材旋转速度、磁极进给速度、磨料填充量和磨料粒径对表面粗糙度的影响规律及其相互作用关系，并建立4个工艺参数关于表面粗糙度模型的回归模型。使用Design-Expect 12软件对工艺参数进行优化，得到最优工艺参数组合，并加以试验验证回归模型的准确性。结果 根据响应面分析结果，管材旋转速度与磁极进给速度、管材旋转速度与磨料填充量以及管材旋转速度与磨料粒径，对表面粗糙度的交互影响作用显著。以表面粗糙度为评价指标，各工艺参数对表面粗糙度的影响因素大小排序为:管材旋转速度＞磁极进给速度＞磨料填充量＞磨料粒径。以表面粗糙度值最小为目标，得到工艺参数组合为:管材旋转速度100 r/min，磁极进给速度5 mm/min，磨料填充量0.1 g，磨料粒径100.00 μm。预测表面粗糙度Ra为0.101 μm，试验实际表面粗糙度Ra为0.112 μm，实际值与预测值的误差为10.9%。结论 使用磁粒研磨法对镍钛合金血管支架管材内壁进行光整加工，解决了超细、超长的镍钛合金血管支架管材内壁的光整加工问题。响应曲面法可对镍钛合金血管支架管材内壁磁粒研磨工艺参数进行优化，建立的表面粗糙度模型具有良好的预测能力，对实际工程应用具有指导意义。 |
| 英文摘要: |
| The purpose of this study was to investigate the effect of magnetic abrasive finishing(MAF) process parameters on the inner surface roughness of Ni-Ti alloy cardiovascular stent tubes. An experimental equipment for magnetic particle grinding processing of the inner wall of the Ni-Ti alloy cardiovascular stent tubes was established. The magnetic particle finishing processing of the inner wall of the Ni-Ti alloy cardiovascular stent tubes with inner diameter of 1.0 mm, outer diameter of 1.2 mm and length of 1800~2000 mm was carried out with the iron-based diamond magnetic abrasive prepareds(MAPs) by the preparation method of free-falling gas-solid two-phase flow two-stage atomization and quick-setting magnetic abrasive. Taking the surface roughness as the evaluation index, a response surface experiment with 4 factors and 3 levels was designed to explore the influence of pipe rotation speed, feed velocity of magnetic poles, magnetic abrasive filling quantity and size of diamond MAPs on the surface roughness and their interaction relationship, and a regression model of four process parameters on the surface roughness model was established. The process parameters were optimized by Design-Expect 12 software, and the optimal combination of process parameters was obtained. The accuracy of the regression model was verified by experiments. According to the response surface analysis results, the interaction effects of pipe rotation speed and feed velocity of magnetic poles, pipe rotation speed and magnetic abrasive filling quantity, and pipe rotation speed and size of diamond MAPs on surface roughness are significant. Surface roughness was taken as the evaluation index, and the influencing factors of each process parameter on surface roughness were sorted as follows:pipe rotation speed > feed velocity of magnetic poles > magnetic abrasive filling quantity > size of diamond MAPs. Taking the minimum surface roughness value as the goal, the combination of process parameters was obtained as follows:pipe rotation speed 100 r/min, feed velocity of magnetic poles 5 mm/min, magnetic abrasive filling quantity 0.1 g and size of diamond MAPs 100 μm. The predicted surface roughness Ra is 0.101 μm and the actual surface roughness Ra is 0.112 μm, and the error between the actual value and the predicted value is 10.9%. The inner wall of Ni-Ti alloy cardiovascular stents was finished by magnetic abrasive finishing method, which solved the problem of finishing the inner wall of the ultra-fine and ultra-long Ni-Ti alloy cardiovascular stents. Response surface methodology (RSM) was used to optimize the process parameters of magnetic abrasive finishing of the inner wall of the Ni-Ti alloy cardiovascular stents. The established surface roughness model has good prediction ability and has guiding significance for practical engineering application. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号