China Mechanical Engineering ›› 2025, Vol. 36 ›› Issue (12): 2846-2853.DOI: 10.3969/j.issn.1004-132X.2025.12.005

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Research on Chemical-assisted Magnetorheological Shear Thickening Polishing of Titanium Alloy Tube Inner Surfaces

Zihao YANG(), Zenghua FAN(), Xiang ZHANG, Jun GAO   

  1. School of Mechanical Engineering,Shandong University of Technology,Zibo,Shandong,255049
  • Received:2024-12-29 Online:2025-12-25 Published:2025-12-31
  • Contact: Zenghua FAN

钛合金管内表面的化学辅助磁性剪切增稠抛光实验研究

杨自豪(), 范增华(), 张翔, 高军   

  1. 山东理工大学机械工程学院, 淄博, 255049
  • 通讯作者: 范增华
  • 作者简介:杨自豪,男,2000年生,硕士研究生。研究方向为精密与超精密加工技术。E-mail:15762052012@163.com
    范增华*(通信作者),男,1986年生,副教授、博士研究生导师。研究方向为精密与超精密加工技术、微操作机器人技术。发表论文50余篇。E-mail:zhfan@sdut.edu.cn
  • 基金资助:
    山东省自然科学基金(ZR2023ME060);山东省自然科学基金(ZR2022ME134);国家自然科学基金(51905323)

Abstract:

A magnetic shear thickening polishing method was proposed based on chemical assistance, and a novel polishing slurry was designed and prepared. A single-factor experiment was employed to study the impacts of H2O2 concentration, pH value, and surfactant concentration on the surface roughness of titanium alloy tube inner surfaces. Under the optimal conditions of 0.1% mass fraction H2O2 concentration, pH value of 5, and 0.3% mass fraction surfactant concentration, the value of surface roughness of titanium alloy tube inner surfaces is significantly reduced from 701 nm to 56 nm after 90 min polishing. Scanning electron microscopy and ultra-depth-of-field microscopy reveal that the chemical-assisted magnetorheological shear thickening polishing(CMSTP) may significantly remove the convex peaks and scratches generated during processing, resulting in a defect-free smooth surface.

Key words: titanium alloy tube, polishing, magnetorheological shear thickening, chemical-assisted, surface roughness, material removal rate

摘要:

提出基于化学辅助的磁性剪切增稠抛光方法,设计并制备了一种新型抛光液。采用单因素实验方案研究了H2O2质量分数、pH值和表面活性剂质量分数对钛合金(TA2)管内表面粗糙度的影响规律。在H2O2质量分数为0.1%、pH值为5和表面活性剂质量分数为0.3%的最佳条件下,经过90 min的抛光,钛合金管内表面的表面粗糙度Ra从701 nm降低至56 nm。扫描电镜和超景深显微镜观测发现,化学辅助磁性剪切增稠抛光方法能够显著减少加工过程中产生的凸峰和划痕,获得无缺陷的光滑表面。

关键词: 钛合金管, 抛光, 磁性剪切增稠, 化学辅助, 表面粗糙度, 材料去除率

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