磁射流抛光技术研究  

Study on magnetorheological jet polishing technology

作　　者：张学成[1] 戴一帆[1] 李圣怡[1] 彭小强[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《机械设计与制造》2007年第12期114-116,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(50375156)

摘　　要：磁射流抛光技术是一种新型的确定性精密抛光方法。磁射流抛光利用局部外加轴向磁场固化含有磨料的磁流变液射流,产生准直的硬化射流束进行相对远距离的确定性精密抛光。介绍了该工艺的工作原理,聚束射流形成的理论分析,并通过一系列实验验证了该工艺的优势。实验结果表明磁射流集束性好,对于抛光距离不敏感,因此在高陡度的凹形光学零件和内腔等复杂形面的确定性精密抛光中具有潜在的独特优势。Magnetorheological jet polishing （ MJP ） is a new deterministic precision finishing technology. In MJP, the jet of magnetorheological fluid containing abrasives was magnetized by an external localaxial magnetic field and became a collimated and coherent hard jet, which can polish the surface placed at a relatively far distance in a deterministic process.The operating principle of MJP was introduced first. And then the formation of collimated jet was analyzed.Finally several experiments were conducted to demonstrate the ability to polishing concave shapes.The experiment results show that the collimated jet of MR fluid is insensitive to the offset distance and MJP can provide potential advantages to polish steep concaves and parts with a variety of cavities in a deterministic manner.

关 键 词：磁射流抛光 集束射流 高陡度凹形零件 确定性抛光 

分 类 号：TH161[机械工程—机械制造及自动化]