摘要
磁流变抛光是获得光滑光学表面的理想工艺之一.为了获得一种可用于磁流变抛光中的环形磁场,设计了一种新型的环带式磁场结构,并对其进行模拟与分析,利用该磁场结构构造了一种面接触式的磁流变抛光设备.实际测量证明该磁场结构可形成满足磁流变抛光要求的高梯度磁场.将环形磁极浸入磁流变抛光液中,可使其形成圆环状的Bingham凸起;利用它对K9玻璃进行抛光,可使其表面粗糙度达到约为1 nm的水平.
Magnetorheological finishing （MRF） is one of the ideal ways to obtain glassy optical surfaces. In order to obtain an annulus magnetic field which can be used in MRF, a new annulus structure of magnetic field was designed, simulated and analyzed. Based on the annulus structure of magnetic field proposed in the paper, a surface contact MRF device was formed. The practical measurement proves that the annulus structure can produce a high intensity gradient magnetic field which is required in MRF. Dipping the magnetic pole into magnetorheological solution and an annular Bingham bulge in the solution can be realized. The polishing practicability of the proposed device is verified for polishing K9 glass, the surface roughness of the experiment pieces reachs lnm.
出处
《西安工业大学学报》
CAS
2007年第3期212-214,218,共4页
Journal of Xi’an Technological University
基金
陕西省教育厅科研项目(05JS03)
关键词
磁流变抛光
环带磁场
磁场结构
表面粗糙度
magnetorheological finishing
annulus magnetic field
magnetic field structure
surface roughness
