Development on Synergistic Process and Machine Tools Integrated Inclined Axis Grinding and Magnetorheological Polishing for Small Aspheric Surface

doi:10.3901/JME.2018.21.205

Journal of Mechanical Engineering ›› 2018, Vol. 54 ›› Issue (21): 205-211.doi: 10.3901/JME.2018.21.205

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Development on Synergistic Process and Machine Tools Integrated Inclined Axis Grinding and Magnetorheological Polishing for Small Aspheric Surface

YIN Shaohui^1,2, GONG Sheng^1,2, HE Bowen^1,2, CHEN Fengjun¹, YIN Ziqiang³, CAO Chengguo⁴

1. National Engineering Research Center for High Efficiency Grinding, Hunan University, Changsha 410082;
2. Hunan Provincial Key Laboratory of Intelligent Laser Manufacturing, Hunan university, Changsha 410082;
3. Hunan Key Laboratory of Ultra-precision Machining Technology, National University of Defense Technology, Changsha 410073;
4. Beijing Precision Machinery & Engineering Research Co., LTD, Beijing 101312

Received:2017-12-06 Revised:2018-06-18 Online:2018-11-05 Published:2018-11-05

Abstract

Abstract: To improve machining efficiency and accuracy for small aspheric molds, a synergistic process integrated inclined axis grinding and magnetorheological polishing is proposed. It can reduce clamping time and installation error to integrate the two ultra-precision processes on one machine. A new type of machining tool is developed. Grinding experiments for aspheric molds in diameter Ф6.6mm are carried out. Surface roughness Ra of is largely improved from R_a 6.8 nm after grinding to R_a 0.7 nm after magnetorheological polishing. The ground surface is reached PV(Peak-Valley) 221 nm after polishing. The experimental results showed that the synergistic process may improve efficiency and accuracy for machining small aspheric molds.

Key words: combined machining, inclined magnetorheological polishing, inclined ultra-precision grinding, small aspheric surface

CLC Number:

TH162
TG596

YIN Shaohui, GONG Sheng, HE Bowen, CHEN Fengjun, YIN Ziqiang, CAO Chengguo. Development on Synergistic Process and Machine Tools Integrated Inclined Axis Grinding and Magnetorheological Polishing for Small Aspheric Surface[J]. Journal of Mechanical Engineering, 2018, 54(21): 205-211.

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Development on Synergistic Process and Machine Tools Integrated Inclined Axis Grinding and Magnetorheological Polishing for Small Aspheric Surface

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