| 用于模具自由曲面的新型气囊抛光中磨粒场的分析 |
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| 引用本文： | 张利,李研彪,金明生,朴忠宇,计时鸣. 用于模具自由曲面的新型气囊抛光中磨粒场的分析[J]. 中国机械工程, 2014, 25(6): 832-835 |
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| 作者姓名： | 张利 李研彪 金明生 朴忠宇 计时鸣 |
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| 作者单位： | 1.浙江工业大学特种装备制造与先进加工技术教育部重点实验室,杭州,3100322.浙江省特种装备制造与先进加工技术重点实验室,杭州,310032 |
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| 基金项目： | 国家自然科学基金资助项目(50575208);浙江省自然科学基金资助项目(Y1111137);浙江省科技厅科研项目(2012C21093) |
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| 摘 要： | 为提高模具自由曲面抛光的效率和品质，提出一种基于柔性抛光理念的新型气囊抛光技术。研究了气囊抛光接触区内磨粒的运动轨迹、压力分布和抛光力的分布情况,建立了气囊抛光接触区内磨粒的运动模型、压力模型，揭示了气囊抛光接触区内磨粒直径对抛光力和被加工工件内部剪切应力的影响规律，研究了抛光过程中工件内部的剪切应力分布,明确了材料疲劳去除机理。为气囊抛光的应用奠定了理论基础。
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| 关 键 词： | 气囊抛光 压力 抛光力 材料疲劳去除机理 |
Abrasive Field Analysis of Mould Free Surface Polishing for a New Gasbag Polishing Method |
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| Zhang Li,Li Yanbiao,Jin Mingsheng,Piao Zhongyu,Ji Shiming. Abrasive Field Analysis of Mould Free Surface Polishing for a New Gasbag Polishing Method[J]. China Mechanical Engineering, 2014, 25(6): 832-835 |
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| Authors: | Zhang Li Li Yanbiao Jin Mingsheng Piao Zhongyu Ji Shiming |
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| Affiliation: | 1.Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,Ministry of Education,Zhejiang University of Technology,Hangzhou,3100322.Zhejiang Provincial Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Hangzhou, 310032 |
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| Abstract: | In order to improve the efficiency and quality of mould free surface polishing, a new gasbag polishing technology based on flexible polishing idea was applied. The motion trial, pressure distribution and polishing force distribution of abrasive particles in polishing contact area were studied first. Then, the motion model expression and pressure model expression of abrasive particles were established. The influence rules of abrasive particle diameters for polishing force and internal shear stress of workpiece were provided. The internal shear stress distribution of workpiece in the polishing process was researched and the material fatigue removal mechanism was clear. It provides the theoretical foundation for the application of gasbag polishing technology. |
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| Keywords: | gasbag polishing pressure polishing force material fatigue removal mechanism |
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