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彈性約束自由磨料研拋加工的材料去除機(jī)理
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    摘要:

    彈性約束自由磨料研拋加工是懸浮液中的磨粒在工具的彈性約束下實(shí)現(xiàn)對工件表面的加工方法,。建立了反映加工過程影響因素的球形工具加工區(qū)域模型,，以及類球形和棱錐體磨粒的力學(xué)模型,，討論了材料去除機(jī)理，分析了加工自由曲面的可行性,。利用Al2O3和SiC兩種磨料對光學(xué)玻璃進(jìn)行了加工試驗(yàn),，結(jié)果表明彈性約束自由磨料加工方法應(yīng)用于超精密加工是有效的，并驗(yàn)證了對磨粒尺度影響規(guī)律的分析,。

    Abstract:

    The technique of free abrasive polishing with elastic restraint was proposed, and the work piece surface was polished by abrasive in suspending liquid with polishing tool as flexible restraint. The spherical tool machining area model reflecting the process influence factors, and the mechanical model of sphere and pyramid particles completely were established. The material removal mechanism was discussed and the feasibility of polishing free surface was analyzed subsequently. The experiments of polishing the optical glass use of two kinds of abrasive Al2O3 and SiC were carried out respectively. The validity of machining the ultra precise surface with flexible restraint abrasive was indicated, and the influence regulation of abrasive dimension was proved by the experimental results.

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張富,趙繼.彈性約束自由磨料研拋加工的材料去除機(jī)理[J].農(nóng)業(yè)機(jī)械學(xué)報,2008,39(2):147-150.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(2):147-150.

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