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液流懸浮超光滑加工硬脆材料去除機(jī)理
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    摘要:

    結(jié)合動(dòng)態(tài)壓痕斷裂力學(xué)和粒子沖擊磨損理論，建立了納米磨粒沖擊工件表面微觀粗糙峰的理論模型，研究了加工區(qū)內(nèi)材料的去除機(jī)理，并進(jìn)行了鋁合金和K9玻璃液流懸浮加工實(shí)驗(yàn)。理論分析和實(shí)驗(yàn)結(jié)果表明，液流懸浮超光滑加工是加工液中的納米磨粒沖擊工件表面實(shí)現(xiàn)對(duì)表面粗糙峰微去除的過(guò)程，能夠在K9玻璃表面獲得無(wú)加工變質(zhì)層和亞表面損傷的納米級(jí)超光滑表面。

    Abstract:

    The dynamic indentation fracture mechanics and particles impacting erosion theory were applied to the research of hydrodynamic suspension ultra-smooth machining. The theoretic model of nanoscale abrasive particles impacting workpiece surface micro asperities was established. Subsequently, the experiments of machining for aluminum alloy and K9 glass were carried out respectively. The results show that the hydrodynamic suspension machining is the process of nanoscale impacting the surface asperities to realize the micro removal, and the nanaoscale ultra-smooth surface without damage can be obtained during hydrodynamic suspension machining for K9 glass.

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曹志強(qiáng),詹建明,張富.液流懸浮超光滑加工硬脆材料去除機(jī)理[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(11):164-168.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(11):164-168.

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