本文選題：機械制造工藝與設(shè)備 + 耗散粒子動力學��； 參考：《兵工學報》2017年10期

【摘要】：磨粒流拋光作為一項精密加工技術(shù),其拋光溫度對工件質(zhì)量的影響在宏觀尺度和微觀尺度上已有較多的研究,而在介觀尺度內(nèi)的模擬仍很少涉及。通過構(gòu)建以原子團簇為主的磨粒,在介觀尺度下以耗散粒子動力學的方法研究不同溫度下磨粒對發(fā)動機噴油嘴內(nèi)表面的碰撞磨損行為。研究結(jié)果表明:溫度越高,磨粒流拋光質(zhì)量越好,在拋光溫度為300~310 K區(qū)域內(nèi)可獲得最佳的磨粒流拋光質(zhì)量,但拋光溫度高于310 K后,磨粒流拋光質(zhì)量有所下降;磨粒流拋光試驗與數(shù)值分析的結(jié)果一致,磨粒流拋光技術(shù)可有效實現(xiàn)對細小孔結(jié)構(gòu)的拋光,并可有效提高拋光精度和表面質(zhì)量。
[Abstract]:Abrasive flow polishing as a precision processing technology, the influence of the polishing temperature on the quality of the workpiece has been studied on the macro and micro scales, and the simulation in mesoscopic scale is still rarely involved. By constructing the particles based on the atomic cluster and using the dissipative particle dynamics method at the mesoscopic scale to study the different temperatures. The results show that the better the temperature is, the better the quality of the abrasive flow polishing is, the best polishing quality can be obtained in the 300~310 K region of the polishing temperature, but the polishing quality of the abrasive flow is decreased after the polishing temperature is higher than 310 K; the polishing test and numerical analysis of the abrasive flow flow The results show that the abrasive flow polishing technology can effectively achieve the polishing of fine holes, and can effectively improve the polishing accuracy and surface quality.
【作者單位】： 長春理工大學機電工程學院;山西省計量科學研究院;
【基金】：國家自然科學基金項目(51206011) 吉林省科技發(fā)展計劃項目(20160101270JC、20170204064GX) 吉林省教育廳項目(吉教科合字[2016]第386號)
【分類號】：TH117.1;TH16

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1 余璐云;介觀尺度切削誤差傳遞與加工精度控制研究[D];北京理工大學;2015年

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本文編號：2102756