Impact of Abrasive Flow Polishing Temperature on Nozzle Quality under Mesoscopic Scale

doi:10.3969/j.issn.1000-1093.2017.10.018

Abstract

Abstract: The influence of the polishing temperature on the quality of workpiece during abrasive flow polishing as a precision machining technology has been studied in the macroscopic and microscopic scales, and the simulation in the mesoscopic scale is still rarely involved. By constructing the abrasive grains mainly composed of atomic clusters, the dissipative particle dynamics method is used to study the impact wear behavior of abrasive grains on the inner surface of engine injector at different temperatures. The results show that the higher the temperature is, the better the polishing quality of abrasive flow is, and the best abrasive grain polishing quality at the polishing temperature of 300~310 K is achieved. However, when the polishing temperature is higher than 310 K, the abrasive flow polishing quality is declined. The results show that the abrasive flow polishing technology can be used effectively to achieve the polishing of fine pore structure, and improve the polishing accuracy and surface quality. Key

Key words: manufaturingtechnologyandequipment, dissipativeparticledynamics, abrasiveflow, mesoscopicscale, impactwearbehavior, polishingtemperature

CLC Number:

LI Jun-ye， WEI Li-li， ZHANG Xin-ming， QIAO Ze-min. Impact of Abrasive Flow Polishing Temperature on Nozzle Quality under Mesoscopic Scale[J]. Acta Armamentarii, 2017, 38(10): 2010-2018.

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第38卷
第10期2017 年10月兵工学报ACTA
ARMAMENTARIIVol.38No.10Oct.2017

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