介观尺度下磨粒流抛光温度对发动机喷油嘴质量影响研究

doi:10.3969/j.issn.1000-1093.2017.10.018

兵工学报 ›› 2017, Vol. 38 ›› Issue (10): 2010-2018.doi: 10.3969/j.issn.1000-1093.2017.10.018

介观尺度下磨粒流抛光温度对发动机喷油嘴质量影响研究

李俊烨¹，卫丽丽¹，张心明¹，乔泽民^1，2

(1.长春理工大学机电工程学院，吉林长春 130022; 2.山西省计量科学研究院, 山西太原 030002)

收稿日期:2017-04-06 修回日期:2017-04-06 上线日期:2017-11-22
通讯作者: 张心明（1967—），男，研究员，博士生导师 E-mail:zxm@cust.edu.cn
作者简介:李俊烨（1981—），男，副教授，博士生导师。E-mail：ljy@cust.edu.cn
基金资助:
国家自然科学基金项目(51206011); 吉林省科技发展计划项目(20160101270JC、20170204064GX); 吉林省教育厅项目（吉教科合字\[2016\]第386号）

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

LI Jun-ye¹， WEI Li-li¹， ZHANG Xin-ming¹， QIAO Ze-min^1,2

（1.College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin, China;2.Shanxi Province Academy of Metrological Sciences, Taiyuan 030002, Shanxi, China）

Received:2017-04-06 Revised:2017-04-06 Online:2017-11-22

摘要/Abstract

摘要： 磨粒流抛光作为一项精密加工技术，其抛光温度对工件质量的影响在宏观尺度和微观尺度上已有较多的研究，而在介观尺度内的模拟仍很少涉及。通过构建以原子团簇为主的磨粒，在介观尺度下以耗散粒子动力学的方法研究不同温度下磨粒对发动机喷油嘴内表面的碰撞磨损行为。研究结果表明：温度越高，磨粒流抛光质量越好，在抛光温度为300~310 K区域内可获得最佳的磨粒流抛光质量,但抛光温度高于310 K后，磨粒流抛光质量有所下降；磨粒流抛光试验与数值分析的结果一致，磨粒流抛光技术可有效实现对细小孔结构的抛光，并可有效提高抛光精度和表面质量。

关键词: 机械制造工艺与设备, 耗散粒子动力学, 磨粒流, 介观尺度, 碰撞磨损行为, 抛光温度

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

中图分类号:

李俊烨，卫丽丽，张心明，乔泽民. 介观尺度下磨粒流抛光温度对发动机喷油嘴质量影响研究[J]. 兵工学报, 2017, 38(10): 2010-2018.

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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介观尺度下磨粒流抛光温度对发动机喷油嘴质量影响研究

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

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