面向再制造低拆解损伤需求的过盈配合界面织构试验研究

doi:10.3901/JME.2018.21.166

机械工程学报 ›› 2018, Vol. 54 ›› Issue (21): 166-172.doi: 10.3901/JME.2018.21.166

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面向再制造低拆解损伤需求的过盈配合界面织构试验研究

周丹¹, 高鑫², 易利详¹, 刘光复¹

1. 合肥工业大学机械工程学院合肥 230009;
2. 合肥工业大学智能制造技术研究院合肥 230009

收稿日期:2017-11-09 修回日期:2018-05-02 出版日期:2018-11-05 发布日期:2018-11-05
通讯作者: 高鑫(通信作者),男,1994年出生,硕士研究生。主要研究方向为再制造。E-mail:1970433375@qq.com
作者简介:周丹,女,1980年出生,博士,副教授,硕士研究生导师。主要研究方向为再制造,绿色设计与制造。E-mail:zhoudan80@126.com
基金资助:
国家自然科学基金资助项目（51405121，51635010）。

Experimental Study on the Texture of Interference Fit Interface for Remanufacturing of Low Disassembly Damage Demand

ZHOU Dan¹, GAO Xin², YI Lixiang¹, LIU Guangfu¹

1. College of Mechanical Engineering, Hefei University of Technology, Hefei, 230009;
2. Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009

Received:2017-11-09 Revised:2018-05-02 Online:2018-11-05 Published:2018-11-05

摘要/Abstract

摘要： 过盈配合界面在再制造拆解过程中，易形成划痕、犁沟、黏着堆积等干摩擦损伤，增加修复成本，降低再制造品过盈联结的可靠性。为降低界面拆解损伤，将表面织构引入配合表面，以KMN与40CrNiMo7为材料对象，通过试验研究了圆形凹坑织构对界面拆解损伤的影响。发现因织构的存在，降低了拆解滑动表面上的游离磨粒数量，界面拆解损伤明显减弱。且由承载能力试验发现，该织构能有效提高配合面初始承载能力。在结合面压力50～200 MPa范围内，织构表面的静摩擦因数（μ）较无织构表面提高了0.1左右。但拆解导致的微观划痕破坏了织构周边的环状熔融区，使得μ随拆解次数的增加而递减，经过两次再制造拆解模拟试验后，织构表面的μ值仅高于无织构表面0.01～0.03。

关键词: 拆解损伤, 承载能力, 过盈配合, 界面织构, 再制造

Abstract: In the process of disassembly on the interference fit interface, it's easy to form scratch, furrow or adhesion of dry friction damage, increasing the cost of repair. In order to reduce the interfacial damage, the surface texture is added to the mating surface. The effect of the texture of the circular pits on the interfacial damage is studied by using KMN and 40CrNiMo7 as materials. It is found that the number of free abrasive particles on the sliding surface is reduced due to the existence of texture, and the interfacial disassembly damage is significantly reduced. The experiment shows that the texture can effectively improve the bearing capacity of the mating surface. The static friction coefficient of textured surface is increased by about 0.1 compared with that without texture within the pressure range of 50~200 MPa. However, the micro scratch formed by the disassembly destroys the annular melting zone around the texture, and makes it decrease with the increase of the number of disassembly. After two times of remanufacturing disassembly experiment, the static friction coefficient of texture surface is only higher than that without texture surface 0.01~0.03.

Key words: bearing capacity, disassembly damage, interface texture, interference fit, remanufacturing

中图分类号:

TH11

周丹, 高鑫, 易利详, 刘光复. 面向再制造低拆解损伤需求的过盈配合界面织构试验研究[J]. 机械工程学报, 2018, 54(21): 166-172.

ZHOU Dan, GAO Xin, YI Lixiang, LIU Guangfu. Experimental Study on the Texture of Interference Fit Interface for Remanufacturing of Low Disassembly Damage Demand[J]. Journal of Mechanical Engineering, 2018, 54(21): 166-172.

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面向再制造低拆解损伤需求的过盈配合界面织构试验研究

Experimental Study on the Texture of Interference Fit Interface for Remanufacturing of Low Disassembly Damage Demand

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