摘要
针对光伏板维保系统履带支重轮传统铸造成形存在的摩擦磨损性能不足问题,提出了一种铸锻复合新工艺,通过铸造获得具有关键几何特征的工件毛坯,然后通过多级锻造实现最终成形。通过对比实验,研究了新工艺对材料摩擦磨损性能的影响规律和作用机制。结果表明,在磨粒磨损和接触疲劳磨损两种机制共同作用下,新工艺通过晶粒细化和位错强化能够实现材料强韧协同调控,提升磨粒磨损时抵抗挤压和切屑变形的能力,抑制接触疲劳磨损时疲劳裂纹的萌生和扩展,从而减缓疲劳剥层的产生。在铸锻复合工艺下,材料摩擦因数下降约20.6%,磨损率减少约26.5%,摩擦磨损性能得到明显提升。
Aiming at the problem of insufficient friction and wear performance during the traditional casting process of track support roller in the photovoltaic panel maintenance system,a novel casting-forging hybrid process was proposed.The workpiece blanks with critical geometric features were obtained by casting,and then the multi-stage forging was used to achieve the final forming.Through comparative experiments,the influence laws and acting mechanisms of the novel process on the friction and wear performance of material were investigated.The results show that under the combined action of abrasive wear and contact fatigue wear mechanisms,the novel process can achieve the synergistic strengthening and toughening regulation of material through grain refinement and dislocation strengthening,which enhances the ability to resist extrusion and chip deformation during abrasive wear and suppresses the initiation and propagation of fatigue cracks during contact fatigue wear,thus retards the generation of fatigue spalling.Under the casting-forging hybrid process,the friction factor of material decreases approximately by 20.6%and the wear rate decreases approximately by 26.5%.The friction and wear performance were improved obviously.
作者
雷和林
吴江波
周强
蒋辉
徐晨阳
秦训鹏
LEI He-lin;WU Jiang-bo;ZHOU Qiang;JIANG Hui;XU Chen-yang;QIN Xun-peng(State Power Investment Group Jiangxi Electric Power Co.,Ltd.,New Energy Power Generation Branch,Nanchang 330038,China;Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan 430070,China;Longzhong Laboratory in Hubei Province,Wuhan University of Technology,Xiangyang 441022,China)
出处
《塑性工程学报》
CAS
CSCD
北大核心
2023年第11期210-216,共7页
Journal of Plasticity Engineering
基金
湖北省技术创新专项重大项目(2020BED010)
国家电投集团科技项目(20231h0440)。
关键词
履带支重轮
铸锻复合工艺
摩擦磨损
马氏体组织细化
强韧协同调控
track support roller
casting-forging hybrid process
friction and wear
martensite microstructure refinement
synergistic strengthenin and toughening regulation
作者简介
通信作者:秦训鹏,男,1962年生,博士,教授,主要从事成形工艺装备的智能制造与再制造研究,E-mail:qxp915sohu.com;第一作者:雷和林,男,1970年生,硕士,高级工程师,主要从事新能源发电及电站运维管理技术研究,E-mail:asjxxny@126.com。
