摘要
随着科学技术的发展,零件表面残余应力方向的控制研究一直是机械加工领域中需要控制的关键点之一。磨削作为常用的机械精加工工序,对零件表面质量和表面粗糙度的影响至关重要,被磨削表面的残余应力是可以通过加工设备参数来控制和调整的,如磨削进给量、磨削进给速度和磨削速度等。以某种型号柴油机高压燃油喷射系统喷油器内部滑阀偶件为试验对象,针对该偶件零部件滑阀微小密封棱边进行低应力磨削研究,探索磨削加工参数和砂轮参数对微小密封棱边磨削加工表面完整性与密封性的影响,通过试验分析和验证低应力磨削对滑阀微小密封棱边表面质量的影响。研究证明,低应力磨削可以有效地提高零件表面的完整性和密封性。
With the development of science and technology,the research on the control of residual stress direction on the surface of parts has always been one of the key points to be controlled in the field of machining.The grinding as a commonly used mechanical finishing process was very important to affect the surface quality and roughness of parts.The residual stress being grinded on the ground surface could be controlled and adjusted by the parameters of machining equipment such as grinding feed rate,grinding feed speed,grinding speed and so on.Took the internal slide valve precision pair which was used by a high-pressure fuel injection system of a type of diesel engine as the experimental object,it was finished that research on the low-stress grinding of the micro seal edge of the slide valve aimed at the couple parts,and it was explored that the influence of the grinding processing parameters and the grinding wheel parameters on the integrity and tightness of the micro seal edge grinding surface.It was analyzed and verified that the effect of low-stress grinding on the surface quality of the small tiny sealing edge of the slide valve by experiment.The researching results showed that low-stress grinding could effectively improve the integrity and sealing of the surface of the parts.
作者
胡守琦
徐清
蒋立坤
孙晓飞
李晓霞
白树学
管秀云
郑治华
HU Shouqi;XU Qing;JIANG Likun;SUN Xiaofei;LI Xiaoxia;BAI Shuxue;GUAN Xiuyun;ZHENG Zhihua(Shanxi Diesel Industry Co.,Ltd.,Datong 037036,China;China Ordnance Industry Standardization Research Institute,Beijing 100089,China)
出处
《新技术新工艺》
2020年第10期59-63,共5页
New Technology & New Process
基金
国防科工局基础产品创新计划车用动力科研专项(DEDPHF)。
关键词
共轨喷油器
滑阀偶件
表面完整性
精密磨削
砂轮参数
高压密封平面
common rail injector
slide valve couple
surface integrity
precision grinding
grinding wheel parameters
high pressure seal plane
