三通阀门内腔磨粒流光整加工流场仿真分析与试验验证  

Simulation Analysis and Experimental Verification of Abrasive Particle Feeding Flow Field in the Inner Cavity of a Three-Way Valve

作　　者：刘彦磊 孙玉利[1] 杨范轩 汪洪峰 范武林 胡鸿 左敦稳[1] LIU Yanlei;SUN Yuli;YANG Fanxuan;WANG Hongfeng;FAN Wulin;HU Hong;ZUO Dunwen(College of Mechanical and Electronic Engineering,Nanjing University of Aeronautics&Astronautics,Nanjing 210016,China;School of Mechanical and Electrical Engineering,Huangshan University,Huangshan 245041,China;Jiangsu Jitri Precision Manufacturing Research Institute Co.,Ltd.,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]黄山学院机电工程学院,黄山245041 [3]江苏集萃精密制造研究院有限公司,南京210016

出　　处：《南京航空航天大学学报(自然科学版)》2025年第1期130-138,共9页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：江苏省重点研发计划项目(产业前瞻与关键核心技术)(BE2022150);安徽省黄山市揭榜挂帅项目(2022KG-02);南京航空航天大学2024年度省级优秀毕业设计培优项目。

摘　　要：目前,三通阀门内腔多采用手工抛光技术,加工效率低,劳动强度大且环境友好性差。针对上述问题,本文开展三通阀门内腔磨粒流光整加工流场仿真分析与试验验证。通过建立流场仿真模型,对比了有芯模和无芯模情况下的流场分布,研制了专用的仿形夹具,并进行了试验验证。试验结果显示,使用芯模时阀门内壁面的粗糙度显著降低,大端降低率为77.79%,小端为77.26%,远超过无芯模加工的降低率(大端15.05%,小端11.62%)。因此,使用芯模不仅显著提高了加工质量,还提升了加工效率。The inner cavity of three⁃way valves is mostly polished by hand,which holds low processing efficiency,high labor intensity and poor environmental friendliness.In this regard,this paper carries out simulation analysis and experimental verification of the flow field of abrasive flow finishing in the inner cavity of a three⁃way valve.By establishing a flow field simulation model and comparing the flow field distribution with and without core molds,a special profiling fixture is developed and experimentally verified.The experimental results show that the roughness value of the inner wall surface of the valve is significantly reduced when the mandrel is used,with the reduction rate of the big end of 77.79%and the small end of 77.26%,which far exceeds the reduction rate of the coreless processing(15.05%for the big end and 11.62%for the small end).Therefore,using the mandrel can significantly improve the processing quality,as well as the processing efficiency.

关 键 词：三通阀门 磨粒流 仿真分析 夹具设计 表面粗糙度 

分 类 号：TG580.692[金属学及工艺—金属切削加工及机床]