太原理工大学学报2017，Vol.48Issue(6)：996-999,4.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.06.021
不锈钢毛细管的磨料流加工特性研究
Research of Abrasive Flow Machining Properties of Stainless Steel Capillary
摘要
Abstract
In view of high precision polishing requirements for large length-to-diameter ratio stainless steel capillary the applicable conditions of abrasive flow machining process were investi-gated.Abrasive flow machining (AFM)technology is a relatively new finishing machining meth-od,making semi-solid extrusion through workpiece for machining surface to achieve the purpose of deburring,polishing,rounding and removing recast layer,which has been applied to the sur-face,specially shaped hole cavity,micro-hole,cross hole,bend,long tube,ceramic parts such as polishing processing.The key parameter of abrasive flow machining technology is fluid viscosity of abrasive,a suitable viscosity can ensure the smooth flow of abrasive through capillary,as well as a satisfactory polishing effect.In order to obtain feasible viscosity parameters,ANSYS Work-bench Fluent was used to analyze the flow state of abrasive.The simulation results show that the fluid abrasive with viscosity of 104 ,105 ,106 mm2/s can not flow through capillary smoothly;that with a viscosity lower than 104 mm2/s can flow through capillary smoothly,but the inlet pressure is too high,far more than the equipment safety bearing limit;5.585 Pa·s abrasive can smoothly flow through capillary at a relatively uniform velocity,and inlet pressure is within the scope of safe equipment load.According to the results,low viscosity fluid abrasive and special fixture were developed,and polishing experiments were conducted.A satisfactory processing effect on the inner wall of capillary was obtained.Abrasive flow machining technology is an effective meth-od for solving stainless steel capillary inner surface polishing problems.关键词
不锈钢毛细管/抛光/光整加工/磨料流加工/流动分析Key words
stainless steel capillary/polishing/finishing processing/AFM/flow analysis分类
机械制造引用本文复制引用
屈帅华,程建明,宋桂珍,贾银行,刘慧..不锈钢毛细管的磨料流加工特性研究[J].太原理工大学学报,2017,48(6):996-999,4.基金项目
山西省自然科学基金资助项目(2013011024-1) （2013011024-1）
企业委托基金资助项目(153060205-J) （153060205-J）
