Characterization and life prediction of single-pass honing tool for fuel injection nozzle  

作　　者：Changyong YANG Hao SU Shaowu GAO Qingfeng AI Yucan FU Wenfeng DING Jiuhua XU 

机构地区：[1]College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China [2]Kompetenzzentrum für Spanende Fertigung,Furtwangen University,Tuttlingen 78532,Germany

出　　处：《Chinese Journal of Aeronautics》2021年第4期225-240,共16页中国航空学报（英文版）

基　　金：the National Science and Technology Major Project of China(2017-Ⅶ-0015-0111)。

摘　　要：Single-pass honing is an important machining method for finish machining of holes,which can meet the requirement for high efficiency and consistency of holes.Characterization and life prediction of single-pass honing tool are necessary to improve the machining accuracy of holes honed,especially dimension accuracy.Single-pass honing tool is a single layer abrasive tool with fixed dimension,which still remains problematic for characterization and life prediction.For fuel injection nozzles with bore diameter under 1 mm,the stiffness of the single-pass honing tool is poor.This article presents a novel analytical model that predicts life of the tool with poor stiffness.Firstly,according to the bore diameter and dimension tolerance,the single-pass honing tool is designed and manufactured.Based on the prepared single-pass honing tool,the measurement and characterization methods are established.Furthermore,the tool wear tests are carried out,and the tool contour evolution model is established to predict the tool life.

关 键 词：Fuel injection nozzle Life prediction Single-pass honing tool Tool contour evolution Tool stiffness 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]