机电工程技术2025，Vol.54Issue(5)：29-33,51,6.DOI:10.3969/j.issn.1009-9492.2024.00193
难加工材料钻削刀具磨损特性研究
Study on Wear Characteristics of Drilling Tools for Difficult-to-machine Materials
摘要
Abstract
In order to reveal the wear changes in the drilling process of difficult-to-machine materials,so as to provide reference for the optimization design and practical application of cutting tools,the typical difficult-to-machine materials 1Cr18Ni9Ti and GH4169 are taken as the processed materials,four kinds of cutting tools with different cutting edges are drilled by internal cooling and external cooling respectively by single factor test method.After a certain distance,the wear values of the back face,front face and column edge of the tool are measured by using the super depth of field microscope,and the wear morphology is observed at the same time.The results show that,with the increase of machining distance,the tool wear intensifies,and the tool drilling process mainly goes through the severe wear stage and the normal slow wear stage.In the severe wear stage,the main failure forms are tool fracture and edge collapse,and in the normal wear stage,the main wear forms are abrasive wear and adhesive wear.At this stage,the tool should be replaced in time according to the wear condition to ensure the processing quality;for internal cooling and external cooling machining,the comprehensive wear value of the main cutting edge is the smallest when the concave amount of the main cutting edge is large;the convex cutting edge has high chip removal resistance,high cutting temperature,and is prone to bonding wear,which is not conducive to the working condition of external cold machining.关键词
1Cr18Ni9Ti/GH4169/切削参数/磨损/钻削/单因素试验Key words
1Cr18Ni9Ti/GH4169/cutting parameters/abrasion/drilling/single factor test分类
矿业与冶金引用本文复制引用
卞玲玲,李金乐,罗胜,周磊,刘凯,聂超,石运轩..难加工材料钻削刀具磨损特性研究[J].机电工程技术,2025,54(5):29-33,51,6.基金项目
国家重点研发计划青年科学家项目(2022YFB3708800) （2022YFB3708800）
