文献类型：期刊文献

中文题名：1Cr18Ni9Ti不锈钢锯齿切屑失稳试验研究

英文题名：1Cr18Ni9Ti Stainless Steel Serrated Chips Instability Experimental Research

作者：徐友钱[1];何云[1];邹章帝[1];祁成东[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2015

期号：2

起止页码：4

中文期刊名：组合机床与自动化加工技术

外文期刊名：Modular Machine Tool & Automatic Manufacturing Technique

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：国家重大科技专项"高档数控机床与基础制造装备"(2012ZX04003041)

语种：中文

中文关键词：1Cr18Ni9Ti不锈钢;锯齿形切屑;热塑性失稳;切削变形参数

外文关键词：1Cr18Ni9Tistainless steel;serrated chips;thermal plastic instability;chip deformation parameters

摘要：1Cr18Ni9Ti不锈钢切削时切削力大和温度高,切屑容易产生剪切失稳,产生锯齿形切屑。通过制作不同切削速度下的切屑试样,测量切屑锯齿化参数和切屑变形区不同部位的显微硬度,比较不同切削速度下切屑变形程度来研究1Cr18Ni9Ti不锈钢切屑锯齿化失稳机理。得到切屑变形集中在剪切滑移带上,而且越靠近节段之间,切屑的变形程度越大。然后通过改变进给量和刀具前角,分析影响1Cr18Ni9Ti不锈钢切屑锯齿化的影响因素,为改善1Cr18Ni9Ti不锈钢切削提供理论参考。
Cutting 1Cr18Ni9Tistainless steel has high cutting force and high temperature. chip prone to shear instability, resulting in serrated chip. By making the chip sample of different cutting speeds,measuring the chip jagged parameters and microhardness in different deformation zonesoft thechip,comparingchip deforma-tion under different cutting speeds toresearch 1Cr18Ni9Ti stainless steel chip jagged instability mechanism. Gain the chip deformation concentrated in shear slip belt, and the closer between segment,the greater the de-gree of deformation of the chip. Then by changing the feed rate and rake angle, analyze factors which may influence 1Cr18Ni9Ti stainless steel chip jagged for improvement to provide a theoretical basis for cutting stainless steel 1Cr18Ni9Ti.