摘要
在切削加工304不锈钢的过程中会产生大量冗长切屑,损坏工件已加工表面,加快刀具磨损破损,有时可能威胁操作人员的安全,因此断屑已成为切削加工的重要一环。高压内冷却切削加工是一种从前刀面喷出高压切削液射流来冲断切屑的加工技术,通过研究高压内冷却车刀的断屑机理及试验比较来验证射流断屑效果。试验结果表明,在高压内冷却切削加工过程中,由于受到高压冷却液射流的冲击,切屑卷曲半径减小,应变增大,易于折断,极大地改善了断屑性能。
304 stainless steel often produces a lot of interminable chips in the cutting process,this chip damages the machined surface of the workpiece,making the tool wear and tear faster.Sometimes it may threaten the safety of operators,thus chip breaking becomes an important part of machining.High-pressure internal-cooling cutting machining is a machining technique that ejects high-pressure cutting fluid jet from the rake face to break the chips.The mechanism of chip breaking and experimental compare of high pressure internal cooling turning tool are studied to verify the effect of chip breaking.The experimental results show that the chips are impacted by the high pressure coolant jet in the internal cooling cutting process,which makes the curl radius of the chips decrease,the strain increase,the chips are easy to break and the chip breaking performance is greatly improved.
作者
许世超
刘润爱
郭文亮
Xu Shichao;Liu Runai;Guo Wenliang(College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《工具技术》
2019年第6期65-67,共3页
Tool Engineering
基金
山西省重点研发计划项目(201603D421016)
关键词
304不锈钢
断屑
高压内冷却车刀
卷曲半径
304 stainless steel
chip breaking
high pressure internal cooling turning tool
the curl radius
