内冷式高压冷却车刀切削性能的研究  

Study on the Cutting Performance of Internally Cooled High-Pressure Cooling Tool

作　　者：于叶强 刘润爱 郭文亮 YU Ye-qiang;LIU Run-ai;GUO Wen-liang(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Shanxi Taiyuan030024,China)

机构地区：[1]太原理工大学机械与运载工程学院,山西太原030024

出　　处：《机械设计与制造》2021年第4期126-128,132,共4页Machinery Design & Manufacture

摘　　要：研究中对关于切削温度和切屑折断方面新型内冷式高压冷却车刀的切削性能进行了仿真和实验分析。研究结果表明,在切削过程中喷射的高压冷却液可以最大限度地带走刀-屑-工件系统中的热量,使冷却更高效,还可以通过改变润滑摩擦条件和剪切角度(剪切性能)来改善切削状况,迫使切屑卷曲折断并强烈控制切屑的形成。最终在高压射流的热效应和机械效应的综合作用下,改善切削温度的同时得到较小弯曲半径的碎屑,从而增强了切削过程中的工艺稳定性和加工安全性。In the study,conducting a simulated analysis and an experimental analysis on cutting performance of new internally cooled high-pressure cooling tool based on the cutting temperature and chip breaking.The result of the study indicates that the injected high-pressure coolant can maximally carry off the heat from the tool-chip-workpiece system,making the cooling more efficient,it can also improve cutting condition through changing lubricated friction condition and shearing angle(shearing performance),forcing the chips to curl and severely controlling the formation of chip.Finally,improving the cutting temperature and obtaining smaller bending radius chip under the integrated impacts of thermal effect and mechanical effect of the high-pressure jet,thereby enhancing the process stability and safety during cutting process.

关 键 词：高压冷却 切削温度 断屑 304不锈钢 

分 类 号：TH16[机械工程—机械制造及自动化] TG712[金属学及工艺—刀具与模具]