STUDY ON TOOL WEAR MONITORING METHOD FOR HIGH SPEED MACHINING

高速加工刀具磨损监测方法研究

• 批准号: 07650130
• 负责人: MORITA Noboru
• 金额: $ 1.6万
• 依托单位: CHIBA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650130/
• 关键词: High speed machining; Tool wear; Endmilling; Cutting force sensor; Hard steel; 切削力動力計

This paper describes a newly developed cutting force measuring system with high response speed and fine resolution. It can monitor cutting process as well as tool wear during high speed emdmiling of hard steel materials. The system enables to precisely determine an transient cutting force action which is generated by each cutting edge of endmill tool rotated at a speed of 40,000 rpm.It is found that the cutting force and its waveform in high speed milling are affected quite sensitively by the cutting parameters and tool wearing process. The cutting force are proportionally increased with a cutting speed and cutting length. When the cutting speed surpasses a certain speed, the cutting edges rapidly wear out, also the increasing rate of cutting force changes quickly. When the helix angle is 45 deg., the cutting force and the flank wear of each cutting edge is generated smoller than those for the angle of 15 deg.and 30deg..

本文介绍了一种新研制的高响应速度、高分辨率切削力测量系统。它可以监测切削过程以及刀具磨损在高速铣削硬钢材料。该系统能够精确地测定立铣刀在40，000rpm转速下各切削刃产生的瞬时切削力作用，发现高速铣削时切削力及其波形受切削参数和刀具磨损过程的影响相当敏感。切削力随着切削速度和切削长度成比例地增加。当切削速度超过一定速度时，切削刃迅速磨损，切削力的增长率变化很快。当螺旋角为45 °时，每个切削刃的切削力和后刀面磨损比15 °和30 °角的切削力和后刀面磨损更小。