铣削高温合金GH3039刀具寿命预测及磨损机理
Prediction of milling high temperature alloy GH3039 tool life and wear mechanism
于凤云 1王菁 2熊涛 2杨伟2
作者信息
- 1. 黑龙江科技大学 研究生学院,哈尔滨 150022
- 2. 黑龙江科技大学 机械工程学院,哈尔滨 150022
- 折叠
摘要
为揭示高温合金GH3039 铣削参数对刀具寿命的影响规律,采用正交试验法对其进行铣削试验,运用多元回归法建立刀具寿命预测模型,分析铣削参数对刀具寿命的影响规律,通过观测铣刀后刀面的磨损情况,探究不同主轴转速下铣刀的磨损机理.结果表明:主轴转速对刀具寿命的影响程度最大,最小为轴向切深;当主轴转速为 750 r/min时,铣刀磨损区域主要以黏结磨损和磨粒磨损为主;当铣削速度为 950 r/min 时,氧化磨损与扩散磨损开始增强;当铣削速度为1 180 r/min时,磨粒磨损与黏结磨损开始减弱甚至消失,氧化磨损与扩散磨损占据主导地位.
Abstract
This paper seeks to investigate the influence of milling parameters on tool life of the high-temperature alloy GH3039.The study consits of performing milling experiments on alloy GH3039 using orthogonal experimental methods;establishing a predictive model for tool life with the multivariate linear regression method;analyzing the impact of milling parameters on tool life;and observing the wear condi-tions of the milling cutter flank to study the wear mechanism under different spindle speeds.The findings indicate that the spindle speed has the greatest impact on tool life,while axial cutting depth has the least impact.At a spindle speed of 750 r/min,the predominant wear areas of the milling cutter mainly pres-ents adhesive and abrasive wear.At a milling speed of 950 r/min,oxidative and diffusive wear tenden-cies begin to expand.As the milling speed reaches 1 180 r/min,the abrasive wear and adhesive wear di-minish or vanish,and the oxidative wear and diffusive wear present mostly.
关键词
高温合金GH3039/铣刀/刀具寿命/刀具磨损/磨损机理Key words
high temperature alloy GH3039/milling cutter/tool life/tool wear/wear mechanism引用本文复制引用
基金项目
黑龙江省省属高等学校基本科研业务费项目(2018-KYYWF-1167)
出版年
2024
国家科技期刊平台
NSTL
万方数据