鋸齒形切屑的形成會導(dǎo)致機床振動,使刀具的切削性能下降,降低工件的加工質(zhì)量,因此需要對其形成機理進(jìn)行分析,合理優(yōu)化切削參數(shù),減少鋸齒形切屑的形成機率。本文利用ABAQUS軟件對鈦合金的加工過程進(jìn)行仿真分析,模擬鋸齒形切屑的形成機理,并在不同切削條件下進(jìn)行仿真和實驗研究,討論切削參數(shù)對切屑鋸齒化程度的影響。結(jié)果表明,隨著切削速度和進(jìn)給量的增加,切屑的鋸齒化程度逐漸增大,隨著刀具前角的增大,切屑的鋸齒化程度逐漸減小。研究結(jié)果對提高工件加工質(zhì)量以及設(shè)計工藝參數(shù)有一定指導(dǎo)作用。

【文章頁數(shù)】：6 頁

【文章目錄】：
1 Introduction
2 Forming mechanism and geometric characterization of serrated chip
    2.1 Mechanism of serrated chip formation
    2.2 Geometric characterization of chip morphology
        2.2.1 Chip thickness compression ratio
        2.2.2 Degree of serration
3 Establishment and analysis of finite element model
    3.1 Simulation model
    3.2 Establish of the constitutive model
    3.3 Analysis of simulation results
4 Experimental tests
    4.1 Influence of cutting speed on serrated degree
    4.2 Influence of feed rate on serrated degree
    4.3 Influence of tool rake angle on serrated degree
5 Conclusions



本文編號：3976630