摘要
为了解非晶合金的切削机理,对大块非晶合金Zr41.2Ti13.8Cu12.5Ni10.0Be22.5进行了不同切削深度的切削实验,然后用扫描电镜、X光衍射仪和测力系统对切屑形态和切削力进行观察和测量。实验结果表明:Zr基非晶合金在受拉的时候,比全脆性材料有更好的塑性表现,其切屑形态独特且具有塑性剪切带特征;主切削力Fz随切削深度的增加而增长,但Fx和Fy则几乎没有变化。
In order to understand cutting mechanism of amorphous alloy, chip formation and cutting force of Zr41.2 Ti13.8 Cu12.5 Ni10.0 Be22.5 bulk metallic were investigated during machining process with different cutting depth by using SEM X-ray diffraction and cutting force measurement system. It is interesting that very good plasticity occurs during machining Zr-based BMG as compared to complete brittleness in tension. The chip morphology is unique and shows presence of plastic shear bands. The main cutting force F, gets increased with the increase of cutting depth, however the values of F, and F. are almost constant at the same time.
出处
《机床与液压》
北大核心
2014年第12期50-53,共4页
Machine Tool & Hydraulics
基金
Project supported by National Natural Science Foundation of China(No.51375101)
关键词
非晶合金
切削加工
切屑形态
切削力
Metallic glass, Cutting, Chip formation, Cutting force
