CAJ | 학술논문

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。
위료해비정합금적절삭궤리，대대괴비정합금Zr41．2Ti13．8Cu12．5Ni10．0Be22．5진행료불동절삭심도적절삭실험，연후용소묘전경、X광연사의화측력계통대절설형태화절삭력진행관찰화측량。실험결과표명：Zr기비정합금재수랍적시후，비전취성재료유경호적소성표현，기절설형태독특차구유소성전절대특정；주절삭력Fz수절삭심도적증가이증장，단Fx화Fy칙궤호몰유변화。
In order to understand cutting mechanism of amorphous al oy,chip formation and cut-ting force of Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 bulk metal ic 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 Fz gets increased with the increase of cutting depth,howev-er the values of Fx and Fy are almost constant at the same time.