Wear Behaviors of Ceramic and Carbide Tools during Turning Martensitic Stainless Steel

陶瓷及硬質合金刀具車削馬氏體不銹鋼的磨損行為研究

王瑉(Min Wang) ； 王麗麗(Li-Li Wang) ； 艾興(Xing Ai) ； 趙軍(Jun Zhao)

《中國機械工程學刊》 38卷1期 (2017/02) Pp. 63-72

摘要

In this paper, we selected nine tools included Al_2O_3/Ti (C, N) ceramic tool prepared by us, other five ceramic tools and three carbide tools. The cutting characteristics of continuous turning 1Cr13 martensitic stainless steel of nine tools were studied, and the cutting performance of them and 1Cr13 workpiece surface roughness were analyzed in cutting speeds vc=100m/min and vc=260m/min. SEM and EDS analysis of these tools were performed after cutting, and the breakage and wear mechanisms was researched. Ceramic tools have better high temperature performance, and Al_2O_3 based ceramic tools more suitable for cutting stainless steel, carbide tools are affected by temperature significantly, and are not suitable for cutting martensitic stainless steel in high speeds.

關鍵字

Cutting Tools ； Martensitic stainless steel ； Cutting performance ； Wear mechanism

並列摘要

本文選取9種刀具進行了1Cr13馬氏體不銹鋼的連續車削加工實驗，其中包括自行製備的Al_2O_3/Ti (C, N)陶瓷刀具，其他5種陶瓷刀具及3種硬質合金刀具。分析了這9種刀具在切削速度vc=100m/min及vc=260m/min時連續車削1Cr13馬氏體不銹鋼的性能，測量了工件加工後的表面粗糙度。通過SEM及EDS結果，分析了這9種刀具切削後的磨損破損機理，發現陶瓷刀具具有較好的高溫性能，Al_2O_3基陶瓷刀具更適合於加工不銹鋼；硬質合金刀具的性能受切削溫度影響較大，不適合高速切削不銹鋼。