Dataset on identification and correlation of secondary carbides on microstructure, wear mechanism, and tool performance for different cermet grades during high-speed dry finish turning of AISI 304 stainless steel

The aim of this study is to utilize reverse engineering approach for the identification of the elements and phases available on the commercial CERMET inserts with the help of characterization techniques such as Scanning Electron Microscope (SEM), Energy-dispersive X-ray spectroscopy (EDS), and X-Ray Deposition (XRD). Four commercial CERMET inserts were investigated in this research work and the effect of the composition and phases are related to it’s tool wear mechanism and performance. Each CERMET insert is used to perform a turning process on a CNC lathe for machining stainless steel (SS) under dry condition at a fix cutting length interval. Once it completes machining for a fix cutting length, the CERMET insert is taken out to investigate its wear mechanism with the help of SEM, EDS, XRD and using focus-variation microscope (Alicona). A correlation study is performed to relate progressive tool wear mechanism with elements and their relevant phases of various carbides. The approach of corelating wear property with the phase content will contribute for understanding of the wear mechanism under such extreme machining conditions. It will serve as a reference for the improvement of the performance of these CERMET inserts for such harsh machining condition by development of protective coatings for these CERMET inserts based on the identification of the composition and phases that improves tool life and reduces wear.

本研究旨在借助扫描电子显微镜（Scanning Electron Microscope, SEM）、能量色散X射线能谱（Energy-dispersive X-ray spectroscopy, EDS）以及X射线沉积（X-Ray Deposition, XRD）等表征手段，采用逆向工程方法对商用金属陶瓷（CERMET）刀片所含元素与物相进行鉴定。本研究共对4片商用金属陶瓷刀片开展试验，并探究其成分与物相对刀具磨损机制及切削性能的影响。每片金属陶瓷刀片均需在数控车床（CNC lathe）上开展干切削工况下的不锈钢（Stainless Steel, SS）车削加工，且切削长度区间固定。当完成固定切削长度的加工后，取出该金属陶瓷刀片，借助SEM、EDS、XRD以及共聚焦显微镜（Alicona）对其磨损机制进行表征分析。本研究开展相关性分析，将渐进式刀具磨损机制与各类碳化物的组成元素及其对应物相进行关联。通过将磨损特性与物相含量相关联的研究思路，有助于理解该极端切削工况下的刀具磨损机制。本研究可基于对提升刀具寿命、降低磨损的成分与物相的鉴定结果，开发金属陶瓷刀片的防护涂层，进而为改善此类苛刻切削工况下金属陶瓷刀片的切削性能提供参考依据。