Hard machining performance of PVD AlCrN coated Al2O3/TiCN ceramic inserts as a function of thin film thickness

被引：39
作者：
Kumar, Ch Sateesh [1 ]
Patel, Saroj Kumar [1 ]
机构：
[1] Natl Inst Technol Rourkela, Dept Mech Engn, Rourkela 769008, Odisha, India
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 16期
关键词：
Hard turning; Mixed ceramic inserts; AICrN coating; FEM; FINITE-ELEMENT-ANALYSIS; TOOL WEAR; MECHANICAL-PROPERTIES; COATING THICKNESS; ALLOY-STEEL; CARBIDE; GEOMETRY; SIMULATION; FRICTION; STRESS;
D O I：
10.1016/j.ceramint.2017.07.030
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present work, AlCrN coating was deposited on Al2O3/TiCN ceramic inserts with varying thin film thickness using physical vapor deposition (PVD) technique. The thickness, surface morphology, chemical composition, hardness and adhesion strength of the coating to the substrate were characterized by field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), micro-indentations and scratch tests respectively. The machining performance of uncoated and coated tools was investigated in hard turning of AISI 52100 steel (62 HRC) under dry environment. The cutting behavior was analyzed in terms of machining forces, tool temperature, wear, friction and chip morphology. Further, a 3D finite element model with hybrid friction criterion has been adopted to support the experimental findings. The results revealed that coating/substrate adhesion and edge radius were the deciding criteria for the machining performance of coated tools with 3 gm coating thickness tool exhibiting best turning performance on Al2O3/TiCN mixed ceramic insert.
引用
收藏
页码：13314 / 13329
页数：16
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