Properties of TiN–Al₂O₃–TiCN–TiN, TiAlN, and DLC‐coated Ti(C,N)‐based cermets and their wear behaviors during dry cutting of 7075 aluminum alloys

Abstract

Ti(C,N)-based cermets have been used as cutting tools due to their excellent hardness, phase stability, and wear resistance. These properties make the cermets possible for high-temperature machining. 1 In addition, Ti(C,N)-based cermets show higher hardness, lower friction coefficient compared with the cemented carbide, superior toughness than the ceramics, and more cost-effective than the PCBN. Ti(C,N)-cermet cutting tools are now mainly used for semifinishing and finishing and high-speed cutting of stainless steels or carbon steels.Currently, many efforts have been made to improve the properties of materials by means of deposition of coatings. 2 Deposition of a hard and wear-resistant film on the surface of the cutting tools has been proven to be an effective way to enhance the cutting performance. Today, physical vapor deposition (PVD) and chemical vapor deposition (CVD)

Microstructure, interfacial characteristics, and wear performances of Cu–Fe–SiC cermet composites

“…Both abrasives and adhesives suffer from continuous wear during grinding, so a balance should be struck between the abrasives and adhesives. The larger the surface area of the abrasive tip is, the more grinding heat and cutting force will be applied 36–38 . The local high temperature in the contact area will lead to the softening of rail materials, and the smaller debris will also be heated into sphericity.…”

“…The larger the surface area of the abrasive tip is, the more grinding heat and cutting force will be applied. [36][37][38] The local high temperature in the contact area will lead to the softening of rail materials, and the smaller debris will also be heated into sphericity. As a result of the ploughing of the blunt abrasive, the rail surface is grooved, the surface roughness is higher, the coefficient of friction is lower, and the matrix adhesive remains on the rail surface.…”

Modeling of Surface Roughness and Tool Wear when Finishing Milling Process of the Circular Bevel Gear

“…This type of cutting insert has good thermal stability, high mechanical stability, high impact resistance, and suitable for finish cutting conditions. This material is used commonly to make cutting tools in machining in general and in gear machining in particular [36]. Each experiment used sixteen new cutting inserts to attach to cutting head.…”

Protecting Light Metal Alloys Using a Sustainable Plasma Electrolytic Oxidation Process

“…The authors report that the incorporation of AlO X N Y into the protective coatings enhanced the bio-corrosion resistance of Mg in simulated physiological environments . Liu et al reported the enhanced tribological behavior of Al7075 when coated with TiAlN via PVD . Noder et al published their findings reporting the improved tribological behavior of PVD-coated Al alloys machined for automotive structural components .…”

“…2 Liu et al reported the enhanced tribological behavior of Al7075 when coated with TiAlN via PVD. 3 Noder et al published their findings reporting the improved tribological behavior of PVD-coated Al alloys machined for automotive structural components. 4 Ishizaki et al reported the use of CVD to protect Mg alloys (AZ321) from corrosion by inducing superhydrophobic characteristics to the surface.…”