Investigations on Milling of HDS H-13 with Bi-layer Coated Tungsten Carbide Tool

This paper presents a new concept to develop a cutting tool for milling technologies. To enable milling for HDS H-13 material for heavy extrusion and forming tools and dies, a milling tool is a key factor. The tool is consisting of a Nano crystalline tungsten carbide base metal, and innovative coating system consisting of AlCrN - TiAlN Bi-layer. By using the said composition we study the wear behavior of end milling cutter while performing machining of HDS H13 material under wet machining condition. Here we study a technique to find wear behavior of an end milling cutter known as Nano-Indentation. The machining experiments involves of a tool which is Bi-layer coated made up of tungsten carbide, carried at various parameters such as cutting speed, feed and cut depth under wet conditions. Optimum parameters of the process can be found using taguchi method. It has been discovered from results that machined material's surface roughness is greatly contributed by the cutting tool type as a significant factor.