• Raveendra GV
• Peetla Karthik Sai
• Naveen Kumar N
• Sunil G
• N Naga Suresh Babu

Cutting tools are very important in machining process. The productivity and quality of the process directly depends on the performance of the cutting tool. Tool coating can improve the machinability performance of difficult to cut materials such as titanium alloys. In the current work high speed turning of EN-24 alloy was carried out to determinate the performance of various coated cutting tools. Tungsten carbide inserts were coated with AlCrN and TiAlN which is deposited by PVD coating. This study has been undertaken to investigate the machinability studies on Physical vapour deposition (PVD) coated tungsten carbide tools. The tools are PVD coated with AlCrN and TiAlN coatings. These tools are used to machining EN-24 which an alloy is obtained by through hardening of a steel alloy. Different parameters are varied such as cutting speed, feed rate and depth of cut in order to optimize process parameters. The main aim is to increase the material removal rate and decreases cutting forces. The experiments were conducted by using Taguchi method with L9 orthogonal array. In this experiment three parameters namely cutting speed, feed rate and depth of cut were considered at three levels. The cutting forces are taken in x, y,z directions and material removal rate is calculated for each trail.Mini tab 18 was the software used to analyze the results. There was improvement in metal removal rate and decrease in cutting force of the coated tools when compared to uncoated tools.

Machining, PVD Coating, TiAlN coating, AlCrn coating, Carbide tool, Tungsten Carbide Tool

"Machinability Studies on PVD Coated Carbide Tools", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.267-275, May-2019, Available :http://www.jetir.org/papers/JETIR1905L37.pdf

"Machinability Studies on PVD Coated Carbide Tools", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp267-275, May-2019, Available at : http://www.jetir.org/papers/JETIR1905L37.pdf