The tool wear is an unavoidable phenomenon when using coated carbide tools during hard turning of hardened steels. This   work focuses on the prediction of tool wear using regression analysis and artificial neural network (ANN).The work piece taken into consideration is AISI4140 steel hardened to 47 HRC. The models are developed from the results of experiments, which are carried out based on De...

Hard turning has replaced conventional grinding in production processes recent years as an emerging technique. Nowadays, coated carbide tools are replacing expensive CBN inserts turning. Wear is a significant concern when with carbide; it immediately affects the acceptability of machined surface, which causes machine downtime and loss due to wastage parts. Online tool condition monitoring (TCM)...

Carrying out information about the microstructure and stress behaviour of ferromagnetic steels, Magnetic Barkhausen Noise (MBN) has been used as a basis for effective Non Destructive Testing methods, opening new areas in industrial applications. One of the factors that determines the quality and reliability of the MBN analysis is the way information is extracted from the signal. Commonly, simpl...

Corrosion is one of the major problems in the industry especially on machinery since it weakens the structure of the machinery part and causes the mechanical failure. This will stop the production and increase the maintenance cost. In this study, the corrosion behaviour of gas nitriding on a screw press machine shaft made from AISI 4140 steel was investigated. Pitting corrosion was identified a...

Abstract In many industries, indexable insert drills are used to cost effectively produce short holes. However, common problems such as chatter vibrations, premature tool wear and generation of long curly chips that cause poor chip evacuation make optimization the drilling process challenging time-consuming. Therefore, robust predictive models processes desirable support development towards imp...

An experimental study has been carried out to investigate and compare the cutting tool performances represented by insert wear, surface roughness forces of an uncoated carbide (H13A) three coated carbides GC2015 ( TiCN / Al2O3 TiN ), GC1015 (TiN) GC4215 ) during dry turning AISI4140 steel. Turning was 5 minutes on cylindrical specimens (80 mm diameter 400 length) along with a depth 0.5 mm, feed...