The use of multilayer coated carbide tool in hard turning has several advantages over grinding process such as; reduction of processing costs, increased productivity, short cycle time, compatible surface roughness and less enviornment problems without the use of cutting fluid. In the present study, an attempt has been made to evaluate the performance of multilayer coated carbide inserts during ...

There exists some inconsistence regarding the true residual stress profiles by hard turning and grinding AISI 52100 steel (62 HRc). This study aims to clarify the pressing issues for five surface types: hard turned fresh, hard turned with a white layer, ground fresh, ground with a white layer, and as-heat-treated. The key findings are: (i) hard turned fresh surfaces produce surface compressive ...

This paper presents an analytical approach for modeling of turn-milling which is a promising cutting process combining two conventional machining operations; turning and milling. This relatively new technology could be an alternative to turning for improved productivity in many applications but especially in cases involving hard-to-machine material or large work diameter. Intermittent nature of...

Significant improvements have been made in the performance of CNC machine tools due to the active research over the last several decades. However, the research and understanding on chucking accuracy have not been adequate. Nor has any systematic methods been reported for on chucking accuracy, especially in terms of the repeatability and the accuracy in the position of a chucked workpiece. The n...

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)...