Kuwait-University-Journal-of-Law-header
Search
Kuwait Journal of Science

Previous Issues

Advance Search
Year : From To Vol
Issue Discipline:
Author

Volume :35 Issue : 1 2008      Add To Cart                                                                    Download

On the variability of tool wear and life at disparate operating parameters

Auther : S.E. ORABY * AND A.M. ALASKARI**

*Dept. of Production & Mechanical Design, Faculty of Engineering, Suez Canal University, Egypt [Currently: Dept of Mechanical Production Technology, College of Technological Studies, PAAET, P.O. Box 42325 Shuwaikh 70654, KUWAIT]. Email: soraby@paaet.edu.kw, Mobile: +9659549019 and **Dept of Mechanical Production Technology, College of Technological Studies, PAAET, P.O. Box 42325 Shuwaikh 70654, KUWAIT.

 

ABSTRACT

 

The stochastic nature of tool life using conventional discrete-wear data from experimental tests usually exists due to many individual and interacting parameters. It is a common practice in batch production to continually use the same tool to machine different parts, using disparate machining parameters. In such an environment, the optimal points at which tools have to be changed, while achieving minimum production cost and maximum production rate within the surface roughness specifications, have not been adequately studied.

In the current study, two relevant aspects are investigated using coated and uncoated inserts in turning operations: (i) the accuracy of using machinability information, from fixed parameters testing procedures, when variable parameters situations are emerged, and (ii) the credibility of tool life machinability data from prior discrete testing procedures in a non-stop machining.

A novel technique is proposed and verified to normalize the conventional fixed parameters machinability data to suit the cases when parameters have to be changed for the same tool. Also, an experimental investigation has been established to evaluate the error in the tool life assessment when machinability from discrete testing procedures is employed in uninterrupted practical machining.

 

Keywords: Machinability; tool life; tool wear; wear variability.

Kuwait Journal of Science
Journal of Law

You are Visitor No.

55642

Journal of Law
Journal of Law
Tell your friendsJournal of Law
Journal of Law

Last Updated

Jun 19, 2012

Journal of Law
Journal of Law
Journal of Law

Please enter your email Here to receive our news

Journal of Law