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

Previous Issues

Advance Search
Year : From To Vol
Issue Discipline:
Author

Volume :34 Issue : 2 2007      Add To Cart                                                                    Download

On the effect of heat treatment on the forming properties of pre-deformed low carbon steel

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

Department of Mechanical Production Technology, College of Technological Studies, PAAET, P.O. Box 42325 Shuwaikh 70654, Kuwait, Tel: +965 2314846 Fax: +965 4832761.* Aalaskari@gmail.com, ** se.oraby@paaet.edu.kw

 

ABSTRACT

 

Strain hardening or cold work hardening usually accompanies most forming manufacturing processes as well as many other processes. This inevitable consequence, in a common functional sense, is undesirable from the design viewpoint. Therefore, attempts are always in progress to enhance the predeformed material in such a way to reduce this hardening effect. Annealing heat treatment is a familiar and effective technique that is frequently employed. In the current study, two annealing methods, used separately to investigate their effect on predeformed materials, are stress relief at 610 C° and process annealing at 710 C°.  Both techniques have enhanced the resulting hardening stress to different degrees, depending on the degree of deformation and the value of true strain. Stress relief annealing tends to have the best outcome at moderate deformation levels from 0.12 to 0.16 predeformation strain. However, little gain is obtained at higher deformation levels especially at moderate to high true strain values.  Process annealing is found to produce better qualitative and quantitative results than those obtained by stress relief annealing. Stress reduction has been achieved with process annealing within a wider domain of predeformation and true strains.

 

Keywords: forming; predeformation; process annealing; stress relief annealing.

Kuwait Journal of Science
Journal of Law

You are Visitor No.

55170

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