A Nitriding Technique for Improving Die Life.

TILAKAWARDENA, D and TITTAGALA, Sunil (1996). A Nitriding Technique for Improving Die Life. In: Proceedings of symposium on industry related research 1995. Moratuwa, Sri Lanka, Engineering Research Unit, University of Moratuwa, Sri Lanka, 69-78.

[img] PDF
A Nitriding Technique for Improving Die Life.pdf - Published Version
Restricted to Repository staff only
All rights reserved.

Download (836kB) | Contact the author


The absence of proper understanding and facilities for heat treatment, specifically surface treatment techniques has retarded the development of tooi and die industry in Sri Lanka. Thus there has been a growing interest among the local tool manufacturers and users for new heat treatment techniques. It has been shown that the surface properties for Dies and Moulds can be enhanced by nitriding and this technique was first used in early 1920’s. Since then much development has taken place and now the technique can be applied to a greater variety' of steels than it was originally thought possible. However nitriding is still in its infancy as far as the local industry is concerned. Nitriding is basically the introduction of atomic nitrogen from a surrounding medium into the surface of steel by diffusion. In contrast to most heat treatment procedures nitriding changes both the chemical composition and the structure of the layer thereby enabling the properties to vary in a wider range. Extreme hardness, retention of hardness at elevated temperatures, improved fatigue strength and corrosion resistance are some of the properties imparted by nitriding. This paper describes the work carried out towards developing a suitable nitriding technique adaptable by the local medium and small scale industries with due regards to economy and safety aspects. It is expected to carry out industrial trials to assess the efficiency of the proposed setup.

Item Type: Book Section
Page Range: 69-78
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 15 Feb 2023 16:51
Last Modified: 11 Oct 2023 17:16
URI: https://shura.shu.ac.uk/id/eprint/29403

Actions (login required)

View Item View Item


Downloads per month over past year

View more statistics