Innovative wear test methodologies for the simulation of in-service behaviour of tool steels
This project intends to contribute to the development of new testing methodologies to assess the wear behaviour of tool steels in the field of cold forming and deep drawing. Guidelines for laboratory activities are included in the report. A preliminary characterisation was performed on industrial process tools, revealing the surface damage typology of the steel tools. The results of this characterisation and the FEM process analyses were used as a basis to design a group of experiments carried out by a set of tribometers available to the research group. Two test procedures were selected and validated by a comparative analysis among the surface analyses results of the plant tools and those from the tested samples, the lab wear and the process wear data of the tools collected by the industrial project partner. Furthermore, a wear assessing model has been developed for flow and roll forming. The model can be used to evaluate the wear amount on a steel roll using as input variables the number of work pieces produced, the contact pressure and the sliding speed between the roll and the sheet. The model for the deep drawing, based on the image analysis technique, was not completely successful, in spite of dedicated efforts in terms of studies and the innovative approach of adopted tribological variables able to quantify steel galling. The study results are very interesting for their potential use in other industrial fields such as steel rolling.
Bibliographic Reference: EUR 23204 EN (2008), 143 pp. Euro: 20
Availability: Katalogue Number: KI-NA-23204-EN-S The paper version can be ordered online and the PDF version downloaded at: http://bookshop.europa.eu
ISBN: ISBN: 978-92-79-08195-8
Record Number: 201010066 / Last updated on: 2010-01-22
Original language: en
Available languages: en