Influence of the fabrication method on the wear resistance of hot forging dies

authored by: Bernd Arno Behrens, Timur Yilkiran
Abstract: Tools used for hot forging are subject to simultaneously acting process-related high mechanical, tribological, chemical and thermal cyclic loads. In comparison to other manufacturing methods, the resulting load spectrum leads to a failure of the form-giving tool components after a short tool life. Wear is the main reason for die failure in hot forging processes, accounting for 70 % of all causes. Other kinds of failures are thermal and mechanical cracks as well as plastic deformation (a result of the loss of hardness due to the high thermal charge). In order to reduce wear, several kinds of wear reducing methods are subject of industrial applications as well as research works. For example, nitriding and optional thin hard coating or overlay welding are effective methods to increase the wear resistance of hot forging dies. Beside the process related stresses during the service, manufacturing of forging tools itself initializes microstructural changes in their subsurface zones. During fabrication, the general influence of the fabrication method on the tool lifetime has not been considered so far. The implementation of the knowledge of this influence into the fabrication process could lead to an increased productivity of hot forging processes without using expensive and complex wear reducing methods.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Article
Journal: Production Engineering
Volume: 6
Pages: 267-276
No. of pages: 10
ISSN: 0944-6524
Publication date: 10.03.2012
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Mechanical Engineering, Industrial and Manufacturing Engineering
Electronic version(s): https://doi.org/10.1007/s11740-012-0373-y (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{a7ac9e4da05f4aebbd58102b4c9d5139,
title = "Influence of the fabrication method on the wear resistance of hot forging dies",
abstract = "Tools used for hot forging are subject to simultaneously acting process-related high mechanical, tribological, chemical and thermal cyclic loads. In comparison to other manufacturing methods, the resulting load spectrum leads to a failure of the form-giving tool components after a short tool life. Wear is the main reason for die failure in hot forging processes, accounting for 70 % of all causes. Other kinds of failures are thermal and mechanical cracks as well as plastic deformation (a result of the loss of hardness due to the high thermal charge). In order to reduce wear, several kinds of wear reducing methods are subject of industrial applications as well as research works. For example, nitriding and optional thin hard coating or overlay welding are effective methods to increase the wear resistance of hot forging dies. Beside the process related stresses during the service, manufacturing of forging tools itself initializes microstructural changes in their subsurface zones. During fabrication, the general influence of the fabrication method on the tool lifetime has not been considered so far. The implementation of the knowledge of this influence into the fabrication process could lead to an increased productivity of hot forging processes without using expensive and complex wear reducing methods.",
keywords = "Cracks, EDM, Hot forging, Hot working steel, HSC, Martensite, Wear resistance",
author = "Behrens, {Bernd Arno} and Timur Yilkiran",
note = "Funding information: Acknowledgments The presented investigations were carried out within the German Research Foundation (DFG) project No. Be-1691-23-1 {\textquoteleft}{\textquoteleft}Untersuchung der Zusammenh{\"a}nge zwischen Gesenkherstell-verfahren und den mikrostrukturellen Vorg{\"a}ngen in der Werkzeug-randschicht von Schmiedegesenken beim Schmieden{\textquoteright}{\textquoteright}. We are thankful for the assistance provided. The general influence of the fabrication method on the tool life in forging dies was examined at the Institute of Metal Forming and Metal-Forming Machines (IFUM). The research project was founded by the German Research Foundation (DFG). It could be demonstrated that microstructural changes in the edge layers influence the tool life.",
year = "2012",
month = mar,
day = "10",
doi = "10.1007/s11740-012-0373-y",
language = "English",
volume = "6",
pages = "267--276",
journal = "Production Engineering",
issn = "0944-6524",
publisher = "Springer Verlag",
number = "3",
}