Original scientific paper

Investigation of the influence of hybrid layers on the life time of hot forging dies

S. Legutko ; Poznan University of Technology, Institute of Mechanical Technology, Poznan, Poland
A. Meller ; Poznan University of Technology, Institute of Mechanical Technology, Poznan, Poland
M. Gajek ; Opole University of Technology, Department of Technology and Work Environment Engineering, Opole, Poland

Abstract

The paper deals with the issues related in the process of drop forging with special attention paid to the durability of forging tools. It presents the results of industrial investigation of the influence of hybrid layers on hot forging dies. The effectiveness of hybrid layers type nitrided layer/PVD coating applied for extending the life of forging tools whose working surfaces are exposed to such complex exploitation conditions as, among others, cyclically varying high thermal and mechanical loads, as well as intensive abrasion at raised temperature. The examination has been performed on a set of forging tools made of Unimax steel and intended for forging steel rings of gear box synchronizer in the factory FAS in Swarzedz (Poland).

Keywords

forging; tool life; forging dies; hybrid (nitrid) layers

Hrčak ID:

92533

URI

https://hrcak.srce.hr/92533

Publication date:

1.4.2013.

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