Adapted surface properties of hot forging tools using plasma technology for an effective wear reduction

authored by: H. Paschke, T. Yilkiran, L. Lippold, K. Brunotte, M. Weber, G. Braeuer, B. A. Behrens
Abstract: Interacting high mechanical, tribological, chemical and thermal cyclic load components of hot forging processes are process-related and acting geometrically dependent. To enhance the cost effectiveness, there is a big interest in reducing the occurring wear which is a result of these complex load regimes during processing. The presented work identifies the different main wear mechanisms in forging dies and the subsequent abstraction in the configuration of different model tests. Thus, an accentuation of the predominant load component was possible in order to develop adapted plasma nitriding processes partially combined with PVD or PEVD hard coatings to reduce effectively the specific wear like plastic deformation, cracking and abrasive or adhesive wear respectively. The change of the primary surface shape of forging tools was found to be essential for the development of the wear progress. This was described by using the Abbott-Firestone graph finding the core roughness S_k to be a suitable describing parameter. Thus, conditioning methods like abrasive finishing or severe shot peening represent tool enhancements for a further wear reduction. The definition of distinct tool topographies in addition with a stabilization of the initial state of the tool surface achieved with hard coatings and/or additional diffusion treatment is a very promising approach to enhance the wear resistance of forming tools.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Fraunhofer-Institute for Surface Engineering and Thin Films (IST)
Type: Article
Journal: WEAR
Volume: 330-331
Pages: 429-438
No. of pages: 10
ISSN: 0043-1648
Publication date: 06.06.2015
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Condensed Matter Physics, Mechanics of Materials, Surfaces and Interfaces, Surfaces, Coatings and Films, Materials Chemistry
Electronic version(s): https://doi.org/10.1016/j.wear.2015.02.009 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{9f0b81dce621431fb6a917bd32ce78c1,
title = "Adapted surface properties of hot forging tools using plasma technology for an effective wear reduction",
abstract = "Interacting high mechanical, tribological, chemical and thermal cyclic load components of hot forging processes are process-related and acting geometrically dependent. To enhance the cost effectiveness, there is a big interest in reducing the occurring wear which is a result of these complex load regimes during processing. The presented work identifies the different main wear mechanisms in forging dies and the subsequent abstraction in the configuration of different model tests. Thus, an accentuation of the predominant load component was possible in order to develop adapted plasma nitriding processes partially combined with PVD or PEVD hard coatings to reduce effectively the specific wear like plastic deformation, cracking and abrasive or adhesive wear respectively. The change of the primary surface shape of forging tools was found to be essential for the development of the wear progress. This was described by using the Abbott-Firestone graph finding the core roughness Sk to be a suitable describing parameter. Thus, conditioning methods like abrasive finishing or severe shot peening represent tool enhancements for a further wear reduction. The definition of distinct tool topographies in addition with a stabilization of the initial state of the tool surface achieved with hard coatings and/or additional diffusion treatment is a very promising approach to enhance the wear resistance of forming tools.",
keywords = "Die wear, Forging, Hard coatings, Partial treatment, Plasma nitriding, Topography",
author = "H. Paschke and T. Yilkiran and L. Lippold and K. Brunotte and M. Weber and G. Braeuer and Behrens, {B. A.}",
note = "Funding Information: The presented investigations are results of the completed and current projects embedded into the program “Industrielle Gemeinschaftsfoerderung (IGF)” funded by the Federal Ministry for Economic Affairs and Energy via the AiF. We are thankful for the provided assistance. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.",
year = "2015",
month = jun,
day = "6",
doi = "10.1016/j.wear.2015.02.009",
language = "English",
volume = "330-331",
pages = "429--438",
journal = "WEAR",
issn = "0043-1648",
publisher = "Elsevier BV",
}