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Open AccessArticle

Wear of Shaped Surfaces of PVD Coated Dies for Clinching

1
Institute of Materials Research, Slovak Academy of Sciences, Watsonova 1935/47, 040 01 Košice, Slovakia
2
Department of Computer Support of Technology, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovakia
3
Department of Mechanical Technology and Materials, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovakia
*
Author to whom correspondence should be addressed.
Metals 2017, 7(11), 515; https://doi.org/10.3390/met7110515
Received: 10 October 2017 / Revised: 8 November 2017 / Accepted: 8 November 2017 / Published: 21 November 2017
A clinching method that uses a simple toolset consisting of a punch and a die, is utilized for joining lightweight materials. This paper is aimed at investigating the wear of the die cavity of a clinching tool. A clinching tool with a specially shaped cavity was used for joining thin hot-dip galvanized steel sheets. Various types of physical vapour deposition (PVD) coatings such as ZrN, CrN and TiCN were deposited on the shaped surface of the die using Lateral Rotating Arc-Cathodes technology. Hot-dip galvanized steel sheets were used for testing the clinching tool. The material properties of PVD coatings that were deposited on the shaped part of the clinching die were evaluated. Finite Element Analysis was used to localize the area of the shaped part of the die and the part of surface area of the cylindrical die cavity of ϕ 5.0 mm, in which high contact pressure values were predicted. The prediction of the start of the wear cycle was verified experimentally by the clinching of 300 samples of hot-dip galvanized steel sheets. Unlike the CrN and ZrN coatings, the TiCN coating remained intact on the entire surface of the die. View Full-Text
Keywords: mechanical clinching; PVD coating; FEM analysis mechanical clinching; PVD coating; FEM analysis
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MDPI and ACS Style

Džupon, M.; Kaščák, Ľ.; Spišák, E.; Kubík, R.; Majerníková, J. Wear of Shaped Surfaces of PVD Coated Dies for Clinching. Metals 2017, 7, 515.

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