<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A tool with a punch of ø5 mm and a die with a specially formed circular cavity and an annular gap was used for mechanical joining of thin hot-dip galvanized steel sheets. The active parts of punch and die were covered by PVD coating of ZrN type with LARC technology. The punches and the dies were tested in a complex tool by joining thin hot-dip galvanized steel sheets with the pressing force of 7,000 N. Decohesion of coating with width of 100 – 200 μm was observed in the perimeter of cylindrical part of ø5×4 mm in the in edge of punch radius R = 0.5 mm with deposited ZrN coating after the creation of 150 mechanical joints. The decohesion of PVD coating occurred mainly in the surroundings of the radius R = 0.5 mm on the front plane of ø15 mm part.</p></abstract>

A tool with a punch of ø5 mm and a die with a specially formed circular cavity and an annular gap was used for mechanical joining of thin hot-dip galvanized steel sheets. The active parts of punch and die were covered by PVD coating of ZrN type with LARC technology. The punches and the dies were tested in a complex tool by joining thin hot-dip galvanized steel sheets with the pressing force of 7,000 N. Decohesion of coating with width of 100 – 200 μm was observed in the perimeter of cylindrical part of ø5×4 mm in the in edge of punch radius R = 0.5 mm with deposited ZrN coating after the creation of 150 mechanical joints. The decohesion of PVD coating occurred mainly in the surroundings of the radius R = 0.5 mm on the front plane of ø15 mm part.

Failure of Physical Vapour Deposition Coating Zirconium Nitride on the Punch of Clinching Tool

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A tool with a punch of ø5 mm and a die with a specially formed circular cavity and an annular gap was used for mechanical joining of thin hot-dip galvanized...

Failure of Physical Vapour Deposition Coating Zirconium Nitride on the Punch of Clinching Tool

Published Online: Jun 15, 2017

Page range: 143 - 149

Received: Nov 10, 2015

Accepted: May 25, 2017

DOI: https://doi.org/10.1515/ama-2017-0022

Keywords
Clinching, PVD Coating, FEM

© 2017 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Failure of Physical Vapour Deposition Coating Zirconium Nitride on the Punch of Clinching Tool

Published Online: Jun 15, 2017

Page range: 143 - 149

Received: Nov 10, 2015

Accepted: May 25, 2017

DOI: https://doi.org/10.1515/ama-2017-0022

KeywordsClinching, PVD Coating, FEM

© 2017 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Clinching, PVD Coating, FEM