The quantification of galling in forming operations of hot dip galvanized sheet metal under laboratory conditions

Jochen Giedenbacher, Anna-Elisabeth Raab, Christian Walch, Aziz Huskic

Publikation: Beitrag in Buch/Bericht/TagungsbandKonferenzbeitragBegutachtung

1 Zitat (Scopus)

Abstract

In the sheet metal forming industry, tools are subject to mechanical, thermal, chemical and tribological loads. One of the major problems in forming operations of hot-dip galvanized sheet metal is galling (build-up of zinc flakes on the tool). This phenomenon develops gradually as an adhesion on the tool surface. The adhesive wear leads to high rejection and reworking costs for large car body forming tools. Due to economic aspects and the easy castability, the forming tools are made of cast iron. These materials tend to high adhesive wear. The aim of this project is to find a three-dimensional surface parameter, which describes a tribologically advantageous surface of forming tools in order to reduce galling. An additional objective is to optimize tool materials, heat treatment and surface coating. The evaluation of galling under laboratory conditions is based on strip drawing tests. The characterization of tool materials was executed for grey cast iron (EN-GJL-200/250) and nodular cast iron (EN-GJS-700). Investigations demonstrate that the processing methods and test parameters like sliding speed and temperature have a significant influence ongalling. Three-dimensional surface parameters have also shown an effect on galling.

OriginalspracheEnglisch
TitelTHERMEC 2016
Redakteure/-innenChristof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra
Herausgeber (Verlag)Trans Tech Publications Ltd
Seiten607-612
Seitenumfang6
ISBN (Print)9783035711295
DOIs
PublikationsstatusVeröffentlicht - 2017
Veranstaltung9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Österreich
Dauer: 29 Mai 20163 Jun 2016

Publikationsreihe

NameMaterials Science Forum
Band879
ISSN (Print)0255-5476
ISSN (elektronisch)1662-9752

Konferenz

Konferenz9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
LandÖsterreich
OrtGraz
Zeitraum29.05.201603.06.2016

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