Impact of the manufacturing process on the quality of welds in twin wire mesh fencing
-
I. Schulz
Ines Schulz studied at the TU Bergakademie Freiberg and has been working as a research assistant at the Materials Laboratory of the Cologne University of Applied Sciences, Gummersbach campus, since 1994. She supervises students in materials science modules and is involved in research projects. Another area of expertise is failure analysis.
,
D. Katrakova-Krüger
Danka Katrakova-Krüger studied chemistry at the University of Sofia, Bulgaria, and materials engineering at Saarland University and at the Ecole Européenne d'Ingénieurs en Génie des Matériaux in Nancy, France. After completing her doctorate at the Chair of Functional Materials at Saarland University, she worked in industry for many years in a variety of roles. Since 2018, she has been a professor of materials science at the Cologne University of Applied Sciences, where she heads the Materials Laboratory at the Gummersbach campus. Her application-oriented research focuses on the development of materials, processes and testing methods.
Abstract
The aim of this study is to demonstrate differences in the manufacturing of twin wire mesh panels for fencing systems. To this end, twin wire mesh panels made of S235JR and of identical and different dimensions were received from different manufacturers for comparison and in order to reveal differences resulting from the manufacturing process. The quality of the panels was evaluated using light optical microscopy, Vickers hardness tests, scanning electron microscopy as well as tensile tests. Differences in the structure of the weld will be demonstrated by means of metallographic sections and hardness profiles. The zinc coatings deposited by different processes for corrosion protection were characterized by coating thickness measurements on cross sections, light optical microscopy and energy dispersive X-ray spectroscopy (EDS) measurements. Tensile tests using a specially developed clamping device were performed in order to draw conclusions on the durability of the welds.
Kurzfassung
Die Unterschiede bei der Herstellung von Doppelstabmatten für Zaunanlagen sollten dargestellt werden. Dazu wurden Doppelstabmatten aus S235JR mehrerer Hersteller sowohl mit gleichen als auch unterschiedlichen Abmessungen verglichen und die Unterschiede durch das Herstellungsverfahren herausgearbeitet. Die Bewertung der Qualität erfolgte mittels Lichtmikroskopie, Härteprüfung nach Vickers, Rasterelektronenmikroskopie und Zugprüfung. Aufgezeigt werden die Unterschiede in der Ausbildung der Schweißnaht mittels metallographischer Schliffe und Härteverläufe. Die als Korrosionsschutz mit unterschiedlichen Verfahren aufgebrachten Zinkschichten werden über Schichtdickenmessungen an den Querschliffen, Lichtmikroskopie und EDX-Messungen charakterisiert. Mit einer speziell entwickelten Einspannvorrichtung durchgeführte Zugversuche sollen Aussagen zur Haltbarkeit der Schweißverbindungen ermöglichen.
About the authors
Ines Schulz studied at the TU Bergakademie Freiberg and has been working as a research assistant at the Materials Laboratory of the Cologne University of Applied Sciences, Gummersbach campus, since 1994. She supervises students in materials science modules and is involved in research projects. Another area of expertise is failure analysis.
Danka Katrakova-Krüger studied chemistry at the University of Sofia, Bulgaria, and materials engineering at Saarland University and at the Ecole Européenne d'Ingénieurs en Génie des Matériaux in Nancy, France. After completing her doctorate at the Chair of Functional Materials at Saarland University, she worked in industry for many years in a variety of roles. Since 2018, she has been a professor of materials science at the Cologne University of Applied Sciences, where she heads the Materials Laboratory at the Gummersbach campus. Her application-oriented research focuses on the development of materials, processes and testing methods.
References / Literatur
[1] Norm DIN EN ISO 6507 Teil 1 07.2018: Metallische Werkstoffe – Härteprüfung nach Vickers – Teil 1: Prüfverfahren.Search in Google Scholar
[2] Norm DIN EN 10223 Teil 7 02.2013: Stahldraht und Drahterzeugnisse für Zäune und Drahtgeflechte – Teil 7: Geschweißte Gittermatten für Zäune.Search in Google Scholar
[3] Bayns, K.; Maksimowcs, A; et. al.: Widerstandsschweißprozess und Qualität von Baustahlgeweben. Zeitschrift Schweißtechnik, Berlin-Ost 39 (1989) 7, S. 312–314.Search in Google Scholar
[4] Aydin, M.: Untersuchungen zum Einfluss des Herstellungsverfahrens auf die Qualität von Zäunen. Bachelorarbeit TH Köln (Fakultät für Informatik und Ingenieurwissenschaften) 2024, S. 33–34.Search in Google Scholar
© 2024 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Preparation of very thin wires and foils
- Electrolytic etching of copper for grain size determination
- Precipitation reconstruction of a diffusion brazed austenite joint with Ni-filler
- Preparation methodology for the microstructural characterization of diffusion layers in a titanium/steel composite
- Impact of the manufacturing process on the quality of welds in twin wire mesh fencing
- Picture of the Month
- Picture of the Month
- News
- News
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Preparation of very thin wires and foils
- Electrolytic etching of copper for grain size determination
- Precipitation reconstruction of a diffusion brazed austenite joint with Ni-filler
- Preparation methodology for the microstructural characterization of diffusion layers in a titanium/steel composite
- Impact of the manufacturing process on the quality of welds in twin wire mesh fencing
- Picture of the Month
- Picture of the Month
- News
- News
