<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In the paper are presented the results of strength analysis for the two types of the welded joints made according to conventional and laser technologies of high-strength steel S960QC. The hardness distributions, tensile properties and fracture toughness were determined for the weld material and heat affect zone material for both types of the welded joints. Tests results shown on advantage the laser welded joints in comparison to the convention ones. Tensile properties and fracture toughness in all areas of the laser joints have a higher level than in the conventional one. The heat affect zone of the conventional welded joints is a weakness area, where the tensile properties are lower in comparison to the base material. Verification of the tensile tests, which carried out by using the Aramis video system, confirmed this assumption. The highest level of strains was observed in HAZ material and the destruction process occurred also in HAZ of the conventional welded joint.</p></abstract>

In the paper are presented the results of strength analysis for the two types of the welded joints made according to conventional and laser technologies of high-strength steel S960QC. The hardness distributions, tensile properties and fracture toughness were determined for the weld material and heat affect zone material for both types of the welded joints. Tests results shown on advantage the laser welded joints in comparison to the convention ones. Tensile properties and fracture toughness in all areas of the laser joints have a higher level than in the conventional one. The heat affect zone of the conventional welded joints is a weakness area, where the tensile properties are lower in comparison to the base material. Verification of the tensile tests, which carried out by using the Aramis video system, confirmed this assumption. The highest level of strains was observed in HAZ material and the destruction process occurred also in HAZ of the conventional welded joint.

Verification of Strength of the Welded Joints by using of the Aramis Video System

Department of Machine Design Fundamentals, Faculty of Mechatronics and Machine Design, Kielce University of Technology, Al. 1000-lecia PP 7, 25-314 Kielce,

Acta Mechanica et Automatica

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

In the paper are presented the results of strength analysis for the two types of the welded joints made according to conventional and laser technologies of...

Verification of Strength of the Welded Joints by using of the Aramis Video System

Published Online: Apr 04, 2017

Page range: 9 - 13

Received: Oct 08, 2015

Accepted: Mar 06, 2017

DOI: https://doi.org/10.1515/ama-2017-0002

Keywords
High-Strength Steel, Laser Welded Joints, Tensile Properties, Fracture Toughness

© 2017 Bialystok University of Technology

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

Verification of Strength of the Welded Joints by using of the Aramis Video System

Published Online: Apr 04, 2017

Page range: 9 - 13

Received: Oct 08, 2015

Accepted: Mar 06, 2017

DOI: https://doi.org/10.1515/ama-2017-0002

KeywordsHigh-Strength Steel, Laser Welded Joints, Tensile Properties, Fracture Toughness

© 2017 Bialystok University of Technology

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

Keywords
High-Strength Steel, Laser Welded Joints, Tensile Properties, Fracture Toughness