10mm full penetration butt weld method

Previous Next Contents. To describe the different types of structural welds and give basic information on weld preparation and weld quality. Mechanical and geometrical characteristics of welds are described. Fundamental principles concerning edge preparation, fit-up, and quality of welds are given. Where there are favourable working conditions, welding is the most economical way to make strong connections.
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Lecture 11.2.1: Generalities on Welded

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Assessment of the Weldability of T-Welded Joints in 10 mm Thick TMCP Steel Using Laser Beam

The 10 mm thick high-yield-point steel SMC obtained in an industrial manufacturing process was used for tests of laser welding. The joints made during the tests were single- and double-sided. Single-sided welding performed at the output laser beam power of 11 kW provided the penetration depth of just 8 mm without visibly deforming of the joint. The double-sided welded joints were characterized by proper geometry and the presence of gas pores in the welds not compromising the requirements of quality level B strict requirements. The identified weld structure was bainitic-ferritic. The weld hardness was by approximately 60 HV1 higher than that of the base material HV1. The tests of thin foils performed using a high-resolution scanning transmission electron microscope revealed that, during welding, an increase in the content of the base material in the weld was accompanied by an increase in contents of alloying microagents Ti and Nb, particularly near the fusion line.
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SteelConstruction.info

Welding is a core activity in the fabrication factory, undertaken by skilled, qualified operatives working to a welding quality management system under the control of a Responsible Welding Coordinator. It is used to prepare joints for connection in the shop and on site, and for the attachment of other fixtures and fittings. Different welding techniques are used for different activities within the fabrication factory.
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Previous Next Contents. To present the general methods for conducting calculations to determine the strength of butt and fillet welds. The bases for the calculation of weld strength are set out. A large part of the lecture deals with the actual stress distribution and the deformability of fillet and butt welds.
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