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voestalpine Böhler Welding is a manufacturer of welding consumables (joint welding, maintenance, repair and overlay welding and brazing), welding equipment and accessories with headquarters in Düsseldorf. The company owns over 50 subsidiaries in more than 25 countries, 2,300 employees, customers in approximately 150 countries and more than ...
In fusion welding, the heat-affected zone (HAZ) is the area of base material, either a metal or a thermoplastic, which is not melted but has had its microstructure and properties altered by welding or heat intensive cutting operations. The heat from the welding process and subsequent re-cooling causes this change from the weld interface to the ...
Voestalpine Steel: steel strip, heavy plate, casings for large turbines [59] Voestalpine High Performance Metals: high-tech surface treatments, heat treatment, additive manufacturing processes [60] Voestalpine Metal Engineering: railway infrastructure and industrial systems, including full welding solutions and seamless tubes [61]
Böhler-Uddeholm was listed on the Vienna Stock Exchange between 10 April 1995 and 5 September 2008. In April 2007, voestalpine AG made a takeover offer for Böhler-Uddeholm - the bid was accepted by a majority of shareholders in June of that year. voestalpine completed a squeeze out of Böhler-Uddeholm's remaining shareholders in September 2008 to gain complete control.
Welding - Studs and ceramic ferrules for arc stud welding: ISO 13919-1: Welding - Electron and laser-beam welded joints - Guidance on quality level for imperfections - Part 1: Steel ISO 13919-2: Welding - Electron and laser-beam welded joints - Guidance on quality level for imperfections - Part 2: Aluminium and its weldable alloys ISO 13920
One is from the American Welding Society (AWS) and recommended for structural steels and the other is the formula based on the International Institute of Welding (IIW). [3] The AWS states that for an equivalent carbon content above 0.40% there is a potential for cracking in the heat-affected zone (HAZ) on flame cut edges and welds. However ...
When a hot steel work-piece is quenched, the area in contact with the water immediately cools and its temperature equilibrates with the quenching medium.The inner depths of the material however, do not cool so rapidly, and in work-pieces that are large, the cooling rate may be slow enough to allow the austenite to transform fully into a structure other than martensite or bainite.
The AWS defines welding PQR as a record of welding variables used to produce an acceptable test weldment and the results of tests conducted on the weldment to qualify a Welding Procedure Specification. For steel construction (civil engineering structures) AWS D1.1 is a widely used standard.