Manufacturing Technology 2021, 21(4):539-543 | DOI: 10.21062/mft.2021.060

Possibilities of Porosity Repairs after Aluminium Alloys Welding

Marian Sigmund ORCID...

Faculty of Mechanical Engineering, Institute of Manufacturing Technology, Department of Welding Technology and Surface Treatment, Technická 2896/2, 616 69, Brno, Czech Republic

This article describes problems of porosity which are caused after welding of aluminium alloys. The main part of this article is dedicated of methods of correction of porosities. The best correction is by welding or by cementation. Described parts are used for welded aluminous vehicle parts in a cooperative company. Thanks to porosity are effected not only ductility and strength of welded structures but also weld quality thereby fall also resulting in surface treatment. Cooperative company is ranked among the world's leaders in development and production automatic, electro-pneumatic and electrically operated door systems for rail vehicles and traffic island as ramps, plateaux 'sand stairs. Staffs of this company have years' experience in the area of welding rail vehicle parts from aluminous alloys. A company has a certificate on welding rail vehicles and their compo-nents according to standards EN ISO 15085- 2. For public transport company produce sliding doors, driving and inner and among - wagon doors. The same types of doors offer for long-distance transportation and also for high-speed trains. Further, they produce traffic islands, for example, extensible ramp, extensible plat-eaux, foldaway climbs and bridging, everything is produced from aluminous alloys.

Keywords: Aluminium alloys, Welding, Cementing, Porosity, Public transport.

Received: February 27, 2021; Revised: May 6, 2021; Accepted: June 10, 2021; Prepublished online: July 4, 2021; Published: September 18, 2021  Show citation