Friction stir welding of aluminium lap joint by tool without probe

Autor:	Kenji Ikeuchi, Kinya Aota
Rok vydání:	2010
Předmět:	Heat-affected zone Materials science Mechanical Engineering Metals and Alloys chemistry.chemical_element Rotational speed Welding law.invention Lap joint chemistry Mechanics of Materials Aluminium law Ultimate tensile strength Friction stir welding Composite material Joint (geology)
Zdroj:	Welding International. 24:197-205
ISSN:	1754-2138 0950-7116
Popis:	A friction stir welding process, with a rotating tool without a probe, was employed and applied to a lap joint of aluminium plate. The thickness of the aluminium plates was 0.5 mm. New tool shapes were developed. The tops of the tool were dome shaped. In this process, the rotating tool was plunged into the aluminium plate. The tool-rotating axis was vertical to the specimen surface, and then moved in the welding direction at a speed of 20 mm/s. Tool rotation speed was 18,000 rpm. At tool plunge depths of 0.1 mm or over, it was possible to weld the two plates. At tool plunge depth of 0.1 mm, its joint was fractured at the weld interface. At tool plunge depth of 0.2 mm or over, the joints were fractured at the stir zone of the upper plate or the heat affected zone of the lower plate. Based on observation of the hardness profiles and the thickness change of the weld area, controlling factors of the joint strength are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::233b4f967e635c68ae53869220e4f2b1 https://doi.org/10.1080/09507110902843149 Zobrazit plný text záznamu