List of Articles Tool Geometry Open Access Article Abstract Page Full-Text 1 - Experimental Investigation of the Effect of Using Tools with Tapered Pins in Friction Stir Welding (FSW) of AA6061-T6 Aluminum Alloy Saleh Al Khatour Maziar Mahdipour Jalilian Mahdi Karami Khorramabadi Open Access Article Abstract Page Full-Text 2 - Friction Stir Welding of Ultrafine-Grained Al 1050: Investigation of Pin Geometry, Welding Atmosphere Temperature and Welding Speeds on the Mechanical Properties Morteza Hosseini Habib Danesh-Manesh