List of Articles Rotation speed Open Access Article Abstract Page Full-Text 1 - Effect of Welding Parameters on Microstructure and Mechanical Properties of Friction Stir Spot Welded of Titanium Alloy TiAl6V4 Saeid Nader Masoud Kasiri- Asgarani kamran amini Morteza Shamanian Open Access Article Abstract Page Full-Text 2 - Artificial Neural Networks Models for Rate of Penetration Prediction in Rock Drilling Naser Ebadati‎ Mehrab ‎ Azizi Open Access Article Abstract Page Full-Text 3 - Dissimilar Friction Stir Welding between Magnesium and Aluminum Alloys Mahdi Salari