List of Articles Surface Roughness Open Access Article Abstract Page Full-Text 1 - The Effect of Nozzle Diameter and Water Pressure On Cutting CK45 Steel Quality in Water Jet Process Unes Anamoradi Mehrdad Ozv Aminian Open Access Article Abstract Page Full-Text 2 - Comparing and Investigating the Effect of Input Parameters on External Parameters in Parts of Different Materials in EDM Operation Using Taguchi Method Seyed Mohammad Reza Nazemosadat Ahmad Afsari Najwan Nejah Adnan Jeddeh Alireza Bahramkia Open Access Article Abstract Page Full-Text 3 - Application of orthogonal array technique and particle swarm optimization approach in surface roughness modification when face milling AISI1045 steel parts Masoud Azadi Moghaddam Farhad Kolahan Open Access Article Abstract Page Full-Text 4 - On the use of back propagation and radial basis function neural networks in surface roughness prediction Angelos P. Markopoulos Sotirios Georgiopoulos Dimitrios E. Manolakos Open Access Article Abstract Page Full-Text 5 - اثر زبری سطح بر ضریب اصطکاک خشک فولاد - فولاد ح. چارستاد س.م خورسندی جو