Suhardi Napid and Ahmad Bakhori 2025. Analysis Of The Effect Of Carbide Cutting Angle On The Surface Roughness Of Aisi 4337 Steel In Turning Axle Rail Shafts Without Cutting Fluid. International Journal of Health Engineering and Technology (IJHET). 3, 5 (Jan. 2025). DOI:https://doi.org/10.55227/ijhet.v3i5.252.