Normal stress due to tool evaluator uses Normal Stress = sin(Shear Angle)*Resultant Cutting Force*sin((Shear Angle+Mean Friction Angle on Tool Face-Working Normal Rake))/Cross Sectional Area of Uncut Chip to evaluate the Normal Stress, Normal stress due to tool is when a force acts perpendicular (or "normal") to the surface of a workpiece, it exerts normal stress. Normal Stress is denoted by σn symbol.
How to evaluate Normal stress due to tool using this online evaluator? To use this online evaluator for Normal stress due to tool, enter Shear Angle (ϕ), Resultant Cutting Force (Fr), Mean Friction Angle on Tool Face (β), Working Normal Rake (γne) & Cross Sectional Area of Uncut Chip (Ac) and hit the calculate button.