Machinability under different Machining Operation.
The rated machinability may vary for different cutting operations such as turning, milling, forming, etc. In order to find the machinability index, factors like tool material, tool geometry, tool life, and other cutting conditions are fixed except the speed. Then the speed at which the tool cuts the material is found for pre-determined tool life. Then it is compared with standard material.
How to Calculate Machinability Index?
Machinability Index calculator uses Machinability Index of a Material = Cutting Velocity*100/Cutting Speed of Free-Cutting Steel to calculate the Machinability Index of a Material, The Machinability Index is defined as the percentage ratio of Cutting Velocity on the material to that used on a Standard Free-Cutting Steel. It is usually calculated for an average speedof Cut spread over a time span of 20 min. Machinability Index of a Material is denoted by I % symbol.
How to calculate Machinability Index using this online calculator? To use this online calculator for Machinability Index, enter Cutting Velocity (V) & Cutting Speed of Free-Cutting Steel (V_{s}) and hit the calculate button. Here is how the Machinability Index calculation can be explained with given input values -> 1500 = 10*100/0.666666666666667.