The Effect of Metal Cutting Force under the Atmospheric Fluid

The cutting force, the reaction force of the workpiece being cut by tool, needs to investigate of machine rigidity, machinability, tool life and cutting power etc. The force involves the three forces; the main cutting force P₁, the feed cutting force P₂, and the thrust cutting force P₃. The main cutting force P₁ is maximam value, and the cutting power is almost decided by the cutting force P₁, however the deformation of machine tool and workpiece are tightly related to the three forces. The value of cutting force is changed by rake angle of tool, depth of cut, feed, cutting speed and cutting fluid etc. In case of workpiece cutting under the atmosphric fluid, we made an experiment on the effect of cutting force. The cutting force had very few effected by various jet pressure. In short, under jet pressure, 2kg/cm², the cutting fluid had already infiltrated between tool and chip, it was because that lubrication and cooling between them were well down