How are the cutting forces while doing Hard turning as compared to soft machining & how to counter those?
In Hard Turning only thrust/radial outward force is higher as compared to soft machining. Rest of the forces i.e. Principal force (downward on tool) & Feed force (axial force pushing tool in opposite direction of feed) remain unchanged. Thrust force affects the dimension in deep boring application (L/D of boring Bar more than 3), to counter this we recommend to use Carbide shank boring bar. Sumitomo has introduced a special series of Boring bars, for Hard Turning, made of 100% carbide. By these boring bars the finish, accuracy & life of the tools can be expected better than the conventional carbide boring bar being marketed. For further details write to us or contact our regional sales team.
