High Turning Efficiency of Cubic Boron Nitride CBN Inserts for Cutting Gear Shaft
high surface finish of machined workpiece, reducing tool changing time, and greatly improving production efficiency. It has obvious advantages of replacing cemented carbide tools.
Gear shaft is a kind of mechanical parts that support rotating parts and rotate with them to transfer motion, torque or bending moment. Generally, it is in the shape of a metal rod,
and each section can have different diameters. The rotary parts of the machine are installed on the shaft.
The machining requirements of gear shaft:
1) Gear shaft, as the main basic transmission components and consumer parts in automobile and machine tool industries, its quality directly affects the noise, stability and service
life of automobile and machine tool.
2) Gear shaft mainly bears alternating load, impact load, shear stress and contact stress. The shaft is easy to crack and the tooth is easy to wear. Therefore, the center of the gear
shaft is required to have certain strength and toughness, high fatigue limit and multiple impact resistance.
3) The surface of gear shaft should also have certain hardness and wear resistance. In order to obtain good service life, carburizing and quenching process is often used for gears
and gear shafts.
4) The difficulty of gear shaft hard turning is intermittent cutting in some positions, such as small holes in the end face of gear or keyway in the inner hole, etc., high hardness and
strong intermittent, which is easy to cause problems such as tool chipping and rapid wear.
Previous Article：The Technological Conditions of Using Diamond CNC Tools