PERFOMANCE OF GEAR HONES WITH VARIOUS BONDING AGENTS DEPENDING ON THEIR MATERIAL’S MECHANICAL PROPERTIES

Abstract

Gear hones are used for finish machining of hardened gear teeth lateral faces applying the generating method. The effectiveness of using such tools depends mainly on their composite material’s mechanical properties: bending strength, shrinkage, hardness, and the elasticity modulus. In practice, gear hones feature low durability and often fail due to tooth strippage; besides, they gave insufficient cutting capacity and wear resistance. It is of interest to study operation capacity of the most advanced gear hones with relatively hard eposy-aceturic and elastic hydroxyurethane bonding agents that have improved mechanical properties of the material. It was demonstrated that operational durability of such gear hones increases at increased bending strength and hardness and decreased material shrinkage. Elastic gear hones with a hydroxyurethane bonding agent also depend on the elasticity modulus; a value of 500…1000 MPa should be considered optimal. High durability of such gear hones is ensured even at low values of bending strength due to deformability of the teeth material.