In the first (rough) honing operation, honing sticks are manufactured from microcrystalline structure grains to give constant uninterrupted cutting action, no glazing of stones and giving the right Rz and Rmax value all throughout the honing operation with vallies created.
The second (finish plateau honing) operation, honing sticks are manufactured from green silicon carbide with precise sieving of grain particles. In this honing operation, only the highest peak points of the vallies are shaved off.
This process of plateau honing ensures;* Good oil retaintivity property* Close contact in between piston and liner* Powerful compression* Long life of compression.
