Objectives of post-treatment:

• Removal of droplets after coating
• Reduction of surface roughness
• Improved chip flow for cutting tools

One of the problems that can arise without post-treatment of the surfaces is the jamming of the chips, which can
cause a tool such as a drill to break. If the post-treatment is too intense, the edge will become exposed.

This will lead to:

• Immediate full and direct contact of the cutting-edge with the workpiece material
• Low thermal and chemical insulation
• Low coating thickness near the cutting-edge
• A larger cutting-edge radius, which results in a larger surface area without coating
• The impression of a defective coating

 

Benefits of post treatment