Roll-finishing & densification of sintered parts : Technology

The roll-finishing technology is used for the improvement of the gear teeth achieving a higher quality in comparison to the Shaving process (before Heat treatment) but definitely less expensive.

Roll-finishing Process

• Roll-finishing cycle = as many tool rotations as required. The work piece is free running and is driven only by the tools.

Advantages and characteristics

• Improved resistance to wear and pitting
• Improvement of the surface finish
• Reduction of gear noise
• Extremely short cycle times (around 10 sec. floor to floor)
• Low cost per part mainly due to the significant tool life (up to 1 million work-pieces).

Densification of sintered parts

This Process has the same philosophy as gear finishing of standard steel gears.

Advantages and characteristics

The densification of the sintered part flanks allows :

• Producing components with complex geometry
• Improvement of the mechanical characteristics and the performance of the gears
• Improvement of the surface finish