Chip formation as the key to process reliability
Standardized chip breaker geometry for P and M steels
MAPAL has developed a new, standardized chip breaker geometry for fine boring cutters that is specially adapted to long-chipping steel materials such as unalloyed, alloyed and stainless steels. The technology combines a defined lead and rake angle geometry with optimally matched cutting values and cutting depths to control chip formation and increase process stability.
Chip formation as the key to process reliability
In metalworking, chip formation has a decisive influence on tool life, surface quality and process reliability. Controlled chip formation is particularly important in the fine machining of stainless steels in order to minimize heat generation and tool wear.
New approach for fine boring tools
MAPAL presented the new approach at EMO 2025 in Hanover. According to the company, the precise coordination of geometry and cutting parameters creates:
- optimum chip removal
- reduced heat generation
- improved process stability
The technology leads to more stable production and at the same time improves the quality of the processed workpieces.
The standardized chip breaker geometry reduces machine downtimes and tool wear and increases the dimensional accuracy of the parts. MAPAL thus combines technical precision with economic advantages for production.
Standardization for greater efficiency
Chip breakers themselves are not a new invention, but standardization for long-chipping steel materials in fine boring is new. Until now, Mapal has tended to use customized chip breaker solutions. With the geometry now presented, the company is taking a step towards standardization and efficiency, based on decades of experience in machining technology.
Availability
The fine boring cutters with chip breaker geometry for unalloyed, alloyed and stainless steels are now available. They come with defined geometries and coatings so that they can be used directly in production.
Source: MAPAL Dr. Kress SE & Co. KG










