metalworkingmag.com
07
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Drilling Optimization: The Hägglunds Case Study
Integration of the CoroDrill DE10 stabilizes production and increases operational efficiency by 18%.
www.sandvik.coromant.com

Industry Sector: Precision mechanical machining.
Application Area: Drilling processes in difficult-to-machine materials for transmission components.
Hägglunds, a Bosch Rexroth brand, has overcome critical challenges in drilling bearing steel cam rings—a high-strength material—through a collaboration with Sandvik Coromant. The previously used tooling failed to provide the reliability necessary for unsupervised production, limiting productivity due to the requirement for constant operator monitoring.
Technical Solution: CoroDrill® DE10
The transition to the CoroDrill® DE10 system, a second-generation indexable insert drill launched in March 2025, stabilized the manufacturing process. Key technical advantages include:
- Clamping Interface: A patented design with pre-tensioning and high clamping force, ensuring superior centering and stability.
- M5 Geometry: A versatile insert featuring plug-and-play efficiency that eliminates the need for pilot drilling, optimizing cycle times across various applications.
- Repeatability: The ability to maintain tight tolerances for thousands of holes, ensuring consistency between the first and last parts produced.

Productivity Impact and "Manufacturing Wellness"
Adopting this holistic tooling strategy has generated measurable performance improvements at the facility:
- Efficiency: An overall increase in productivity of 18%.
- Tool Life: A doubling of cutting time per insert, increasing from 40 to 80 minutes.
- Automation: Increased operational stability now allows for unsupervised machining, enabling personnel to focus on higher-value tasks.
This transformation aligns with Sandvik Coromant’s "manufacturing wellness" philosophy, which aims to strengthen operational resilience through tool optimization and the transfer of engineering expertise, avoiding the need for costly machine park renewals.
Edited by Lekshman Ramdas, Induportals editor – adapted by AI.
www.sandvik.coromant.com
Edited by Lekshman Ramdas, Induportals editor – adapted by AI.
www.sandvik.coromant.com

