Development of an adaptive magnetorheological Damper System for the Deep Hole Drilling

• Applicant: Professor Dr.-Ing. Dirk Biermann
• Subject Area: Metal-Cutting and Abrasive Manufacturing Engineering
• Term: from 2013 to 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 231512434

The torsional vibrations of the tool that appear in deep hole drilling processes with large length-to-diameter-ratio are the cause for a shortened tool life, degradations in the surface quality and for an insufficient process stability. Within the Priority Programme 1156 “Adaptronics for Machine Tools” an implementation concept was developed at the Institute of Machining Technology (ISF) that resulted in the manufacturing and proving of a prototypical vibration damper based on the magneto-rheological effect. In the line of the planned knowledge transfer project and based on the promising fundamental research the damper is to be enhanced to result in an adaptive solution for the single-lip deep hole drilling and the deep hole drilling using twist drills in mass production. The superior aim of the project is the realization of a low vibration deep hole drilling process and shall be reached by the interdisciplinary collaboration between the ISF and two industrial partners, the MAPAL Dr. Kress KG and the Daimler AG. All of the collaboration partners hold a verifiable expertise in the domain of the deep hole drilling and dispose of the necessary preconceptions to advance in the prototypical development of the damping system planned in this project and transform it into a solution for industrial application.

• DFG Programme: Research Grants (Transfer Project)
• Participating Institution: Daimler AG (aufgelöst); MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG