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

大长径比深孔钻削加工过程中出现的刀具扭转振动是导致刀具寿命缩短、表面质量下降和加工稳定性不足的主要原因。在优先方案1156“机床用自适应技术”范围内，在机械加工技术研究所(ISF)制定了一个实施概念，从而制造和验证了一种基于磁流变效应的原型减振器。根据计划的知识转移项目，在有前景的基础研究的基础上，将对阻尼器进行改进，以形成适合大批量生产的单唇深孔钻削和麻花钻深孔钻削的解决方案。该项目的卓越目标是实现低振动深孔钻探工艺，并将通过ISF与两个工业合作伙伴(Mapal Dr.Kress KG和Daimler AG)之间的跨学科合作来实现。所有合作伙伴都在深孔钻探领域拥有可验证的专业知识，并处理必要的先入为主的概念，以推进本项目计划的减震系统的原型开发，并将其转化为工业应用的解决方案。

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.