Optimized wobble milling to increase process efficiency and machining quality when machining CFRP

优化的摆铣可提高加工 CFRP 时的工艺效率和加工质量

• 批准号: 413574937
• 负责人: Professor Dr.-Ing. Volker Schulze
• 金额: --
• 依托单位: Institut für Produktionstechnik (WBK)
• 依托单位国家: 德国
• 项目类别: Research Grants (Transfer Project)
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/413574937?language=en
• 关键词: Optimized; wobble; milling; increase; process

The objective of this project is to optimize the existing wobble milling process to increase process efficiency and improve the machining quality in cooperation with an industrial partner. In addition to wobble milling further insights for tool design for machining fiber reinforced plastics (FRP) will be generated in this project. The subgoals of this project are to reach an increase of process efficiency and a reduction of damage with the optimized wobble milling process when drilling FRP, to develop a simulation program for process design and determination of tool geometry for multiaxial machining processes considering the material setup as well as to create a procedure for industrial process design. The optimized wobble milling should allow significant increase in efficiency in comparison to the present wobble milling caused by the new setup at additionally improved machining quality. The increase of efficiency will be ensured with the reduction from three to two process steps. In this way the process complexity as well as processing time for wobble milling decreases. The primary challenges for process development consist in the design and determination of interactions between the individual geometry parameters of the tool. The geometrical elements need to be balanced in a way that when machining the top layer in the first process step the process force needs to be directed downwards to the inner of the workpiece. In the second process step the process force at the bottom side needs to be directed upwards to the inner of the workpiece. The investigations of different layer structures with continuous fiber reinforcement ensure the spread of effective usability of the developed process. The challenge for the development of the simulation program consists in the description of the process kinematic, the implementation of material parameters and the developed process force models. With this program a new module will be created at which the process design can be adjusted to various requirements. The simulation is necessary for tool and process design and allows a dissemination of the developed processes to the industrial environment. Within the planed project a significant gaining knowledge for machining of FRP can be reached. In addition to the validation of the process an approach for the use of the optimized wobble milling in industrial environment will be developed. Therefore this research project provides a substantial contribution for a sustainable and economic production and offers a direct benefit for technical applications.

该项目的目的是优化现有的Wobble铣削过程，以提高过程效率并提高与工业合作伙伴合作的加工质量。除了摇摆铣削以用于加工纤维增强塑料（FRP）工具设计的进一步见解外，该项目还将生成。该项目的子目标是提高过程效率的提高，并在钻孔FRP时通过优化的摇摆铣削过程降低损害，以制定一个模拟程序，用于考虑材料设置的多轴加工过程的过程设计和确定工具几何形状，并为工业流程设计创建过程。优化的摇摆铣削应与新设置在另外改进的加工质量下引起的当前摆动铣削相比，效率应显着提高。随着三个过程步骤的减少，将确保效率的提高。通过这种方式，过程复杂性以及摇摆铣削的处理时间减少。过程开发的主要挑战在于工具的各个几何参数之间的相互作用的设计和确定。几何元素需要以一种方式平衡，即在第一个过程中加工顶层时，需要将过程力向下定向到工件的内部。在第二个过程步骤中，底部的过程力需要向上定向到工件的内部。对具有连续纤维增强的不同层结构的研究确保了开发过程的有效可用性的传播。开发模拟程序的挑战在于过程运动学的描述，材料参数的实现和开发的过程力模型。使用此程序将创建一个新的模块，可以将过程设计调整为各种要求。模拟对于工具和过程设计是必需的，并允许将开发过程传播到工业环境中。在计划的项目中，可以达到大量获得FRP加工的知识。除了验证过程之外，还将开发在工业环境中使用优化的摆动铣削的方法。因此，该研究项目为可持续和经济生产提供了重大贡献，并为技术应用提供了直接的好处。