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Contactless and continuous monitoring of the thermo-mechanical load profiles of protective coatings in the manufacturing technology by integrated ferromagnetic thin films

通过集成铁磁薄膜对制造技术中保护涂层的热机械负载曲线进行非接触式连续监测

基本信息

批准号：
268186869
负责人：
Professor Dr.-Ing. Eckhard Quandt
金额：
--
依托单位：
Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
依托单位国家：
德国
项目类别：
Research Grants (Transfer Project)
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2018-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/268186869?language=en
关键词：
Contactless continuous monitoring thermo mechanical

项目摘要

The present project proposal aims at wear resistant films with integrated and established ferromagnetic films as a film composite on hard metal substrates (cutting inserts as a tool for metal cutting) with a sensor function for industrial applications. By it the exposure profile of the wear resistant film or tool ought to be continuously controlled during a turning process in production technology. In order to realise data compilation, a sensor measuring head (high-frequency coil) will be refined which records changes of the susceptibility or permeability through changes of the magnetic properties due to the temperature evolution within a distance of a few millimetres in a non-contact mode. At this point, the magnetoelastic properties in connection with the induced film stress, i.e., also changes of the magnetic film anisotropy as well as the temperature dependent magnetisation which interact with the sensor sensitivity, play a crucial role. By means of these data the correlation with the tool status such as wear will be elaborated. One of the challenges, among others, is to miniaturise the measuring head and to approach it to the cutting edge as close as possible by simultaneously adapting it to the entire tool system. As a result a model system representing a demonstrator under real cutting- and ambient conditions (mounting, lubricant and coolant) will serve as a basis for an optional product development.

本项目提案的目的是在硬金属基底（作为金属切削工具的切削刀片）上形成具有传感器功能的耐磨薄膜，并将铁磁薄膜作为薄膜复合材料，用于工业应用。通过它，在生产技术中的车削过程中，耐磨膜或工具的暴露轮廓应该被连续地控制。为了实现数据编辑，将改进传感器测量头（高频线圈），该传感器测量头以非接触模式通过几毫米距离内的温度演变引起的磁性变化来记录磁化率或磁导率的变化。在这一点上，磁致弹性性质与感应膜应力，即，磁膜各向异性的变化以及与传感器灵敏度相互作用的温度相关的磁化强度也起关键作用。通过这些数据，将阐述与刀具状态（如磨损）的相关性。其中一个挑战是使测量头简化，并通过同时使其适应整个刀具系统，使其尽可能接近切削刃。因此，在真实的切削条件和环境条件（安装、润滑剂和冷却剂）下的演示模型系统将作为可选产品开发的基础。