Process-reliable adjustment of subsurface zone properties in the machining of high-strength and ductile steels using an adaptive manufacturing system

使用自适应制造系统对高强度和延性钢加工中的地下区域特性进行过程可靠的调整

基本信息

项目摘要

Influencing the component subsurface zone is an elementary step in the manufacturing process. A combination of martensitic hardening of a subsurface zone and near-net-shape manufacturing represents a great potential to produce components with wear-resistant subsurface zones in an energy- and time-saving way. In the first funding period, an in-process soft sensor was developed and a deeper understanding of the transformation of austenitic microstructural constituents into martensite in a turning process was obtained. The aim of the proposed project is to investigate a dynamic feedforward loop for the process-safe adjustment of subsurface zone properties in the machining of high-strength and ductile steels by means of a deformation-induced austenite-martensite transformation. The combination of the geometry to be adjusted, the surface quality and the subsurface condition in the final machining by means of a multi-stage turning process is considered. On the basis of the detected initial state, the appropriate process parameters are set using the knowledge of the interrelationships of the phase transformation in the turning process in order to be able to generate the desired properties in the process. For this purpose, disturbing influences on the transformation of retained austenite during external longitudinal turning under cryogenic cooling in the process are evaluated. The setting of desired target states is based on the modelling of local transformation processes in a technological NC simulation, taking process-related uncertainties into account. With the help of a dynamic subsurface zone model, the prediction of the in-process eddy current characteristics is to be made on the basis of the subsurface zone microstructure. All elements are incorporated into the dynamic feedforward control for the targeted adjustment of the austenite-martensite transformation in the process. Research into the possibilities and limits of the method provides fundamental knowledge on the robustness of setting various specified target values by means of dynamic feedforward control.
影响部件表面下区域是制造过程中的基本步骤。表面下区域的马氏体硬化和近净形制造的组合代表了以节能和省时的方式生产具有耐磨表面下区域的部件的巨大潜力。在第一个资助期内,开发了一种过程中软测量,并对车削过程中奥氏体显微组织成分向马氏体的转变有了更深入的了解。该项目的目的是研究一个动态的前馈回路的加工过程中安全的调整亚表面区域的属性高强度和韧性钢的变形诱导的贝氏体-马氏体转变的装置。考虑了在最终加工中通过多级车削工艺调整几何形状、表面质量和表面下条件的组合。基于检测到的初始状态,利用车削过程中的相变的相互关系的知识来设置适当的过程参数,以便能够在过程中产生期望的特性。为此目的,外部纵向车削过程中的深冷冷却下的残余奥氏体的转变的干扰影响进行了评估。所需目标状态的设置基于工艺NC仿真中的局部变换过程的建模,并考虑到与过程相关的不确定性。在动态次表层模型的帮助下,基于次表层微观结构来预测过程中的涡流特性。所有元素都被纳入动态前馈控制中,用于有针对性地调节过程中的贝氏体-马氏体转变。对该方法的可能性和局限性的研究提供了关于通过动态前馈控制设置各种指定目标值的鲁棒性的基础知识。

项目成果

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Professor Dr. Bernd Breidenstein其他文献

Professor Dr. Bernd Breidenstein的其他文献

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{{ truncateString('Professor Dr. Bernd Breidenstein', 18)}}的其他基金

Manufacturing and Process Behaviour of Cutting Tools made of Stone
石材切削工具的制造及加工行为
  • 批准号:
    392377639
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Investigastion of the bonding mechanisms between veneering and framework material of all-ceramic dental restorations
全瓷牙修复体贴面与骨架材料粘接机制研究
  • 批准号:
    272425256
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Optimizing of PVD coatings for dry cutting applications by FE-simulation
通过 FE 模拟优化干切削应用的 PVD ​​涂层
  • 批准号:
    258383513
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Applikationsspezifisches Design von PVD-Beschichtungen für Zerspanwerkzeuge
针对切削刀具的 PVD ​​涂层的特定应用设计
  • 批准号:
    213842972
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants (Transfer Project)
Development of PVD-coated cutting tools made of natural rocks
开发由天然岩石制成的 PVD ​​涂层切削工具
  • 批准号:
    509573611
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Load-optimized design of PVD tool coatings
PVD 刀具涂层的负载优化设计
  • 批准号:
    462262910
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants (Transfer Project)
Functionalized subsurface zone for load-oriented fatigue behavior of hardened components
用于硬化部件负载导向疲劳行为的功能化地下区域
  • 批准号:
    468005437
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Influence of preparation-induced residual stresses in the cutting edge of cutting tools on the wear behavior of extremely hard cutting materials
切削刀具切削刃中制备引起的残余应力对极硬切削材料磨损行为的影响
  • 批准号:
    445562529
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Combined production of AISI H13 tool steel using laser-based additive manufacturing and mechanical finishing to increase performance and durability
使用激光增材制造和机械精加工联合生产 AISI H13 工具钢,以提高性能和耐用性
  • 批准号:
    528603925
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Investigation of the correlations between the properties, the grinding process and the operational behavior of rocks as a cutting material
研究岩石作为切削材料的特性、磨削过程和操作行为之间的相关性
  • 批准号:
    503208052
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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