Hybrid interaction during and after thixoforging of multi material systems

多材料系统触变锻造期间和之后的混合相互作用

基本信息

项目摘要

In times of rising energy and resource costs, improvement of efficiency in production and application is an important technological driver for development and optimization of manufacturing processes. Thereby, an effective input for saving energy and the conservation of resources is contributed by weight reductions within the production of locally optimized and on load cases adapted hybrid components.The aim of this research project is to develop the process for thixoforging of hybrid components with metal-to-metal bonds. Thereby, the characterization of the intermetallic phases occurring both during and after the thixoforging process between the different metallic materials is a major research topic. In the first funding period, the focus was on the development of two process routes as well as the specific design of the metallic compounds to be produced, taking into account the interaction mechanisms occurring in the joining and transition zones of the different materials. While in the first funding period, simple disk components were initially produced in the course of the real forming tests, a non-rotationally symmetrical component geometry with more complex flow paths is to be implemented in the second funding period in order to gain a deeper understanding of the flow behaviour during simultaneous forming of two different semi-liquid metal alloys. Furthermore, the deficits that occured in the simulative illustration of thixoforging of hybrid semi-finished products during the first funding period are to be remedied by the proposed research work in the second funding period.The following scientific objectives will be pursued within the second funding period:- Investigations of the joint forming of graded semi-finished products by thixoforging taking into account complex flow paths and modelling of the material flow by means of FEM simulation- Development of a numerical model for FEM simulation in order to describe thixotropic material properties by flow curves of different semi-solid metal alloys- Investigations of the material transitions between the different materials during heating and after the forming process- Determination of the functional properties of the hybrid components and in particular the mechanical properties of the crated joining zones- Transfer of the knowledge gained to hybrid semi-finished products made of materials with significantly diverging melting points (temperature difference > 100 K)
在能源和资源成本不断上升的时代,提高生产和应用效率是开发和优化制造工艺的重要技术驱动力。因此,通过在局部优化和负载情况下适应的混合部件的生产中减轻重量,可以有效地节省能源和资源。本研究项目的目的是开发具有金属-金属结合的混合部件的触变成形锻造工艺。因此,在不同金属材料之间的触变锻造过程期间和之后发生的金属间相的表征是一个主要的研究课题。在第一个供资期内,重点是开发两种工艺路线以及待生产的金属化合物的具体设计,同时考虑到不同材料的连接和过渡区发生的相互作用机制。在第一个资助期内,最初在真实的成形试验过程中生产简单的盘部件,而在第二个资助期内,将实施具有更复杂流动路径的非旋转对称部件几何形状,以便更深入地了解两种不同半液态金属合金同时成形期间的流动行为。此外,在第一个资助期内,混合半成品的触变成形模拟研究出现的不足之处,将由第二个资助期内的拟议研究工作弥补。在第二个资助期内,我们会致力达致下列科学目标:- 通过触变锻造研究分级半成品的接头成形,同时考虑复杂的流动路径,并通过FEM模拟对材料流动进行建模-开发有限元模拟的数值模型,以便通过不同半固态金属合金的流动曲线描述触变材料特性-研究加热过程中和成形过程后不同材料之间的材料转变-确定混合部件的功能特性,特别是板条箱连接区域的机械特性-将获得的知识转移到由具有显著不同熔点的材料制成的混合半成品(温差> 100 K)

项目成果

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Professor Dr.-Ing. Mathias Liewald其他文献

Professor Dr.-Ing. Mathias Liewald的其他文献

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{{ truncateString('Professor Dr.-Ing. Mathias Liewald', 18)}}的其他基金

Development of a process for the two-stage production of gears
齿轮两阶段生产工艺的开发
  • 批准号:
    443284947
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Production and characterization of complex folded cellular structures made of sheet metal
由金属板材制成的复杂折叠蜂窝结构的生产和表征
  • 批准号:
    427257349
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Production of bead-shaped parts by cold extrusion of semi-finished products fabricated by composite hot extrusion
复合材料热挤压制造的半成品冷挤压生产珠状零件
  • 批准号:
    404239924
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Springback compensation by stress superposition in forming of ultra high-strength steel sheets
超高强度钢板成形中的应力叠加回弹补偿
  • 批准号:
    396455913
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Integration of functional elements in sheet metal components through deep-drawn double blanks
通过深拉双毛坯将功能元件集成到钣金部件中
  • 批准号:
    362037730
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Manufacturing of metal-ceramic Interpenetrating Phase Composites using semi-solid forming
利用半固态成型制造金属陶瓷互穿相复合材料
  • 批准号:
    392513301
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Joining of metal and fibre components based on the semi-solid forming process
基于半固态成型工艺的金属和纤维部件的连接
  • 批准号:
    271949384
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Process combination of lateral extrusion and shear forming with straight tool motion to manufacture crankshaft-like components
将横向挤压和剪切成型与直线工具运动相结合的工艺组合来制造曲轴类部件
  • 批准号:
    276963522
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
New methodology of springback compensation for Advanced High Strength Steels based on geometrical modifications
基于几何修改的先进高强度钢回弹补偿新方法
  • 批准号:
    267134330
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of a layered composite material with one-sided stiffeners and thin damping layer and characterization of its formability
一种具有单面加强筋和薄阻尼层的层状复合材料的开发及其成形性能表征
  • 批准号:
    262424410
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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