Generation and Preconditioning of Aluminium Matrix Composite Friction Surfaces of Braking Discs

制动盘铝基复合摩擦面的生成与预处理

基本信息

  • 批准号:
    414236319
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    德国
  • 项目类别:
    Research Grants (Transfer Project)
  • 财政年份:
    2020
  • 资助国家:
    德国
  • 起止时间:
    2019-12-31 至 2022-12-31
  • 项目状态:
    已结题

项目摘要

In the industrialised countries, transport plays a significant role in the generation of emissions, which result in addition to the combustion of the fuel from the abrasion of tires and brake system components. A hitherto comparatively little considered tribological system are the braking systems of passenger cars, contributing significantly to brake dust emissions into the environment. Currently, brake discs made of cast iron are used in the vast majority of cars. However, in addition to the brake pads they are subject to significant wear.The application of particle-reinforced aluminium matrix composites (AMCs) is intended in particular to considerably reduce the wear of both the brake disc and the brake pad. A large-scale use of such a braking system in motor vehicles is still not possible, since on the one hand, basic tribological relationships are poorly understood. On the other hand, suitable finishing processes for the generation of functional surfaces (friction surfaces) at the AMCs are missing. The primary goal of the project is therefore to gain a deeper understanding of the interactions in the tribological system consisting of the brake disc and the brake pad. In this case, the surface properties resulting from the specific finishing of the brake discs as well as a preconditioning of the brake discs are to be taken into account. In the end, the wear mechanisms occurring in relevant loading regimes shall be understood. This can only be achieved through an interdisciplinary research approach, uniting material and production engineering work.An important research goal is the creation of knowledge for a largely damage-free and appropriate surface generation of AMCs for the application as a brake disc friction surface. The focus of the tribological investigations lies on fundamental mechanisms of action between the surface properties, a preconditioning (controlled production of tribological films), as well as its running-in and wear behaviour. For preconditioning, micro-edges that are perpendicular to the direction of the braking motion are considered favourable. One approach is to remove the matrix alloy by just a few microns so that the sharp-edged particles protrude slightly out of the matrix. By superimposing an ultrasonic vibration in turning as a second approach, corresponding micro-edges are to be produced directly during finish machining without a subsequent process step. The respective surfaces are characterised in detail by optical and tactile methods as well as the surface layers by means of microstructure resolving methods. The results obtained on a laboratory scale at Chemnitz University of Technology are to be transferred to the industrial partner on the component brake disc and tested there comprehensively according to the test procedures prescribed for the braking system.
在工业化国家,交通运输在产生排放方面发挥着重要作用,除了轮胎和制动系统部件磨损造成的燃料燃烧外,还造成排放。迄今为止,相对较少考虑的摩擦学系统是客车汽车的制动系统,其显著地促进了制动粉尘排放到环境中。目前,绝大多数汽车都使用铸铁制成的制动盘。然而,除了刹车片外,它们也会受到严重的磨损。颗粒增强铝基复合材料(AMC)的应用尤其旨在显著降低刹车盘和刹车片的磨损。在机动车辆中大规模使用这种制动系统仍然是不可能的,因为一方面,基本的摩擦学关系知之甚少。另一方面,缺少在AMC处生成功能表面(摩擦表面)的合适的精加工工艺。因此,该项目的主要目标是更深入地了解由制动盘和制动片组成的摩擦学系统中的相互作用。在这种情况下,应考虑制动盘的特定精加工以及制动盘的预处理所产生的表面特性。最后,应了解在相关载荷制度下发生的磨损机制。这只能通过跨学科的研究方法来实现,将材料和生产工程工作结合在一起。一个重要的研究目标是创造知识,使AMC在很大程度上无损伤,并适合作为制动盘摩擦表面的应用。摩擦学研究的重点在于表面性能之间的基本作用机制、预处理(摩擦学薄膜的受控生产)以及其磨合和磨损行为。对于预处理,垂直于制动运动方向的微边缘被认为是有利的。一种方法是将基体合金去除几微米,使得边缘锋利的颗粒从基体中略微突出。作为第二种方法,通过在车削中叠加超声振动,在精加工期间直接产生相应的微边缘,而无需后续工艺步骤。通过光学和触觉方法以及通过微观结构解析方法的表面层来详细表征各个表面。在切姆尼茨理工大学实验室规模上获得的结果将转移到部件制动盘的工业合作伙伴,并在那里根据制动系统规定的测试程序进行全面测试。

项目成果

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Professor Dr.-Ing. Thomas Lampke其他文献

Professor Dr.-Ing. Thomas Lampke的其他文献

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

Fatigue behaviour of aluminium alloys after anodic and plasma-electrolytic oxidation
阳极和等离子体电解氧化后铝合金的疲劳行为
  • 批准号:
    435265960
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Chemical and electrical interaction mechanisms during the plasma electrolytic (PEO) mixed oxide formation on magnesium
镁上等离子电解(PEO)混合氧化物形成过程中的化学和电相互作用机制
  • 批准号:
    421508739
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Coating materials made of high-entropy alloys for tribologically highly stressed surfaces
用于高摩擦应力表面的高熵合金涂层材料
  • 批准号:
    415816419
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Thermomechanical Treatment of High-alloyed Martensitic Stainless Steels for Complex Parts
复杂零件用高合金马氏体不锈钢的形变热处理
  • 批准号:
    334485458
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Mechanisms of the plasma electrolytic oxidation of light-metal-based material compounds
轻金属基材料化合物的等离子体电解氧化机理
  • 批准号:
    339953808
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Functional surface design by complementarily matched thermal spray and cutting processes
通过互补匹配的热喷涂和切割工艺进行功能表面设计
  • 批准号:
    270118517
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Graded plasma-anodised oxide coatings for wear and corrosion protection on titanium aluminides
用于对铝化钛进行磨损和腐蚀防护的分级等离子阳极氧化涂层
  • 批准号:
    253127141
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Plasma-electrolytic oxidation of thermally sprayed aluminium coatings for high-temperature wear applications under particle-loaded hot-gas jets
热喷涂铝涂层的等​​离子电解氧化,用于颗粒负载热气射流下的高温磨损应用
  • 批准号:
    265717247
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Prediction of the residual strength of corroded high-strength aluminum alloys under uniaxial loading by numerical simulations
单轴载荷下腐蚀高强铝合金残余强度的数值模拟预测
  • 批准号:
    259373824
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Layer formation mechanisms during plasma-anodising of magnesium in dependence of the electrolyte composition
镁等离子阳极氧化过程中的层形成机制与电解质成分的关系
  • 批准号:
    258050305
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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EXCESS: The role of excess topography and peak ground acceleration on earthquake-preconditioning of landslides
过量:过量地形和峰值地面加速度对滑坡地震预处理的作用
  • 批准号:
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    10713034
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预处理脑白质以抵抗缺血
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Plexaa:乳腺癌手术患者术前预处理的创新,可预防伤口愈合并发症并改善预后
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Collaborative Research: Robust Acceleration and Preconditioning Methods for Data-Related Applications: Theory and Practice
协作研究:数据相关应用的鲁棒加速和预处理方法:理论与实践
  • 批准号:
    2208412
  • 财政年份:
    2022
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    Standard Grant
NSF-BSF: AF: Collaborative Research: Small: Randomized preconditioning of iterative processes: Theory and practice
NSF-BSF:AF:协作研究:小型:迭代过程的随机预处理:理论与实践
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    2209510
  • 财政年份:
    2022
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    --
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