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Determination and control of bonding properties in aluminum composites in the combination of compound casting and forming

复合铸造和成型组合中铝复合材料粘合性能的测定和控制

基本信息

批准号：
329779887
负责人：
Professor Dr.-Ing. Noomane Ben Khalifa
金额：
--
依托单位：
Lehrstuhl für Umformtechnik und Gießereiwesen
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2017
资助国家：
德国
起止时间：
2016-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/329779887?language=en
关键词：
Determination control bonding properties aluminum

项目摘要

The production of structural composites based on aluminum materials is subject of current lightweight design developments in industry and research. The combination of different technological material properties in a single part leads to an increasing range of applications for lightweight construction materials. Knowledge of bonding properties inside the specimen is essential for a load-related design of the composites. Therefore, scientific work has been done to analyze the bonding properties reached depending on process conditions in the production of composites using primary forming and forming technology.Processing of semi-finished products consisting of a metallurgical compound for warm and cold extrusion forming technology is new and not yet investigated. Therefore, the basic correlations in the change of bonding properties of casting composites due to massive forming processes are investigated in this research project. The aim of the research project is a continuous prediction and modification concerning the bonding quality of two different aluminum alloys along the process chains compound casting - cold extrusion forming and compound casting - warm extrusion forming. Casting composites are produced in sand mold and permanent mold casting.Within the framework of the research project composite billets are produced by discontinuous casting experiments, followed by forming under different process conditions. Bonding properties are analyzed using metallographic and mechanical test methods after each process step. Determining the bonding strength enables a continuous quantification of the bonding properties, which should be transferred into a prediction model. The comparison and analysis of experimental (measured) and simulated results leads to the identification of cause-and-effect relationships for the investigated process chains.

基于铝材料的结构复合材料的生产是当前工业和研究中轻量化设计发展的主题。在一个部件中结合不同的技术材料特性，导致轻质建筑材料的应用范围不断扩大。试样内部粘结性能的知识对于复合材料的载荷相关设计是必不可少的。因此，科学工作已经完成，以分析在使用初步成型和成型技术生产复合材料的过程条件下所达到的结合性能。由冶金化合物组成的半成品的加工用于温挤压和冷挤压成型技术是新的，尚未研究。因此，在本研究计画中，我们将探讨铸造复合材料在大量成形过程中，其结合性质变化的基本相关性。研究项目的目的是对复合铸造-冷挤压成形和复合铸造-温挤压成形工艺链沿着两种不同铝合金的结合质量进行连续预测和修正。铸造复合材料是在砂型和金属型铸造中生产的。在研究项目的框架内，复合材料坯料是通过不连续铸造实验生产的，然后在不同的工艺条件下成型。在每个工艺步骤后，使用金相和机械测试方法分析粘合性能。确定结合强度能够实现结合性能的连续量化，其应当被转移到预测模型中。通过对实验（测量）和模拟结果的比较和分析，可以识别所研究过程链的因果关系。