PANAMA

Practical application of new analytical methods for aluminum alloys (AiF)

Duration: 01.05.2019 - 30.04.2021

Research Institutions: Foundry Institute

In addition to good melting and process technology, a prerequisite for the provision of high-quality castings is the detection of impurities. From an economic point of view, this requires on-line determination before casting, which cannot be realized by classical methods such as metallography or PoDFA.

The goal of the project is to enable the qualitative and quantitative detection of inclusions and phases in aluminum-based alloys by means of single spark spectrometry. In doing so, the project builds on the results of two preliminary projects in which a corresponding methodology was developed.

In addition to the continuous further development of the detection methodology, the work is primarily concerned with the creation of a database that will enable automatic identification of the microstructural constituents under investigation.

Melting unit aluminum

In addition to good melting and process technology, a prerequisite for the production of high-quality castings is the detection of impurities. From an economic point of view, this requires on-line determination prior to casting, which cannot be realized by classical methods such as metallography or PoDFA. At the Foundry Institute, both an ultrasound-based measurement principle for the determination of impurities in liquid melt and a control of the melt unit and phase formation in the solid by means of optical emission spectroscopy with evaluation of the individual discharges are being pursued.

Precision from the melt

In order to increase manufacturing precision in the production of cast components, the fundamental relationships between component distortion and the many influencing variables during solidification and further cooling are being researched at the Foundry Institute. The holistic research approach includes both experimental in-situ investigations of solidification processes and their influences on distortion phenomena, as well as multi-scale numerical simulations of the anisotropic grain structure, the calculated local properties and the developing residual stresses.