Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences
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Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences

Intelligent Systems Research Group


Machine Learning for the Inversion of Structure-Property Mappings

Tarek Iraki, M.Sc. 
Johannes Dornheim, M.Sc. 
Prof. Dr. Norbert Link​​​​​​​

Funding: DFG

Duration: 2019 - 2022


The derivation of processing control actions for the production of materials with certain, desired properties is the "inverse problem" of the causal chain "process control - microstructure instantiation - material properties". The main goal of the proposed project is the creation of a new basis for the solution of this problem by using modern approaches from the field of Machine Learning.

The inversion will be composed of two explicitely separated parts: "Property-Structure-Mapping" and "structured-guided optimal process control". The focus of the project lies on the investigation and development of methods which allow an inversion of the structure-property-relations of materials relevant in the industry. This inversion is the basis for the design of microstructures and for the optimal control of the related production processes.

Another goal is the development of optimal control methods yielding exactly those structures which have the desired properties. The developed methods will be applied to sheet metals within the frame of the project as a proof of concept. The goals include the development of methods for inverting technologically relevant "Structure-Property-Mappings" and methods for efficient microstructure representation by supervised and unsupervised machine learning. Adaptive processing path-optimization methods, based on reinforcement learning, will be developed for adaptive optimal control of manufacturing processes.

We expect that the results of this work will lead to an increasing insight into technological relevant process-structure-property-relationships of materials. The instruments resulting from the project will also promote the economically efficient development of new materials and process controls.

Partners & Funding

The work of MaLISE is carried out with our partner Fraunhofer Institute for Mechanics of Materials IWM.

The project is funded by the German Research Foundation (DFG).