Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Process chain modeling for the manufacturing of high strength structural parts made of friction stir welded aluminum blanks

Datum: 18.12.2017



  • Prof. Dr.-Ing. habil. M. Merklein
  • Prof. Dr.-Ing. habil. M. Schaper

Lightweight structural parts for air and space travel must meet certain requirements, such as a low weight and high strength, while not exceeding a limited budget. A promising approach in production engineering depicts the processing of friction stir welded aluminum blanks in forming technology process chains. This project seeks to find a method to depict a model-based process chain that enables the systematic design of parts and processes. The primary challenge was gaining a basic understanding of the material behavior of a local joint zone during forming and heat treatment. Based on experimental research and FE simulations, the material behavior was analytically depicted, characteristic fault images were classified, and the influence of a conditioning heat treatment was evaluated. By building on these findings, process routes can be specifically selected and the component strength can be raised.