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Investigation of the local suitability for adhesive bonding of aluminium die-cast components
  • Bachelor and Master Thesis
    • Battery research: Selective laser sintering for use in future batteries
    • Evaluation of the influence of particle contamination depending on the separator and compression using the Hi-Pot Test
    • Contacting of metal-polymer current collectors for use in cylindrical cells: Concept development and validation
    • Optimization of a bending test for the mechanical characterization of battery electrodes
    • Influence of cutting process and free cut edge geometry on the Al-5083 fatigue strength
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    • Laser beam assembly of lithium metal anodes
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    • Remelting effect on temperature field, residual stress, and distortion in WAAM components
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    • Investigation of the local suitability for adhesive bonding of aluminium die-cast components
    • Investigation of the local suitability for welding of aluminium die-cast components
    • Influence of thermal cutting processes on the quality of the cut edges
    • Toughness of high strength welded steels

Investigation of the local suitability for adhesive bonding of aluminium die-cast components

Background

Die casting is a common industrial process for the production of complexly shaped products made of light metal alloys. However, the adhesive processing of die-cast aluminium components is fraught with a number of challenges. Among other things, the alloy composition and the coating with release agents can have a negative influence on the adhesive bond to the component surface as well as its resistance to ageing and corrosion. Depending on the position on the component, both influencing factors can show significant differences in their characteristics, so that the adhesion suitability for each joining position must be carefully examined.

Task

The aim of this thesis is to investigate the influence of release agent assignments and element distribution on the local suitability for adhesion of aluminum die-cast components. For this purpose, a literature search on the basics of adhesive bonding of aluminium die casting must first be carried out. In the experimental part, tests are to be carried out with the preparation of adhesive bonds, tensile shear tests and the subsequent analysis of the fracture patterns of the bonds. In addition, material investigations are planned to determine the local element distribution and the release agent occupancy. The results of these investigations are to be correlated with the varied casting process parameters.

 The image shows the inhomogeneous temperature distribution on a solidifying aluminium die-cast component as a false color image.
Temperature field of a solidifying aluminium die casting component in process simulation

In the context of a student thesis the following fields of activity arise:

  • Literature review on the suitability for adhesive bonding of aluminium die-cast components, especially as a function of release agents and alloy composition
  • Execution of bonding tests on die-cast components with different suitability for adhesive bonding
  • Untersuchung der lokalen Elementverteilung und der Trennstoffbelegung
  • Execution of tensile shear tests and subsequent fracture pattern analyses for the retrospective assessment of the local suitability for adhesive bonding of components
  • Data and correlation analysis of the test results and the parameters varied during the casting of the components

amount of work

The scope of the work is scalable and therefore allows for student and master thesis. For a detailed task description, please contact the supervising research assistant. The time for familiarization is given under supervision.

Requirements

  • Independent, structured way of working
  • Interest in scientific work
  • Known requirements of the faculty for the submission of student papers

Start

as of now

Sebastian Krischke, M. Sc.
+ 49 531 391 95526
s.krischke(at)tu-braunschweig.de
Sebastian Krischke
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