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Design and testing of a device and method for the in-situ calibration of force sensors in the die casting process
  • Bachelor and Master Thesis
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    • Design and testing of a device and method for the in-situ calibration of force sensors in the die casting process
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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

Design and testing of a device and method for the in-situ calibration of force sensors in the die casting process

Background

Die casting is a common industrial process for manufacturing complex-shaped products from light metal alloys. At the end of the casting process, the components must be ejected from the mold by means of ejector pins. In this process, the ejector system influences both production reliability and the quality of the die cast components. Piezoelectric force sensors can be used to determine and investigate the forces acting on the ejector pins or on the component during ejection. These sensors must be preloaded when installed in the die casting system and then calibrated. Since the calibration device and method used so far at the Institute of Joining and Welding is prone to errors and the process is very time-consuming, there is potential for optimization here.

Task

The aim of the work is to design a device and a method for the in-situ calibration of force sensors in the die casting process. The designed device is then to be set up and tested on the die casting system. Depending on the type (bachelor's, student's or master's thesis) or scope of the work, a script for the semi-automated execution of the calibration is also to be prepared.

Experimental setup and sensor configuration for measuring ejector forces in the die casting process
Experimental setup and sensor configuration for measuring ejector forces in the die casting process

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

  • Literature research on the functional principle of charge amplifiers and piezoelectric force sensors as well as on the procedure for calibrating these sensors
  • Critical evaluation of the existing method for in-situ calibration in the die casting plant and identification of approaches for optimization
  • Conception of a new device and method for the calibration of the force sensors
  • Construction and testing of this calibration device at the die casting machine
  • Depending on the type of work: Creation of a script for the partially automated execution of the calibration

amount of work

The scope of the work is scalable and therefore allows for bachelor, 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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