LabWork MB / MMT M.Sc. (6 LP), SuSe26

Overview of content and procedure:

Experimental and simulative investigations of turning a Steel Material

Within the scope of the laboratory (M.Sc. MB/MMT), the machining of a steel material is firstly investigated experimentally using turning tests with different cutting parameters and secondly by 2D-finite-element(FE)-chip formation simulation. The investigations of the labwork will focus on both the resulting process forces and the surface quality of the workpieces produced, which will be measured using suitable measuring devices. In addition, the chip formation, that varies depending on the cutting parameters, will be analysed.

The information relevant for the laboratory can be taken from the Moodle-room. The whole laboratory is run through in groups which are formed randomly. Please coordinate your work in the groups in good time and divide the work contents sensibly.

The practical part of the laboratory is divided into three sections. The first part includes experimental investigations on the processing of a steel material in-presence at ISF. During these turning tests, a variation of the cutting parameters is carried out. The exact dates of the experiments will be announced in the Moodle-course. Secondly, in a digital format, the inserts used, selected to specifically influence chip formation, are varied according to a given experimental plan. For all series of tests, process forces, roughness measurement as well as video recordings of the tests will be available on Moodle. In the third section, the groups perform 2D-finite-element(FE)-chip-formation simulations. For this purpose, literature and tutorial videos for setting up and executing the simulations will be provided. The objective of the numerical investigations is to represent the cutting process as realistically as possible by selecting a suitable material model and/or material parameter sets.

Prior to the execution of the experiment, it is important to have enough theoretical background. The relevant background information are provided as a script.

The final assessment consits of a 25-mintue group presentation followed by an extensive qustion-and-answer session. As part of the presentation, the provided data must be evaluated correctly from a technical perspective and prepared in a didactically approppriate manner. The objective is to present the results in a clear and comprehensible way to demonstrate a sound understand of the underlying concepts. The Q&A session comprises two main focus areas:

• questions that directly relate to the content, methodology, and results of the presentation,
• and script-specific technical questions aimed at assessing the individual understanding of the theoretical fundamentals.

Assessment criteria include, among others, technical accuracy, the quality of presentation and data preperation, the clarity and coherence of the argumentation, as well as the ability to answer questions confidently and with solid technical reasoning.

Important dates

• Registration period            01.04.2025 (09:00 AM) - 17.04.2025 (09:00 AM) / Withdrawal after registration period results 5,0 grade
• In-presence experiments    27.04 - 04.05.2025 (Aprrox. 90 minutes for each group)
• Oral presentation               06.07 - 10.07.2025 (90 to 120 minutes for each group incl. discussion)