Interaction mechanisms between beam and workpiece in laser beam joining

Qualification goals

After completing this module, the students are able to name basic characteristics of geometric optics and to assess the relevance of these characteristics for laser material processing. The students can qualitatively describe the basic physical processes involved in the absorption of laser radiation and apply them to technical surfaces. In addition, the students are able to describe the interaction of laser radiation with matter. Furthermore, they will be able to name the interaction mechanisms when joining with laser radiation and to explain their functionality qualitatively. The students also learn basic modeling models for the description of coupling processes. The students can derive the relevance of these manufacturing processes based on numerous application examples from research and industrial application and, after completing the module, are able to understand and describe the interaction mechanisms between beam and workpiece when joining by means of laser radiation and to transfer them to industrially relevant issues.

Content

Teaching and deepening of the basics of the following topics of materials testing:

Basics of geometric optics

• Physical basics of Absorption
• Absorption at technical surfaces
• Heat conduction welding processes
• Modelling of coupling processes

Lecture notes & Downloads

Lecture notes are available to participants via StudIP.

Literature

• Gladush, Gennady G. / Smurov, Igor (2011): Physics of Laser Materials Processing. Theory and Experiment - Berlin Heidelberg (Springer Science & Business Media)
• Eichler, Hans Joachim / Eichler, Jürgen / Lux, Oliver (2018): Lasers. Basics, Advances and Applications. Berlin, Heidelberg (Springer)
• Dowden, John (2009): The Theory of Laser Materials Processing. Heat and Mass Transfer in Modern Technology. Berlin Heidelberg (Springer Science & Business Media).

Module Manual

Only the information in the module manual applies. In addition, only the information in the examination regulations of the respective course of study is legally binding.