Joining and forming of plastics Lecture and exercise

The joining or welding of plastics is a central process in plastics technology that enables the permanent connection of plastic parts. In many industrial applications, from the automotive industry to medical technology and packaging, joining is an indispensable step in the manufacture of stable and functional products. Various welding processes are used, such as hot plate welding, ultrasonic welding and friction welding, each of which offers specific advantages and areas of application. A sound understanding of these processes is essential for students in order to make optimum use of the properties and behavior of plastics and to develop innovative solutions for technical challenges.
Contents of the lecture
Process sequences, material properties, the associated physical principles and machine and tool technology are presented for the various joining and forming processes for plastics. Building on this, the models required to simulate the heating, cooling and stretching processes are developed. The knowledge imparted enables plastics engineers to design plastic components for joining and forming and to design the corresponding processes thermally and mechanically.
Exercise accompanying the lecture
Small group exercises accompanying the lecture put the theoretical knowledge taught into a practical context. In the IKV welding technology center, the various processes for joining plastics, such as laser transmission welding, hot plate welding or ultrasonic welding, can be demonstrated and tested in practice.
Literature for the exercise: Students registered for the course will find material to download in the RWTHmoodle learning room.

Important information at a glance
- Compulsory subject
in the Master’s degree in Plastics Technology - Compulsory elective subject
in the Master’s degree in Business Administration and Engineering specialising in Mechanical Engineering/Plastics Technology - Dates
Only in the winter semester - Scope
3 SWS (V2 Ü1) - Credit Points
5 - Form of examination
Written exam - Lecturers
Prof.-Dr.-Ing Christian Hopmann