Lecture
This lecture covers various polymer welding techniques, including hot plate welding, hot air welding, resistance welding, vibrational welding, ultrasonic welding, laser welding, and high-frequency welding. The slides explain the principles behind each technique, the materials they are suitable for, and the advantages and disadvantages of each method. The lecture emphasizes the importance of selecting the right welding technique based on the type of polymer being used and the desired joint properties.