GRAZ, Austria—Engineers at the Graz University of Technology recently developed a new process that enables adhesive-free joining of metal and wood components.

EDEN PRAIRIE, MN—Matrix Engineering Consultants and NNi Training and Consulting Inc. will be teaching a class, “Fundamentals of Threaded Fastener and Joint Design,” Oct 15-17 .

These tips can help you avoid problems with ultrasonic welding.

While the concept of ultrasonic welding is simple, the process of designing a robust joint and developing an effective weld process can be quite complex.

Ultrasonic energy has been used to join thermo-plastics for over 35 years. Ultrasonic welding of thermoplastic materials is by far the most common form of ultrasonic assembly, and is used extensively in all major industries including appliance, electronic and medical.

I have included the issue in which each column appeared so you can delve into the topic in more detail if desired. As always, please feel free to contact me with your questions, comments or observations.