Hello Herwig, Thank you for the great and informative video. I came across a question if the Ultrasonic welding process can generate harmful chemicals that can fail Biocompatability of parts. Do you have a white paper for this? Thanks in advance
Thanks for this feedback & follow up question! Ultrasonic welding is widely used for example in plastic food packaging and in this application case, US welding is not negatively influencing the food-contact plastic grades -> www.herrmannultrasonics.com/en-us/applications/food
What about the inspection? how you can ensure the welding process is correct? do you apply a certain force on the joint?, or is just a visual inspection?
Hi, thanks for the question! There are different ways to inspect plastic welds: non-destructive and destructive methods. It depends on the requirements for the finished product which method is most suitable. Non-destructive test methods include visual inspection of the weld bead (check its dimensions and appearances), leak/pressure tests and ultrasonic testing methods. Destructive test methods include tensile strength test, bending test and the tensile impact test. Greetings,
Time stamps:
00:40 Overview welding techniques
01:50 Ultrasonic welding - working principles
05:56 Suitability of ultrasonic welding
07:35 Advantages and disadvantages
09:20 Overview joint types
12:26 Application examples
Great quick overview. Thanks for putting this together.
Thanks Will - glad to hear that! greetings
Hello Herwig, Thank you for the great and informative video. I came across a question if the Ultrasonic welding process can generate harmful chemicals that can fail Biocompatability of parts. Do you have a white paper for this? Thanks in advance
Thanks for this feedback & follow up question! Ultrasonic welding is widely used for example in plastic food packaging and in this application case, US welding is not negatively influencing the food-contact plastic grades -> www.herrmannultrasonics.com/en-us/applications/food
Thanks Herwig! All the best!
What about the inspection? how you can ensure the welding process is correct? do you apply a certain force on the joint?, or is just a visual inspection?
Hi, thanks for the question! There are different ways to inspect plastic welds: non-destructive and destructive methods.
It depends on the requirements for the finished product which method is most suitable.
Non-destructive test methods include visual inspection of the weld bead (check its dimensions and appearances), leak/pressure tests and ultrasonic testing methods.
Destructive test methods include tensile strength test, bending test and the tensile impact test.
Greetings,
@@HerwigJuster Thanks for your answer