After ultrasonic welding, how to deal with the scar (broken, cracked, scalded)?

1. Reduce the pressure.

2. Reduce the delay time (early vibration).

3. Reduce welding time.

4. Use medium cover (such as PE bag, protective film, etc.).

5. Surface treatment (hardening or chrome plating) of die fixture.

6. Reduce the number of machine sections or the expansion ratio of upper die.

7. For products that are easy to crack or break, the fixture should be made into buffer, such as soft resin or covered cork (this item does not affect the welding strength).

8. Add R angle to the right angle of easy to break products.