How to repair a broken ultrasonic tool head?

1. Surface scratch treatment
Minor scratches: Minor surface scratches usually do not affect the normal use of the ultrasonic tool head.
Severe scratches: If the scratches are deep, it may affect the propagation and focusing effect of the ultrasonic wave, and then affect the working performance of the tool head. At this time, you can consider grinding and polishing the scratches to restore the surface finish and ultrasonic propagation performance of the tool head.

2. Wear repair
Minor wear: For slightly worn ultrasonic tool heads, you can grind them on coarse sandpaper to keep the contact surface of the tool head parallel to the workpiece. After rough processing, use water sandpaper for fine grinding to ensure smoothness and coupling.
Severe wear: If the tool head is severely worn, it is necessary to grind off the excess part on the grinding machine to ensure that the working surface is parallel to the upper plane (the chip should not be exposed). Then use coarse and fine sandpaper to grind to ensure smoothness. For the wedge part made of plexiglass, plexiglass plates can be used for repair to ensure that its surface is smooth and scratch-free. Use chloroform to bond the ultrasonic tool head to the plexiglass plate, and trim off the excess part after drying.