Will ultrasonic welding damage the appearance of the product？

under normal process and standardized operation, ultrasonic welding will not damage the product appearance. As long as the product structure design is reasonable,

the ultrasonic mold fits precisely, and the welding parameters are adjusted properly, the surface after welding will be smooth without scratches, indentations,

whitening or material overflow, and the original texture and appearance level of the product can be well preserved.