Ultrasonic mold damage is mainly caused by two aspects. The first is because the design of the ultrasonic mold is unreasonable, and the second is because of the choice of materials. The detailed reasons are introduced as follows.

First: The design of the ultrasonic mold is unreasonable, the fine workmanship does not reach the optimal frequency, and the ultrasonic energy is not completely released during the use process such as frequency shaping, and most of the ultrasonic energy is still trapped in the ultrasonic mold.

With the passage of time, the mold will be welded during use, and the mold will be heated to the back of the mold, and the phenomenon of cracks must be resolved. First of all, to choose a more professional manufacturer to make ultrasonic molds.

The manufacturing experience of the ultrasonic welding machine definitely accounts for more than half of the success or failure. Then there are masters in the production to make it according to the design. If there are multiple frequencies to make the mold reach the best condition, the ultrasonic mold production and processing workshop.

Second: The choice of materials for ultrasonic molds. Generally, there are three main materials most commonly used for ultrasonic mold making: steel, magnesium, aluminum alloy, and titanium alloy, which are very different from magnesium alloy. Generally, imported 7075 aluminum alloy is selected, which is wear-resistant, corrosion-resistant and has good mechanical properties. The hardness is slightly higher.

Compared with other aluminum alloys, it is the material of choice for ultrasonic molds, and is relatively expensive, and is generally used for aircraft structures.

Secondly. 6061 has low density, good corrosion resistance, and good comprehensive mechanical and cutting performance at room temperature. Steel molds and titanium alloy molds are mostly used to make relatively simple molds. Because of their high hardness and difficulty in cutting, they are generally used to make relatively flat molds. Among these three materials, titanium alloy has the highest service life, almost no cracks, and the price is the most expensive of the three materials.