What About Ultrasonic Cleaning Of Carbide Milling Insert?

Ultrasonic cleaning of carbide milling insert

With the maturity and improvement of ultrasonic cleaning technology, ultrasonic cleaning technology is also applied to the cleaning of cemented carbide products. Its advantage is that it can not only clean the outer and inner surfaces of the alloy matrix, but also clean all kinds of oil stains, stains, powders and other sundries in the more complex parts, cavities, pores and gaps of the alloy products. The cleaning efficiency can reach more than 95%. The appearance of the cleaning products is bright and clean, which has become the highest cleaning efficiency The best cleaning method. However, for different types of cemented carbide products, cutting tools, geological and mineral alloys and precision parts, in order to ensure the cleaning effect, the specific ultrasonic cleaning processes and methods are different.

Ultrasonic wave is a kind of dense vibration wave, which propagates in the medium through mechanical oscillation. The sound wave with vibration frequency more than 20kHz is called ultrasonic wave. During ultrasonic cleaning, the vibration wave and mechanical vibration make the cleaning liquid vibrate alternately, producing tens of thousands of negative and positive pressures per second, which makes the liquid constantly and frequently stretched and compressed, and the liquid vibrates to produce tens of thousands of micron bubbles and vacuoles. These tiny bubbles oscillate and grow rapidly in ultrasonic negative pressure, and shrink rapidly in positive pressure until rupture. At the moment of rupture, a shock wave with a high temperature of nearly 4000 ℃ and thousands of pressures is formed in a very small space. With the micro jet with a speed of up to 110m / s, it constantly washes the surface of the cleaned workpiece, producing the "ultrasonic cavitation" effect. The dirt layer is stripped off, dispersed and fallen off under the action of the frequent and continuous shock wave of small bubbles, so as to achieve the purpose of cleaning the surface of the cleaned workpiece.

The milling insert alloy product is immersed in the ultrasonic cleaning tank. Under the action of ultrasonic, there are a large number of micro bubbles on the inner and outer surfaces of the milling insert product and the hole gap in the cleaning solution. These micro bubbles continue to vibrate and grow, shrink and rupture, and produce strong high-efficiency shock wave and high-speed micro jet at the moment of bubble rupture, which repeatedly impact the dirt layer on the inner and outer surfaces of the milling insert product, Weaken the adsorption of the boundary dirt layer. Under this repeated and frequent impact, the dirt layer on the product surface is rapidly decomposed, broken, and automatically peeled off from the internal and external surfaces of the product, pores and gaps, and quickly dispersed into the cleaning liquid. At the same time, ultrasonic shock wave can also accelerate the decomposition and emulsification effect of oil, dirt and other particles and strengthen the dissolution effect of the cleaning liquid.