Views: 124 Author: Site Editor Publish Time: 2022-07-26 Origin: Site
In our industrial production and daily life, tungsten alloy ball has a lot of important influence on us and is widely used in various fields. So the current status of tungsten alloy ball grinding and processing methods are roughly divided into several categories, what are they? Let's take a look.
The following is a list of contents:
l Traditional grinding methods
l Magnetic and non-magnetic fluid grinding methods
l High precision grinding methods
The conventional grinding method for tungsten alloy balls is generally based on single V-groove, double V-groove, or tapered discs; in the V-groove grinding method, the value of the rotation angle depends only on the diameter of the ball blank and the groove of the lower grinding disc. This is not conducive to the rapid and uniform grinding of the surface of the billet, which limits the improvement of the sphericity accuracy and processing efficiency.
If the tungsten alloy ball is ground by the conical disc grinding method, the ball billet has a larger rotation angle of about 45 degrees during the grinding process, which enhances the rotary sliding of the ball billet and improves the ball processing efficiency. However, the rotation angle in this grinding method is also a fixed value, and the grinding traces are similar to the V-groove grinding method, which is also a set of coaxial circles. This limits the rapid correction of sphericity deviation of the balls to be machined.
To achieve high-speed grinding of ceramic balls, a "flexible" magnetic fluid grinding method with a high material removal rate has been proposed, which has been improved to significantly increase the efficiency of precision tungsten alloy balls. This method uses a magnetic fluid mixed with abrasive particles as the abrasive, and when the magnetic fluid is given a magnetic field, the magnetic fluid generates an upward thrust and applies a processing load to the ceramic ball through the floating disk. However, the complex structure of the magnetic fluid grinding method is not suitable for processing large batches of high-precision tungsten carbide balls.
This led to the proposal of a non-magnetic fluid grinding method for tungsten alloy balls, in which a cheap, viscous, non-magnetic fluid, such as a mixture of water and glycerin, is used instead of a magnetic fluid, and a spring is used to generate an adaptive support force, and a diamond grinding wheel with a resin bond is used instead of an abrasive disc embedded with free abrasive grains. The processing efficiency of the non-magnetic fluid grinding method is more than ten to several dozen times that of the conventional grinding processing method and is comparable to that of the magnetic fluid grinding method, which can maintain smooth material removal during processing, with the downside that its processing accuracy is yet to be improved.
The high precision grinding method of tungsten alloy balls generally adopts the active control grinding method of rotation angle, which is to divide the lower grinding disc from the V-groove grinding method, so that the whole machine consists of three independently rotatable grinding discs, and the rotation angle of the ball blank is adjusted by controlling the change of the rotation speed of the three grinding discs. By adjusting the rotational speed of the three grinding discs, the billet can make a grinding motion with changing orientation relative to the spin axis. The grinding track line is a spatial spherical curve with the axis of rotation of the billet, which can cover the whole surface of the billet evenly and is conducive to the uniform and efficient grinding of the billet surface. However, the uneven wear of the tungsten carbide ball on the groove is the reason why the machining accuracy of the tungsten alloy ball is affected to some extent.
Above is the information about the current status of the tungsten alloy ball grinding processing method. If you are interested in tungsten alloy balls, tungsten spheres, or other cemented carbides, you can contact us. Our company focuses on the development of cemented carbide, mining machinery, engineering tools, auto parts, new energy, leisure sports equipment, and other our company focuses on the development of cemented carbide, mining machinery, engineering tools, auto parts, new energy, leisure sports equipment, and other industries. Our website is https://www.7jinxin.com/. We are very much looking forward to your arrival and hope to cooperate with you.
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