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Several details should be paid attention to when operating diamond grinding wheel

Aug 06, 2021

In the process of operating and using the diamond grinding wheel, you must pay more attention to it. Usually, people often have the following major problems in the process of operating the diamond grinding wheel. Therefore, the editor summarizes the following for you, hoping to help more people understand How to operate a diamond grinding wheel and what to pay attention to when operating a diamond grinding wheel. Diamond Grinding Wheel The hardness of the diamond abrasive determines the main characteristics of the diamond grinding wheel, which can efficiently grind hard alloys, glass, ceramics and other difficult-to-machine materials, and the grinding tools have the longest service life. The diamond grinding wheel uses diamond abrasive as raw material, and uses metal powder, resin powder, ceramics and electroplated metal as binders respectively. The circular bonded abrasive tool with a through hole in the center is called diamond grinding wheel (alloy grinding wheel).


1. Side grinding: In the daily use of the grinding wheel, it is also necessary to classify the grinding wheel, but in the daily use process, many operators arbitrarily use the side of the grinding wheel for grinding regardless of the type of grinding wheel, in order to give full play to the For the role of diamond, it is necessary to try to increase the holding force of the bonding agent on the diamond and improve the bonding strength of the grinding wheel. The diamond grinding wheel uses diamond abrasive as raw material, and uses metal powder, resin powder, ceramics and electroplated metal as binders respectively. The circular bonded abrasive tool with a through hole in the center is called diamond grinding wheel (alloy grinding wheel). Single-layer high-temperature brazing super-hard abrasive grinding wheel can overcome the shortcomings of electroplating grinding wheel, and can realize chemical metallurgy (content: extraction of metal or metal compound from ore) between diamond, bond and metal matrix. Bonding strength, only need to maintain the thickness of the bonding layer at 20% to 30% of the height of the abrasive grains to firmly hold the abrasive grains in high-load, high-speed and high-efficiency grinding, so that the exposed height of the abrasive grains of the brazed grinding wheel can reach 70% ~80%, thus increasing the chip space, the grinding wheel is not easy to be blocked, and the use of abrasive is more sufficient. This is an illegal operation that seriously violates the safety operation regulations. The grinding wheel that uses the circumferential surface as the working surface according to the regulations should not use the side surface for grinding. This kind of grinding wheel has high radial strength and low axial strength. If the operator exerts too much force, the grinding wheel will be broken or even hurt people. In practice This behavior should be prohibited during the use of the .


2. Frontal operation: In daily use, many operators are always accustomed to operating in front of the grinding wheel. Sintering (the process of converting powdery materials into dense bodies) type metal bond grinding wheels are mostly made of bronze (chemical formula Cu) and other metals As a binder, it is manufactured by high temperature sintering method, which has high bonding strength, good formability, high temperature resistance, good thermal conductivity and wear resistance, long service life, and can withstand large loads. The reason is that the force can be used in this direction. In fact, this behavior is a behavior that should be specially prohibited in grinding wheel operation. According to the operating rules, when using the grinding wheel to grind the workpiece, the operator should stand on the side of the diamond grinding wheel, and must not operate on the front of the grinding wheel, so as to avoid the grinding wheel flying out or the grinding wheel breaking and flying out and hurting people when the grinding wheel fails.


3. Forced operation: In the use of grinding wheels, some operators, in recent years, with the rapid development of high-speed grinding and ultra-precision grinding technology, put forward higher requirements for grinding wheels, ceramic and resin-bonded grinding wheels It can no longer meet the needs of production. Metal-bonded diamond grinding wheels are obtained in production because of their high bonding strength, good formability, and long service life. According to different manufacturing methods, there are two types of sintering and electroplating. . Especially for young operators, in order to achieve fast grinding speed, too much force is used, which is an extremely unsafe operation behavior. The flat body of any grinding wheel has a certain strength. Doing so may cause the grinding wheel to be broken, or even fly out and hurt people, which is also a prohibited behavior.


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