Analyze the technical parameters of diamond grinding wheels

Analyze the technical parameters of diamond grinding wheel 

Core Tip: Diamond Wheel Size Diamond Wheel Concentration Diamond Wheel Bonding Agent

1. Synthetic diamond, also known as “industrial diamond”, is the hardest substance in nature known today, like natural diamond. Due to its high hardness, compressive strength and wear resistance, acid and alkali resistance, and good thermal conductivity and semiconductor properties, it can be widely used in metallurgy, machinery, geology, petroleum. , electronics, optics, construction, stone and other fields.

2. Synthetic diamond grinding wheel is a synthetic diamond product with artificial diamond as the main raw material and other metal powders formed by high temperature and high pressure. It can be widely used in the grinding of hard alloys, non-ferrous metals and non-metals.

3, particle size selection

    The thickness of the synthetic diamond particle size is indicated by the particle size number. The thickness of the particle size directly affects the surface roughness of the workpiece, the grinding efficiency and the wear loss of the tool. The choice of particle size in principle is to select the coarsest possible particle size under the conditions that meet the requirements of the workpiece, which can improve the grinding efficiency and reduce the loss of the grinding tool. (See table below) Diamond particle size is generally divided into 30# to W1.

Diamond wheel size selection

Particle size refers to the degree of discrimination between the thickness of the abrasive. According to the size of the abrasive, the abrasive is divided into 33 models:

    35/40, 40/45, 45/50, 50/60, 60/70, 70/80, 80/100, 100/120, 120/140, 140/170, 170/200200/230, 230/270, 270/325, 325/400, 36-54, 22- 36, 20-30, 12-22, 10-20, 8-12, 6-12, 5-10, 4-8, 3-6, 2.5-5, 2-4, 1.5-3, 0-2, The choice of 0.5-1.5, 0.5-1, 0-0.5, 0-1, 0-0.5 abrasive grain size directly affects the roughness and grinding efficiency of the workpiece. In general, the particle size is fine, the roughness of the workpiece is small (ie, the finish is high); the grain size is coarse, and the workpiece grinding amount is large. Therefore, under the premise of satisfying the roughness, a coarser-grained abrasive tool is used as much as possible.

4, the choice of bonding agent

    Synthetic diamond grinding wheels are generally classified into resin grinding wheels, metal grinding wheels, ceramic grinding wheels and electroplated grinding wheels according to the different bonding agents. Different binders have different properties, and suitable binders should be selected according to different processing objects and requirements.

Different bonding agent diamond grinding wheel

5, concentration selection

   Concentration refers to the content of synthetic diamond in the abrasive layer of the abrasive. 1 resin bond grinding wheel generally uses 50%-100% concentration; most of them use 75%, when the finish is higher than 75%, the grinding wheel and the longer service life of the grinding wheel can be 100% or more. . 2 The metal bond product generally adopts a concentration of 25%-150%; wherein the coarse-grained cutting saw blade generally has a lower concentration, that is, 25-50%, and the fine particle size is higher; and other metal bond grinding wheels generally require concentration. To be 50%-100% concentration. In general, coarse grinding uses higher concentrations, semi-finishing uses medium concentrations, and fine grinding, polishing, etc. uses higher concentrations.