flat abrasive cutting disc concentration

  • Concentration is a characteristic of super abrasives and refers to the quality of superabrasives contained per cubic centimeter of volume in the abrasive layer. 1. The relationship between concentration and content: Internationally, the unit volume contains 0.88 g of super-hard abrasive with a concentration of 100%. For each increase or decrease of 0.22G, the concentration increases or decreases by 25%. The concentration has a significant impact on the grinding efficiency of the 14 inches cutting disc and the processing cost of the process (proportional, content increase and decrease, concentration increase and decrease). As long as the abrasive tools are: resin bond abrasives, metal bond abrasives, ceramic bond abrasives, and electroplated abrasives. 2. The relationship between concentration and binder: Different kinds of binders have different optimal concentration ranges due to their different binding abilities. The higher the strength of the binder, the higher the concentration range. The shape and processing method of the abrasive tool also have an influence on the concentration selection. In the same volume of the abrasive tool, the abrasive volume accounts for more, and there are more flat abrasive cutting disc for cutting the workpiece during grinding. For the working face width, especially for the forming grinding method that requires the shape accuracy of the grinding tool, the groove grinding of the end grinding should select a higher concentration of the grinding tool. 3. The relationship between concentration and grinding efficiency: If the concentration is too high, many abrasives tend to fall off prematurely, resulting in the waste of abrasives; if the concentration is too low, the grinding efficiency is lowered and the processing requirements cannot be met. 4, the choice of concentration: The choice of abrasive concentration mainly considers the type of binder, particle size, processing steps, and the shape of the abrasive. Resin bond abrasives generally choose 75-100% concentration, metal bond abrasives generally choose 75-150% concentration, diamond ceramic grinding wheels generally use 150% concentration, CBN ceramics use 200% concentration, electroplating process also generally selects 200% concentration. For the same binder, the concentration of CBN abrasives is generally slightly higher than that of diamond abrasives. The abrasive material has a finer particle size and its concentration should be lower to meet the precision grinding of fine-grained abrasive tools. To achieve low roughness requirements, such as polishing and high-precision grinding, low concentrations of resin bond abrasives are often used, with individual concentrations as low as 25%. For the rough grinding process with high processing efficiency, the coarse-grained and high-concentration grinding tools are used for grinding, which can better meet the processing efficiency and process requirements.