Product properties of grinding wheels

Grinding wheels are round bonded abrasive tools with a through hole in the center made of abrasives and binders. The characteristics of grinding wheels are determined by factors such as abrasives, grain size, hardness, binders, shape and size, which are introduced below. [2]
Selection of abrasives

Abrasives are the main raw materials for manufacturing grinding wheels, and they are responsible for cutting. Therefore, abrasives must be sharp and have high hardness, good heat resistance and certain toughness. [2]
Grit size and its selection

Refers to the size of abrasive particles. Grain size is divided into two categories: abrasive particles and micro powder. Abrasives with a particle size greater than 40μm are called abrasive particles. When grading by screening method, the particle size number is expressed by the number of holes per inch of the sieve through which the abrasive particles pass. For example, 60# abrasive particles mean that their size can just pass through a sieve with 60 holes per inch. Abrasives with a particle size less than 40μm are called micro powder. When grading by microscopic measurement method, W and the number after it represent the particle size number, and the value after W represents the actual size of the micro powder. For example, W20 means the actual size of the micro powder is 20 μm.