Grinding is a machining method that removes excess material from a workpiece using abrasives and grinding wheels. It belongs to the finishing process. It primarily uses a high-speed rotating grinding wheel for cutting, achieving a machining accuracy of IT8-5 and a surface roughness at the micron level. It is suitable for machining high-hardness materials such as hardened steel and cemented carbide.
Grinding, in machining, belongs to finishing (machining is divided into roughing, finishing, heat treatment, etc.), characterized by low machining volume and high precision.
It is widely used in the machinery manufacturing industry. During grinding, carbon tool steel and carburized and quenched steel parts that have undergone heat treatment and quenching often develop numerous regularly arranged cracks-grinding cracks-on the surface that is basically perpendicular to the grinding direction. These cracks not only affect the appearance of the parts but, more importantly, directly impact their quality.