Advantage

High machining accuracy: It can achieve high dimensional accuracy, shape accuracy, and position accuracy. The dimensional accuracy can reach ±0.01mm or even higher, and the surface roughness can reach Ra0.8 - Ra0.2μm, which can meet the machining requirements of various precision parts.

Wide range of machinable materials: It can machine materials of various hardness levels, including materials that are difficult to cut, such as quenched steel, cemented carbide, and ceramics. For high-hardness materials, grinding is the main machining method.

Good surface quality of the machined surface: The surface after grinding has a low roughness and good surface integrity, which can effectively improve the wear resistance, corrosion resistance, and fatigue strength of the parts.

Ability to machine complex shapes: By using grinding wheels of different shapes and grinding processes, it can machine parts of various shapes, such as external circles, internal circles, planes, and formed surfaces. It can also machine special profiles such as gears, threads, and splines. 

limitation

Relatively low machining efficiency: During grinding, the contact area between the grinding wheel and the workpiece is large, and the cutting force and cutting heat are concentrated, resulting in rapid wear of the grinding wheel. It is necessary to frequently dress and replace the grinding wheel. The feed rate and cutting speed during the machining process are relatively low. Therefore, the machining efficiency is not as high as that of machining methods such as turning and milling.

Higher machining cost: The cost of the grinding wheel is relatively high, and grinding requires the use of specialized grinding machine equipment. The price of the equipment is expensive, and the maintenance cost is also high. In addition, a large amount of cutting fluid is required during the grinding process, which increases the machining cost and the difficulty of environmental protection treatment.

Certain requirements for the part structure: During grinding, the grinding wheel needs sufficient space for grinding. For some parts with complex structures and narrow internal cavities, grinding may be difficult to carry out. At the same time, grinding has relatively high requirements for the uniformity of the material hardness of the parts. Otherwise, it will affect the machining accuracy and surface quality.