The grinding wheel for processing spring is a kind of abrasive tools with resin as a binding agent. Because the components being processed are special spring steel with high hardness and high quenching degree. If the hardness of the grinding wheel is low, it will easy to break, Poor safety, and fast wear. If the hardness of grinding wheel  is high, although the grinding wheel is not easy to break, but easy to burn the workpiece, affecting the quality of the workpiece.

When mirror polishing, first use the vitrified bond diamond grinding wheel with grit 60# or less, make the grinding grains on the surface of the grinding wheel form many semi-blunt micro edges of equal height, when grinding only cut off the micro chip and the surface roughness reaches Ra0.08 ~ 0.04mm.

Honing can only change the shape accuracy of the processed workpiece. Some necessary measures should be taken to change the position accuracy of the part.If use the panel to improve the verticality of the end face of the part and the axis (the panel is installed on the stroke arm, adjust it to be perpendicular to the rotating spindle, the part can be processed by leaning on the panel).

The dressing of CBN grinding wheel can be divided into two steps: Truing and Dressing. Truing is to make the grinding wheel reach the required geometric shape and dimensional accuracy by changing its macroscopic shape of the grinding wheel, and make the grinding wheel tip finely broken to form a sharp grinding edge; Dressing is to remove the binder between the grinding grains of the grinding wheel, so that the grinding grains protrude from the surface of the binder, forming the necessary chip space so that the grinding wheel has the best grinding capacity. According to the specific situation, shaping and sharpening can be unified or completed at the same time, also can be done step by step.

When the internal grinding is performed in the inner hole, and if the diameter of the grinding wheel is too large, the contact arc between the grinding wheel and the work-piece increases. It increases the grinding heat and is difficult to cool and remove the debris. If the diameter of the grinding wheel is small, it is difficult to achieve the ideal grinding speed(30m/s-50m/s), making the grinding thickness increased, the load of the abrasive grains increased, and it is easy to be blunt, and the surface roughness of the inner hole is increased.