The sharpening process is a sharp process of sharpening the abrasive grains of the super-hard abrasive cutting piece. In this process, it is necessary to remove the binder between the abrasive grains and the blunt cutting blade abrasive grains, so that the abrasive grains having strong grinding properties protrude from the bonding agent to form a sharp cutting edge. The sharpening must also remove the minute material from the pores on the surface of the cutting piece to prevent the grinding force acting on the customized metal cutting disc from increasing, and the grinding force on the cutting piece is increased, which will cause vibration and cause surface burn of the part.

Without proper sharpening, even the best cutting blades are not likely to achieve high quality and dimensional consistency of the machined parts. In fact, when you invest in high-quality cutting blades, it is very important to trim them well in order to achieve high grinding performance.

Shaping can be said to be part of the preparation of the cutting piece, which is carried out simultaneously with the sharpening of the ordinary cutting piece. For superabrasive cutting dicing, the two processes are performed separately, first shaping the dicing sheet. In the use of superabrasive cutting disc grinding, shaping is performed using a shaping tool or a roller. The sharpening is often a trimming rod using a ceramic bond. After the shaping is completed, the cutting piece is sharpened.

Before the cutting piece includes shaping and sharpening, it is important to ensure that the spindle bearing is at a certain temperature (such as the normal cutting blade grinding state). This avoids damage to the geometry of the part and the abnormal wear of the cutting blades and dressing tools. Care must be taken with the tool for dressing, as it is generally made of a hard, wear-resistant but brittle diamond material and is very sensitive to minor cracks and crushing caused by slight impacts.

Since the diamond shaper itself is a tool, it needs to be very sharp. Using a blunt finisher to trim the surface of the cut piece will make the cut piece dull. In order to maintain a high quality and sharp diamond dressing tool, it is necessary to rotate a single point or a tapered tip dressing tool at 1/8 turn at regular intervals. The number of rotations can be determined according to the trimming situation, and according to experience, it is rotated at least once a day. For chisel heads and shaped dressing tools, it is generally necessary to rotate 180° before they are blunt.

Most cylindrical grinders place parts and cut pieces on a horizontal line. The highest point of the outer circle of the part and the highest point of the outer circle of the cutting piece are called part/cutting piece contact points, and the diamond dressing tool should trim the cutting piece as close as possible to the contact point of the part/cutting piece. For cutting inserts for internal grinding machines, it is even more important to trim the diamond dressing tool near the highest point of the outer circle of the cutting piece (ie, the part/cutting piece contact point when grinding holes).