Key factors affecting speed of the grinding wheel

一：The bottom line of safety—a "high-voltage line" that must not be touched

1. First, consider the "safe peripheral speed" of the grinding wheel itself, which is the most critical safety parameter. For example, "80 m/s" means the linear speed at the edge of the grinding wheel must not exceed 80 meters per second. Exceeding this limit can cause the wheel to shatter due to excessive centrifugal force, posing a severe risk.
2. Next, evaluate the machine tool's capability—each grinding machine's spindle has its own maximum achievable speed. Finally, the speed you set must be simultaneously below both the "calculated maximum speed of the grinding wheel" and the "machine tool's inherent maximum speed." Choose the lower value of the two.

二：Process Effect - How to Adjust More Appropriately in the Safety Zone

1. Rough machining: Pursuing efficiency and removing materials quickly. At this point, the speed can be slightly lower. This way, the grinding wheel wears evenly and is less likely to overheat and burn the workpiece. Precision machining: Pursuing surface smoothness and accuracy. At this point, the rotational speed can be appropriately increased. This can make cutting faster and improve surface quality.
2. Types of grinding wheels: Ordinary corundum and silicon carbide grinding wheels should be used at regular speeds. CBN or diamond grinding wheels have stronger performance and are suitable and recommended for working at higher speeds, which can leverage their efficiency advantages. Grinding wheel characteristics: For grinding wheels with high hardness and fine particle size, you can try slightly increasing the speed to maintain sharpness. For grinding wheels with soft hardness and coarse grain size, a slightly lower rotational speed can be selected to promote self sharpening.