How to Choose Between Diamond Wheels and CBN Wheels?
Grinding wheel abrasives can be categorized into general and super types, with diamond and CBN belonging to the super abrasives due to their extremely high hardness, making them suitable for grinding high-hardness materials. Diamond wheels should not be used on iron-containing workpieces, as they can catalyze the transformation of diamond into graphite, affecting performance and wearing down the wheel. When grinding temperatures exceed 600°C, diamonds are prone to melting or forming carbides, making them unsuitable for high-temperature processing. In contrast, CBN wheels are suitable for high-speed and iron-containing material processing, such as tool steel and mold steel, showcasing their unique advantages. With the advancements in technology raising precision requirements in manufacturing processes, selecting the most suitable grinding wheel is crucial. The most expensive option is not necessarily the best; rather, the most appropriate one is the optimal choice.