As indispensable abrasive tools in mechanical manufacturing, grinding wheels are utilized to grind, polish, trim workpieces and remove residual burrs. Their applicable processing materials are determined by multiple factors, including abrasive types, grain size and overall hardness. Appropriately matching grinding wheels with work materials not only optimizes processing effects, but also extends the service life of grinding tools. In industrial scenarios, grinding wheels are capable of handling most hard and rigid materials, which can be categorized into four core types.

Metallic materials represent the primary processing objects of grinding wheels, divided into ferrous and non-ferrous metals. Ferrous metals such as carbon steel, stainless steel and cast iron are best processed by aluminum oxide grinding wheels. Boasting superior toughness and fracture resistance, these wheels suit daily rough grinding and fine surface finishing. For ultra-hard alloys like tungsten steel and high-speed steel, diamond or cubic boron nitride grinding wheels are essential. As for ductile non-ferrous metals including copper and aluminum, large-grain grinding wheels are preferred to stop soft metal debris from clogging wheel pores.

Besides metals, grinding wheels work well with non-metallic mineral materials. Silicon carbide grinding wheels serve as the optimal choice for this category. They are widely used to process natural stones like granite and marble for architectural decoration, accomplishing surface smoothing and edge shaping. Additionally, rigid industrial minerals such as quartz and feldspar can also be refined with customized grinding wheels to satisfy diverse industrial production requirements.

Brittle materials covering industrial ceramics and various glass products are also within its application range. These fragile materials are prone to crack under uneven force, so green silicon carbide wheels are adopted for fine grinding, cutting and chamfering without damaging workpiece structures. Furthermore, modern grinding wheels can process multiple composite materials, such as carbon fiber and resin-based composites. Operators need to adjust wheel hardness and grain size according to composite features to avoid layered damage. Nevertheless, grinding wheels are unfit for ultra-soft materials like rubber, as such substances will adhere to wheels and cause tool failure.