Grinding wheel
The manufacture of these wheels is a precise and tightly controlled process, due not only to the inherent safety risks of a spinning disc, but also the composition and uniformity required to prevent that disc from exploding due to the high stresses produced on rotation.
Grinding wheels are consumables, although the life span can vary widely depending on the use case, from less than a day to many years.
As the wheel cuts, it periodically releases individual grains of abrasive, typically because they grow dull and the increased drag pulls them out of the bond.
For example, because carbon alloys with iron, silicon carbide is not suitable for use with iron-based metals like steel.
[citation needed] Grinding wheels with diamond or CBN grains are called superabrasives.
Grinding wheels with aluminum oxide (corundum), silicon carbide, or ceramic grains are called conventional abrasives.
From 10 (coarsest) to 600 (finest), determines the average physical size of the abrasive grains in the wheel.
Cylinder wheels provide a large, wide surface with no center mounting support (hollow).
They are used for grinding extremely hard materials such as carbide cutting tips, gemstones or concrete.
Resin and vitrified bonded mounted points with conventional grains are used for deburring applications, especially in the foundry industry.
Ceramic mounted points: granular sand (usually corundum, white jade, chrome corundum, silicon carbide) made of ceramic binder sintering, the central supplemented by metal handle.
sandpaper mounted points: Multi-piece rectangular sand cloth, bonding around the metal handle.
They are often used in the construction industry for cutting reinforcement bars (rebar), protruding bolts or anything that needs quick removal or trimming.
The paper blotter shown in the images is intended to distribute this clamping force evenly across the wheels surface.
Since a break or failure of the grinding tool can present a severe hazard to people and machinery due to the high levels of energy released, high standards are placed on the mechanical and breaking strength of grinding tools in the European safety standards.
