Abrasive Machining - Abrasives


The most important property of an abrasive is its hardness. For abrasive grains to effectively cut, they must be significantly harder than the workpiece material. They can be grouped based on their hardness into two categories: conventional abrasives and superabrasives.

Conventional abrasive materials have been used by man since the advent of machining. They are made of materials that exist naturally on Earth, and they are abundant and cheap. Conventional abrasives can suitably machine most materials.

Superabrasives are much harder than conventional abrasives. Since they are much more expensive, they are used when conventional abrasives will not suffice.

Common abrasives are listed below.

Read more about this topic:  Abrasive Machining

Other articles related to "abrasive, abrasives":

Coated Abrasive
... A coated abrasive is an abrasive grain bonded to a flexible substrate using adhesives ... The international standard for coated abrasives is ISO 6344 ... Sandpaper and emery cloth are coated abrasives for hand use, usually non-precision ...
Manufactured Abrasives - Other Abrasives and Their Uses
... Dry ice will sublimate leaving behind no residual abrasive ... Cutting compound used on automotive paint is an example of an abrasive suspended in a liquid, paste or wax, as are some polishing liquids for silverware and optical media ... The liquid, paste or wax acts as a binding agent that keeps the abrasive attached to the cloth which is used to as a backing to move the abrasive across the workpiece ...
Superfinishing - Process - Abrasives
... Common abrasives used for superfinishing include aluminum oxide, silicon carbide, cubic boron nitride (CBN) and diamond ... Note that graphite may be mixed with other abrasives to add lubricity and to enhance the appearance of the finish ... Abrasive grains must be very fine to be used with superfinishing usually 5–8 μm ...
Stone Carving Considerations
... Limestones and marbles can be worked using abrasives and simple iron tools ... carbide tipped tools are used, although abrasives still work well ... Modern techniques often use abrasives attached to machine tools to cut the stone ...
Abrasive Blasting - Media
... Silica sand can be used as a type of mineral abrasive ... Using silica as an abrasive is not allowed in Germany, United Kingdom, Sweden, or Belgium for this reason ... Another common mineral abrasive is garnet ...