Welcome to forturetools,I’m Brian.Today we are going to talk about”Five characteristics of a grinding wheel you have to know”

In order to select the best grinding wheels,you have to know their characteristics.

There are five characteristics of a grinding wheel: material, grain size, wheel grade, grain spacing, and bond type. They are indicated by codes on the wheel’s label.

1,Material and shortcode
Aluminum oxide (A)
Silicon carbide (S)
Diamond (D, MD, SD)
Cubic boron nitride (CBN)

grinding wheels bondGrinding wheels with diamond or CBN grains are called superabrasives. Grinding wheels with aluminum oxide (corundum), silicon carbide, or ceramic grains are called conventional abrasives.

2, grain size

grinding wheels roughnessFrom coarse grit to fine grit,the smaller the number is,the rougher;the larger,the finer.

3, Wheel grade
From A to Z, A is the softest grade and Z is the hardest grade.
grinding wheels' hardness graddetermines how tightly the bond holds the abrasive. A to H for softer structure, I to P for moderately hard structure and Q to Z for hard structure. Grade affects almost all considerations of grinding, such as wheel speed, coolant flow, maximum and minimum feed rates, and grinding depth.

Hardness testing can use testing equipment,if you want to compare two grinding wheels hardness,you can use one grind another one,the ones which abrasive grains was separated from the wheel,it is the softer ones.

4,Grain spacing
Spacing or structure, from 1 (densest) to 16 (least dense).

grain space comparison

5,Wheel bond
Wheel bond are the material used for holding the abrasives; affects finish, coolant, and minimum/maximum wheel speed.
Vitrified(short code V),Resinoid(short code B),Rubber(short code R),Metal(short code M),Plated(short code P)

metal bond grinding wheels Resin-bond super abrasive wheels Vitrified-bond grinding wheels plated bond grinding wheels Rubber bond grinding wheels resin bond grinding wheelsNeed more help, please visit www.forturetools.com

Need this or other customized grinding tools,feel free to contact.
Brand:forturetools web: http://www.forturetools.com
Main Products:grinding wheels/other abrasive tools
Contact:Mr.Brian zhao
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