What are white grinding wheels used for?
White wheels are ideal for the general purpose grinding of ferrous metals but they are particularly suited for the sharpening of cutting tools such as chisels and plane irons. These wheels help keep your tools cooler to avoid overheating and weakening the cutting edge.
What is the most aggressive grinding wheel?
Diamond and CBN grinding wheels are the most aggressive grinding wheels on the market right now. Both provide dominant performance due to their high stock removal rates and ability to grind the most difficult materials.
What grit size is used for rough grinding?
An abrasive grit size of 180-240 [P180-P280] is coarse enough to use on specimen surfaces sectioned by an abrasive wheel. Hack-sawed, bandsawed, or other rough surfaces usually require abrasive grit sizes in the range of 120-180 grit [P120-P180}.
What is grit number in grinding wheel?
Grit refers to the size of the abrasive particles embedded in the wheel—a coarse 10 grit wheel uses abrasive particles that were sifted through a screen with ten holes per linear inch, whereas a 120 grit wheel uses finer abrasive particles that have been passed through a screen with 120 holes per inch.
What is a CBN grinding wheel?
What is a CBN Grinding Wheel? A CBN wheel is made from cubic boron nitride. This material is one of the hardest materials available, second only to diamonds. The main feature of the material is that it features a high abrasion resistance and thermal conductivity that maintains its sharp cutting edges.
What are cup wheels used for?
One of the most familiar applications of Grinding Cup Wheels is to polish stone or concrete. But with a small enough grit, cup wheels can take on delicate jobs like paint and adhesive removal. Cup wheels are often used for re-sharpening and finishing for some applications depending on abrasive size.
How do you choose grit size?
Use this rough-and-ready formula to calculate an approximate grit size: grit mesh number = 1,500 ÷ [desired surface finish in microinches Ra to the 0.77 power]. For example, if the required surface finish is 8µin. Ra, you ‘ll need a grit mesh number of 302.5 (1,500 ÷ 80.77), or 300.
What is grit size?
Grit size refers to the specific size of the abrasive grain (36, 60, 120, etc.), while grade is a broader term, with each grade including a range of grits. For example, medium grade includes grit sizes between 80 and 150.
What are white grinding wheels made of?
granulated aluminum oxide
Made of granulated aluminum oxide with a vitrified white bond, they allow the grains of abrasive to wear off, thus providing a consistently fresh grinding surface. Sharpening is faster, with less danger of taking the temper out of the tool.