Norton Charger Long Life Large Diameter Reinforced Abrasive Cut-off Wheel, Type 1 Flat, Zirconia Alumina and Aluminum Oxide, 1" Arbor, 20" Diameter x 5/32" Thickness (Pack of 1) Reviews
Norton Charger Long Life Large Diameter Reinforced Abrasive Cut-off Wheel, Type 1 Flat, Zirconia Alumina and Aluminum Oxide, 1" Arbor, 20" Diameter x 5/32" Thickness (Pack of 1) Feature
- Zirconia alumina and aluminum oxide for up to twice the life of aluminum oxide wheels
- Type 1 wheels are straight (also called flat) cut-off wheels, and are used for peripheral grinding
- Long Life wheels use a harder binder than the Free Cut wheel, for use on high-powered machines or when cutting off softer materials like brass
- Reinforced design helps provide safety, strength, and straight cuts
- Resin bonds soften under the heat of grinding, releasing dulled abrasive grains
Norton Charger Type 1 Long Life wheels are used for small cross-section workpieces, like pipe. The side reinforcement reduces breakage and helps provide straight cuts. Large diameter cutoff wheels use durable, versatile aluminum oxide and are intended for use with stationary saws. Run the cut-off machine at the highest possible speed marked on the wheel.
Reinforced cutoff wheels are designed to resist breakage caused by severe cross-bending and are required on any operation where the work is not securely clamped. Resin bonds are organic bonds that soften under the heat of grinding, releasing dulled abrasive grains. Because of its forgiving nature, only an organic type bond is used in cutoff wheels. The resin-bonded wheel is more resilient than a vitrified wheel. The manufacturing term for a resin bond wheel is "cured," meaning the wheel has been heated to less than 500 degrees F. Straight (also called flat) wheels are the most common grinding wheel shape. Straight wheels are used for grinding on the periphery, or outside boundary edge, of the wheel and produce a slightly concave surface, called hollow ground, on the workpiece. These wheels can be used for cutting off, tool grinding (between centers or centerless), and removing mold marks and sand from castings, among others. They are frequently used with grinding machines. Using a harder grade wheel increases wheel life but also increases burn and requires more power, and decreases cut rate. Burn is the effect on a workpiece from thermal stress as abrasive cuts or rubs material away. The damage ranges from discoloration to cracking of the workpiece.
Aluminum oxide is a widely used and versatile abrasive material. It is a tough, fracture- and wear-resistant grit that works well with a broad range of materials, from metals to wood. Aluminum oxide is more durable than silicon carbide and often used for material removal and finishing. Zirconia alumina is a self-sharpening abrasive that allows for a faster cut rate and longer life than aluminum oxide, due to its ability to fracture and refracture, creating new cutting edges. Zirconia alumina is often used for high stock removal on metals and wood.
Abrasives are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse and are used for removing excess material and shaping a part. High grit numbers like 400 are fine and help to create a smooth surface finish.
Norton Abrasives manufactures a wide variety of sanding, grinding, and polishing abrasives, and has been located in the United States since 1885. In 1990, Saint-Gobain purchased Norton, keeping its manufacturing facilities and offices in the same location. Norton/Saint-Gobain has been recognized as a Global 100 Sustainable Company, as well as earning ISO 9000 and 1401 certification for quality and environmental management standards.
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Sep 03, 2011 19:46:04
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