Page 31 - MetalForming June 2011

grain fracturing away, while ceramic- alumina abrasive is designed to microfracture. As the grains fracture,
tiny pieces are expelled to provide a continuous supply of sharp cutting edges. This translates into faster cutting
and longer wheel life.
“Grain utilization is the key per-
formance indicator,” says Long. “With
APPLICATION
ABRASIVE PRODUCTS
FORMULATIONS
Grinding
Cutoff applications
• Cutting sheetmetal
• Cutting, notching pipe
Cutoff wheels
1) Ceramic aluminum oxide and zirconia alumina blend for stainless and carbon steels, other ferrous and exotic alloys
2) Zirconia alumina for stainless and carbon steels and other nonferrous alloys 3) Aluminum oxide blend for carbon steels
Grinding
• All weld grinding
• Pipe notching, beveling • Heavy stock removal
Depressed-center grinding wheels (24 or 36 grit)
1) Ceramic aluminum oxide and zirconia alumina blend for stainless steel and other ferrous alloys
2) Mix of zirconia alumina and premium aluminum oxide grains for materials ranging from alloys and stainless steel to gray iron and nonferrous metals
3) Aluminum oxide for ferrous alloys, aluminum and other soft alloys
Blending
• Blending welds
• Medium to light stock removal
Coated abrasive flap discs (36 or 40 to 80 grit)
1a) Seeded gel ceramic aluminum oxide for stainless steel and other ferrous alloys 1b) Ceramic and zirconia blend for low pressure grinding of ferrous alloys.
2) Zirconia alumina for ferrous and nonferrous alloys
3) Aluminum oxide for ferrous metals
• Dimensioning and shaping • Heavy stock removal
Coated abrasive cloth belts (for bench stand grinders)
1) Seeded gel ceramic aluminum oxide for hard-to-grind alloys
2a) Zirconia alumina blend for exotic and heat-sensitive alloys
2b) Zirconia alumina for stainless steel
3) Aluminum oxide for general use and maintenance/repair operations
Blending the surfaces
• Deburring welds
Coated abrasive flap discs (60 or 80 grit)
1) Seeded gel ceramic aluminum oxide 2) Zirconia alumina blend
3) Aluminum oxide
• Light deburring and finishing
Resin fiber discs (80 to 120 grit)
1a) Seeded gel ceramic aluminum oxide 1b) Zirconia alumina blend
2) Ceramic zirconia blend
3) Aluminum oxide
• Blending and leveling (contours or flat surfaces)
Coated abrasive cloth discs (80 to 120 grit)
1a) Seeded gel ceramic aluminum oxide for a broad range of nonferrous applications 1b) Zirconia abrasive for fast, cool cutting
2) Zirconia alumina for stainless steel
3) Aluminum oxide
• Blending • Finishing • Polishing
Cotton fiber depressed center grinding wheels may be used for light stock removal and finishing in one operation (24 grit for blending; 36 grit for finishing)
Cotton fiber combined with abrasive and flexible bonding material is especially good for bronze, aluminum and thin sheet steel
• Surface preparation • Blending welds
Coated abrasive cloth belts (120 grit)
1) Seeded gel ceramic aluminum oxide
2a) Zirconia alumina blend for exotic and heat-sensitive alloys 2b) Zirconia alumina blend for stainless steel
3) Aluminum oxide
• Blending welds
Coated abrasive flap wheels (80 to 120 grit)
1) Seeded gel ceramic aluminum oxide 2) Aluminum oxide
• Cleaning
• Polishing
• Blending scratch patterns
Nonwoven discs specifically for surface finishing (medium, 120 grit)
2) Aluminum oxide
Creating the final finish
• Polishing • Finishing
Non-woven, surface-finishing discs (medium, 120 grit; or fine, 320 grit)
Aluminum oxide
• Weld polishing
• Cleaning
• Finishing
• Blending weld areas
on stainless steel
Surface-finishing convolute wheels (medium, 120 grit)
Silicon carbide
• Final blending • Touch-up
Depressed center grinding wheels (24 or 36 grit)
1) Aluminum oxide 2) Silicon carbide
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