Page 467 - NORTON cutting-off and grinding wheels - industrial

TECHNICALINFORMATION
467
TECHNICAL INFORMATION
SURFACE FINISH & GRINDING EFFICIENCY VARIABLES
SURFACE FINISH VARIABLES
Changes in any one of many factors can affect the surface finish generated by a product. The purpose of
this chart is to show the effect on surface finish by changes in single factors of product specifications.
Arrows have been used to signify the trend direction. The length of the arrows have no significance as the
effect of each variable factor will not be the same. The chart is meant to be general in nature and to show
direction or trend.
VARIABLE
FACTOR
ROUGH
HIGHER RA READING
SMOOTH SURFACE
LOWER RA READING
1. Grit Size Coarse Fine
2. C/A Product
Condition
New Used
3. Adhesive Bond Resin Resin/Glue Glue
4. Coating Method Open-Coated Close-Coated
5. Product Flex Single Linear Double Triple
6. Contact Wheel
Configuration
Serrated Smooth
7. Composition Wider Groove Width
Steel
Rubber Wider Width Canvas
8. Diameter Smaller Larger
9. Belt Speed Slower Faster
10. Grinding Aid Dry Water Oil Solubles Straight Oils Grease
11. Abrasive Mineral
Type
Zirconia
Alumina
Ceramic Aluminium
Oxide
Silicon Carbide Emery
12. Workpiece
Hardness
Softer Harder