- White, friable, abrasive grain
- Cool and burn-free cutting; ideal for heat-sensitive applications with light to moderate feed rates
- Consistent quality
- Excellent balance and dimensional accuracy time after time
- Versatile; ideal for use across a broad variety of tool steels
NORPOR Wheels – High porosity for heat-sensitive applications
- NORPOR 38A — White, most friable, aluminum oxide abrasive with VP2 porous bond is exceptionally cool cutting in light pressure grinding applications, or heat-sensitive applications
- Controlled porosity bond for increased chip clearance and maximum coolant flow, reduced loading, and cool cutting - wet or dry - in heat sensitive applications
- Durable bond post for maximum grain retention
- Less dressing; longer wheel life
- Maximum depth of cut for increased grain efficiency; consistent grinding action at high metal removal rates
Please see the Norton Catalog - Vitrified Toolroom Wheels PDF file, located in Related Documents in the right hand navigation column of this page, for complete list of specifications for this product. Choose specific PDF by wheel type.
A:
- Use VBE/V/VS/VK bonds for general purpose applications or medium contact areas.
- Use VBEP/VS, VCP, VP2 bonds on wide contact areas where heat is an issue.
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Single Point Diamond Tools
- Rigidly mount Single Point tools at a 10°-15° angle to the wheel centerline with a line drawn through the center of the wheel, pointing in the direction of wheel travel.
- Point of contact should be slightly below centerline of wheel.
- Use coolant whenever possible.
- Normal infeed is .001" per pass.
- Lead selections range from .002" - .010" per wheel revolution.
- Rotate the tool 1/4 turn periodically to maintain a sharp point.
Multi-Point Diamond Tools
- Most multi-point tools are used for straight face dressing.
- Tool should have full face contact with the wheel.
- With new tool, 3–5 passes at .005" per pass should be taken to expose diamonds.
- Infeed per pass .001" - .002"
- Use coolant whenever possible.
- Use appropriate lead (and traverse rate).
- Contact Norton for proper tool selection for Targa wheels.
Dressing SG Ceramic Wheels
- Use our specially designed Norton SG diamond tools when dressing Norton SG ceramic wheels.
- When first using a Norton SG tool, make 3 to 5 passes at .005" infeed to ensure full face contact between the dressing tool and
wheel face. - Reduce normal dressing infeed by half. Do not exceed infeed of .002" per pass.
- The lead selection should be between .006"-.030" per wheel revolution. Faster traverse with Norton SG tools generally provides an open wheel face that can maximize productivity of the Norton ceramic abrasive.
- To optimize applications using SG cermic abrasives and/or tools, normal dressing parameters must change. Reduce infeed by 25%. Significant reductions in the amount of infeed and frequency of dress will result in substantially lower cost per part ground.