Using Single Point Diamond Dressers
Single Point Diamond Dressers are the most common and economical tools for dressing conventional grinding wheels (aluminum oxide, silicon carbide, etc.). They use a single natural or synthetic diamond mounted in a steel shank. Here’s a practical guide on using single point diamond dressers:
Key Functions
- Truing: Restores the wheel to its concentric shape.
- Dressing: Cleans and sharpens abrasive grains.
Guidelines for Use
- Mounting & Positioning
- Mount the dresser at a 10°–15° angle from the wheel’s centerline (in both horizontal and vertical planes).
- This prevents the diamond from chipping and allows it to roll slightly, exposing a fresh cutting point.
- Depth of Cut & Feed
- Use light cuts: typically 0.001″–0.002″ per pass.
- Traverse speed across the wheel face: about 4–6 inches/min for conventional wheels.
- Coolant
- Always use coolant during dressing to reduce thermal shock and heat
- Wheel Speed
- Dress at the same speed the wheel will be used.
- Recommended surface speed for dressing: 4,500–6,000 SFPM.
- Use of the Diamond Point
- Rotate or index the tool periodically to present a new diamond facet.
- Do not use the same facet continuously—it will flat-spot and cause poor dressing.
- Tool Life Considerations
- Avoid impact or heavy cuts—diamonds are brittle.
- Do not dwell in one spot on the wheel.
- Use the full length of the wheel face to distribute wear on the diamond.
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