Low Ends on work guides are deflected toward regulating wheel
If your workpieces are finishing with "low ends" (undersize at the extremities) and the guides are deflected toward the regulating wheel, the geometry of your setup needs recalibration. Our centreless grinding specialists recommend the following corrective actions to ensure your centreless grinding machine produces a perfectly linear profile.
Standard Guide Alignment
Before making angular adjustments, verify that your work guides are set perfectly parallel to the face of the abrasive grinding wheels. Misaligned guides are often the primary cause of deflection and inconsistent sizing.
Short-Run Corrections (Small Batches)
If you are only processing a few components and need an immediate fix without a full teardown:
-
Housing Angle: Decrease the angle of the regulating wheel housing by small increments (approximately 1/8°) until the work reaches the correct diameter.
-
Operational Note: When employing this manual shift, do not dress the wheel or alter the angle of the truing attachment.
-
Alternative Method: You can achieve the same result by increasing the truing angle and retruing the wheel while leaving the housing angle unchanged.
Long-Run Corrections (High-Volume Production)
For sustained production where the wheel will require periodic maintenance, the adjustment must be integrated into the truing setup:
-
Truing Attachment Angle: Decrease the angle of the regulating wheel truing attachment by small amounts (approximately 1/8°).
-
Redressing: Once the angle is set, redress the wheel using your diamond dressing tools to lock in the new geometry.
-
Operational Note: In this instance, do not change the angle of the housing.
Precision Component Care
Maintaining the integrity of your workrest blades and ensuring a clean environment with fresh coolant filter paper rolls will help prevent the friction that contributes to guide deflection.
Whether you are working with ceramic grinding wheels or silicon carbide grinding wheels, mastering these minute angular adjustments is a vital part of centreless grinding training in the UK. Proper calibration ensures that your centreless grinding tools perform with the highest possible accuracy, eliminating taper and "low end" defects.
