Dressing and Conditioning

Dressing and Conditioning

Dressing and conditioning are necessary for keeping your superabrasive grinding wheel in ultimate working condition.

Dressing gives the grinding wheel its geometrical accuracy and makes it run true, while conditioning opens up the grinding wheel and exposes the abrasive grit by clearing away bond material from around the cutting edges.

Dressing and conditioning are needed if your grinding wheel gets clogged, dirty or suffers any form of deterioration in its grinding ability.

The same is true in the case of replacing grinding edges or straightening the surface of the wheel.

Dressing and truing operations should be performed only after assembling and balancing the grinding wheel on the spindle.

Dressing should be done with a vitrified silicon carbide wheel with the appropriate grain size, according to the table below.

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The dressing operation can be performed wet or dry.

Surface speed of diamond wheel 300 rpm.

Surface speed of SiC wheel 15-20 m/s.

For safety and efficiency of use, the device should be held securely by a magnetic table or by bolts where possible. On surface grinders, the spindle of the truing device must be parallel to the wheel axis.

The devise must be placed in such a way that the truing wheel rotation does not unscrew the securing bolts (the correct direction of rotation is indicated by an arrow on the unit).

This truing device can only be used dry.

Turn the wheel spindle to full operating speed and move the grinding wheel into close contact with the truing wheel. Prior to contact, rotate the truing wheel by hand, using the knurled screw, to avoid wearing the truing wheel flat.

Feed by about 0.01 mm per pass using a traverse feed rate of 1-2 m/min, while traversing the diamond or CBN wheel across the full width of the truing wheel.

Dressing CBN wheel is carried out with multi-point metal bond diamond dresser. The dressing traverse feed rate should be at least 500-700 mm/min.

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