Method and device for dressing grinding wheels

Details Method and device for dressing grinding wheels Method and device for dressing grinding wheels

1991-10-17

1993-03-16

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204217, 204272, 219 6915, 219 6917, B23H 712, B23H 508

Patent

active

051941260

ABSTRACT:
The invention relates to a method and a device for the electroerosive dressing of grinding wheels having an electrically conductive bond. The dressing tool comprises a cylindrical electrode pair divided into two, the electrodes (2, 3) of which have a different polarity and are separated from one another by insulation (4). A voltage circuit is directed via the two electrodes (2, 3). The voltage may either be a direct-current voltage of an alternating-current voltage. The dressing tool rotates and is pressed against the grinding wheel (1) with a constant force. The two dressing electrodes (2, 3) are supplied with current from a generator (7) via brushes (5,6) in such a way that it flows through the electrode (3) into the grinding wheel (1and from the latter back into the other electrode (2). The commutator-like arrangement of the two electrodes (2,3) and the brushes (5, 6) causes upon rotation a periodic alternation in the plurality of the applied voltage, which permits more uniform dressing in a simple and effective way.

REFERENCES:
patent: 2764543 (1956-09-01), Comstock et al.
patent: 3285843 (1966-11-01), Blake
patent: 3395092 (1968-07-01), Ribes
patent: 4236985 (1980-12-01), Grodinsky et al.
patent: 4849599 (1989-07-01), Kuromatsu
patent: 4937416 (1990-06-01), Kubota et al.
patent: 5108561 (1992-04-01), Kuromatsu
Soviet Engineering Research 7 (1987) Dec., No. 12, Melton Mowbray, Gt. Britain, Improvement of Contact Erosion Dressing of Diamond Wheels with an End Working Surface.
Soviet Engineering Research 7 (1987), Melton Mowbray, Gt. Britain, "Contact Erosion dressing of Diamond Wheels with a Face-Type Working Surface".

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