Stone working – Dressing
Reexamination Certificate
1999-10-25
2001-10-30
Rachuba, M. (Department: 3724)
Stone working
Dressing
C125S005000, C125S039000
Reexamination Certificate
active
06308700
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to dressers for trueing and dressing industrial grinding wheels.
BACKGROUND OF THE INVENTION
Dressers with diamond particles applied serve mainly to form surfaces of abrasive grinding tools which have been worn in operation. The forming of the abrasive grinding tool is done by a process where the surfaces of the abrasive grinding tool and the diamond dresser touch while rotating it different peripheral speeds. Such dressers are expensive, not only due to the cost of worn diamonds, but also due to the fact that only a small number of high accuracy dressers can be manufactured. Therefore, it is important that long dresser lifetimes are striven for. However, long dresser life is limited by abrasion to the diamond particle surfaces and the loosening of the diamond particle attached to the rotary symmetric body. The loosening of the diamond particle is caused by the vertical orientation or the diamond as well as the changed form of the diamond caused by abrasion and the low hardness resistance of the bonding metal to the heat of the dressing operation. Abrasion occurs first and foremost on the edges of the dresser since the diamond particles have lesser adhesion to an edge than they do to adjacent face.
SUMMARY OF THE INVENTION
The invention applies to a diamond dresser consisting of a symmetrical rotary body to which randomly distributed diamond particles are applied to the circumference and/or one of its faces and the process to manufacture. Diamond particles are applied to the dressers on their circumferential edge. i.e. directly on the circumferential edge or on the side surface adjoining the circumferential edge. The diamond particles are placed on the symmetrical body with metal bonding, and in this manner fastened to the surface of the rotary symmetric body. The fastening is done with galvanic or chemical plating.
The invention prevents the disadvantages of current state-of-the-art. It is the task of the invention to reduce, by simple means, the abrasion on the edges of the dresser, and thus achieve a substantial increase in dresser lifetime.
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DR Kaiser Co.
Mann Michael A
Nexsen Pruet Jacobs & Pollard LLC
Rachuba M.
LandOfFree
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