CBN Grinding Wheel provides consistent finish.

Western Atlas, Inc. Sep 14, 2004

Press Release Summary:

CBN Grinding Wheel features multiple layers of bonded CBN with fine grain. Spacing between matrix is filled with proprietary composition designed to wear at similar rates as CBN-bearing matrix, producing same finish throughout life of wheel. Interrupted spring end cut allows heat of grind to be dissipated faster than continuous cut. Wheel is suited for grinding stainless steel, chrome vanadium, chrome silicon, music wire, and titanium.

Original Press Release:

New CBN Wheels from Gardner Win High-Speed Chase

When it comes to performance and finish in high-speed grinding applications, Gardner's new bonded CBN wheels edge out single-layer electroplated competitors

Chicago, Ill., Sept. 8, 2004 - Gardner Abrasives operation of Landis Gardner, A UNOVA Company, announces that it has developed a new grinding wheel utilizing bonded CBN for dry grinding of springs. The unique, patent-pending wheel design features multiple layers of CBN, resulting in a more consistent finish as well as better performance at speeds of 10,000 sfpm when compared to single-layer electroplated CBN wheels. Even better results have been obtained with wheel speed up to 24,000 sfm.

To maintain a more consistent finish, the Gardner CBN matrix uses a finer grain for a finer finish right from the start. The spacing between the matrix is filled with a proprietary composition designed to wear at a similar rate as its CBN-bearing matrix. Thus, unlike conventional CBN electroplate wheels that produce a very coarse finish when the wheel is new and which gradually improves as the single layer of CBN grain wears, the Gardner wheel produces the same fine finish throughout the life of the grinding wheel. The CBN matrix layers have been processed regularly with depths of 1 inch (25mm). Virtually no maintenance is required. Mount to your spindle collar, run several springs for break-in, then watch it grind and grind and grind.

Another advantage of the new bonded CBN wheel is reduced heat damage. The wheels have been designed to achieve an interrupted spring end cut, which allows the heat of grind to be dissipated faster than a continuous cut. Smaller CBN grain can be used which develops lower heat per grain cut path. Also, less heat is produced because the wheels are able to maintain a sharper cutting edge than, for example, conventional aluminum oxide or ceramic grain abrasives.

With these features, the new Gardner bonded CBN wheel is ideal for ultra-high speed spring grinding in a variety of hard metals. This range of materials includes stainless steel, chrome vanadium, chrome silicon, music wire as well as titanium.

Complete information on Gardner Abrasive's comprehensive line of high-performance abrasive products may be obtained by contacting Don Schlie at Gardner Abrasives, 481 Gardner St., South Beloit, IL 61080; telephone 800-325-0256; Web: www.gardnerabrasives.com.

About Gardner Abrasives
Gardner Abrasives, an operation of Landis Grinding Systems, designs and manufactures grinding and disc wheels. Landis Grinding Systems is a pioneer and world leader in the design and manufacture of precision cylindrical, centerless, and single- and double-disc grinding machines. Landis is part of UNOVA Industrial Automation Systems (NYSE:UNA).