Chester John Dziedzic

US Patent:

53967887, Mar 14, 1995

Filed:

Sep 4, 1992

Appl. No.:

7/940617

Inventors:

Chester J. Dziedzic - Littleton CO
Andre Ezis - Vista CA
Roblee L. Talbott - Golden CO

Assignee:

Golden Technologies Company, Inc. - Golden CO

International Classification:

B21D 2228
B21C 302

US Classification:

72347

Abstract:

The present invention relates to improved materials for fabricating can bodies. In particular, the present invention relates to can tooling components fabricated from whisker-reinforced silicon nitride having from about 5 to about 15 weight percent whiskers with an average diameter of at least about 0. 75 micrometers. The material preferably has a thermal expansion coefficient of less than about 3. 5. times. 10. sup. -6 per. degree. C. and a friction coefficient of from about 0. 20 to about 0. 24. The present invention also provides a method for reducing the trim height of can bodies formed using a can tooling apparatus.

US Patent:

49617575, Oct 9, 1990

Filed:

Oct 26, 1989

Appl. No.:

7/426540

Inventors:

James F. Rhodes - Greer SC
Chester J. Dziedzic - Greenville SC
Ronald L. Beatty - Greer SC

Assignee:

Advanced Composite Materials Corporation - Greer SC

International Classification:

B24D 334

US Classification:

51309

Abstract:

Cutting tools are disclosed which are comprised of composite bodies comprising a ceramic matrix reinforced by ceramic whiskers. The ceramic matrix may be alumina or silicon nitride, and may contain toughening components. The whiskers are preferably silicon carbide, but may be other known ceramic whiskers. Whisker content in the composite is 2-40%, with higher contents generally used for tools when the expected service involves interrupted cutting and lower contents generally used for continuous cutting tools.

US Patent:

47892773, Dec 6, 1988

Filed:

Feb 23, 1988

Appl. No.:

7/161410

Inventors:

James F. Rhodes - Greer SC
Chester J. Dziedzic - Greenville SC
Ronald L. Beatty - Greer SC

Assignee:

Advanced Composite Materials Corporation - Greer SC

International Classification:

B23C 100
C04B 3556

US Classification:

409131

Abstract:

Cutting tools are disclosed which are comprised of composite bodies comprising a ceramic matrix reinforced by ceramic whiskers. The ceramic matrix may be alumina or silicon nitride, and may contain toughening components. The whiskers are preferably silicon carbide, but may be other known ceramic whiskers. Whisker content in the composite is 2-40%, with higher contents generally used for tools when the expected service involves interrupted cutting and lower contents generally used for continuous cutting tools.

US Patent:

54777224, Dec 26, 1995

Filed:

Mar 13, 1995

Appl. No.:

8/403471

Inventors:

Chester J. Dziedzic - Littleton CO
Andre Ezis - Vista CA
Roblee L. Talbott - Golden CO

Assignee:

Golden Technologies Company, Inc. - Golden CO

International Classification:

B21D 2228

US Classification:

72347

Abstract:

The present invention relates to improved materials for fabricating can bodies. In particular, the present invention relates to can tooling components fabricated from whisker-reinforced silicon nitride having from about 5 to about 15 weight percent whiskers with an average diameter of at least about 0. 75 micrometers. The material preferably has a thermal expansion coefficient of less than about 3. 5. times. 10. sup. -6 per. degree. C. and a friction coefficient of from about 0. 20 to about 0. 24. The present invention also provides a method for reducing the trim height of can bodies formed using a can tooling apparatus.