Alumina coated cutting tool

Details Alumina coated cutting tool Alumina coated cutting tool

1994-11-25

1998-12-22

Speer, Timothy

Stock material or miscellaneous articles

Composite

Of inorganic material

428698, 428699, 428701, 428702, B32B 1300

Patent

active

058516875

ABSTRACT:
A body with a coating comprising one or more refractory layers of which at least one layer is a layer of .alpha.-Al.sub.2 O.sub.3 textured in the (110)-direction is disclosed. Said alumina layer which is essentially free of cooling cracks, comprises platelike grains with a length of 2-8 .mu.m and a length/width ratio of 1-10, preferably 3-7. The coated tools according to the presently claimed invention show improved tool lives compared to prior art tools when used for machining steel or cast iron material.

REFERENCES:
patent: Re29420 (1977-09-01), Lindstrom et al.
patent: 3736107 (1973-05-01), Hale
patent: 3837896 (1974-09-01), Lindstrom et al.
patent: 3967035 (1976-06-01), Hale
patent: 4018631 (1977-04-01), Hale
patent: 4341834 (1982-07-01), Kikuchi
patent: 4399168 (1983-08-01), Kullander et al.
patent: 4463033 (1984-07-01), Kikuchi et al.
patent: 4490191 (1984-12-01), Hale
patent: 4619866 (1986-10-01), Smith et al.
patent: 5071696 (1991-12-01), Chatfield et al.
patent: 5123934 (1992-06-01), Katayama et al.
patent: 5137774 (1992-08-01), Ruppi
patent: 5162147 (1992-11-01), Ruppi
patent: 5487625 (1996-01-01), Ljungberg
C.-S. Park, et al., "Crystallographic Orientation and Surface Morphology of Chemical Vapor Deposited AI.sub.2 O.sub.3 ", Journal of the Electrochemical Society, vol. 130, No. 7, Jul. 1983, Manchester, New Hampshire, pp. 1607-1611.

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