Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-06-06
2006-06-06
Turner, Archene (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C051S307000, C051S309000, C428S698000, C428S699000
Reexamination Certificate
active
07056602
ABSTRACT:
The present invention relates to a cutting tool insert having a substrate and a coating, the coating is composed of one or more layers of refractory compounds of which at least one layer includes a precipitation hardened (TiyAlxMe1-x-y)N based layer, where Me is one of the elements: Zr, Hf, V, Nb, Ta, Cr, Mo, W or Si, and:x is between 0.50 and 0.80;the ratio, R=x/(x+y), is between 0.50 and 0.85;the sum of Ti and Al subscripts, S=x+y, is between 0.7 and 1.0;the ratio of the peak width, F10/90, (FW10% M or FW90% M meaning Full Width at 10% and 90% of the maximum peak value reduced with the background) measured on the 200 peak at approximately 43°2θ (using Cu Kα radiation) of the (TiyAlxMe1-x-y)N coating, according to FIG.4,is higher than 7.5;the ratio between the area of the h-AlN (100) peak at approximately 33°2θ (=A(h-AlN)100) and the c-(TiyAlxMe1-x-y)N (200) peak at approximately 43°2θ (=A(c-(Ti,Al,Me)N)200) called K, i.e. K=A(h-AlN)100/A(c-(Ti,Al,Me)N)200K is between 0 and 0.3; andthe layer a single (TiyAlxMe1-x-y)N (200) peak without several maxima.
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Hörling Anders
Hultman Lars
Karlsson Lennart
Sjölén Jacob
Drinker Biddle & Reath LLP
Seco Tools AB
Turner Archene
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