Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2005-12-09
2009-08-04
Cozart, Jermie E (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S557000, C029S888061
Reexamination Certificate
active
07568273
ABSTRACT:
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The first and second walls may include concave regions within the grooves. The disclosure also provides cutting tools useful in practicing the methods, and cylindrical articles having interior or exterior surfaces roughened using the methods. The methods may have applications to fabrication of cylinder blocks for internal combustion engines.
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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, dated Mar. 10, 2006, for corresponding International Application PCT/IB2005/003724, 11 pages.
Iizumi Masahiko
Nishimura Kimio
Cozart Jermie E
Global IP Counselors, LLP
Nissan Motor Co,. Ltd.
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