Cutting tools and roughened articles using surface...

Details Cutting tools and roughened articles using surface... Cutting tools and roughened articles using surface...

2005-12-07

2009-11-24

McMahon, M. (Department: 3741)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

C029S888061, C408S026000

Reexamination Certificate

active

07621250

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 disclosure also provides cutting tools useful in practicing the surface roughening methods. The disclosure further describes cylindrical articles having interior or exterior surfaces roughened using the methods. The methods, cutting tools and articles have applications including fabrication of cylinder blocks for internal combustion engines.

REFERENCES:
patent: 3657078 (1972-04-01), Schweikher
patent: 4495907 (1985-01-01), Kamo
patent: 4597939 (1986-07-01), Neuhauser et al.
patent: 4706616 (1987-11-01), Yoshimitsu
patent: 6622685 (2003-09-01), Takahashi et al.
patent: RE39070 (2006-04-01), Stong et al.
patent: 2001/0023859 (2001-09-01), Beck et al.
patent: 2003/0010201 (2003-01-01), Takahashi et al.
patent: 101 47 219 (2003-04-01), None
patent: 2002-155350 (2002-05-01), None
patent: 2003-328108 (2003-11-01), None

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