Drilling method

Details Drilling method Drilling method

2006-07-20

2009-12-29

Howell, Daniel W (Department: 3726)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C408S013000, C700S175000, C700S193000

Reexamination Certificate

active

07637702

ABSTRACT:
There is provided a drilling method capable of improving machining accuracy of a printed board drilling apparatus as a whole by decreasing dispersion of the machining accuracy even if it is a multi-spindle printed board drilling apparatus. A misalignment of an axial center of a drill with respect to a designed axial center in X and Y directions is detected in advance per a certain number of revolutions of each spindle that rotates the drill. Holes of two or more types of diameter are made on a printed board by making holes of at least one diameter, e.g., an exposure master hole, per each spindle and by making holes of all other diameters almost simultaneously by all of the spindles.

REFERENCES:
patent: 4480364 (1984-11-01), Kosmowski
patent: 4967154 (1990-10-01), Marantette
patent: 6030154 (2000-02-01), Whitcomb et al.
patent: 6283681 (2001-09-01), Raiteri
patent: 57205010 (1982-12-01), None
patent: 04041110 (1992-02-01), None
patent: 04354659 (1992-12-01), None
patent: 05169352 (1993-07-01), None
patent: 2002127098 (2002-05-01), None
patent: 2003251508 (2003-09-01), None

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