Turning – Process of turning
Reexamination Certificate
2006-12-19
2010-10-12
Prone, Jason Daniel (Department: 3724)
Turning
Process of turning
C407S119000, C700S052000, C700S173000
Reexamination Certificate
active
07810417
ABSTRACT:
In a cutting method of an oblique surface by a rotary tool, for analyzing in advance a stability limit depth of cut with respect to a self-excited cutting vibration in consideration of a pick feed amount and a work oblique angle and reducing the number of steps necessary for preparation and correction of NC data, a tool diameter, the number of cutting teeth and dynamic stiffness of the rotary tool, a cutting force coefficient determined by a combination of the tool and work materials, dynamic stiffness of the work, the pick feed amount, oblique angles between the tool and the work and the like are used as input values, an initial value of the stability limit depth of cut is determined based on the input values, and calculation is performed based on the initial value. In this case, the initial value is compared with the calculated value, the initial value is corrected by a certain rule, and the calculation is repeated until both the initial value and the calculated value fall in a constant error range to thereby calculate the stability limit depth of cut during the oblique cutting.
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Kyoi Masayuki
Onozuka Hideaki
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Prone Jason Daniel
Swinney Jennifer
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