Drilling apparatus and method
AssigneeDelphi Technologies, Inc.
InventorMichael Powell
Life of this patent
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Abstract
The invention provides a drilling apparatus and method for drilling a hole in a workpiece. The drilling apparatus includes means for rotating a drill bit and means for advancing the rotating drill bit into a workpiece to a first depth. The drilling apparatus further includes means for dwelling the drill bit within the workpiece at the first depth for a dwell time and means for further advancing the rotating bit to a second depth after the dwell time has expired. The drilling method includes rotating a drill bit and advancing the rotating drill bit into the workpiece to a first depth. The method farther includes dwelling the drill bit within the workpiece at the first depth for a dwell time and further advancing the rotating bit to a second depth after the dwell time has expired.
Claims14
A drilling apparatus composing:
- means for rotating a drill bit;
- means for advancing the rotating dull bit into a workpiece to a first depth;
- means for dwelling the drill bit within the workpiece at the first depth for a dwell time;
- means for further advancing the rotating bit to a second depth after the dwell time bits expired;
- means for determining at least one drilling parameter;
- and
- means for controlling at least one of the first depth, the dwell time, and the second depth based on the drilling parameter.
A method for drilling a hole in a workpiece, the method comprising:
- rotating a drill bit;
- advancing the rotating drill bit into the workpiece to a first depth;
- dwelling the drill bit within the workpiece at the first depth for a dwell time, wherein the dwell time is estimated from a dwell equation;
- and
- further advancing the rotating bit to a second depth after the dwell time has expired.
A method for drilling a hole in a workpiece, the method comprising:
- determining at least one drilling parameter;
- rotating a drill bit;
- advancing the rotating drill bit into die workpiece to a first depth;
- dwelling the drill bit within the workpiece at die first depth for a dwell time;
- further advancing the rotating bit to a second depth after the dwell time has expired;
- and
- controlling at least one of the first depth, the dwell time, and the second depth based on the drilling parameter.
Dependencies are inferred from the claim text.