专利名称：Segmented orbital drill发明人：Karen Anne Craig申请号：US13034139申请日：20110224公开号：US08858129B2公开日：20141014
专利附图：
摘要：A segmented orbital drill includes a segmented portion with a semi-finishingcutting portion and a plurality of finishing cutting portions. The semi-finishing cuttingportion and finishing cutting portions are separated by grooves formed by a front walland a rear wall. The segmented portion allows for a fresh cutting edge (i.e., rear wall of
the groove) to be revealed as the orbital drill wears in the axial direction. The segmentedportion also causes less contact with the workpiece, which reduces power consumptionand minimizes deflection of the orbital drill. The segmented orbital drill also includes anoptional pilot at one end of the drill, and a clearance neck portion between a shank andthe segmented portion. A method of machining a workpiece using the segmented orbitaldrill is also disclosed.
申请人：Karen Anne Craig
地址：Greensburg PA US
国籍：US
代理人：Larry R. Meenan, Esq.
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