Drilling system and methods for deep hole drilling
AssigneeAllied Machine & Engineering Corp.
InventorsPaul W. Best, Salvatore D. Deluca, Lucas S. Dummermuth, David J. Carlisle
Life of this patent
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Abstract
A deep hole drilling system and methods provide stability and cutting performance to produce deep holes having desired straightness. The system may include a replaceable cutting head provided with a center cutting member and first and second side cutting inserts. The tool provides a major diameter with the OD cutting margins on the replaceable side inserts, as well as possibly cutting margins on the center cutting member. Adjustment mechanisms are provided to adjust the center cutting member and/side cutting inserts.
Claims20
A drilling system comprising a generally cylindrical body member having an outer surface and a front and rear end, the body member having a duct formed on the interior of the body member and extending from a pair of openings in the outer surface adjacent the front end and to the rear of the body member, the duct sized to receive and flush metal chips produced during drilling down the duct and out the rear of the body member;
- a replaceable cutting head mounted to the front end of the body member having a central cutting member with first and second cutting edges extending from the rotational axis of the cutting head, and first and second side cutting inserts, each side cutting insert being indexable and having first and second cutting edges, with one of the first and second cutting edges exposed for cutting and extending from adjacent the central insert to the major diameter of a hole, wherein each of the side cutting inserts have first and second cutting margins extending between each of the two cutting edges such that one of the first and second cutting margins is exposed at the major diameter of the hole the entire dimension of the side cutting insert.
A drilling system comprising a generally cylindrical body member having an outer surface and a front end, and a duct formed from a pair of openings in the outer surface and exiting through a rear of the body member, a replaceable cutting head mounted to the front end of the body member having a central cutting member with first and second cutting edges extending from the rotational axis of the cutting head, and first and second side cutting inserts, each having a cutting edge extending from adjacent the central insert to, and wherein the body member includes a pair of relieved areas extending along the exterior of the body member from the front end to the rear of the body member for channeling of drilling fluid to the cutting head, and an adjustment mechanism associated with each side cutting insert and the center cutting member to adjust each of the side cutting inserts and center cutting member.
Dependencies are inferred from the claim text.