发明名称 METHOD AND APPARATUS FOR FORMING AN INCOMPLETE HOLE IN A WORKPIECE
摘要 A method and apparatus for removing metal from a workpiece so as to form an incomplete hole therein is disclosed. The tool includes a shank having a plurality of cutting inserts adjustably attached to one end thereof. The cutting inserts are axially spaced apart from one another along the tool shank by a predetermined distance which is greater than the thickness of the workpiece. The first cutting insert functions as a drill or end mill to form a rough incomplete hole through the workpiece, while the second cutting insert functions as a boring tool to finish the incomplete hole. An opposite end of the tool shank is retained within a bore formed in a tool holder. The tool holder is supported within a conventional rotational means, such as a lathe. Both the opposite end of the tool shank and the bore formed in the tool holder are formed eccentrically to provide maximum flexibility in adjusting the rotational axis of the cutting inserts and, therefore, the diameter of the incomplete hole being formed.
申请公布号 CA1332793(C) 申请公布日期 1994.11.01
申请号 CA19890606404 申请日期 1989.07.21
申请人 DANA CORPORATION 发明人 CARSWELL, CHARLES W.
分类号 B23B35/00;B23C1/00;B25B5/14;(IPC1-7):B23B1/00 主分类号 B23B35/00
代理机构 代理人
主权项
地址